{"id":29590,"date":"2019-04-29T16:31:19","date_gmt":"2019-04-29T16:31:19","guid":{"rendered":"https:\/\/www.enerpro-inc.com\/?page_id=29590"},"modified":"2019-08-29T18:23:41","modified_gmt":"2019-08-29T18:23:41","slug":"frs300","status":"publish","type":"page","link":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/","title":{"rendered":"FRS300"},"content":{"rendered":"[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; _builder_version=&#8221;3.22.3&#8243; background_image=&#8221;https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/03\/Piping.jpg&#8221; fb_built=&#8221;1&#8243; _i=&#8221;0&#8243; _address=&#8221;0&#8243;][et_pb_fullwidth_header title=&#8221;FRS300 Firing\/Regulator\/Snubber Board&#8221; _builder_version=&#8221;3.27.3&#8243; title_font=&#8221;||||||||&#8221; title_text_shadow_style=&#8221;preset1&#8243; title_text_shadow_color=&#8221;rgba(0,0,0,0.14)&#8221; background_color=&#8221;rgba(38,142,197,0.89)&#8221; custom_padding=&#8221;34px||34px||true&#8221; text_shadow_style=&#8221;preset1&#8243; text_shadow_color=&#8221;rgba(0,0,0,0.25)&#8221; hover_enabled=&#8221;0&#8243; _i=&#8221;0&#8243; _address=&#8221;0.0&#8243;][\/et_pb_fullwidth_header][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;3.22.3&#8243; fb_built=&#8221;1&#8243; _i=&#8221;1&#8243; _address=&#8221;1&#8243;][et_pb_row column_structure=&#8221;3_5,2_5&#8243; _builder_version=&#8221;3.25&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; _i=&#8221;0&#8243; _address=&#8221;1.0&#8243;][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221; _i=&#8221;0&#8243; _address=&#8221;1.0.0&#8243;][et_pb_text _builder_version=&#8221;3.27.3&#8243; hover_enabled=&#8221;0&#8243; _i=&#8221;0&#8243; _address=&#8221;1.0.0.0&#8243;]\n<h2>Three-Phase Semi Converter Board<\/h2>\n<p>The FRS300 <span>firing\/regulator\/snubber board<\/span> is specifically designed for three-phase semiconverter applications. It includes our ASIC-based firing circuit, a current and voltage regulator, and a snubber circuit integrated on a single board. This provides a complete, compact and economical package for battery chargers, welding equipment, and DC bus generation where power quality is not an issue.<\/p>\n[\/et_pb_text][et_pb_text _builder_version=&#8221;3.26.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; custom_padding=&#8221;||0px|||&#8221; _i=&#8221;1&#8243; _address=&#8221;1.0.0.1&#8243;]\n<h3>Key Features<\/h3>\n<ul>\n<li>Economical one-board solution<\/li>\n<li>Built-in voltage and current regulation<\/li>\n<li>Configured for three-phase SCR\/diode semiconverters<\/li>\n<li>Analog Delay Angle Command Signal (SIG HI)<\/li>\n<li>Soft-Start and Soft-Stop<\/li>\n<li>Phase Loss Inhibit<\/li>\n<li>Instant Enable and Inhibit<\/li>\n<li>Snubber Circuit<\/li>\n<li>High Current Picket Fence Gate Drive<\/li>\n<li>Analog Delay Determinator Circuit<\/li>\n<li>Control Power Options: powered from an external 30 VDC or 24 Vac source.<\/li>\n<li>Assembled in the USA<\/li>\n<\/ul>\n[\/et_pb_text][et_pb_text _builder_version=&#8221;3.22.2&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; _i=&#8221;2&#8243; _address=&#8221;1.0.0.2&#8243;]\n<h3>Applications<\/h3>\n<ul>\n<li>DC Bus Capacitor Chargers<\/li>\n<li>Battery Chargers<\/li>\n<li>Corrosion-Protecting Semi-converters<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221; _i=&#8221;1&#8243; _address=&#8221;1.0.1&#8243;][et_pb_image src=&#8221;https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/FRS300-bg2-2.jpg&#8221; alt=&#8221;FRS300 Firing Board&#8221; align_tablet=&#8221;center&#8221; align_last_edited=&#8221;on|desktop&#8221; _builder_version=&#8221;3.23&#8243; border_width_all=&#8221;1px&#8221; border_color_all=&#8221;rgba(51,51,51,0.09)&#8221; box_shadow_style=&#8221;preset1&#8243; box_shadow_spread=&#8221;18px&#8221; box_shadow_color=&#8221;rgba(0,0,0,0.03)&#8221; _i=&#8221;0&#8243; _address=&#8221;1.0.1.0&#8243;][\/et_pb_image][et_pb_text _builder_version=&#8221;3.24.1&#8243; text_font=&#8221;||||||||&#8221; text_line_height=&#8221;2.2em&#8221; width=&#8221;100%&#8221; global_module=&#8221;131279&#8243; saved_tabs=&#8221;all&#8221; _i=&#8221;1&#8243; _address=&#8221;1.0.1.1&#8243;]\n<p><a href=\"\/downloads\/three-phase\/PD740-FRS300-Product-Guide.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png\" width=\"17\" height=\"22\" alt=\"\" class=\"wp-image-29508 alignnone size-full\" \/>\u00a0Product Guide<\/a><br \/> <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png\" width=\"17\" height=\"22\" alt=\"\" class=\"wp-image-29508 alignnone size-full\" \/><a href=\"\/downloads\/three-phase\/M2620-FRS300-Mechanical-Drawing.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\u00a0Mechanical Drawing<\/a><br \/> <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png\" width=\"17\" height=\"22\" alt=\"\" class=\"wp-image-29508 alignnone size-full\" \/>\u00a0<a href=\"\/downloads\/three-phase\/E1115-FRS300-Web-Schematic.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">Schematic<\/a><\/p>\n[\/et_pb_text][et_pb_sidebar area=&#8221;et_pb_widget_area_4&#8243; _builder_version=&#8221;3.23.3&#8243; _i=&#8221;2&#8243; _address=&#8221;1.0.1.2&#8243;][\/et_pb_sidebar][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;3.25&#8243; _i=&#8221;1&#8243; _address=&#8221;1.1&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221; _i=&#8221;0&#8243; _address=&#8221;1.1.0&#8243;][et_pb_toggle title=&#8221;Technical Details&#8221; icon_color=&#8221;#268ec5&#8243; _builder_version=&#8221;3.22.5&#8243; title_text_color=&#8221;#000000&#8243; title_font=&#8221;||||||||&#8221; title_font_size=&#8221;20px&#8221; body_font=&#8221;||||||||&#8221; background_color=&#8221;#ffffff&#8221; border_radii=&#8221;on|10px|10px|10px|10px&#8221; box_shadow_style=&#8221;preset1&#8243; box_shadow_color=&#8221;rgba(0,0,0,0.12)&#8221; custom_padding=&#8221;2vw|3vw|2vw|3vw|true|true&#8221; _i=&#8221;0&#8243; _address=&#8221;1.1.0.0&#8243;]\n<p>The FRS300\u00a0 includes the following features:<\/p>\n<ul>\n<li>Analog Delay Angle Command Signal (SIG HI): Users may choose a variety of DC control signal ranges including 0-5 V, 0-10 V, 4-20 mA, or custom ranges.<\/li>\n<li>Soft-Start and Soft-Stop: Upon soft-start, SCR firing is enabled and the delay angle command ramps from the maximum value to the setpoint value determined by the SIG HI command signal. Upon soft-stop, the delay angle ramps from the setpoint value to the maximum value after which SCR firing is inhibited.<\/li>\n<li>Phase Loss Inhibit: A phase loss circuit instantly inhibits SCR firing if a loss of one or more phases or gross phase imbalance is sensed on the AC line. Firing will soft-start when such a fault is cleared.<\/li>\n<li>Instant Enable and Inhibit: A contact closure (relay, switch, transistor) instantly enables or inhibits SCR firing at the delay angle commanded by the delay angle command signal (SIG HI).<\/li>\n<li>Regulator Circuit: The board typically operates in voltage or current regulation mode, depending upon which error signal is larger. This allows a seamless transition from voltage to current regulation or vice-versa.<\/li>\n<li>Snubber Circuit: The snubber section consists of three RC circuits connected to the SCR anodes and cathodes.<\/li>\n<li>High Current Picket Fence Gate Drive: The transformer-isolated gate drive circuits provide a hard firing initial 13 V open circuit\/1.3 A short circuit firing pulse followed by sustaining &#8220;back porch&#8221; pulses at 6 V open circuit\/0.5 A short circuit. The gate pulse burst frequency is 384 times the mains voltage frequency.<\/li>\n<li>Analog Delay Determinator Circuit: Enerpro&#8217;s gate delay determinator circuit is based on the Ainsworth three-phase PLL circuit and implemented with a proprietary ASIC. This circuit adjusts the gate delay firing angle in negative proportion to the SIG HI command. Gate drive phase balance is typically less than \u00b11\u00b0.<\/li>\n<li>Control Power Options: The FRS300 is powered from an external 30 VDC or 24 Vac source.<\/li>\n<li>Board Construction: All circuit boards are assembled at the Enerpro plant in Goleta, California and are manufactured by a UL-approved fabricator from 2.4 mm thick FR4 fire resistant fiberglass epoxy laminate. All boards are conformal coated (MIL-1-46058, Type UR)<\/li>\n<\/ul>\n[\/et_pb_toggle][et_pb_code _builder_version=&#8221;3.27.1&#8243; _i=&#8221;1&#8243; _address=&#8221;1.1.0.1&#8243;]<div class=\"su-accordion su-u-trim\"><!-- &#091;et_pb_line_break_holder&#093; -->  <div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Configure Your Board<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f29596-o1\" lang=\"en-US\" dir=\"ltr\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/wp-json\/wp\/v2\/pages\/29590#wpcf7-f29596-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<div style=\"display: none;\">\n<input type=\"hidden\" name=\"_wpcf7\" value=\"29596\" \/>\n<input type=\"hidden\" name=\"_wpcf7_version\" value=\"5.9.3\" \/>\n<input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/>\n<input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f29596-o1\" \/>\n<input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/>\n<input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/div>\n<p><label> Your Name (required)<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span> <\/label><br \/>\n<label> Your Email (required)<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span> <\/label><br \/>\n<label> Your Phone (required)<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"phone\"><input size=\"40\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"tel\" name=\"phone\" \/><\/span> <\/label><br \/>\nCompany<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"company\"><input size=\"40\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"company\" \/><\/span>\n<\/p>\n<h4>FRS300 3-Phase Half-Controlled Rectifier Regulator, and Snubber Board: Configuration\n<\/h4>\n<h4>Snubber Circuit:\n<\/h4>\n<p>1 = Omit<br \/>\n2 = Install<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"snubber\"><select class=\"wpcf7-form-control wpcf7-select\" aria-invalid=\"false\" name=\"snubber\"><option value=\"1\">1<\/option><option value=\"2\">2<\/option><\/select><\/span>\n<\/p>\n<h4>Regulation:\n<\/h4>\n<p>1 = Open Loop<br \/>\n2 = Voltage Regulation with Current Limit<br \/>\n3 = Voltage Regulation Only<br \/>\n4 = Current Limit Only<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"regulation\"><select class=\"wpcf7-form-control wpcf7-select\" aria-invalid=\"false\" name=\"regulation\"><option value=\"1\" selected=\"selected\">1<\/option><option value=\"2\">2<\/option><option value=\"3\">3<\/option><option value=\"4\">4<\/option><\/select><\/span>\n<\/p>\n<h4>J1 & J2 Header Type:\n<\/h4>\n<p>0 = Horizontal<br \/>\n1 = Vertical<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"j1j2\"><select class=\"wpcf7-form-control wpcf7-select\" aria-invalid=\"false\" name=\"j1j2\"><option value=\"0\" selected=\"selected\">0<\/option><option value=\"1\">1<\/option><\/select><\/span>\n<\/p>\n<h4>CT Ratio:\n<\/h4>\n<p>XX = 1.0 A maximum CT current<br \/>\n10<br \/>\n100\/1<br \/>\nOther - please specify<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"checkbox-ct\"><span class=\"wpcf7-form-control wpcf7-checkbox wpcf7-exclusive-checkbox\"><span class=\"wpcf7-list-item first\"><input type=\"checkbox\" name=\"checkbox-ct\" value=\"XX\" \/><span class=\"wpcf7-list-item-label\">XX<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"checkbox-ct\" value=\"10\" \/><span class=\"wpcf7-list-item-label\">10<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"checkbox-ct\" value=\"100\/1\" \/><span class=\"wpcf7-list-item-label\">100\/1<\/span><\/span><span class=\"wpcf7-list-item last has-free-text\"><input type=\"checkbox\" name=\"checkbox-ct\" value=\"Other\" \/><span class=\"wpcf7-list-item-label\">Other<\/span> <input type=\"text\" name=\"_wpcf7_free_text_checkbox-ct\" class=\"wpcf7-free-text\" \/><\/span><\/span><\/span>\n<\/p>\n<h4>Command Signal:\n<\/h4>\n<p>1 = 0 - 5 V<br \/>\n2 = 0 - 10 V<br \/>\n3 = 4 - 20mA<br \/>\nOther - please specify<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"command\"><span class=\"wpcf7-form-control wpcf7-checkbox wpcf7-validates-as-required wpcf7-exclusive-checkbox\"><span class=\"wpcf7-list-item first\"><input type=\"checkbox\" name=\"command\" value=\"1\" \/><span class=\"wpcf7-list-item-label\">1<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"command\" value=\"2\" \/><span class=\"wpcf7-list-item-label\">2<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"command\" value=\"3\" \/><span class=\"wpcf7-list-item-label\">3<\/span><\/span><span class=\"wpcf7-list-item last has-free-text\"><input type=\"checkbox\" name=\"command\" value=\"Other\" \/><span class=\"wpcf7-list-item-label\">Other<\/span> <input type=\"text\" name=\"_wpcf7_free_text_command\" class=\"wpcf7-free-text\" \/><\/span><\/span><\/span>\n<\/p>\n<h4>SCR Mains Voltage:\n<\/h4>\n<p>05 = 50 V<br \/>\n10 = 100 V<br \/>\n12 = 120 V<br \/>\n38 = 380 V<br \/>\n40 = 400 V<br \/>\n48 = 480 V<br \/>\nOther - please specify<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"SCR\"><span class=\"wpcf7-form-control wpcf7-checkbox wpcf7-validates-as-required wpcf7-exclusive-checkbox\"><span class=\"wpcf7-list-item first\"><input type=\"checkbox\" name=\"SCR\" value=\"05\" \/><span class=\"wpcf7-list-item-label\">05<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"SCR\" value=\"10\" \/><span class=\"wpcf7-list-item-label\">10<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"SCR\" value=\"12\" \/><span class=\"wpcf7-list-item-label\">12<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"SCR\" value=\"38\" \/><span class=\"wpcf7-list-item-label\">38<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"SCR\" value=\"40\" \/><span class=\"wpcf7-list-item-label\">40<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"SCR\" value=\"48\" \/><span class=\"wpcf7-list-item-label\">48<\/span><\/span><span class=\"wpcf7-list-item last has-free-text\"><input type=\"checkbox\" name=\"SCR\" value=\"Other\" \/><span class=\"wpcf7-list-item-label\">Other<\/span> <input type=\"text\" name=\"_wpcf7_free_text_SCR\" class=\"wpcf7-free-text\" \/><\/span><\/span><\/span>\n<\/p>\n<h4>Mains Frequency:\n<\/h4>\n<p>50 = 50 Hz<br \/>\n60 = 60 Hz<br \/>\n5\/6 = 50 or 60 Hz<br \/>\n400 = 400 Hz<br \/>\nOther - please specify<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"mains\"><span class=\"wpcf7-form-control wpcf7-checkbox wpcf7-validates-as-required wpcf7-exclusive-checkbox\"><span class=\"wpcf7-list-item first\"><input type=\"checkbox\" name=\"mains\" value=\"50\" \/><span class=\"wpcf7-list-item-label\">50<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"mains\" value=\"60\" \/><span class=\"wpcf7-list-item-label\">60<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"mains\" value=\"5\/6\" \/><span class=\"wpcf7-list-item-label\">5\/6<\/span><\/span><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"mains\" value=\"400\" \/><span class=\"wpcf7-list-item-label\">400<\/span><\/span><span class=\"wpcf7-list-item last has-free-text\"><input type=\"checkbox\" name=\"mains\" value=\"Other\" \/><span class=\"wpcf7-list-item-label\">Other<\/span> <input type=\"text\" name=\"_wpcf7_free_text_mains\" class=\"wpcf7-free-text\" \/><\/span><\/span><\/span>\n<\/p>\n<h4>Rectifier Filter:\n<\/h4>\n<p>1= None<br \/>\n2= Capacitor<br \/>\n3= Inductor<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"rectifier\"><select class=\"wpcf7-form-control wpcf7-select\" aria-invalid=\"false\" name=\"rectifier\"><option value=\"1\" selected=\"selected\">1<\/option><option value=\"2\">2<\/option><option value=\"3\">3<\/option><\/select><\/span>\n<\/p>\n<h4>Special Requirements:\n<\/h4>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"textarea-559\"><textarea cols=\"40\" rows=\"10\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" name=\"textarea-559\"><\/textarea><\/span>\n<\/p>\n<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Send\" \/>\n<\/p><input type=\"hidden\" id=\"ct_checkjs_cf7_2723d092b63885e0d7c260cc007e8b9d\" name=\"ct_checkjs_cf7\" value=\"0\" \/><script >setTimeout(function(){var ct_input_name = \"ct_checkjs_cf7_2723d092b63885e0d7c260cc007e8b9d\";if (document.getElementById(ct_input_name) !== null) {var ct_input_value = document.getElementById(ct_input_name).value;document.getElementById(ct_input_name).value = document.getElementById(ct_input_name).value.replace(ct_input_value, '378637654');}}, 1000);<\/script><label class=\"apbct_special_field\" id=\"apbct_label_id51834\" for=\"apbct__email_id__wp_contact_form_7_51834\">51834<\/label><input \n        id=\"apbct__email_id__wp_contact_form_7_51834\" \n        class=\"apbct_special_field apbct__email_id__wp_contact_form_7\"\n        autocomplete=\"off\" \n        name=\"apbct__email_id__wp_contact_form_7_51834\"  \n        type=\"text\" \n        value=\"51834\" \n        size=\"30\" \n        apbct_event_id=\"51834\"\n        maxlength=\"200\" \n    \/><input \n        id=\"apbct_event_id\"\n        class=\"apbct_special_field\"\n        name=\"apbct_event_id\"\n        type=\"hidden\" \n        value=\"51834\" \n            \/><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n<\/div><\/div><!-- &#091;et_pb_line_break_holder&#093; --><\/div><!-- [et_pb_line_break_holder] -->[\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; module_class=&#8221;customfooter&#8221; _builder_version=&#8221;3.26&#8243; background_color=&#8221;#2A2A2A&#8221; min_height=&#8221;458px&#8221; custom_padding=&#8221;||0px|||&#8221; global_module=&#8221;131558&#8243; saved_tabs=&#8221;all&#8221; fb_built=&#8221;1&#8243; _i=&#8221;3&#8243; _address=&#8221;3&#8243;][et_pb_row column_structure=&#8221;1_5,1_5,1_5,1_5,1_5&#8243; _builder_version=&#8221;3.26&#8243; width=&#8221;90%&#8221; max_width=&#8221;1440px&#8221; _i=&#8221;0&#8243; _address=&#8221;2.0&#8243;][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;3.26&#8243; _i=&#8221;0&#8243; _address=&#8221;2.0.0&#8243;][et_pb_text module_id=&#8221;customfoot&#8221; _builder_version=&#8221;3.26.6&#8243; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;13px&#8221; text_line_height=&#8221;1.9em&#8221; header_4_text_color=&#8221;#ffffff&#8221; header_4_font_size=&#8221;16px&#8221; header_4_line_height=&#8221;1.2em&#8221; _i=&#8221;0&#8243; _address=&#8221;2.0.0.0&#8243;]\n<h4 class=\"title\">UNITED STATES<\/h4>\n<p>Enerpro, Inc.<br \/> Global Headquarters<br \/> 99 Aero Camino<br \/> Goleta, CA 93117<\/p>\n<p><a href=\"mailto:info@enerpro-inc.com\" target=\"_blank\" rel=\"noopener noreferrer\">info@enerpro-inc.com<\/a><br \/> <a href=\"https:\/\/www.enerpro-inc.com\/undefined\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.enerpro-inc.com<\/a><\/p>\n<p>Toll Free: (877) 648-2114<br \/> Tel: (805) 683-2114<br \/> Fax: (805) 964-0798<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;3.26&#8243; _i=&#8221;1&#8243; _address=&#8221;2.0.1&#8243;][et_pb_text module_id=&#8221;customfoot&#8221; _builder_version=&#8221;3.26.6&#8243; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;13px&#8221; text_line_height=&#8221;1.9em&#8221; header_4_text_color=&#8221;#ffffff&#8221; header_4_font_size=&#8221;16px&#8221; header_4_line_height=&#8221;1.2em&#8221; _i=&#8221;0&#8243; _address=&#8221;2.0.1.0&#8243;]\n<h4 class=\"title\">CANADA<\/h4>\n<p>ICT Power Company Inc.<br \/>1220 Corporate Dr.<br \/>Burlington, ON L7L 5R6<br \/>Canada<\/p>\n<p><a href=\"mailto:sales@ictpower.com\" target=\"_blank\" rel=\"noopener noreferrer\">sales@ictpower.com<\/a><br \/><a href=\"http:\/\/www.ictpower.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.ictpower.com<\/a><\/p>\n<p>Tel: 905.631.8494<br \/>Fax: 905.631.8495<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;3.26&#8243; _i=&#8221;2&#8243; _address=&#8221;2.0.2&#8243;][et_pb_text module_id=&#8221;customfoot&#8221; _builder_version=&#8221;3.26.6&#8243; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;13px&#8221; text_line_height=&#8221;1.9em&#8221; header_4_text_color=&#8221;#ffffff&#8221; header_4_font_size=&#8221;16px&#8221; header_4_line_height=&#8221;1.2em&#8221; _i=&#8221;0&#8243; _address=&#8221;2.0.2.0&#8243;]\n<h4 class=\"title\">MEXICO<\/h4>\n<p>Electronica Integral De Puebla, SA DE CV<br \/> Jose Guadalupe Posada 1413\u00a0col. Satelite<br \/> Puebla, Pue. 72320<br \/> Mexico<\/p>\n<p><a href=\"mailto:%20ventas@eipsamex.com\" target=\"_blank\" rel=\"noopener noreferrer\">ventas@eipsamex.com<\/a><br \/> <a href=\"mailto:%20eipsamex@yahoo.com.mx\">eipsamex@yahoo.com.mx<\/a><br \/> <a href=\"http:\/\/www.eipsamex.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.eipsamex.com<br \/><\/a>Tel: +52 (222) 2343406<br \/> Fax: +52 (222) 2344205<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;3.26&#8243; _i=&#8221;3&#8243; _address=&#8221;2.0.3&#8243;][et_pb_text module_id=&#8221;customfoot&#8221; _builder_version=&#8221;3.26.7&#8243; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;13px&#8221; text_line_height=&#8221;1.9em&#8221; header_4_text_color=&#8221;#ffffff&#8221; header_4_font_size=&#8221;16px&#8221; header_4_line_height=&#8221;1.2em&#8221; _i=&#8221;0&#8243; _address=&#8221;2.0.3.0&#8243;]\n<h4 class=\"title\">UNITED KINGDOM<\/h4>\n<p>Andrew Chettle<br \/> Power Products International Limited<br \/> Commerce Way<br \/> Edenbridge<br \/> Kent TN8 6ED<\/p>\n<p><a href=\"mailto:%20%20sales@ppi-uk.com\" target=\"_blank\" rel=\"noopener noreferrer\">sales@ppi-uk.com<br \/> <\/a><a href=\"http:\/\/www.ppi-uk.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.ppi-uk.com<\/a><br \/> Tel: 01732 866424<br \/> Fax: 01732 866399<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;3.26&#8243; _i=&#8221;4&#8243; _address=&#8221;2.0.4&#8243;][et_pb_text module_id=&#8221;customfoot&#8221; _builder_version=&#8221;3.26.6&#8243; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;13px&#8221; text_line_height=&#8221;1.9em&#8221; header_4_text_color=&#8221;#ffffff&#8221; header_4_font_size=&#8221;16px&#8221; header_4_line_height=&#8221;1.2em&#8221; _i=&#8221;0&#8243; _address=&#8221;2.0.4.0&#8243;]\n<h4 class=\"title\">ITALY, SLOVENIA, SLOVAKIA, CZECH REPUBLIC<\/h4>\n<p>Bruno Passerini<br \/>G.P.S. \u2013 Green Power Solutions SRL<br \/>Via Venezia 34D<br \/>10088 Volpiano \u2013 Torino<br \/>Italy<\/p>\n<p><a href=\"mailto:%20info@gpsemi.it\" target=\"_blank\" rel=\"noopener noreferrer\">info@gpsemi.it<\/a><br \/><a href=\"http:\/\/www.gpsemi.it\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.gpsemi.it<\/a><br \/>Tel: +39 011 9882251<br \/>Fax: +39 011 9881358<\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_5,1_5,1_5,1_5,1_5&#8243; _builder_version=&#8221;3.26.6&#8243; width=&#8221;90%&#8221; max_width=&#8221;1440px&#8221; _i=&#8221;1&#8243; _address=&#8221;2.1&#8243;][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;3.26&#8243; _i=&#8221;0&#8243; _address=&#8221;2.1.0&#8243;][et_pb_text module_id=&#8221;customfoot&#8221; _builder_version=&#8221;3.26.6&#8243; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;13px&#8221; text_line_height=&#8221;1.6em&#8221; header_4_text_color=&#8221;#ffffff&#8221; header_4_font_size=&#8221;16px&#8221; header_4_line_height=&#8221;1.2em&#8221; _i=&#8221;0&#8243; _address=&#8221;2.1.0.0&#8243;]\n<h4 class=\"title\">TECHNICAL SUPPORT<\/h4>\n<p>Design Support<br \/>\nIn-Service Support<br \/>\nToll Free: (877) 648-2114<br \/>\n(805) 683-2114<br \/>\n<a href=\"mailto:support@enerpro-inc.com\">support@enerpro-inc.com<\/a><\/p>\n<p><a href=\"https:\/\/www.enerpro-inc.com\/images\/stories\/enerpro\/Support\/Enerpro_Sales_Policy_2015.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">Sales Policy<br \/>\n<\/a><a href=\"https:\/\/www.enerpro-inc.com\/support\/190\" target=\"_blank\" rel=\"noopener noreferrer\">RMA Policy<br \/>\n<\/a><a href=\"https:\/\/www.enerpro-inc.com\/images\/stories\/enerpro\/Support\/RMA_Request_Form_Web.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">RMA Request Form<\/a><\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;3.26&#8243; _i=&#8221;1&#8243; _address=&#8221;2.1.1&#8243;][et_pb_text module_id=&#8221;customfoot&#8221; _builder_version=&#8221;3.26.6&#8243; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;13px&#8221; text_line_height=&#8221;1.9em&#8221; header_4_text_color=&#8221;#ffffff&#8221; header_4_font_size=&#8221;16px&#8221; header_4_line_height=&#8221;1.2em&#8221; _i=&#8221;0&#8243; _address=&#8221;2.1.1.0&#8243;]\n<h4 class=\"title\">SCANDINAVIA<\/h4>\n<p>MPE Cathodic AS<br \/> P. O. Box 74<br \/> N1581 Rygge, Norway<br \/> Marine &amp; Offshore<br \/> Jotun ICCP Specialists<\/p>\n<p><a href=\"mailto:emil@mpecathodic.no\" target=\"_blank\" rel=\"noopener noreferrer\">emil@mpecathodic.no<\/a><br \/> <a href=\"mailto:%20roy@mpecathodic.no\" target=\"_blank\" rel=\"noopener noreferrer\">roy@mpecathodic.no<\/a><br \/> <a href=\"http:\/\/www.mpecathodic.no\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.mpecathodic.no<\/a><br \/>Tel: +47 69 23 29 00<br \/> Fax: +47 69 23 29 01<br \/> Mob: +47 95 11 81 82<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;3.26&#8243; _i=&#8221;2&#8243; _address=&#8221;2.1.2&#8243;][et_pb_text module_id=&#8221;customfoot&#8221; _builder_version=&#8221;3.27.3&#8243; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;13px&#8221; text_line_height=&#8221;1.9em&#8221; header_4_text_color=&#8221;#ffffff&#8221; header_4_font_size=&#8221;16px&#8221; header_4_line_height=&#8221;1.2em&#8221; _i=&#8221;0&#8243; _address=&#8221;2.1.2.0&#8243;]\n<h4 class=\"title\">SOUTH AMERICA<\/h4>\n<p>Andes Controls, Power and Automation<br \/> Cristi\u00e1n Ladisla Bohn<br \/> Av. Holanda 099, Oficina 1101<br \/> Providencia, Santiago, Chile<\/p>\n<p><a href=\"mailto:contact@andescpa.com\">contact@andescpa.com<\/a><br \/> <a href=\"http:\/\/andescpa.com\/\">http:\/\/andescpa.com\/<\/a><br \/> Tel: +56 2 2306 6202<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;3.26&#8243; _i=&#8221;3&#8243; _address=&#8221;2.1.3&#8243;][et_pb_text module_id=&#8221;customfoot&#8221; _builder_version=&#8221;3.26.6&#8243; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;13px&#8221; text_line_height=&#8221;1.9em&#8221; header_4_text_color=&#8221;#ffffff&#8221; header_4_font_size=&#8221;16px&#8221; header_4_line_height=&#8221;1.2em&#8221; _i=&#8221;0&#8243; _address=&#8221;2.1.3.0&#8243;]\n<h4 class=\"title\">THAILAND, MALAYSIA, VIETNAM, PHILIPPINES<\/h4>\n<p>Akom Chantakhun<br \/> CBC International Limited<br \/> 56\/12-13 Soi Prayasuren 45<br \/> Samwatawantok, Klongsamwa<br \/> Bangkok, 10510<br \/> Thailand<\/p>\n<p><a href=\"mailto:akom@cbcinter.co.th\" target=\"_blank\" rel=\"noopener noreferrer\">akom@cbcinter.co.th<\/a><br \/> <a href=\"http:\/\/www.cbcinter.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.cbcinter.com<\/a><br \/> <a href=\"http:\/\/www.cbcinter.co.th\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.cbcinter.co.th<br \/><\/a><strong><\/strong><strong><\/strong>Tel: 662 902 6106-9<br \/> Fax: 662 914-3009<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;3.26&#8243; _i=&#8221;4&#8243; _address=&#8221;2.1.4&#8243;][et_pb_text module_id=&#8221;customfoot&#8221; _builder_version=&#8221;3.26.6&#8243; text_text_color=&#8221;#ffffff&#8221; text_font_size=&#8221;13px&#8221; text_line_height=&#8221;1.9em&#8221; header_4_text_color=&#8221;#ffffff&#8221; header_4_font_size=&#8221;16px&#8221; header_4_line_height=&#8221;1.2em&#8221; _i=&#8221;0&#8243; _address=&#8221;2.1.4.0&#8243;]\n<h4 class=\"title\">HONG KONG, MACAU, CHINA (PRC)<\/h4>\n<p>Jane Lu<br \/>Bonning Asia Co., Ltd<br \/>Room 1604, Arion Commercial Centre<br \/>2-12 Queen\u2019s Road, West<br \/>Hong Kong<\/p>\n<p><a href=\"mailto:janelu2000@yahoo.com\" target=\"_blank\" rel=\"noopener noreferrer\">janelu2000@yahoo.com<\/a><br \/><a href=\"http:\/\/www.shjdn.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.shjdn.com<\/a><br \/>Tel: 852 2543 0186<br \/>Fax: 852 2542 2114<br \/>Mob: 852 9379 8172<\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"excerpt":{"rendered":"<p>Three-Phase Semi Converter Board The FRS300 firing\/regulator\/snubber board is specifically designed for three-phase semiconverter applications. It includes our ASIC-based firing circuit, a current and voltage regulator, and a snubber circuit integrated on a single board. This provides a complete, compact and economical package for battery chargers, welding equipment, and DC bus generation where power quality [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":208,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"<div class=\"ems_right\"><img class=\" size-full wp-image-220\" src=\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2010\/12\/FRS300_200x171.png\" alt=\"\" width=\"200\" height=\"171\" border=\"0\" \/><br \/><a href=\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2010\/12\/PD740_FRS300_Prod_Gd_07-2017.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">Product Guide<\/a><br \/><a href=\"images\/stories\/enerpro\/products\/FRS300\/ M2620_A_FRS300_Physical.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">Mechanical Drawing<\/a><\/div><p style=\"text-align: left;\">The FRS300 firing board is specifically designed for three-phase semiconverter applications. It includes our ASIC-based firing circuit, a current and voltage regulator, and a snubber circuit integrated on a single board. This provides a complete, compact and economical package for battery chargers, welding equipment, and DC bus generation where power quality is not an issue.<\/p><p><strong><br \/>KEY FEATURES<\/strong><\/p><ul><li>Economical one-board solution<\/li><li>Built-in voltage and current regulation<\/li><li>Integral snubber circuit<\/li><li>Configured for three-phase SCR\/diode semiconverters<\/li><\/ul><p>{tab=Description|grey}<\/p><p style=\"text-align: left;\">The FRS300\u00a0 includes the following features:<\/p><ul><li>Analog Delay Angle Command Signal (SIG HI): Users may choose a variety of DC control signal ranges including 0-5 V, 0-10 V, 4-20 mA, or custom ranges.<\/li><li>Soft-Start and Soft-Stop: Upon soft-start, SCR firing is enabled and the delay angle command ramps from the maximum value to the setpoint value determined by the SIG HI command signal. Upon soft-stop, the delay angle ramps from the setpoint value to the maximum value after which SCR firing is inhibited.<\/li><li>Phase Loss Inhibit: A phase loss circuit instantly inhibits SCR firing if a loss of one or more phases or gross phase imbalance is sensed on the AC line. Firing will soft-start when such a fault is cleared.<\/li><li>Instant Enable and Inhibit: A contact closure (relay, switch, transistor) instantly enables or inhibits SCR firing at the delay angle commanded by the delay angle command signal (SIG HI).<\/li><li>Regulator Circuit: The board typically operates in voltage or current regulation mode, depending upon which error signal is larger. This allows a seamless transition from voltage to current regulation or vice-versa.<\/li><li>Snubber Circuit: The snubber section consists of three RC circuits connected to the SCR anodes and cathodes.<\/li><li>High Current Picket Fence Gate Drive: The transformer-isolated gate drive circuits provide a hard firing initial 13 V open circuit\/1.3 A short circuit firing pulse followed by sustaining \"back porch\" pulses at 6 V open circuit\/0.5 A short circuit. The gate pulse burst frequency is 384 times the mains voltage frequency.<\/li><li>Analog Delay Determinator Circuit: Enerpro's gate delay determinator circuit is based on the Ainsworth three-phase PLL circuit and implemented with a proprietary ASIC. This circuit adjusts the gate delay firing angle in negative proportion to the SIG HI command. Gate drive phase balance is typically less than \u00b11\u00b0.<\/li><li>Control Power Options: The FRS300 is powered from an external 30 VDC or 24 Vac source.<\/li><li>Board Construction: All circuit boards are assembled at the Enerpro plant in Goleta, California and are manufactured by a UL-approved fabricator from 2.4 mm thick FR4 fire resistant fiberglass epoxy laminate. All boards are conformal coated (MIL-1-46058, Type UR)<\/li><\/ul><p>\u00a0<\/p><p>{tab=Specifications|dark grey}<\/p><p><img class=\" size-full wp-image-222\" src=\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2010\/12\/FRS300_Datasheet.png\" alt=\"\" width=\"600\" height=\"725\" border=\"0\" \/><\/p><p>{tab=Applications|dark grey}<\/p><ul><li>DC Bus Capacitor Chargers<\/li><li>Battery Chargers<\/li><li>Corrosion-Protecting Semi-converters<\/li><\/ul><p>{tab=Ordering Guide|dark grey}<\/p><p><img class=\" size-full wp-image-223\" src=\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2010\/12\/frs300-ordering-guide-2-14.png\" alt=\"\" width=\"600\" height=\"811\" border=\"0\" \/><\/p><p>{\/tabs}<\/p>","_et_gb_content_width":"","footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>FRS300 Three Phase Firing Boards - Enerpro-Inc Power Electronics<\/title>\n<meta name=\"description\" content=\"Three Phase Firing Boards: The FRS300 firing board is specifically designed for three-phase semiconverter applications. It includes our ASIC-based firing circuit, a current and voltage regulator...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"FRS300 Three Phase Firing Boards - Enerpro-Inc Power Electronics\" \/>\n<meta property=\"og:description\" content=\"Three Phase Firing Boards: The FRS300 firing board is specifically designed for three-phase semiconverter applications. It includes our ASIC-based firing circuit, a current and voltage regulator...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/\" \/>\n<meta property=\"og:site_name\" content=\"Enerpro-Inc Power Electronics\" \/>\n<meta property=\"article:modified_time\" content=\"2019-08-29T18:23:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/\",\"url\":\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/\",\"name\":\"FRS300 Three Phase Firing Boards - Enerpro-Inc Power Electronics\",\"isPartOf\":{\"@id\":\"https:\/\/www.enerpro-inc.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png\",\"datePublished\":\"2019-04-29T16:31:19+00:00\",\"dateModified\":\"2019-08-29T18:23:41+00:00\",\"description\":\"Three Phase Firing Boards: The FRS300 firing board is specifically designed for three-phase semiconverter applications. It includes our ASIC-based firing circuit, a current and voltage regulator...\",\"breadcrumb\":{\"@id\":\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/#primaryimage\",\"url\":\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png\",\"contentUrl\":\"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.enerpro-inc.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Firing Boards\",\"item\":\"https:\/\/www.enerpro-inc.com\/firing-boards\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Three Phase\",\"item\":\"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"FRS300\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.enerpro-inc.com\/#website\",\"url\":\"https:\/\/www.enerpro-inc.com\/\",\"name\":\"Enerpro-Inc Power Electronics\",\"description\":\"Enerpro-Inc\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.enerpro-inc.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"FRS300 Three Phase Firing Boards - Enerpro-Inc Power Electronics","description":"Three Phase Firing Boards: The FRS300 firing board is specifically designed for three-phase semiconverter applications. It includes our ASIC-based firing circuit, a current and voltage regulator...","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/","og_locale":"en_US","og_type":"article","og_title":"FRS300 Three Phase Firing Boards - Enerpro-Inc Power Electronics","og_description":"Three Phase Firing Boards: The FRS300 firing board is specifically designed for three-phase semiconverter applications. It includes our ASIC-based firing circuit, a current and voltage regulator...","og_url":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/","og_site_name":"Enerpro-Inc Power Electronics","article_modified_time":"2019-08-29T18:23:41+00:00","og_image":[{"url":"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"8 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/","url":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/","name":"FRS300 Three Phase Firing Boards - Enerpro-Inc Power Electronics","isPartOf":{"@id":"https:\/\/www.enerpro-inc.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/#primaryimage"},"image":{"@id":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/#primaryimage"},"thumbnailUrl":"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png","datePublished":"2019-04-29T16:31:19+00:00","dateModified":"2019-08-29T18:23:41+00:00","description":"Three Phase Firing Boards: The FRS300 firing board is specifically designed for three-phase semiconverter applications. It includes our ASIC-based firing circuit, a current and voltage regulator...","breadcrumb":{"@id":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/#primaryimage","url":"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png","contentUrl":"https:\/\/www.enerpro-inc.com\/wp-content\/uploads\/2019\/04\/PDF-icon22h.png"},{"@type":"BreadcrumbList","@id":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/frs300\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.enerpro-inc.com\/"},{"@type":"ListItem","position":2,"name":"Firing Boards","item":"https:\/\/www.enerpro-inc.com\/firing-boards\/"},{"@type":"ListItem","position":3,"name":"Three Phase","item":"https:\/\/www.enerpro-inc.com\/firing-boards\/three-phase\/"},{"@type":"ListItem","position":4,"name":"FRS300"}]},{"@type":"WebSite","@id":"https:\/\/www.enerpro-inc.com\/#website","url":"https:\/\/www.enerpro-inc.com\/","name":"Enerpro-Inc Power Electronics","description":"Enerpro-Inc","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.enerpro-inc.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.enerpro-inc.com\/wp-json\/wp\/v2\/pages\/29590"}],"collection":[{"href":"https:\/\/www.enerpro-inc.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.enerpro-inc.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.enerpro-inc.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.enerpro-inc.com\/wp-json\/wp\/v2\/comments?post=29590"}],"version-history":[{"count":28,"href":"https:\/\/www.enerpro-inc.com\/wp-json\/wp\/v2\/pages\/29590\/revisions"}],"predecessor-version":[{"id":132551,"href":"https:\/\/www.enerpro-inc.com\/wp-json\/wp\/v2\/pages\/29590\/revisions\/132551"}],"up":[{"embeddable":true,"href":"https:\/\/www.enerpro-inc.com\/wp-json\/wp\/v2\/pages\/208"}],"wp:attachment":[{"href":"https:\/\/www.enerpro-inc.com\/wp-json\/wp\/v2\/media?parent=29590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}