Product Guide
Mechanical Drawing

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.

KEY FEATURES

• Economical one-board solution
• Built-in voltage and current regulation
• Integral snubber circuit
• Configured for three-phase SCR/diode semiconverters

Product Guide
Operating Manual
Mechanical Drawing

The FCOG6100 provides economical and reliable phase-angle control of SCR AC controllers and DC converters operated from three-phase mains. The board features six isolated gate drives, independently configurable soft start/soft stop control inputs, and an analog delay angle command input configurable for a variety of common voltage or current ranges. A variety of current and voltage regulator boards are available in addition to auxiliary firing boards for remote or parallel SCR arrangements.

KEY FEATURES

• Industry Standard ASIC-Based Design
• Fully Connectorized
• Independently Configurable Soft-Start and Soft-Stop
• Isolated Gate Drive Circuitry
• Phase Loss and Power-On Reset Protection

Product Guide
Operating Manual
Mechanical Drawing

The FCOG61BP firing board is based on the FCOG6100 three-phase, six-SCR firing board. It features an additional set of six gate outputs and a polarity transition circuit, allowing users to easily realize four-quadrant rectifier and series-reversing AC controller circuit topologies.

KEY FEATURES

• Industry Standard Digital LSI-Based Design
• Fully Connectorized
• Soft-Start and Soft-Stop Circuitry
• Multiple Configurations Avaliable
• Polarity transition command with configurable dead time
• Designed for Panel Mounting
• Complete SCR Assemblies Available

Product Guide
Mechanical Drawing

The FCOG61HV firing board combines the circuitry of the FCOG6100 firing board with high voltage tolerant, high output gate pulse transformers and increased creepage distances. This provides enhanced isolation for AC line voltages to 900 Vac and enhanced gate trigger current for large area devices.

KEY FEATURES

• Insensitive to phase sequence and mains voltage distortion
• High gate isolation
• Soft and instant start/stop functions
• Phase loss inhibit
• 50/60 Hz operation

Product Guide
Operating Manual
Mechanical Drawing

The FCOVF6100 variable frequency firing board provides the functionality of the industry-standard FCOG6100 firing board for applications with variable-frequency AC mains. An onboard frequency compensation scheme makes the firing circuit less sensitive to line frequency variations while an isolated DC-DC converter provides enhanced control power flexibility. The FCOVF6100 is offered in a standard 30-140 Hz frequency of operation range and customer-specific ranges to 600Hz.

KEY FEATURES

• Industry Standard ASIC-Based Design
• Variable frequency range of operation: 30-140 Hz (nominal) (others available)
• Fully Connectorized
• Independently Configurable Soft-Start and Soft-Stop
• Isolated Gate Drive Circuitry
• Phase Loss Protection 10:1 Supply Voltage Frequency
• Optional DC/DC Converter for Board Power