GE DS200FGPAG1A DS200FGPAG1AEB Pulse Amplifier Board

This GE DS200FGPAG1A DS200FGPAG1AEB Pulse Amplifier Board amplifies low-energy firing pulses for SCR gate drive. The board receives logic-level signals and delivers high-current pulses to power semiconductors. You will find this component in many GE Mark V excitation systems. The DS200FGPAG1AEB variant includes enhanced thermal performance for high-temperature operation.

Technical Specifications

Parameter	Specification
Full Model	GE DS200FGPAG1A DS200FGPAG1AEB Pulse Amplifier Board
Category	Pulse Amplifier Board
Number of Channels	6 Independent Amplifiers
Input Logic	5V or 15V PWM (Opto-Isolated)
Output Current	2 A Peak per Channel
Output Voltage	15V to 30V Field Selectable
Pulse Width Range	30 to 200 microseconds
Isolation Voltage	2500 V RMS
Dimensions (H x W)	220 mm x 140 mm
Weight	Approximately 0.78 kg
Connectors	2 x 20-Pin Headers, 6 x Gate Outputs
Component Count	156 Discrete Components
Energy Storage	6 x 22 µF Boost Capacitors

Pulse Amplification and Isolation Features

The GE DS200FGPAG1A DS200FGPAG1AEB Pulse Amplifier Board boosts low-power firing pulses to drive SCR gates reliably. Each channel includes opto-isolation for complete electrical separation from the logic side. The board stores energy in boost capacitors for consistent pulse shape. Furthermore, it provides short circuit protection on all output channels. Consequently, your SCR gates receive clean, high-energy pulses for reliable turn-on.

Installation and Connection Steps

Mount this GE DS200FGPAG1A DS200FGPAG1AEB Pulse Amplifier Board near the SCR bridge in the exciter cabinet. First, connect the PWM input cables to the two 20-pin headers. After that, wire each gate output to the corresponding SCR gate terminal. Then, select the output voltage using the onboard jumper settings. Finally, verify each pulse waveform using an oscilloscope before enabling the exciter.

Energy Discharge and Safety Notice

This GE DS200FGPAG1A DS200FGPAG1AEB Pulse Amplifier Board stores energy in its boost capacitors. Therefore, you must wait at least one minute after power removal. The six capacitors discharge through internal bleeder resistors. Never disconnect gate wiring while the board remains powered.

Status Indication and Diagnostics

Six green LEDs show active pulse outputs for each channel clearly. A yellow LED indicates the board has valid input power and logic signals. A red LED illuminates when any channel detects an output short circuit. These indicators help technicians troubleshoot pulse amplifier issues without an oscilloscope.