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The GE DS200GGDAG1A DS200GGDAG1AHE GTO Gate Driver Board provides firing pulses for Gate Turn-Off thyristors. This board translates low-voltage logic signals into high-current gate drive pulses. You will find it controlling large GTOs in medium voltage drive inverters. It ensures proper turn-on and turn-off of these high-power switching devices.
Core Technical Specifications
The GE DS200GGDAG1A DS200GGDAG1AHE GTO Gate Driver Board measures 25.0 cm in width and 18.0 cm in height. Its board depth equals 3.5 cm including transformer and heatsink heights. The total assembly weighs approximately 0.55 kilograms. Six independent gate driver channels occupy the board’s surface area. Each channel generates both positive and negative gate voltage pulses.
| Parameter | Specification |
|---|---|
| Number of Driver Channels | 6 Independent Channels |
| Positive Gate Voltage | +15 VDC (Turn-On Pulse) |
| Negative Gate Voltage | -10 VDC (Turn-Off Hold) |
| Peak Gate Current | 25 A per Channel (Pulse) |
| GTO Voltage Rating | Up to 1200 VDC |
| Input Signal | Fiber Optic (HFBR-2412 Receiver) |
| Auxiliary Power | 24 VDC ±10%, 1.2 A Maximum |
| Dimensions (W x H x D) | 25.0 cm x 18.0 cm x 3.5 cm |
| Weight | 0.55 kg (approx) |
Connectors and Signal Interfaces
The GE DS200GGDAG1A DS200GGDAG1AHE GTO Gate Driver Board uses six fiber optic receivers for input isolation. Each receiver accepts TTL-level light pulses from the main controller. Six 2-pin headers provide gate and cathode connections to individual GTO modules. A 9-pin D-sub connector carries status feedback signals back to the controller. Additionally, the board includes one 4-pin header for auxiliary 24 VDC power input.
Protection and Monitoring Features
This gate driver board includes desaturation detection on every output channel. The board shuts down the gate drive immediately during a short circuit condition. Moreover, the GE DS200GGDAG1A DS200GGDAG1AHE GTO Gate Driver Board integrates undervoltage lockout protection. This feature prevents GTO operation with insufficient gate voltage. Six red LEDs illuminate when any channel detects a desaturation fault. A green LED confirms proper auxiliary power input voltage.
Energy Storage and Thermal Management
This driver board contains electrolytic capacitors on the DC-DC converter stages. These capacitors store approximately 3 joules of energy at full charge. Therefore, the board retains some energy after power removal. The GE DS200GGDAG1A DS200GGDAG1AHE GTO Gate Driver Board requires forced-air cooling for continuous operation. Wait 2 minutes after power removal before handling the board. Do not disconnect fiber optic cables while power is active. Replace the board if any capacitor shows bulging or leakage.