IS200GDDDG1C - Gate Driver and Dynamic Discharge Board

SPECIFICATIONS:

Part Number: IS200GDDDG1C
Manufacturer: General Electric
Series: EX2000
Product Type: Gate Driver and Dynamic Discharge Board
Number of channels: 12
Input span: 4-20 mA
Technology: Surface Mount
Common Mode Voltage Range: ±5 V
Maximum Lead Resistance: 15Ω
Analog output current: 0-20 mA
Operating temperature: -30 to 65 °C
Size: 8.26 cm high x 4.19 cm
Repair: 3-7 Day
Availability: In Stock
Country of Origin: United States
Manual: GEI-100240

FUNCTIONAL DESCRIPTION:

IS200GDDDG1C is a Gate Driver and Dynamic Discharge Board manufactured and designed by General Electric as part of the EX2000 Series used in GE Excitation Control Systems. The interface isolation between the IGBTs and the primary processor firing circuits of the EX2000 PWM-based exciter is provided by the IS200GDDD Gate Driver and Dynamic Discharge board. The GDDD board and the gating circuits for the A-leg and B-leg active IGBTs both use dynamic discharge circuit control. The EX2000 PWM's instrumentation is also provided by the board. The GDDD board processes the output dc voltage, DC-link voltage, shunt current mv input, and heat sink thermistor input before sending them to the LDCC processors for the regulators to use. Three jumpers, JP1–JP3, on the GDDD board are used to configure the following components:

• JP1: The dc output voltage input level for the GDDD board's inputs APL- 6 and BPL-5 is set by a jumper. It has to be consistent with the value in EE.612 (VDCMAX).
• JP2: The dc link voltage input level to the GDDD board inputs CPL-12 and CPL-2 is configured by a jumper. It has to concur with the value in EE (VDCMAX).
• JP3: The CPL-12 and CPLCOM inputs of the GDDD board's dc dynamic discharge reference are configured via a jumper. In other words, for EE.612 = 604, JP.3 = 500, and EE.612 = 360, JP.3 = 300, it should be equivalent to the level in EE.612(VDCMAX).

The interface separation between the IGBTs and the main processor firing circuits is provided by the Gate Driver and Dynamic Discharge board (GDDD). Both the gating circuits for the A and B leg active IGBTs and the GDDD board employ dynamic discharge circuit control. This board also offers the regulator's instrumentation. The LDCC processors receive the output dc voltage, dc-link voltage, shunt current mV input, and the heat sink thermistor input after being processed on the GDDD board for use by the regulators.

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FREQUENTLY ASKED QUESTIONS

Why is a Gate Driver necessary?

Gate Drivers are necessary to provide the appropriate voltage and current to the gate of power switches, ensuring that they turn on and off quickly and efficiently. This is crucial for high-speed switching applications to minimize losses and heat.

What are the types of Gate Drivers?

The main types include low-side drivers, high-side drivers, half-bridge drivers, and isolated gate drivers. The choice depends on the specific application and configuration of the power switch.

How does a Gate Driver improve system efficiency?

By ensuring fast and precise switching of power devices, Gate Drivers reduce switching losses and electromagnetic interference (EMI), leading to better overall system efficiency.