Application

NOTES:

1

BG2A

– Universal Gate Drive Prototype Board

Description: BG2A is a fully isolated two channel gate drive circuit designed for use with dual IGBT modules.

The BG2A utilizes Powerex VLA500-01 or VLA502-01 hybrid gate drivers to provide efficient switching of

modules rated up to 1400A. The hybrid gate drivers also provide protection against unexpected short circuit

conditions using desaturation detection. The VLA500-01 and VLA502-01 hybrid gate drivers have an integrated

DC to DC converter with 2500VRMS isolation to provide isolated gate drive power. Control signals are isolated

using high speed opto couplers with 15kV/µs common mode noise immunity. The BG2A provides an isolated

fault feedback signal if a short circuit condition is detected.

Features:

Ordering Information: BG2A-NF is a kit that includes a bare PCB with two VLA500-01 gate drivers

(For use with NF, A and S-Series IGBT modules)

BG2A-NFH is a kit that includes a bare PCB with two VLA502-01 gate drivers

(For use with NFH-Series IGBT modules)

BG2A-K is a kit that includes a bare PCB with two VLA500K-01R gate drivers

(For use with 1700V IGBT modules)

Circuit Explanation: The BG2A is a basic two channel gate driver designed around the recommended

application circuit for the Powerex VLA500 series hybrid gate drivers. A functional block diagram of the VLA500

Applications:

BG2A is designed for use with all Powerex NF,

A, S and NFH series IGBT modules.



Use VLA500-01 hybrid gate drivers for

Powerex NF, A and S-Series IGBT

modules



Use VLA502-01 hybrid gate drivers for

Powerex NFH Series IGBT modules



Use VLA500K-01R hybrid gate drivers for

Powerex 1700V Series IGBT modules

Fourth Release: July 31, 2012

*Refer to ordering information for

included components.