BG2E–Universal Gate Drive Prototype Board. BG2E is a fully isolated two channel gate drive circuit designed for use with dual NX-L series IGBT modules, designed to sit directly on top of a dual NX-L series IGBT module, allowing a simple mounting process. The BG2E utilizes Powerex VLA500-01 hybrid gate drivers to provide efficient switching of NX-L modules rated up to 1000A. The hybrid gate drivers also provide protection against unexpected short circuit conditions using desaturation detection. The VLA500-01 hybrid gate driver has 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 BG2E provides an isolated fault feedback signal if a short circuit condition is detected.
