Overview: APPLIED POWER SYSTEMS, INC. BAP1491 IGBT Gate Drive Board BAP1491 IGBT Gate Drive Board for Three Phase and Full Bridge Inverters Complete IGBT Gate Drive Board with the following feature: Current sensing and heatsink temperature sensing capability Over voltage protection Includes all power supplies DC link voltage sensing Over current protection Single 26 pin header for all I/O and input power Under voltage lock-out Diagnostic LEDs Automatic dead time generation Shoot through protection Introduction The BAP1491 Insulated Gate Bipolar Transistor (IGBT) Gate Drive Board (GDB) discussed in this Datasheet/Application Note provides a safe, reliable, isolated interface between control logic and an IGBT based power stage. With minimal development time and cost, an effective inverter can be designed and built using the techniques described below. Typically, the most unreliable portion of an inverter design is the power stage. In most if not all cases, this is due to inadequate control of the power semiconductors.
