Isolated Gate Drive Circuit for 3-Phase Inverter

In recent years, 3-phase inverters in industrial equipment have become important to achieving a low-carbon society. This is the gate drive circuit with various protection functions which can safely drive the power module used for the 3-phase inverter.
Design tips on each portion of the circuit, method of operation, and design information such as circuit diagrams and PCB patterns are available, please use them for your design.

This is a picture of Isolated Gate Drive Circuit for 3-Phase Inverter.
Board Appearance
SSM3K15AFS SSM3K15AFS SSM3K15AFS SSM3K15AFS TLP5222 TLP5222 TLP5222 TLP5222

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Features

  • Developed an isolated gate driver equipped with various protection functions for 3-Phase Inverter
  • Realized as gate drive for 7-in-1 power module

Description

Power supply voltage for control DC24V
Number of driving channels 7 ch：U-phase (Low-side,High-side), V-phase (Low-side,High-side), W-phase (Low-side,High-side), BR circuit
Gate control signal input 5V CMOS
Gate drive output +16V (Typ.) / -8V (Typ.)

Design Documents

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Design Data

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Used Toshiba Items

Part Number Device Category Portion Usage Description
Photocoupler (photo-IC output) Smart Gate Driver Coupler・7 Photocoupler (photo-IC output), IGBT/MOSFET Gate driver, IOP=+/-2.5 A, 5000 Vrms, SO16L
Small-signal MOSFET Input signal drive・7 N-ch MOSFET, 30 V, 0.1 A, 3.6 Ω@4V, SOT-416(SSM)

Related Documents

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