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.
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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.)

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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)

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Applications

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