ICs Protect IGBTs and Sense Currents in Motor Drives

by David Tam, Vice President, Consumer Industrial Business Unit, International Rectifier, El Segundo, Calif., Power Electronics Technology, Apr 01 2005

Focus:
Newly developed high-voltage ICs can provide low-cost protection for IGBTs and "sensorless" current-sensing in industrial and appliance motor drives.

What you’ll learn:

• How to protect IGBTs and sense motor currents in inverter drives (overview)
• How to understand operation of a high-voltage (600 V to 1200 V) IC that integrates 2-phase IGBT gate drive with IGBT protection and motor-current sensing circuits

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