1200V High-Current Half-Bridge using FAN73912

The project presented here is designed for high-voltage and high-speed driving for MOSFETS and IGBTs that operate up to +1200V. The project consists of a FAN73912 gate driver chip and 2 x IGBTs, DC bus capacitors, current sense resistor for current feedback etc. The advanced input filter of H_IN provides protection against short-pulsed input signals caused by noise. An advanced level-shift circuit offers high-side gate driver operation up to V_S=-9.8 V (typical) for V_BS=15 V. The UVLO circuit prevents malfunction when V_CC and V_BS are lower than the specified threshold voltage. R8 is the current sense resistor.

1200V High-Current Half-Bridge using FAN73912 – [Link]

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