High Current H-Bridge with MOSFET

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High Current H-Bridge with MOSFET circuit diagram>

One important feature of MOSFET transistors is that they contain an intrinsic (unavoidable, built-in) diode between their drain and source. This diode acts as a catch diode in an H-bridge configuration, and most MOSFET datasheets specify the parameters of this diode. It is thus possible to use this built-in diode of the transistors and not provide external ones if the specification of this diode meet the design requirements. For bipolar transistors there’s no such intrinsic diode so external diodes always have to be provided.

For more explanation, check up this explanation

And here the sample h-bridge schematic diagram with MOSFET:
High Current H-Bridge with MOSFET schematic diagram

High Current H-Bridge with MOSFET circuit diagram

Note: Use the schematic on your own risk.

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2 thoughts on “High Current H-Bridge with MOSFET

  1. yo necesito un variador de velocidad para un motor de CC, de 24 VDC. 8 kilowatios, tipo serie , escobillas. No he encontrado mosfets, que me soporten corrientes mayores a 100 amps. para colocarlos en paralelo, para sumar corriente, o un puente H para 300 amperios. De antemano les agradesco la información que puedan suministrarme. Atte.: DARÍO BURITICÁ. M.

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