H-Bridge Motor Driver using MOSFETs and Transistors


Posted on Feb 6, 2014

In this post, we shall be covering on how to construct a H-Bridge Motor Driver circuit using simple MOSFET`s and Transistors. The main feature of this H-Bridge is that the motor can be driven in both directions. AnH-bridgeis a circuitthat allows a voltage to be applied across any load, like a motor in our experiment, in dual directions. The `H` h


H-Bridge Motor Driver using MOSFETs and Transistors
Click here to download the full size of the above Circuit.

ere just represents the formation of the circuit and has no reference to anyone. The H-bridge arrangement is generally used to reverse the polarity of the motor and to let the motor `free run` to a stop, as the motor is effectively disconnected from the circuit. The following table summarizes operation, with S1-S4 corresponding to the diagram above.




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