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Anand:
There are two principles at work. One is, when the power is switched off, the collapse of the electromagnetic field induces a current, and therefore a voltage, in the coil of the motor. This manifests as a negative voltage on the contacts (i.e., the previously negative contact becomes...
Help with an electronic brake for a DC motor
I have a small 12VDC motor (250 mA max.) that I'd like to add an electronic brake to. I control the motor (on/off) from a micro driving a mosfet on the motor's low side (see Brake.jpg for schematic). To brake the motor, I'd like to short the...
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