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Klaus, a bit more details: the H-bridge is a MP6513. The DC motors each draw less than 150 mA (I don't know the exact type, but they are vacuum-rated with 485 gear ratio so they are quite-nice and run very smoothly). The PWM signal is low frequency, anywhere from 24 Hz to 1500 Hz, and its input...
I have run into a peculiar problem. I designed a board to include some 12 V H-bridge circuits for bidirectional control of DC motors and speed with PWM. So far so good. But some of the motors I am to drive have a common terminal. There are many many motors (hundreds perhaps) so rewiring the...
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