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Re: homemade speed controlllers (for school project)
I wanted to try some experiments with small motors and a processor
producing PWM signals. I found a nice H bridge circuit at Digi-Key,
the LMD18200 from National. You feed it a pwm signal and power
for up to 3A at 12-55 volts. Of course you need a heat sink and some
filter caps at those levels.
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Don Reid
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