Motor controller old school

295

04:29:35

Old school motor controller using npn and potentiometer instead of a potentiometer and a 555 timer as a pwm (pulse width modulator). Light represents the motor. 

published 9 years ago

BillyT

9 years ago

You are almost there checkout this circuit http://everycircuit.com/circuit/5250586334724096

TheKuli

9 years ago

It is named "Pulse Width Modulation"

WTFCircuit

9 years ago

@TheKuli: pulse width modulation is a very different thing

justinmh

9 years ago

Yes, width, not wave. Thanks, I've forgotten more about electronics than I'd like to admit. And thanks BillyT, you're right, like I said, I've clearly forgotten a few things.

hurz

9 years ago

@justinmh, follow the animated bubbles on the wires and see were they go. For a bipolar transistor most current is passing emitter to collector. But this is in your setup not possibile, cuz the collector resistor is much to high. Hope i refreshed a little 😋

justinmh

9 years ago

Thanks @hurz, @billyt already addressed this, I just haven't changed this yet. I need to though.

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