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Re: (ET) pwm
On 15 Jun 2005 at 16:53, neil wrote:
> Just did a "google" on "pulse width modulator", all kinds of hits. Many
> years ago, my son and I built a model railroad speed control using a PWN
> circuit, at that time we had to use discrete components, now I think
> there
> are IC's to do the timing, I'd use power FETS for the switches (I think),
> rather than transistors.
For a simple circuit (the hard stuff is buried in the HIP4081 chip), try
the OSMC (open source motor controller) project at:
http://www.robot-power.com/downloads/
Ken Muldrew.