Re: PWM [or ANY OTHER] chip that can drive an H bridge?

Hello Jim,

One package of LM339 has 4 comparators... can do both your oscillation
AND duty cycle requirements.

But the LM339 is 10-12 cents while a 74HC14 is 6-7 cents. And it's a six-pack from which you'd only need one.


I got you beat on adjustability ;-)


Not if I am allowed to use more than one of the Schmitt inverters. Even with just one you can adjust but then it would be an adjustment of low phase and high phase, not the frequency.

Regards, Joerg

http://www.analogconsultants.com
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