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Thread: Possibility of using the PWM output as a proportional DC output??
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face BY : Craig Lee email (remove spam text)



I am attempting to use the PWM output on a '73A through a
capacitor to ground to get a proportional DC voltage out.

The PWM frequency is 3090 Hz and the duty cycle is varied.

However, I get too much ripple on the DC output.

Any brilliant ideas?  Is my frequency too low? Too high? How
do I select the proper capacitor? Do I need a diode?

Craig

<000601bded8b$168390c0$0300a8c0@craiglee.telusplanet.net> 7bit

See also: www.piclist.com/techref/io/pwm/index.htm?key=pwm
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