555 PWM

Nov 19, 2006 3 Replies

Hello all,



I am an absolute beginner at electronics. I need a DC motor (probably a 1.5 to 9V hobby DC motor from radio shack).



I need to be able to vary its rotational speed.



By chance, I happen to have a 555 IC. I don't know how to read a schematic, is there some way I can use it to build a pulse width control circuit ?



Any other suggestions ?



Please help !



Thanks a bunch, Jj


By Googling the phrase

"555 +PWM" (no quotes), the first link that comes up is:

formatting link

This'll do the job.

Good luck Chris

"Jimmy Jam"

** Must be a beginner at using the net too.
** Ever heard of Google ??

Try " 555 pwm " in the search box.

...... Phil

By the way, JJ, this page seems to be oriented toward newbies, but it still requires a little background. Take a look at the page, and post back if there's something you don't understand.

Good luck Chris

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