Vary Duty Cycle

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Thread Starter

Andrea

I am trying to use a 555 timer to vary the duty cycle at a preset frequency...any suggestions?
 
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Curt Wuollet

Get a dual, I believe it's a 556. use one astable to set the frequency and the other as a monostable (one shot). There are trick circuits for pwm but, the dual will be more stable and allows individual adjustment.

Regards

cww
 
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