This is cycle control. Works well for applications other than bulbs and motor
load. You get flicker with bulbs and motor jerks with cycle control.

Pailoor

Rich Graziano wrote:

> What if you counted the zero crossings and held your triac on for a given
> number of crossings and off for a given number of crossings?  Would this
> give you a ratio of power on to power off?  Would it be kind of a PWM? Would
> a scheme like this work?
> Richard

--
Website : http://business.vsnl.com/chiptech


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