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zero cross detector that produce 0V to 5V output

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newton brawn

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voltage detector

Hi everyone !

Im looking for a zero voltage detector, a circuit that make a pulse every time that the line voltage (230V, 60Hz) cross the zero voltage.

It will be used to fire a thiristor or a IGBT.

Any suggestion ??

Regards
 

zero volt detector

u have ready made packages that do what you want..........

else you do with opto coupler and PIC say,
 

Re: Zero voltage detector

Do you mind to send the circuit diagram, and give more eetails ?
Thanks
Newton

Added after 1 minutes:

cameo_2007 said:

sorry, please explain
Thanks
Newton
 

Re: Zero voltage detector

You can use comparator with zero referance on non inv pin & feed your rectified AC on the inv pin(With proper attenuation) to get ZC pulses on the output.
 

Zero voltage detector

To be a zero reference comparator the input will have to have pmos devices, correct?

What is ZC pulses?
 

Re: Zero voltage detector

Hi

See microchip site for X10 application note - you will find there A zero crossing detector as a part of X10 application

All the best

Bobi

The microcontroller specialist
 

Re: Zero voltage detector

I love this circuit:
**broken link removed**

//a
 

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