High AC & Low voltage Trip using LM339

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asimraufawan

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Hi Everyone!

I need to trip the Static Converter at low AC voltage less than 210 at output & high AC voltage greater than 235 at the output using LM339,what should be the
schematic diagram for the triping citcuit. Or any other idea for low voltage or high voltage tripping.

Thanks
 

Are you going to pay for the design/designer or you expect it for free?
 

i just want an idea i m designer my self but a beginner
 

asimraufawan said:
i just want an idea i m designer my self but a beginner
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Ok...here is the IDEA...Have 2 presets (one for Over voltage and other for low voltage) in the voltage divider networks connected to the Inverting inputs of the LM339, and give a volatge reference to the Non Inverting Pins and take respective outputs and drive relays to cut off the load. Thaz simple. Cheers.
 

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