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Reverse polarity detector

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flote21

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Hello guys!

I am wondering about how to build an analog circuit to accomplish these two tasks:

1) Convert automatically input negative voltages into positive voltages
2) Not apply any kind of reverse polarity conversion when positive input voltages are incoming.

Any idea?

Greetings!
 

Asking about power supply or signal? Voltage, current, acceptable voltage error?
 

FvM said:
Asking about power supply or signal? Voltage, current, acceptable voltage error?
Click to expand...
Not power supply, it is an analog voltage given by a voltage transducer sensor: LEM.

Thanks,
 

O.K., you are asking about an absolute value or "precision full-wave rectifier" circuit. Many references on the internet.
 

FvM said:
O.K., you are asking about an absolute value or "precision full-wave rectifier" circuit. Many references on the internet.
Click to expand...
It is an absolute value...
 

But how to search those references on internet? Any keyword to Google it? Thanks in advance
 

Hi,

flote21 said:
But how to search those references on internet? Any keyword to Google it? Thanks in advance
Click to expand...

absolute value or "precision full-wave rectifier"

This is from **broken link removed**.

ab val pol det.JPG
 

Fantastic!!!that's exactly what I am looking for. Thanks a lot
 

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