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Hi
at 1st you need to convert the signal to Pulse by VCO,then use an OPTO coupler,and again convert the OPTO coupler OUTPUT pulse to voltage.
THere is many prefab circuit for this purpose.
Look-up LOC110 made by Clare. It will need feedback amplifiers. The datasheet for the chip has good application circuits. Keep in mind that most linear optocouplers have a limited bandwidth. I have not seen a linear optocoupler with BW > 200kHz. What kind of signal do you want to isolate? What's you application, if it's not a secret?
hi friends
i'm going to use voltage isolator(actually signal isolator ) for sensing output voltage and current in smps circuits that have different ground .
i'm using pic mcu as controller and i want to isolate input analog signals.
best regards .
Hi, you don't have to do it yourself.
Sunyuan ISO A(U)-P-O or ISO 4-20mA series will do. They have been making this part for years and you can count on them. Small, precise and inexpensive.
dear sunyuan
above link is dead
r u sure the link typed correctly?
regards
sunyuan said:
Hi, you don't have to do it yourself.
Sunyuan ISO A(U)-P-O or ISO 4-20mA series will do. They have been making this part for years and you can count on them. Small, precise and inexpensive.
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