i want to make an AC voltage multiplier circuit using opamps,

is it posible????

 

Originally posted by mokhoo@Jan 20 2006, 02:32 PM
i want to make an AC voltage multiplier circuit using opamps,

is it posible????

[post=13287]Quoted post[/post]​

Yes it is possible. If you are referring to multiplying two ac signals, then please read this post.

 

thx, but i mean a multiplier circuit using op amps, like summing amp, diffrentiator,.............

 

Originally posted by mokhoo@Jan 20 2006, 05:33 PM
thx, but i mean a multiplier circuit using op amps, like summing amp, diffrentiator,.............

[post=13293]Quoted post[/post]​

If you read that post carefully you'd find the approaches to design an analogue multiplier. Please refer to the paragraphs that mention the approaches using log amplifiers and amplitude modulation (with certain caveats).

In short, you could implement the multiplier with two log amplifiers, a summer and an inverse log amplifier, which could all be designed with op-amps.

 

thanx very much for this information.


but i have a silly question, does log amplifier work with AC voltage??