Millivolt Amplifier

Hi im am currently working on a special proyect and I need to take the millivots from a microphone signal and turn them from 1-10mv to something between 100-240v. So I need an amplifier to do that but I dont know wich one or if it would be better to link multiple amplifiers. This would be used to charge a phone. This is really important mi duedate for this proyect is 12/28/2012.

 

Whoa, do you hope to use energy captured by the microphone to charge a cellphone battery? You don't need (just) an amplifier, you need an energy harvesting strategy. I'll bet the self-discharge rate of the battery exceeds the power available.

A normal "amplifier" uses a small signal to control a big power supply. It doesn't really amplify power so much as it amplifies information contained in a signal.

 

The amplifier would be used to enlarge the signal but then pass by my partners invetion that turn signals into steady electrical currents and vice versa so I just need the correct amplifier to get the 100-250v necessary because if the soundwaves enter from a mirophone they create the signal needed to turn that electrical signal into an electrical current.

 

I'll go out on a limb and say that a microphone cannot generate enough energy to charge a cell phone battery (or any battery that I am familiar with).
You really need to choose a new project while you still have time.

 

Hello Machinesoft

Take a look over here:

http://www.google.com.mx/search?hl=...urce=og&sa=N&tab=wi&ei=kbp5UPXWOua02AXV04C4CA

Most likely you find something that fits.

If I remember correctly, burr-brown, manufacture This high voltage operational amplifier’s.

regards
at your service

 

Keep in mind that an amplifier requires a power supply. How are you going to charge it?

 

Taking advantage of the trip:
The energy must come from somewhere else other than the microphone.
Of course.

 

Exactly. So what's the point in using one? (The question is directed at machinesoft.)

 

I think if it's a really good microphone, it will create enough energy to run the amplifier and still have enough left over to charge the battery.

Can't talk anymore now, I have to get back to work on my perpetual motion machine.

 

Don't bother. I just finished my time machine and saw your perpetual motion machine doesn't work.

 

You would be better off diluting water!

 

Let me borrow your time machine.... I need to go forward in time and ask the older, wiser version of myself what I did wrong.