Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Are you thinking of turning an audio amplifier into a power supply? Theoretically it can be done.
You can input a weak audio signal of any frequency, and get a strong signal out. You can convert it to DC with diodes.
Of course you are aware something can blow if you attach a load which is a very low ohm value.
And a caution in the other direction: An audio amp is designed to have a load of several ohms attached. If you operate it with little or no load, something can be damaged, with the likelihood being greater the higher the volume is cranked up. I unwittingly did this to my guitar amp with the speaker disconnected, and it blew a tube.
Audio amplifiers are designed for low impedance drive. The power of audio amplifier depends upon the lad connected to it, for example 100W rms power amplifier with 4Ohm can deliver 200W at 2 Ohm load.
You have to find out input impedance of the equipment before connecting to an audio amplifier. However transformer coupled amplifiers is safe.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
