Need help with electronics

Author Topic: Need help with electronics (Read 2271 times)

forest	Need help with electronics « on: 2011-08-28, 14:21:05 »
Sr. Member Posts: 462	Hi I need advice from electronic guru. I have done symmetrical powerr supply for my sinewave generator needed to test TPU kind device. I dislike however the idea of stepping down from 230V from power grid to -15V 0V +15V. Is that possible to get the voltages from single power supply for example -6V 0V +6V from single car battery ?

poynt99	Re: Need help with electronics « Reply #1 on: 2011-08-28, 14:40:04 »
Group: Administrator Hero Member Posts: 3217 It's not as complicated as it may seem...	You can use the trick of creating an "artificial ground" at the +6V level, then run your circuit on pseudo +/- 6V. Keep in mind that you are reducing the supply voltage quite a bit, and some of your IC's may not function properly. Here are some examples of how to achieve the pseudo ground. http://forum.allaboutcircuits.com/showthread.php?p=84026 .99 --------------------------- "Some scientists claim that hydrogen, because it is so plentiful, is the basic building block of the universe. I dispute that. I say there is more stupidity than hydrogen, and that is the basic building block of the universe." Frank Zappa

Peterae	Re: Need help with electronics « Reply #2 on: 2011-08-28, 14:42:06 »
Group: Administrator Hero Member Posts: 3876	LOL i was a bit slower Virtual ground is what you need http://tangentsoft.net/elec/vgrounds.html