EveryCircuit
Contact
Reviews
Home
GinkoBalboa
modified 9 months ago

Power supply with negative rail

1
7
93
02:11:32
This is a solution for power supply where there is a need of a negative rail (suitable for powering op-amps). The negative supply can't give much current, but is sufficient for voltage levels to have the op-amp swing in full voltage range
published 10 months ago
kaivanveldhoven
10 months ago
I wouldn't wanna power my op amps with this :O
GinkoBalboa
10 months ago
You don't have to. I have this circuit in my bench power supply, it has been working for 5 years by now.
GinkoBalboa
10 months ago
Can you tell me why you wouldn't power your op-amps with this?
rich11292000
10 months ago
Because it can't 'half H' http://everycircuit.com/circuit/6215208917270528
GinkoBalboa
10 months ago
Half H? In a DC application it is only needed to swing from 0 to VCC that is your Half H or whatever.
thebugger
10 months ago
Actually ginko is right. Every op amp can work with single rail DC, as long as it's biased correctly. I've actually been using voltage doubling for a while to power up my tube projects. I had a transformer which had insufficient voltage at the output to power my tubes, so I just used a voltage doubler to multiply the voltage. It worked perfectly. Yes it draws twice the current, but since tubes are a high impedance devices, there should be no problem for the doubler to handle such currents
GinkoBalboa
10 months ago
Thanks thebugger for the support

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in Chrome browser and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.

Copyright © 2017 by MuseMaze, Inc.     Terms of use     Privacy policy