Damian Mitchell
- Jun 5, 2014
- 11
- Joined
- Jun 5, 2014
- Messages
- 11
Hi...
I've built one of these http://www.diyaudio.com/forums/solid-state/234665-virtual-ground-regulated-rail-splitter.html (Second Schematic on the page)...
To Power one of these:- http://www.ebay.co.uk/itm/291399023398?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT (Needs +12, -12, +5)
So I've put it together (with a 78L05 on the positive rail), and a 2.4v Zener in place of the voltage reference - as I don't have the correct part here...
I'm using a 24V/0.7A Switched mode "wall wart" to supply the circuit.
The circuit works OK, but with no load connected it is drawing 300mA, and the LM317/LM337 chips are getting hot.
The Zener has just under 2.1V across it, which I guess may be the problem?
Has anyone got any ideas?
I've built one of these http://www.diyaudio.com/forums/solid-state/234665-virtual-ground-regulated-rail-splitter.html (Second Schematic on the page)...
To Power one of these:- http://www.ebay.co.uk/itm/291399023398?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT (Needs +12, -12, +5)
So I've put it together (with a 78L05 on the positive rail), and a 2.4v Zener in place of the voltage reference - as I don't have the correct part here...
I'm using a 24V/0.7A Switched mode "wall wart" to supply the circuit.
The circuit works OK, but with no load connected it is drawing 300mA, and the LM317/LM337 chips are getting hot.
The Zener has just under 2.1V across it, which I guess may be the problem?
Has anyone got any ideas?