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argonrepublic 3rd February 2013 08:57 PM

Pseudo ground
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I vaguely remember a power supply I used a few years ago for +/-15V. I am trying to get some power today and the closest transformer I have, has no center tap.
Here is a picture of the power board but I am contemplating leaving this out of the system until I am able to locate a suitable transformers. I have plenty of rectifiers, capacitors, regulators etc. I need +/-15 VDC and 5 VDC. I have a transfor that has 35VAC and 7.5VAC

metalsculptor 4th February 2013 06:08 AM

Depends on the load If the DC ground current is minimal the a voltage divider between the rails and a bypass capacitor will work

gootee 4th February 2013 06:42 AM

There is a power rail-splitter circuit in the LM675 datasheet.

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