generation -12v and +12v with common ground.

jpanhalt

Joined Jan 18, 2008
10,953
What will you be starting with? For example, will your source be DC or AC? What voltage(s) are available? How much current do you need for your + supply and - supply?
 

jpanhalt

Joined Jan 18, 2008
10,953
500 mA for a negative supply is quite a bit. The simplest methods of generating a negative voltage produce less than 100 mA, For example, the ICL7660 (switched capacitor) device only produces about 10 mA, which is adequate for many purposes.

If you really need a 500 mA negative supply, you will probably be getting into a switching supply. That is convert to AC then work from that.
 
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