12V to +/- 12V

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Prof.Insane

New Member

• Feb 19, 2004

• #1

I need to convert a 12V car battery to +/- supplies for a sinewave generator chip. The data sheet says I need 10V - 0v - 10V supplys at 20ma. I'm guessing it wouln't mind 12V but I'm not sure.

The chip I'm using is ICL8038CCPD "Waveform generator".

Any ideas how to do this ?


Thanks,

-Chris

 

Styx

Active Member

• Feb 19, 2004

• #2

DCDC converter

check out Newport or TRACO very good

 

k7elp60

Active Member

• Feb 19, 2004

• #3

Voltage invertor

YOu can use a voltage pump such as a LT1054CN8, made by Linear Technology. If you need a schematic let me know and I can post one for you. When I need them I buy them from Digikey.

 

T

tavib

Member

• Feb 20, 2004

• #4

One way to do this conversion is figured follow.
I use this one for an audio car amplifier and has working fine.

 

Attachments

• v2-pump.GIF

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Styx

Active Member

• Feb 20, 2004

• #5

that is a charge pump cct and you can get the IC

 

P

Prof.Insane

New Member

• Feb 20, 2004

• #6

Thanks

Hey thanks. I'm going to try one of those voltage pumps.

Thanks again!