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Electronics Forum / CAD / January 2006



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How can we make  -ve Power Supply

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Nitin - 24 Jan 2006 06:43 GMT
Hello Friends
This is Nitin Dhaneshwar,Asking  all of you how can we make -ve power
supply
In this power supply the load is 5 & 12 volt .Can we make both -ve &
+ve
power supply.
I wanna make +5,-5,+12,-12 power supply in single goard
Is it possible?
Ken Smith - 24 Jan 2006 08:45 GMT
>Hello Friends
>This is Nitin Dhaneshwar,Asking  all of you how can we make -ve power
[quoted text clipped - 4 lines]
>I wanna make +5,-5,+12,-12 power supply in single goard
>Is it possible?

If the load is light:

Start by making a +15 and -15V supplies.

Use LM7812 and LM7912

Use LM7805 and LM7905

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