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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

you don't need two bridges for a split power supply

Here is an example of a split (+/-) DC power supply. Notice that only one full wave bridge rectifier is being used. D2, D3, D5 and D7 are the birdge. D1, D4, D6, D8 are there to protect the voltage regulators (look at any 78xx series data sheet for why).


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