(Topic ID: 181073)

Under performing bridge rectifier?

By beeker3000

7 years ago


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  • 14 posts
  • 5 Pinsiders participating
  • Latest reply 7 years ago by GRUMPY
  • Topic is favorited by 1 Pinsider

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#4 7 years ago
Quoted from beeker3000:

Even further upstream, the transformer feeding the bridge rectifier comes from two wires. One measures 44VAC the other 15.6VAC.

You're not measuring correctly then. AC is measured across these two wires, one lead of your DMM on each leg. Polarity won't matter.

It's likely the transformer is fine and the rectifier is going.

#7 7 years ago

Agreed with @grumpy. AC volts in divided by 0.7 aproximates theoretical DC output.

Also bridge rectifiers can give funky voltages with no load. Were you testing it with load disconnected maybe?

If nothing else you could bridge the + and - with a 10k resistor and check the voltage across that.

Other than that, does the game have a good ground?

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