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Old 12th March 2009, 05:38 PM   #1
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Default Confused about transformers

I have a toroidal transformer with dual (30v) secondaries for my power supply (Hammond 182P30) I'll be using a single bridge rectifier into four large caps. I'm thinking the "hot" side of each secondary wires to the rectifier, and the neutral wires connect to the ground plate between the caps. Is this correct?
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Old 12th March 2009, 05:44 PM   #2
DougL is offline DougL  United States
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A drawing would be priceless in this instance.

The answer as it stands is "I think so, but I am not sure"

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Old 12th March 2009, 06:07 PM   #3
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According to hammond documentation

blue & gray link and used as center tap

red to rectifier

yellow to opposite side of rectifier
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Old 12th March 2009, 06:08 PM   #4
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Default Re: Confused about transformers

Quote:
Originally posted by billybob66
I'm thinking the "hot" side of each secondary wires to the rectifier, and the neutral wires connect to the ground plate between the caps.
There is no such thing as a neutral secondary, unless you've done something wrong like wired one of the secondary's leads back to the mains neutral.
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Old 12th March 2009, 06:13 PM   #5
AndrewT is offline AndrewT  Scotland
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post3 shows the tapping to ground between the caps and the centre tap.
No, take the tapping from the junction of the caps to the main audio ground.

The current passing along the centre tap to the caps is in short duration high current spikes. Don't let this contaminate your main audio ground.
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Old 12th March 2009, 06:18 PM   #6
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The post was only to give correct color and phase for transformer not layout or ground loops.
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Old 12th March 2009, 06:54 PM   #7
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Quote:
Originally posted by audiofan
The post was only to give correct color and phase for transformer not layout or ground loops.
I agree. AFAIK schematics were never intended to convey layout instructions.
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Old 12th March 2009, 10:01 PM   #8
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Thanks for the info, Audiofan....I hate to be guessing when it comes to this stuff!
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Old 21st March 2009, 01:29 PM   #9
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