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#1
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I just put 120vac into my torodial. got 45 vac out of it put that onto rectifier, got 40Vdc out of rectifier?? Does this seem right? I thought this was the math to ball park the output of the rectifier. 45vac out of torodial x 1.414 = 63.63 volts dc from rectifier? can someone explain this to me please.
__________________ menomana |
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#2
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| The 1.414 multilplier only applies to a capacitive smoothed supply, in other words if you are measuring just AC ripple after the bridge, you are now measuring the RMS of a 120Hz ripple, put an electrolytic cap on the bridge output and you will now read the peak, which is RMS x 1.414 less voltage drop for the rectifiers. Al
__________________ CNC, Mechatronics Integration and Machine Design. “Logic will get you from A to B. Imagination will take you everywhere.” Albert E. |
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#4
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| Your DC should read approx (45x1.414)-2 . The -2 is to allow volt drop for the two diodes. Al
__________________ CNC, Mechatronics Integration and Machine Design. “Logic will get you from A to B. Imagination will take you everywhere.” Albert E. |
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