Thread: Peak voltage
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Old 12th Feb 2019, 12:52 pm   #1
John10b
Nonode
 
Join Date: Nov 2016
Location: Aberaeron, Ceredigion, Wales, UK.
Posts: 2,887
Default Peak voltage

I should not have to ask this question, but if you don’t ask...!
Firstly my understanding is that with a half wave rectifier and capacitor the output voltage is almost RMS x ✔️2.
My readings using my basic digital meter is:
Output from secondary of Mains transformers is 226vac.
Output from rectifier with capacitor 210vdc @ 40mA.
So here is the question, why don’t I get a reading of about Peak which is about 326vdc?
This is the actual readings from a basic working audio amp using an EL84.
The rectifier is an IN5408 with a 32μF capacitor.

Cheers
John
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