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I appreciate you replying, and I agree the voltage ratings are wrong. But I fail to see how you arrive at 21, 213 volts being the value of a half rectified sine wave. Yes, the peak voltage of the AC wave is 1.1414 x RMS, but my understanding is the half rectified DC RMS is
'Vrms = Vpeak/2'...
By 21 ,213 volts, are you referring to the peak inverse voltage? I thought the rectified voltage of half wave would be about 45% of the AC RMS. Volts dc= voltage peak/pi which is about 6750 volts. I could be wrong though. After you pointing that out, I think you are probably right about...
Hi, I was wondering if anyone could check my design for the h/w rectifier for this negative ion generator. (Maths is not my strong point.) I know it could be much simpler, like one diode, but I can't find parts of appropriate values or at realistic prices, so it's designed around what I can...
Thanks Andy. There was one odd phenomenon that (also) confuses me. When the power supply is grounded to true earth it is much more apparent, I can't tell if it is from an excess load on the power supply or what it is. It also happened when it wasn't grounded, but to a much smaller degree and...
I tried to do a reply with quotes, it seems it needs moderating. But you were right, grounding the positive to true ground (plumbing) got it going perfectly. Thanks so much for your help.
(P.S Now I've done that I can see why I needed to do it, which is the somewhat obvious bit I was talking...
Thanks. Yeah, it wasn't the ideal set up. I was just playing about with what I had. I was using the power supply (which isn't my design) for digital Kirlian/corona discharge photography, just thought I'd play about with ionised air.
The half wave with capacitors seemed like a better idea...
Heh heh, yeah that's the glaringly obvious bit I got stuck on. I just didn't know where to put it, or what to do with it. The anode puts out a nice breeze with the cathode ignored, but it seems inefficient to leave it like that. I'm looking for a 'what' to do with it and a 'why' if possible...
Hi all, I don't use forums much so excuse me if I'm clumsy. I'm fairly new to electronics, and it seems I get the theory and physics much better then the practical application. I have an approximate 15KV flyback based power supply that is extremely low current that I wanted to use as an...
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