Here it is:
http://sjostromaudio.com/hifi_pics/hifi_100pr/sps01r0schema.png
I use the 25V 500VA toroid....
Regards, Sjoerd
http://sjostromaudio.com/hifi_pics/hifi_100pr/sps01r0schema.png
I use the 25V 500VA toroid....
Regards, Sjoerd
Let me inform you about what I built:
Power supply with 8 x 22000uF/63V slit foil caps.
I am wondering: Is higher voltage normal without load?
Wiring is as to be seen when you follow the link I provided. first secondary on AC1, second one on AC2.
When I power up, the DC voltage increases slowly to 65 to 68 VDC. But again, without load, only my multimeter
Its a Aplimo toroid type 88016.
SEC.2x25V 10.00A RED/YELLO.BLEU/GREY
So RED/YELLO on AC1 and BLUE/GREY on AC2
Helpfull?
Regards, Sjoerd
Power supply with 8 x 22000uF/63V slit foil caps.
I am wondering: Is higher voltage normal without load?
Wiring is as to be seen when you follow the link I provided. first secondary on AC1, second one on AC2.
When I power up, the DC voltage increases slowly to 65 to 68 VDC. But again, without load, only my multimeter
Its a Aplimo toroid type 88016.
SEC.2x25V 10.00A RED/YELLO.BLEU/GREY
So RED/YELLO on AC1 and BLUE/GREY on AC2
Helpfull?
Regards, Sjoerd
25V secondaries should give you a DC in the range of 35V (roughly). Unloaded will be a couple volts more, due to transformer regulation. Your 68V sound like you're measuring both rails in series and not each one referring to ground.
Did you use a finished PCB or did you do one yourself?
Did you use a finished PCB or did you do one yourself?
Hi sofaspud,
Both halves measure the same..... But when measured via ground I do get 36VDC.... But between NEG and POS I get 68VDC.....
That's exactly what this PSU is supposed to do...
Then I don't see the problem. The 68V measurement is the voltage of both the secondaries. Ground should be the reference here, with a ±36V bipolar supply resulting. From your link, the measurement across the full supply would be 126VDC.
yes, +/-36V looks perfectly normal...but then there ought to be 72V between pos and neg, no ?
Ok guys, I just slammed my head against the door..... I'm a nitwit POS GND is 36VDC and NEG GND is 36VDC... Perfect!!!
I thougt I had to connect the amp only on POS and NEG, measuring 72VDC.... And I got spooked because the voltage should be +-35VDC..... (Hiraga amp)I forgot that ground is the reference.... No problems here! Sorry to have bothered you
Kind regards,
Sjoerd
I thougt I had to connect the amp only on POS and NEG, measuring 72VDC.... And I got spooked because the voltage should be +-35VDC..... (Hiraga amp)I forgot that ground is the reference.... No problems here! Sorry to have bothered you
Kind regards,
Sjoerd
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