[sdiy] Bipolar power supply

Ullrich Peter Peter.Ullrich at kapsch.net
Wed Oct 8 07:28:43 CEST 2014


Hi!

Very interesting. The voltage overdhot can be seen on some of these cheap power supply units.
I have one that produces a 200ms overshot to about 10V when set to 5V!
A pulse that long is likely to kill your microcontrollers or other electronics...

This happens when you use the output on/off switch. When you switch the complete unit via power mains switch then it works fine as the regulation comes up slowly.

Ciao
Peter 

Http://www.ullrich.at.tt
________________________________________
Von: synth-diy-bounces at dropmix.xs4all.nl [synth-diy-bounces at dropmix.xs4all.nl]" im Auftrag von "p. hendricks [ph at comcast.net]
Gesendet: Mittwoch, 08. Oktober 2014 01:50
An: synth-diy at dropmix.xs4all.nl
Betreff: Re: [sdiy] Bipolar power supply

same by another name:
http://www.eevblog.com/forum/reviews/beware-yihua-yh-305d-bench-psu/


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