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November 29th 09, 05:42 PM
posted to rec.radio.amateur.homebrew
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Simple unregulated switchable dual voltage rectifier circuit
Hi Joop,
Interesting circuit. Where does the R1/D1/Q/.Q2 reference point connect to ? I assume the parasitic diodes in Q1/Q2 form a current path ? -Mark On Nov 30, 2:54*am, Joop wrote: On Sun, 29 Nov 2009 00:33:13 -0800 (PST), MarkAren wrote: Bingo ! http://www.idesignz.org/misc/Simple%...tage%20PSU.pdf Thanks, Mark This is a circuit that does not suffer from temporary abcense of power during switching. And it is using a transformer with a single secundary winding.http://www.gigawatts.nl/co/projects/...bel/switch.jpg Joop |
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