SMPS for ZAPPulse

kvik · 11th July 2005, 02:39 PM

I need a schematic for a SMPS to power a ZAPPulse. Does anyone know some designs or reference designs??

tbr · 11th July 2005, 03:51 PM

Maybe a nearly finished one...?

I use a 150W halogen lamp smps, availble from Reichelt (Art-#: EL-TRAFO 150VA, EUR 20,90). The things to change are to lift one pin of the thermistor (I think, could also be a varistor) between prim and sec. and put the 4 sec.-windings in series or rewire the whole secondaries (only a few turns needed to get higher voltage) to get the right voltage. Then a full bridge rectifier with high speed diodes and good caps, you have it. Haven't tried to use more than one smps yet (the single one is enough to fire my 1 ohm scintilla very nicely), so don't put the ACs together as switching freq is not sync'd.

Thomas

subwo1 · 11th July 2005, 04:50 PM

I have been working on zero voltage switching designs. If nothing else, they seem to be efficient. Those halogen lamp supplies may take advantage of that principle. I know florescent lamp drivers do.

ghemink · 12th July 2005, 03:20 AM

Quote:

Originally posted by kvik
I need a schematic for a SMPS to power a ZAPPulse. Does anyone know some designs or reference designs??

http://www.diyaudio.com/forums/showt...337#post670337

I`m using this. There is also another thread in this class D forum that discusses the optimization/debugging of that supply.

Best regards

Gertjan

11th July 2005, 02:39 PM	#1
kvik diyAudio Member Join Date: Jun 2004 Location: Denmark	SMPS for ZAPPulse I need a schematic for a SMPS to power a ZAPPulse. Does anyone know some designs or reference designs??

11th July 2005, 03:51 PM	#2
tbr diyAudio Member Join Date: Dec 2003 Location: Swiss Pampa	Maybe a nearly finished one...? I use a 150W halogen lamp smps, availble from Reichelt (Art-#: EL-TRAFO 150VA, EUR 20,90). The things to change are to lift one pin of the thermistor (I think, could also be a varistor) between prim and sec. and put the 4 sec.-windings in series or rewire the whole secondaries (only a few turns needed to get higher voltage) to get the right voltage. Then a full bridge rectifier with high speed diodes and good caps, you have it. Haven't tried to use more than one smps yet (the single one is enough to fire my 1 ohm scintilla very nicely), so don't put the ACs together as switching freq is not sync'd. Thomas __________________ Thomas

11th July 2005, 04:50 PM	#3
subwo1 diyAudio Member Join Date: Jan 2002 Location: North American Continent	I have been working on zero voltage switching designs. If nothing else, they seem to be efficient. Those halogen lamp supplies may take advantage of that principle. I know florescent lamp drivers do. __________________ USMPS http://groups.yahoo.com/group/switchmode/

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