Guest Kasamiko Posted May 20, 2004 Report Posted May 20, 2004 I'm planning to construct this circuit:But will be using a power transistor instead of a BUZ 326 MOSFET.Anybody can help me modify it?? ???Thanks!! Quote
Guest Kasamiko Posted May 20, 2004 Report Posted May 20, 2004 Yes Ante, MOSFET will be great..but it's available in my place.. :(Will BUZ10 or 11 will do the job??Thanks again.Rhonn Quote
hotwaterwizard Posted May 20, 2004 Report Posted May 20, 2004 Looks Like a Voltage Regulator. How about Tnis? Quote
audioguru Posted May 21, 2004 Report Posted May 21, 2004 Kasamiko,The BUZ10 and BUZ11 are rated for only 50V, and 75W.The 30A BUZ11 is good for a very simple inverter. 300W would be easy from a single pair, directly driven from a 4047. Newer MOSFETs having a higher current rating (with better thermal conductivity) would operate cooler and allow more output.Hotwaterwizard,If you simply replace your resistor and zener with a pot to make the output voltage adjustable, then the transistor's base current will fry the pot.But maybe a darlington transistor will work. Quote
ante Posted May 21, 2004 Report Posted May 21, 2004 Kasamiko,I see, you have problems getting components at your place. To find a suitable MOSFET for this purpose I would look in an old PC PSU if you can get your hands on one. Or if you want to have a bipolar BUV 90 is a good choice, common in old TV sets. Ante ::) Quote
Guest Kasamiko Posted May 22, 2004 Report Posted May 22, 2004 Hi ANTE,I found some computer PSU that uses this MOSFET'sP2NC60PF,SSP2N60B. I don't know if they will the job??Rhonn ;) Quote
ante Posted May 22, 2004 Report Posted May 22, 2004 Kasamiko,Yes, I think the SSP2N60B will work for your project. This 600V 2A N-channel is worth a try. Keep us posted on the progress!Good Luck.Ante ::) Quote
audioguru Posted May 22, 2004 Report Posted May 22, 2004 Kasamiko,What are you using 330VDC for?That's enough voltage to glow in the dark! Quote
Guest Kasamiko Posted May 23, 2004 Report Posted May 23, 2004 I've been servicing colored tv's and need a variable power supply to power some tv set under repair..Yes I know 330VDC is too much.. :o :o Quote
hotwaterwizard Posted May 27, 2004 Report Posted May 27, 2004 my father use to use a variac for that. A wire wound variable transformer or Autotransformer. Quote
Guest Kasamiko Posted May 28, 2004 Report Posted May 28, 2004 It's the best way!! and it also cost about my 1 MONTH SALARY!! :'( :'(Rhonn Quote
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