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T O P I C R E V I E W
ester
Posted - Jul 05 2011 : 02:28:00 AM Can you help me how can i get 2 watt power from output of this circuit ? I change a lot of transistor but I can not get 2 wat.can say me which kind of transistor I should use? Output voltage is 2000v.also i ronged drap colector and emiter in q2 it should be change place.what can i calculate the power????????? http://img98.net/show.php/444830_p.bmp.html
(Edit...Move to Power Supply)
1 L A T E S T R E P L I E S (Newest First)
audioguru
Posted - Jul 05 2011 : 3:03:38 PM Your TIP42 transistor is shown upside-down. Its emitter must be more positive than its collector and its emitter is its output since it is an emitter-follower.
The output of your circuit feeds DC pulses to the transformer. The transformer works much better with AC when it is fed through a coupling capacitor like I show. The battery needs a bypass capacitor.
I don't know if your transformer works well at 1kHz and I don't know if it is rated for at least 2W.
For 2W output the battery might have a load of 3W or 4W. A 4W load draws 444mA which a new little 9V battery can produce for only a few minutes.