Blocking AC power supply with TDA4600

Published:2011/11/23 2:04:00 Author:May | Keyword: Blocking AC, power supply | From:SeekIC

Integrated circuit TDA4600 in this circuit mainly has the task of controlling, adjusting and overseeing switching BU208. Meanwhile it isalso used to protect transistor from damaging in starting, normal operating and over load. AC 220V voltage is rectified and filtered by the circuit. And then it can generate 300V DC voltage. It can periodically add this voltage to winding 1~7 of blocking AC transformer by utilizing switching transistor. And TDA4600 is achieved adjusting. In the period of BU208 cut off, it can generate 3 peak value voltage on winding 2~16, then it is rectified to DC voltage by four rectifiers, finally, it is output by filter.



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