摘要:NCP1205時安森美公司新推出的一款單端PWM控制器。文中介紹了NCP1205的內部組成、管腳功能及工作原理,并給出了所研制電源的電路及其仿真波形。
敘詞:NCP1205 反激 準諧振 谷底開通
Abstract: NCP1205 is a single ended PWM controller newly produced by ON Semiconductors. The internal structure, pin function and operation principle of NCP1205are introduced, the circuit and its operating waves of this power supply are given.
Keyword:NCP1205 Flyback Quasi-Resonant(QR) Valley-Switching