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shi me shi kai guan dian yuan
Author(s): 
Pages: 40
Year: Issue:  3
Journal: Family Electronics

Keyword:  开关电源开关管开关稳压器连接方式基本原理放电时间常数彩色电视机初级绕组厚膜电路串联型;
Abstract: <正> 串联型和并联型开关稳压器电视机中使用的开关电源,按开关管和负载的连接方式,可以分成串联型和并联型。串联型开关电源的基本原理如图1所示。图中,脉冲变压器绕组L1为初级储能绕组;L2为输出供电绕组。L2上的感应脉冲经D1整流、C1滤波,得到直流电压向负载供电。负载与开关管串联连接。在Q1的导通
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