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2. 发明申请

US20120155122A1 CONTROLLER AND CONTROLLING METHOD FOR POWER CONVERTER 失效
标题翻译：电源转换器的控制器和控制方法
公开(公告)号：US20120155122A1
公开(公告)日：2012-06-21
申请号：US13040601
申请日：2011-03-04
申请人： Chien-Fu TANG , Isaac Y. CHEN , Jiun-Hung PAN
发明人： Chien-Fu TANG , Isaac Y. CHEN , Jiun-Hung PAN
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： A controller for a power converter is provided. The controller includes a sense current integrating circuit, a reference current integrating circuit and a drive signal generation circuit. The sense current integrating circuit performs an integrating operation to a sense current representative of a conduction current flowing through a power switch of the power converter and thereby outputs a first integrating result. The reference current integrating circuit performs another integrating operation to a reference current and thereby outputs a second integrating result. The drive signal generation circuit determines a switching period of the power switch according to a status of an output voltage of the power converter cooperative with a relative magnitude relationship between the first integrating result and the second integrating circuit. Furthermore, a controlling method for such power converter also is provided.
摘要翻译：提供一种用于功率转换器的控制器。控制器包括感测电流积分电路，参考电流积分电路和驱动信号发生电路。感测电流积分电路对表示流过功率转换器的电源开关的导通电流的感测电流进行积分运算，从而输出第一积分结果。参考电流积分电路对参考电流进行另一个积分运算，从而输出第二积分结果。驱动信号生成电路根据第一积分结果与第二积分电路之间的相对大小关系，根据功率转换器的输出电压的状态来决定电源开关的开关周期。此外，还提供了一种用于这种功率转换器的控制方法。

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