Controller and power converter using the same for clamping maximum switching current of power converter
    1.
    发明授权
    Controller and power converter using the same for clamping maximum switching current of power converter 有权
    控制器和电源转换器采用相同的钳位功率转换器的最大开关电流

    公开(公告)号:US08749999B2

    公开(公告)日:2014-06-10

    申请号:US13344134

    申请日:2012-01-05

    IPC分类号: H02M3/335 H02H7/122

    摘要: A controller of a power converter is provided. The controller includes a feedback circuit, an output circuit, and a clamping circuit. The feedback circuit generates a feedback signal in accordance with output of the power converter. The output circuit generates a switching signal in accordance with the feedback signal for regulating the output of the power converter. The clamping circuit limits the feedback signal under a first level for a first load condition and limits the feedback signal under a second level for a second load condition. The clamping circuit includes a timer circuit. The timer circuit determines a slew rate of the feedback signal for increasing the feedback signal from the first level to the second level, and the second level is higher than the first level.

    摘要翻译: 提供电源转换器的控制器。 控制器包括反馈电路,输出电路和钳位电路。 反馈电路根据功率转换器的输出产生反馈信号。 输出电路根据用于调节功率转换器的输出的反馈信号产生开关信号。 钳位电路将反馈信号限制在第一级的第一负载条件下,并将反馈信号限制在第二级的第二负载条件。 钳位电路包括定时器电路。 定时器电路确定用于将反馈信号从第一电平增加到第二电平的反馈信号的转换速率,并且第二电平高于第一电平。