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Circuit and method of controlling a regulator with an output feedback signal and devoid of an input feedforward signal
Circuit and method of controlling a regulator with an output feedback signal and devoid of an input feedforward signal
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机译:在没有输入前馈信号的情况下用输出反馈信号控制调节器的电路和方法
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摘要
A power factor correction controller circuit 100 for controlling the duration of each on time phase and off time phase of a switched inductor power factor correction circuit 20, 30, 40, 50, 100 which is adapted for use with a rectifying arrangement 9, 10, 60, 70 producing a substantially regulated output voltage, Vo. The controller circuit 100 comprises an input terminal 114 for receiving a signal representative of Vo; an output terminal 131 for outputting a signal representative of the duration of each on time phase and off time phase; and on time determination means 110, 111, 112, 113, 114, 115, 116, 117; wherein the on time determination means acts to vary the maximum duration of each on time phase in an inverse dependence on Vo.
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