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Method and circuit for controlling a switched-mode power converter with fast transient response
Method and circuit for controlling a switched-mode power converter with fast transient response
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机译:用于控制具有快速瞬态响应的开关模式功率转换器的方法和电路
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摘要
A method is disclosed for controlling a DC-DC switched-mode power converter comprising a switch, the method comprising, whilst controlling the switch by a main control loop: detecting a step in a load on the switched-mode power converter; generating a signal in response to the detector detecting a step in the load, and switching the switch in response to the signal. Advantageously, the method may avoid a delay (such as waiting for a subsequent oscillator pulse) which might otherwise occur before switching the switch, to react to the transient. The faster response may result in a reduction of the transient current from the converter, which may facilitate the use of smaller and cheaper components. A controller configured to operate such a method is also disclosed
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