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SOFT-START CIRCUIT OF LINEAR VOLTAGE REGULATOR AND METHOD THEREOF
SOFT-START CIRCUIT OF LINEAR VOLTAGE REGULATOR AND METHOD THEREOF
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机译:线性电压调节器的软启动电路及其方法
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摘要
A voltage regulator circuit for providing a substantially constant output voltage is disclosed. The voltage regulator circuit has a voltage regulator, a current sensing and comparing circuit, a capacitive load circuit, and a control circuit. The voltage regulator generates an output current in response to a control signal to provide the output voltage. The current sensing and comparing circuit senses the output current and outputs a result signal according to a sensed output current and a predetermined current value. The control circuit generates the control signal according to the comparison result to limit the output current. The capacitive load circuit provides the control circuit with a first capacitance when the voltage regulator circuit changes from a first mode to a second mode and provides the control circuit with a second capacitance when the voltage regulator circuit changes from the second mode to the first mode.
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