VOLTAGE REGULATING APPARATUS AND METHOD AND VOLTAGE REGULATOR THEREOF
First Claim
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1. A voltage-regulating method, comprising:
- receiving an input voltage by a first regulator, and outputting a first voltage according to the input voltage;
turning on a second regulator when the input voltage reaches a predetermined voltage value; and
outputting a second voltage by the second regulator according to at least one of the input voltage and the first voltage,wherein a value of the first voltage is smaller than that of the second voltage.
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Abstract
A voltage regulating apparatus and method and voltage regulator thereof are presented. The apparatus includes a first regulator and a second regulator. The first regulator is used for receiving an input voltage and outputting a first voltage according to the input voltage. When the input voltage reaches a steady voltage value, the second regulator is turned on so as to receive the first voltage provided by the first regulator and output a second voltage according to the first voltage or the input voltage.
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Citations
20 Claims
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1. A voltage-regulating method, comprising:
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receiving an input voltage by a first regulator, and outputting a first voltage according to the input voltage; turning on a second regulator when the input voltage reaches a predetermined voltage value; and outputting a second voltage by the second regulator according to at least one of the input voltage and the first voltage, wherein a value of the first voltage is smaller than that of the second voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A voltage-regulating apparatus, having an output terminal, comprising:
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a first regulator, coupled to the output terminal, for receiving an input voltage and outputting a first voltage; and a second regulator, coupled to the output terminal, for outputting a second voltage when the input voltage reaches a predetermined voltage value; wherein the input voltage is increased from an initial voltage to a steady voltage, and the predetermined voltage value is between the initial voltage and the steady voltage, and the first voltage is output by the first regulator circuit to serve as the output voltage before the second voltage output by the second regulator circuit as the output voltage. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification