Power Saving Method and Power Saving Circuit Thereof
First Claim
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1. A power saving circuit for an electronic device, comprising:
- a direct-current (DC) power supply, for providing a direct-current power;
a sensing unit, coupled to the direct-current power supply, for detecting the direct-current power and operating to generate a voltage signal according to the direct-current power; and
a control unit, coupled to the sensing unit, for determining whether a system circuit of the electronic device has a light load or a heavy load according to the voltage signal and generating an enable signal.
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Abstract
A power saving circuit for an electronic device is disclosed. The power saving circuit includes a direct-current (DC) power supply, a sensing unit, and a control unit. The DC power supply is used for providing a DC current. The sensing unit, coupled to the DC power supply, is used for detecting the DC current and operating to generate a voltage signal according to the DC current. The control unit, coupled to the sensing unit, is used for determining whether a system circuit of the electronic device has a light load or a heavy load and generating an enable signal.
9 Citations
10 Claims
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1. A power saving circuit for an electronic device, comprising:
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a direct-current (DC) power supply, for providing a direct-current power; a sensing unit, coupled to the direct-current power supply, for detecting the direct-current power and operating to generate a voltage signal according to the direct-current power; and a control unit, coupled to the sensing unit, for determining whether a system circuit of the electronic device has a light load or a heavy load according to the voltage signal and generating an enable signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A power saving method for an electronic device, the power saving method comprising:
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detecting a direct-current (DC) power; operating to generate a voltage signal according to the direct-current power; determining whether a system circuit of the electronic device has a light load or a heavy load according to the voltage signal and generating an enable signal; and enabling different direct-current switching modules according to the enable signal when a load of the system circuit varies. - View Dependent Claims (8, 9, 10)
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Specification