Power supply apparatus
AssigneeAcer Communications and Multimedia Inc.
InventorsTsung Hsun Wu, Chuan Chu Chen
Life of this patent
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Abstract
The present invention provides a power supply apparatus for outputting an output voltage according to a first signal from outside, the power supply apparatuses comprises a rectifier, a power transformer, a power control circuit, and a switching device. The rectifier is provided for supplying a DC voltage source. The power transformer receives the DC voltage source, then outputs the output voltage and a second signal. The power control circuit is provided for controlling the output voltage of the power transformer according to the second signal, then the switching device outputs the second signal to the power control circuit according to the first signal.
Claims30
A power supply apparatus for outputting an output voltage according to a first signal from outside, comprising:
- a rectifier for supplying a DC voltage source;
- a power transformer which receives the DC voltage source, then outputs the output voltage and a second signal;
- a power control circuit for controlling the output voltage of the power transformer according to the second signal;
- and
- a switching device for outputting the second signal to the power control circuit according to the first signal.
A computer device, comprising:
- a host for supplying a first signal;
- and
- a monitor, which comprises a power supply apparatus for supplying an output voltage to the monitor according to the f first signal, wherein the power supply apparatus comprises:
- a rectifier for supplying a DC voltage source;
- a power transformer which receives the DC voltage source, then outputs the output voltage and a second signal;
- a power control circuit for controlling the output voltage of the power transformer according to the second signal;
- and
- a switching device for outputting the second signal to the power control circuit according to the first signal.
A monitor device for coupling a host which supplies a first signal, comprising:
- a power supply apparatus which outputs an output voltage to a monitor device according to the first signal, wherein the power supply apparatus comprises:
- a rectifier for supplying a DC voltage source;
- a power transformer which receives the DC voltage source, then outputs the output voltage and a second signal;
- a power control circuit for controlling the output voltage of the power transformer according to the second signal;
- and
- a switching device for outputting the second signal to the power control circuit according to the first signal.
Dependencies are inferred from the claim text.