Electronic device

a technology of electronic devices and power supply systems, applied in the direction of emergency power supply arrangements, process and machine control, instruments, etc., can solve the problems of significant amount of unnecessary power consumption, and achieve the effect of effective management of power consumption and power saving

Inactive Publication Date: 2014-06-26
COMPAL ELECTRONICS INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]The invention is directed to an electronic device capable of determining the state of the electronic device by the power value of the DC output voltage, and thereby dynamically regulate the voltage level of the DC output voltage, so as to effectively manage power consumption and achieve power savings.
[0019]In view of the above, according to the embodiments of the invention, the power supply system has the first dummy load configured in the electronic device, such that the power value of the DC output voltage is adjusted according to the state of the electronic device. Therefore, the power conversion control unit in the power conversion apparatus is able to determine the state of the electronic device according to the power value of the DC output voltage. Moreover, the power conversion control unit is able to dynamically regulate the voltage level of the DC output voltage according to the power requirement of the electronic device, and thereby save power by preventing unnecessary power consumption.

Problems solved by technology

Accordingly, the existing power conversion apparatus is unable to adjust the output power according to the state of the electronic apparatus connected to the power conversion apparatus, which leads to the significant amount of unnecessary power consumption.

Method used

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Embodiment Construction

[0027]In order to prevent unnecessary power consumption for a power supply system, embodiments of the invention provide an electronic device suitable for application in the power supply system. The electronic device in the power supply system is configured with at least one dummy load. Thereby, the electronic device may turn on the dummy load based on a state of the electronic device, and regulate a direct current (DC) output voltage outputted by a power conversion apparatus. The power conversion apparatus may then obtain a power requirement of the connected electronic device according to a power value of the DC output voltage, and thereby dynamically regulate a voltage level of the DC output voltage. Accordingly, the power conversion apparatus can provide a suitable power source matching the requirement and achieve a power saving effect.

[0028]Reference will now be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompan...

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Abstract

An electronic device is provided. The electronic apparatus includes a controller and a dummy load. When the dummy load is turned on by the controller, the dummy load regulates a direct current (DC) output voltage outputted to the electronic device by a power conversion apparatus connected to the electronic device. Accordingly, the electronic device communicates with the power conversion apparatus using the dummy load to dynamically regulate the DC output voltage, so as to avoid power consumption.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefits of U.S. provisional application Ser. No. 61 / 740,431, filed on Dec. 20, 2012. The entirety of the above-mentioned patent applications is hereby incorporated by reference herein and made a part of this specification.BACKGROUND OF THE INVENTION[0002]1. Field of Invention[0003]The invention relates generally to a power control technique, and more particularly to a power supply system and an electronic device having a power saving function.[0004]2. Description of Related Art[0005]At present, due to the requirement for the reduced weight of consumers' electronic apparatuses (e.g., desktop computers, notebooks, mobile phones, digital cameras, tablet PCs, etc.), power may be supplied by batteries within the electronic apparatuses or by means of external power adapters. That is, the electronic apparatuses require the power conversion apparatuses (e.g., alternating-current (AC) to direct-current (DC) ada...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H02M3/335
CPCH02J9/005H02M3/33553Y02B70/10H02M1/0032H02M1/36
Inventor SHIH, WEI-CHIHLIN, YI-HSUN
Owner COMPAL ELECTRONICS INC
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