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Power management device and host computer

A technology of a power management device and a computer host, which is applied in the directions of data processing power supply, electrical digital data processing, digital data processing components, etc., can solve problems such as power consumption, and achieve the effect of improving power consumption

Active Publication Date: 2011-05-18
MITAC PRECISION TECH(KUNSHAN) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, each DC-to-DC voltage converter 5a, 5b, 5c, 5d, 5e still performs fixed voltage conversion and maintains a full-load operation, causing each DC-to-DC voltage converter 5a, 5b, 5c, 5d, 5e to consume additional electricity

Method used

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  • Power management device and host computer
  • Power management device and host computer
  • Power management device and host computer

Examples

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Embodiment Construction

[0020] see figure 2 As shown, a power management device 100 disclosed in the first embodiment of the present invention is applied to an electronic circuit 200 to provide power to a plurality of electronic components of the electronic circuit 200 . The electronic circuit 200 is a main circuit of a computer host (such as a notebook computer, a desktop computer, or a server host), and forms the computer host together with the power management device 100 . The electronic components are electronic chips in the electronic circuit 200 that require power, such as a central processing unit, a display chip, a north bridge chip, a south bridge chip, or a system memory.

[0021] see again figure 2 As shown, the present invention is used to manage the power supply of more than two electronic components, and the first embodiment is first described by taking two electronic components as an example. To avoid confusion, the two electronic components are respectively defined as the first el...

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PUM

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Abstract

The invention discloses a power management device and a host computer, wherein, the power management device is applied to an electronic circuit for providing electric power to a first electronic component and a second electronic component of the electronic circuit. The power management device comprises a power supplier, a master voltage converter, a slave voltage converter and a switch assembly, wherein, the master voltage converter receives the electric power from the power supplier and then outputs the electric power to the first electronic component after voltage conversion; the slave voltage converter receives the electric power and then outputs the electric power to the second electronic component after voltage conversion; and the power source of the slave voltage converter can be switched to be the master voltage converter or the power supplier through the switch assembly so as to adjust input voltage according to electric power output load and improve power consumption of the slave voltage converter.

Description

technical field [0001] The invention relates to a power management device and a computer mainframe using the power management device, in particular to a power management device and method for reducing extra power consumption. Background technique [0002] refer to figure 1 As shown, the electronic circuit 1 is the main circuit of a computer host (notebook computer, desktop computer, or servo host computer), which includes a plurality of electronic components, and these electronic components include a central processing unit 2a, a display chip 2b, a north bridge chip 2c, a south bridge The chip 2d, the system memory 2e, etc., and these electronic components respectively depend on DC power of different voltages. The power supply system 3 for the electronic circuit 1 mainly includes a power supply 4 and a plurality of DC-to-DC voltage converters 5a, 5b, 5c, 5d, 5e. The power supply 2 receives the output power from the power source (external AC power or the battery built in th...

Claims

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Application Information

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IPC IPC(8): G06F1/32G06F1/16
Inventor 李英维
Owner MITAC PRECISION TECH(KUNSHAN) CORP
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