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Power supply device and method for portable electronic device

A technology for electronic devices and power supply devices, applied in circuit devices, battery circuit devices, current collectors, etc., can solve the problem of high cost

Inactive Publication Date: 2012-09-05
王春生 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And a 90W adapter costs more than a 65W adapter

Method used

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  • Power supply device and method for portable electronic device
  • Power supply device and method for portable electronic device
  • Power supply device and method for portable electronic device

Examples

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Embodiment Construction

[0013] figure 1 It is a block diagram illustrating a power supply device of a portable electronic device according to an embodiment of the present invention. This portable electronic device 100 (such as a notebook computer, etc.) includes an external adapter (Adapter) 111, an external power supply connector 120, a battery 130, a first converter (converter) group 140, a second converter group 150 and a switch Network 160. Wherein, the external adapter 111 converts the mains power 112 into electric energy required by the portable electronic device, and the external power supply 110 here represents the electric energy provided by the external adapter 111 . The external power supply connector 120 can be selectively connected to the external power supply 110 .

[0014] When the external power 110 is not supplied to the portable electronic device 100, for example, the external adapter 111 is not connected to the external power connector 120, the switching network 160 can couple th...

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Abstract

The invention discloses a power supply device and a power supply method for a portable electronic device. The power supply device comprises an external power connector, a battery, a first converter set, a second converter set and a switching network. A power input end of the first converter set is coupled to the external power connector, wherein the first and second converter sets provide operating power required by the portable electronic device. When the operating power of a system is smaller than the preset power (such as adapter power), the switching network couples the second converter set to the external power connector, and the system is powered by an external power supply; and when the operating power of the system is greater than the preset power, the switching network couples the second converter set to the battery, and one part of power supply is provided by the external power supply and the other part of power supply is provided by the battery. Therefore, an adaptor with small power can be selected to provide the external power supply so as to reduce cost.

Description

technical field [0001] The present invention relates to a portable electronic device, and in particular to a power supply device and method for the portable electronic device. Background technique [0002] Portable electronic devices (such as notebook computers, etc.) have two power supply modes: battery power supply (or called DC Mode) or external power supply (or called AC Mode). The external power supply method generally uses an external adapter (Adapter) to provide the power required by the portable electronic device. For traditional technologies, portable electronic devices can only use one of the above two methods. In AC Mode, the power supply capability of the external adapter is required to be higher than the maximum power consumption of the portable electronic device. In DC Mode, the power supply capacity of the internal battery is required to be higher than the maximum power consumption of the portable electronic device. [0003] However, in terms of actual usag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/02
Inventor 栾桂鹏曾庆澍
Owner 王春生
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