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Power supply method and power supply device for electronic device and electronic device

A technology for electronic equipment and power supply modules, applied in battery circuit devices, circuit devices, output power conversion devices, etc., can solve problems such as battery dependence, achieve the effects of reducing usage, reducing costs, and reducing the loss of non-renewable resources

Active Publication Date: 2009-11-25
LENOVO (BEIJING) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a power supply method for electronic equipment, a power supply device, and electronic equipment, so as to solve the technical problem that electronic equipment relies too much on batteries in the prior art

Method used

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

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Embodiment Construction

[0033] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0034] In the process of implementing the embodiments of the present invention, the inventors found that there are various methods to convert external light energy, mechanical energy, heat energy, etc. into electrical energy and collect them.

[0035] For example, the mechanical energy conversion device that uses piezoelectric materials to convert mechanical energy into electrical energy can convert the mechanical energy generated by the vibration of the key when the user hits the key by adding piezoelectric material to the key of the keyboard. As the number of knocks increases, more and more electrical energy is converted.

[0036] Another example is a solar light conversion device that converts light energy such as sunlight energy in...

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Abstract

The invention provides a power supply method and a power supply device for an electronic device and the electronic device. The electronic device comprises a power supply module, a charging module, a first energy storage module, a second energy storage module and a control module, wherein the power supply module comprises an external energy conversion module for converting external energy into electric energy; the charging module is used for charging by using the converted electric energy; the first energy storage module and the second energy storage module are used for storing the converted electric energy; and the control module is used for controlling both the first energy storage module and the second energy storage module in a charging state or the first energy storage module in a charging state while the second energy storage module in a power supply state, when the second energy storage module is in a charging state, the charging module or the first energy storage module charges the second energy storage module, and when the voltage of the first energy storage module is higher than that of the second energy storage module, the first energy storage module charges the second energy storage module. The technical proposal can reduce the dependence of the electronic device on a battery and achieve the effects of energy conservation and environmental protection.

Description

technical field [0001] The invention relates to equipment power supply technology, in particular to a power supply method for electronic equipment, a power supply device and electronic equipment. Background technique [0002] At present, various electronic devices such as notebook computers, mobile phones, PDAs and other handheld portable devices and wireless input Option devices such as wireless mice and wireless keyboards are more and more widely used in various industries, but these electronic devices are not connected to external devices. When it comes to power, it is mainly powered by batteries, and its battery life is always unsatisfactory. Existing solutions mainly include: [0003] 1. Increase the capacity of the battery. [0004] At present, portable devices such as notebook computers and mobile phones mainly realize the prolongation of battery life by increasing the capacity of batteries. The disadvantage of adopting this solution is: for portable devices, incre...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J15/00H02M3/155
Inventor 沈晓魁陈诚车海康陆青顺
Owner LENOVO (BEIJING) CO LTD
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