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Power supply device and discharging method thereof

一种电源装置、电子装置的技术，应用在电路装置、电池电路装置、电池过放电保护等方向，能够解决浪费、剩余电量无法利用、电子装置操作中断等问题

Active Publication Date: 2013-04-24
DATONG POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the use of the existing power supply device, in order to prevent the battery from being damaged due to over-discharge, the external discharge is usually interrupted when the battery output voltage is slightly lower than the above-mentioned optimal power supply voltage but not lowered to the above-mentioned cut-off voltage. Correspondingly, the user The operation of the electronic device will also be interrupted
However, at this time, the battery generally has not reached the cut-off voltage of discharge, and there is still a certain amount of remaining power that cannot be used, resulting in the need to charge again before the power is fully utilized, resulting in waste

Method used

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  • Power supply device and discharging method thereof
  • Power supply device and discharging method thereof

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Embodiment Construction

[0012] The invention discloses a power supply device, which can be connected with electronic devices such as a mobile phone, a PDA (Personal Digital Assistant, a personal digital assistant), a notebook computer, and supply power to these electronic devices.

[0013] see figure 1 The power supply device 100 includes a battery 10 , a battery protection unit 20 , a voltage adjustment unit 30 and a power management unit 40 electrically connected in sequence.

[0014] The battery 10 can be a rechargeable battery, such as a lithium battery, which can provide power for electronic devices. The output voltage of the battery 10 should be greater than a better power supply voltage under normal power supply conditions, such as the better power supply for lithium battery power. The minimum voltage is generally 3.6V. At the same time, the battery 10 also has a cut-off voltage to prevent over-discharge, for example, the cut-off voltage of a lithium battery is generally 2.5V. And the maximu...

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Abstract

A battery discharge circuit, used to couple a battery to an electronic device, includes a battery protecting module and a voltage adjusting module. The battery protecting module detects an output voltage of the battery, compares the output voltage with an end voltage of the battery, and selectively discharges the battery or not in response to the comparison result. The voltage adjusting module compares the output voltage with a work voltage of the electronic device, and selectively directly outputs the output voltage or boosts the output voltage first and then outputs the boosted output voltage.

Description

technical field [0001] The invention relates to a power supply device and a discharge method thereof, in particular to a fully dischargeable power supply device and a discharge method thereof. Background technique [0002] With the rapid development of science and technology, more and more electronic devices appear in people's daily life, such as mobile phones, PDA (Personal Digital Assistant, personal digital assistant), notebook computers and other electronic devices have become important communications in people's lives. and entertainment tools. These electronic devices are generally powered by batteries that can be recharged and discharged [0003] In use, the output voltage of the battery generally needs to reach an optimal power supply voltage, and power supply under this optimal power supply voltage can make the electronic device work in an optimal state. On the other hand, as the battery discharge continues, the output voltage of the battery will decrease according...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/0063H02J2007/004H02J7/0031H02J7/00306H02J7/007182
Inventor 谢祥渊
Owner DATONG POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER
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