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Battery protection circuit and battery using the same

A technology for protecting circuits and batteries, used in emergency protection circuit devices, circuits, battery pack components, etc. Safe and reliable, the effect of increasing the service life

Inactive Publication Date: 2011-07-27
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the battery is installed in a laptop or placed in a charger for charging and plugging in, you may often hear a slight beep or see sparks. Danger, and even cause the combustion of batteries and electronic products, thus becoming a hidden danger in the use of batteries

Method used

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  • Battery protection circuit and battery using the same
  • Battery protection circuit and battery using the same
  • Battery protection circuit and battery using the same

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Effect test

Embodiment Construction

[0013] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0014] The invention provides a battery protection circuit, which can be applied to batteries of electronic products such as notebook computers and tablet computers. The battery protection circuit is integrated on the battery, so it is compatible with the electronic products using the battery. figure 1 It is a circuit function block diagram of the battery protection circuit of the present invention, the battery protection circuit is connected between the battery 100 and the system 150 composed of electronic products, including a regulated voltage source 10, a sensing circuit 20, a control circuit 30 and A feedback circuit 40 . Wherein, the system 150 can be various electronic products mentioned above.

[0015] Such as figure 2 As shown, the regulated voltage source 10 includes several output terminals 161, 162, 163, 164, 165 to resp...

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PUM

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Abstract

The invention relates to a battery protection circuit used for controlling power supply to a system by the battery. The battery protection circuit comprises a sensing circuit and a control circuit. The sensing circuit comprises a triaxial acceleration gauge which is used for sensing the position changes when the battery is in an unstable state. The output voltage of three output ends of an Axis X, an Axis Y and an Axis Z in the triaxial acceleration gauge change with the position changes of the battery. The output voltage of the three output ends of Axis X, the Axis Y and the Axis Z in the triaxial acceleration gauge at last generate control voltage to the control circuit. When the battery is in the unstable state, the control voltage switches off the control circuit to prevent the battery from realizing power supply to the system. When the battery is in a stable state, the control voltage switches on the control circuit to lead that the battery canot realize to supply the power to the system, thus achieving the aim of avoiding the generated electrical spark due to the power supply to the system with an unstable contact when mounting or dismounting the battery.

Description

technical field [0001] The invention relates to a battery protection circuit, in particular to a battery protection circuit capable of eliminating electric sparks generated during battery installation and a battery using the protection circuit. Background technique [0002] Various electronic products, such as notebook computers (Notebook Computers), tablet computers (Tablet Computers), etc., all need direct current as the power supply of the electronic products when in use. In order to avoid the limitation of power consumption in use, which will affect the convenience of use due to the scope of use and the entanglement of wires, the common method is to use battery power supply. [0003] In recent years, taking notebook computers as an example, due to the rapid development of computer technology, the performance of central processing unit (CPU) and video graphics array (Video Graphics Array, VGA) has been continuously improved. With the continuous improvement of functions, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/00H02H7/18G05F1/46H03K17/687H01M50/00
CPCY02E60/10
Inventor 王冰马肇鸿
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD