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Built-in cell controller for personal communicater

A technology for battery controllers and communication equipment, applied in current collectors, battery disconnect circuits, battery circuit devices, etc., capable of solving problems such as damage to FET switches 220, accidents, etc.

Inactive Publication Date: 2005-06-15
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the FET switch 220 is continuously powered, the FET switch 220 may be damaged, and if the switch 220 is damaged, the battery 210 cannot be kept in the off state
This can lead to unexpected problems during delivery

Method used

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  • Built-in cell controller for personal communicater
  • Built-in cell controller for personal communicater
  • Built-in cell controller for personal communicater

Examples

Experimental program
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Embodiment Construction

[0018] will now refer to the attached image 3 and 4 A description is made of an exemplary embodiment of the present invention.

[0019] image 3 The structure of a battery controller according to an exemplary embodiment of the present invention is shown. refer to image 3 , the battery controller 300 includes a battery pack 310 , a battery charging circuit 320 and a power control unit 330 .

[0020] The battery pack 310 includes a battery 311 , a FET 312 for controlling the on-off state of the battery, and a protection control module (PCM) 313 for controlling the FET 312 . The PCM 313 is constructed of a printed circuit board (PCB) including an IC controller chip and FET switches for controlling current as basic elements together with passive elements such as voltage detectors, resistors, and capacitors. When electrical abnormalities such as overcharge, overdischarge, electrical short circuit, etc. occur, the PCM 313 can avoid damage to the electrical properties of the b...

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PUM

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Abstract

A built-in battery controller for personal communication devices. The battery controller includes: a push button switch that is turned on and off by the user; a power control unit that is connected to the push button switch and allows leakage current to flow through the power switch; a battery pack that includes a protection circuit module (PCM) that A protection circuit module (PCM) turns off the battery when leakage current flows through the power switch under the control of the unit; and a charging circuit for charging the battery pack. The battery controller is simple to operate and more reliably shuts down the battery without compromising the appearance of the device.

Description

[0001] This application claims priority from Korean Patent Application No. 2002-79753 filed in the Korean Intellectual Property Office on December 13, 2002, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to a battery controller, in particular to a built-in battery controller for personal communication equipment. Background technique [0003] When a personal communication device including a built-in battery such as a cellular phone or a personal digital assistant (PDA) is delivered from a factory to a user, the built-in battery must be kept in a completely turned off state. However, switching on the internal battery from a completely off state is often complicated. Since the battery is already built into the personal communication device and turned off at the factory, the user is required to disassemble the personal communication device, plug in the battery, and then reassemble the device. To solve this probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40H02J7/00
CPCH02J7/0031H04B1/40
Inventor 金翰成权锡万
Owner SAMSUNG ELECTRONICS CO LTD