Charging system of secondary battery

Abstract

PURPOSE: To conduct charging of a secondary battery by providing a charging current-setting means for setting a charging current supplied from an external power supply means to the secondary battery according to a current measured through a measuring means and a charging means for charging said secondary battery with the charging current set through this charging current-setting means. CONSTITUTION: When the body part 2 of an electronic equipment is subjected to power-ON to be placed in use, an electric current to be consumed in the body part 2 is measured by a measuring part 3. Then, measured data of the measuring part are outputted to a microcomputer 8 via A/D converter 7. The microcomputer 8 sets a charging current corresponding to a consumed current measured from the corresponding relation between the consumed current and charging current stored in a set-point table 9. A charging part controls the charging current on the basis of a current value set by the microcomputer 8 in a setting part 6 to charge a secondary battery. COPYRIGHT: (C)1991,JPO&Japio

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Cited By (5)

    Publication numberPublication dateAssigneeTitle
    CN-105301334-AFebruary 03, 2016苏州华电电气股份有限公司Multichannel direct current high voltage microammeter
    JP-2008005634-AJanuary 10, 2008Nec Corp, 日本電気株式会社充電装置
    JP-2013055773-AMarch 21, 2013Toshiba Tec Corp, 東芝テック株式会社充電制御回路、電子機器、商品情報処理装置および電子機器の制御方法
    US-RE42114-EFebruary 08, 2011Fujitsu Semiconductor LimitedControl system for charging batteries and electronic apparatus using same
    US-RE43911-EJanuary 08, 2013Fujitsu Semiconductor LimitedControl system for charging batteries and electronic apparatus using same