JPH0191626A - Battery charging equipment - Google Patents

Battery charging equipment

Info

Publication number
JPH0191626A
JPH0191626A JP24919287A JP24919287A JPH0191626A JP H0191626 A JPH0191626 A JP H0191626A JP 24919287 A JP24919287 A JP 24919287A JP 24919287 A JP24919287 A JP 24919287A JP H0191626 A JPH0191626 A JP H0191626A
Authority
JP
Japan
Prior art keywords
signal
secondary battery
terminal voltage
voltage
charging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP24919287A
Inventor
Toshinori Suzuki
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP24919287A priority Critical patent/JPH0191626A/en
Publication of JPH0191626A publication Critical patent/JPH0191626A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To contrive to shorten an electrification time by controling the duty cycle of a charging pulse signal according to the terminal voltage of a secondary battery.
CONSTITUTION: Charging of a secondary battery 9 is repeated by the ON-OFF action of a switching transistor 8 by means of a signal A. The terminal voltage C of the secondary battery 9 is compared with the given voltage of a reference voltage resistor 15 in a voltage compare part 14a via sampling and hold circuit 12 and A/D converter circuit 13. At the time of signal F>6V, the signal G of a timing controller 14b sends out 'High' and the signal A with 20% duty cycle is outputted from a timing circuit 11. The switching transistor 8 receiving said signal A repeats 80% ON state and 20% OFF state, while the same operation is repeated also in charging of the secondary battery 9 and the terminal voltage C also rises gradually. When the terminal voltage C exceeds a given value, an electrification time is shortened to a certain value.
COPYRIGHT: (C)1989,JPO&Japio
JP24919287A 1987-10-02 1987-10-02 Battery charging equipment Pending JPH0191626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24919287A JPH0191626A (en) 1987-10-02 1987-10-02 Battery charging equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24919287A JPH0191626A (en) 1987-10-02 1987-10-02 Battery charging equipment

Publications (1)

Publication Number Publication Date
JPH0191626A true JPH0191626A (en) 1989-04-11

Family

ID=17189268

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24919287A Pending JPH0191626A (en) 1987-10-02 1987-10-02 Battery charging equipment

Country Status (1)

Country Link
JP (1) JPH0191626A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090459A (en) * 1990-01-29 1992-02-25 Toyoda Gosei Co., Ltd. Fuel tank system
JPH0677875A (en) * 1992-06-25 1994-03-18 American Teleph & Telegr Co <Att> Charge housing base for cordless telephone receiver
WO1997044878A1 (en) * 1996-05-21 1997-11-27 Matsushita Electric Industrial Co., Ltd. Pulse charging method and a charger
JP2018519780A (en) * 2016-02-05 2018-07-19 グァンドン オッポ モバイル テレコミュニケーションズ コーポレーション リミテッド Adapter and charge control method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090459A (en) * 1990-01-29 1992-02-25 Toyoda Gosei Co., Ltd. Fuel tank system
JPH0677875A (en) * 1992-06-25 1994-03-18 American Teleph & Telegr Co <Att> Charge housing base for cordless telephone receiver
WO1997044878A1 (en) * 1996-05-21 1997-11-27 Matsushita Electric Industrial Co., Ltd. Pulse charging method and a charger
US5945811A (en) * 1996-05-21 1999-08-31 Matsushita Electric Industrial Co., Ltd. Pulse charging method and a charger
JP2018519780A (en) * 2016-02-05 2018-07-19 グァンドン オッポ モバイル テレコミュニケーションズ コーポレーション リミテッド Adapter and charge control method

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