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JPS6412825A - Charger for portable radio telephone set - Google Patents

Charger for portable radio telephone set

Info

Publication number
JPS6412825A
JPS6412825A JP16728587A JP16728587A JPS6412825A JP S6412825 A JPS6412825 A JP S6412825A JP 16728587 A JP16728587 A JP 16728587A JP 16728587 A JP16728587 A JP 16728587A JP S6412825 A JPS6412825 A JP S6412825A
Authority
JP
Japan
Prior art keywords
time
charging
circuit
controller
charger
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
JP16728587A
Other languages
Japanese (ja)
Inventor
Yoshihiko Kasai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP16728587A priority Critical patent/JPS6412825A/en
Publication of JPS6412825A publication Critical patent/JPS6412825A/en
Pending legal-status Critical Current

Links

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

PURPOSE:To switch a charger to a trickle charging even when a voltage drop is not detected by adding a circuit for stopping a quick charging when a necessary time is elapsed to full-charge a battery. CONSTITUTION:A controller 23 of a portable radio telephone set 2 calculates a time necessary to full-charge a battery 21 from a waiting time and a speech time according to a predetermined program. An input power supply 3 is quickly charged by a quick charging constant-current circuit 12, but when a charging voltage starts dropping, a - V(dropping voltage) detector 14 is operated to stop the circuit 12, and a trickle charging constant-current circuit 13 is operated. A time calculated by the controller 23 is applied through a decoder 17 to a time setting variable timer 16. When the quick charging is continued even if this time is elapsed, it is switched to a trickle charging through a charging current controller 15.
JP16728587A 1987-07-03 1987-07-03 Charger for portable radio telephone set Pending JPS6412825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16728587A JPS6412825A (en) 1987-07-03 1987-07-03 Charger for portable radio telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16728587A JPS6412825A (en) 1987-07-03 1987-07-03 Charger for portable radio telephone set

Publications (1)

Publication Number Publication Date
JPS6412825A true JPS6412825A (en) 1989-01-17

Family

ID=15846921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16728587A Pending JPS6412825A (en) 1987-07-03 1987-07-03 Charger for portable radio telephone set

Country Status (1)

Country Link
JP (1) JPS6412825A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001045228A3 (en) * 1999-12-17 2001-12-20 Bosch Gmbh Robert Battery charging device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001045228A3 (en) * 1999-12-17 2001-12-20 Bosch Gmbh Robert Battery charging device

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