JPS5488702A - Power supply for terminal unit for portable communication - Google Patents

Power supply for terminal unit for portable communication

Info

Publication number
JPS5488702A
JPS5488702A JP16077477A JP16077477A JPS5488702A JP S5488702 A JPS5488702 A JP S5488702A JP 16077477 A JP16077477 A JP 16077477A JP 16077477 A JP16077477 A JP 16077477A JP S5488702 A JPS5488702 A JP S5488702A
Authority
JP
Japan
Prior art keywords
charging
power supply
circuit
thyristor
load
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.)
Granted
Application number
JP16077477A
Other languages
Japanese (ja)
Other versions
JPS605133B2 (en
Inventor
Satoshi Imaizumi
Kouhei Okada
Hisashi Goto
Haruhisa Furuishi
Shigeya Kuwatsuru
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.)
Nippon Telegraph and Telephone Corp
Panasonic Holdings Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Matsushita Electric Industrial Co Ltd
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 Nippon Telegraph and Telephone Corp, Matsushita Electric Industrial Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP16077477A priority Critical patent/JPS605133B2/en
Publication of JPS5488702A publication Critical patent/JPS5488702A/en
Publication of JPS605133B2 publication Critical patent/JPS605133B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1607—Supply circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To perform charge greater in charging efficiency and to supply the power supply stable to the load, by performing charging control with the combination of two NAND circuits and providing the DC power supply circuit supplying power to load. CONSTITUTION:The input power switch 10 is closed when the electrical device incorporating battery is connected, and a gate signal is given with the operation set switch circuit 18 connected to the charging power supply and the thyristor 7 controls charging current. The NAND circuit 27 confirms the condition of connection of battery, and the average value of charging current at the battery in rapid charging is detected. When the current is less than a given value, the gate of the thyristor 7 is controlled, and charging is changed over to trickle charge, and when not less than the value, the NAND circuit 28 controls the gate of the thyristor 7 with the signal from the timer circuit 24 and charging is changed over to the trickle charge. Further, DC power supply circuit 6 is provided. Thus, the charge greater in charging efficiency is made and stable power supply is fed to the load.
JP16077477A 1977-12-26 1977-12-26 Power supply for mobile communication terminal equipment Expired JPS605133B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16077477A JPS605133B2 (en) 1977-12-26 1977-12-26 Power supply for mobile communication terminal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16077477A JPS605133B2 (en) 1977-12-26 1977-12-26 Power supply for mobile communication terminal equipment

Publications (2)

Publication Number Publication Date
JPS5488702A true JPS5488702A (en) 1979-07-14
JPS605133B2 JPS605133B2 (en) 1985-02-08

Family

ID=15722153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16077477A Expired JPS605133B2 (en) 1977-12-26 1977-12-26 Power supply for mobile communication terminal equipment

Country Status (1)

Country Link
JP (1) JPS605133B2 (en)

Also Published As

Publication number Publication date
JPS605133B2 (en) 1985-02-08

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