JPS55115116A - Direct current power supply unit - Google Patents

Direct current power supply unit

Info

Publication number
JPS55115116A
JPS55115116A JP2081879A JP2081879A JPS55115116A JP S55115116 A JPS55115116 A JP S55115116A JP 2081879 A JP2081879 A JP 2081879A JP 2081879 A JP2081879 A JP 2081879A JP S55115116 A JPS55115116 A JP S55115116A
Authority
JP
Japan
Prior art keywords
battery
charge
relay
charging
temperature
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
JP2081879A
Other languages
Japanese (ja)
Inventor
Morio Sato
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2081879A priority Critical patent/JPS55115116A/en
Publication of JPS55115116A publication Critical patent/JPS55115116A/en
Pending legal-status Critical Current

Links

Landscapes

  • Direct Current Feeding And Distribution (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE: To enable to prevent over-charge of battery, by forming the self-hold circuit including the relay contact when charge closes to full state and the temperature switch is restored.
CONSTITUTION: In rapid charging of the battery, the output of secondary side of the transformer 13 is rectified 14 to charge up the battery 20. In this case, when the temperature switch 15 is operated with the temperature rise of the heat dissipating units such as the transformer 13 and rectifier 14, the relay 12 is activated and the relay contacts 121 and 122 are selected to normally closed position for stationary charging. Further, when the battery 20 is charged close to full charge, the charging current remarkably decreases and the switch 15 is restored by temperature decrease at each part. But, since the contact 122 is in self-hold state, the battery 20 can be avoided from being overcharged without rapid charging.
COPYRIGHT: (C)1980,JPO&Japio
JP2081879A 1979-02-26 1979-02-26 Direct current power supply unit Pending JPS55115116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2081879A JPS55115116A (en) 1979-02-26 1979-02-26 Direct current power supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2081879A JPS55115116A (en) 1979-02-26 1979-02-26 Direct current power supply unit

Publications (1)

Publication Number Publication Date
JPS55115116A true JPS55115116A (en) 1980-09-04

Family

ID=12037604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2081879A Pending JPS55115116A (en) 1979-02-26 1979-02-26 Direct current power supply unit

Country Status (1)

Country Link
JP (1) JPS55115116A (en)

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