JPS55165041A - Power feeding circuit - Google Patents

Power feeding circuit

Info

Publication number
JPS55165041A
JPS55165041A JP7337579A JP7337579A JPS55165041A JP S55165041 A JPS55165041 A JP S55165041A JP 7337579 A JP7337579 A JP 7337579A JP 7337579 A JP7337579 A JP 7337579A JP S55165041 A JPS55165041 A JP S55165041A
Authority
JP
Japan
Prior art keywords
power feeding
voltage
circuit
point
ground
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
JP7337579A
Other languages
Japanese (ja)
Inventor
Akimasa Yamazaki
Yoichiro Enami
Nobuhiro Bando
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
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon Electric 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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7337579A priority Critical patent/JPS55165041A/en
Publication of JPS55165041A publication Critical patent/JPS55165041A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/44—Arrangements for feeding power to a repeater along the transmission line

Abstract

PURPOSE:To enable to use the output voltage of the power feeding unit efficiently, by balancing the positive and negative sides of the applied voltage to the line through varied grounding point. CONSTITUTION:The power feeding circuit 1 is provided with the circuit 6 which can change the grounding point. When the relation of E<+>>¦E<->¦ is caused between the applied voltages E<+>, E<-> to ground to the lines 4 and 5, E<+>=E<-> is obtained by moving the grounded point to the negative side from the neutral point by E<+>-¦E<->¦ with the circuit 6. Accordingly, even if the condition of E3 E4 is taken place for the voltage drops E3, E4 at the relay units 2 and 3, E<+>+¦E<->¦=2ET (where; ET is the ground applied voltage to the permitted line) is possible, resulting in effectively using the power feeding voltage of the power feeding unit.
JP7337579A 1979-06-11 1979-06-11 Power feeding circuit Pending JPS55165041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7337579A JPS55165041A (en) 1979-06-11 1979-06-11 Power feeding circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7337579A JPS55165041A (en) 1979-06-11 1979-06-11 Power feeding circuit

Publications (1)

Publication Number Publication Date
JPS55165041A true JPS55165041A (en) 1980-12-23

Family

ID=13516363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7337579A Pending JPS55165041A (en) 1979-06-11 1979-06-11 Power feeding circuit

Country Status (1)

Country Link
JP (1) JPS55165041A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4877709A (en) * 1971-12-15 1973-10-19 Post Office
JPS5164816A (en) * 1974-10-14 1976-06-04 Philips Nv

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4877709A (en) * 1971-12-15 1973-10-19 Post Office
JPS5164816A (en) * 1974-10-14 1976-06-04 Philips Nv

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