AU520220B2 - Line amplifier coarse overvoltage protection - Google Patents

Line amplifier coarse overvoltage protection

Info

Publication number
AU520220B2
AU520220B2 AU51547/79A AU5154779A AU520220B2 AU 520220 B2 AU520220 B2 AU 520220B2 AU 51547/79 A AU51547/79 A AU 51547/79A AU 5154779 A AU5154779 A AU 5154779A AU 520220 B2 AU520220 B2 AU 520220B2
Authority
AU
Australia
Prior art keywords
line amplifier
input
output
coarse
connection
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.)
Ceased
Application number
AU51547/79A
Other versions
AU5154779A (en
Inventor
Erwin Popp
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of AU5154779A publication Critical patent/AU5154779A/en
Application granted granted Critical
Publication of AU520220B2 publication Critical patent/AU520220B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/36—Repeater circuits

Abstract

1. A line amplifier, in particular for carrier frequency or high frequency transmission paths, comprising a circuit arrangement for coarse surge voltage protection at the input end and output end from excess voltage interference, and comprising current supply branches (2, 4 ; 9, 11) for the remote supply of the line amplifier via the cable inner conductor of the transmission path, wherein the input (E) and the output (A) of the line amplifier are d.c. coupled together via low-pass filters (2, 11) of the current supply branches (2, 4 ; 9, 11) and the d.c. connections decoupled to a cable outer conductor (13) by means of a capacitor (3, 12) at least at one point, and in particular comprising the arrangement of a choke (10) for the d.c. connection of the low-pass filters (2, 11) and decoupling of the low-pass filters (2, 11) to the cable outer conductor connection (13) on each side of the choke (10) by means of a separate capacitor (3, 12), characterized in that at least one surge voltage arrester (1) is arranged only at the input (E) of the line amplifier for coarse surge voltage protection of the input end and output end, and that the chokes (2, 11) of the current supply branches (2, 4 ; 9, 11) and further chokes (10) which are possibility arranged in the d.c. connection path between input (E) and output (A) are so designed and dimensioned that they are saturated by surge currents with slow flanks, and that the d.c. connection between the input (E) and the output (A) of the line amplifier is designed and/or wired in such manner that the voltage drop thereon is limited.
AU51547/79A 1978-10-09 1979-10-08 Line amplifier coarse overvoltage protection Ceased AU520220B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE28439192 1978-10-09
DE2843919A DE2843919C2 (en) 1978-10-09 1978-10-09 Line amplifier with a circuit arrangement for coarse surge protection on the input and output side

Publications (2)

Publication Number Publication Date
AU5154779A AU5154779A (en) 1980-05-08
AU520220B2 true AU520220B2 (en) 1982-01-21

Family

ID=6051733

Family Applications (1)

Application Number Title Priority Date Filing Date
AU51547/79A Ceased AU520220B2 (en) 1978-10-09 1979-10-08 Line amplifier coarse overvoltage protection

Country Status (5)

Country Link
EP (1) EP0009811B1 (en)
JP (1) JPS5561240A (en)
AT (1) ATE1262T1 (en)
AU (1) AU520220B2 (en)
DE (1) DE2843919C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017476C1 (en) * 1980-05-07 1981-10-01 Siemens AG, 1000 Berlin und 8000 München Transmitter for remote-powered intermediate regenerators
DE3022677A1 (en) * 1980-06-18 1982-01-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt OVERLOAD PROTECTION SWITCH FOR LINE AMPLIFIERS
CH654149A5 (en) * 1980-11-14 1986-01-31 Zellweger Uster Ag METHOD AND DEVICE FOR PROTECTING AN ELECTRONIC DEVICE AGAINST DESTRUCTION BY STRONG ELECTROMAGNETIC IMPULSES.
JPS607204A (en) * 1983-06-27 1985-01-16 Toyo Commun Equip Co Ltd Antenna for small-sized radio equipment
ATE37257T1 (en) * 1984-04-30 1988-09-15 Siemens Ag CIRCUIT ARRANGEMENT FOR OVERVOLTAGE COARSE PROTECTION FOR AN INTERMEDIATE AMPLIFIER OR INTERMEDIATE REGENERATOR.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1462247B2 (en) * 1965-07-13 1970-12-23 Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm overload protection circuit for amplifiers, especially for remote-fed carrier frequency line amplifiers
DE1282724B (en) * 1966-04-01 1968-11-14 Siemens Ag Amplifier device for communication systems
DE1276742B (en) * 1966-12-30 1968-09-05 Siemens Ag Transistor line amplifier with overvoltage protection
JPS5170432A (en) * 1974-12-17 1976-06-18 Nippon Telegraph & Telephone HIRAI HOSHIKI
JPH0349905A (en) * 1989-07-17 1991-03-04 Toyota Motor Corp Manufacture of ceramic component

Also Published As

Publication number Publication date
JPS5734732B2 (en) 1982-07-24
ATE1262T1 (en) 1982-07-15
DE2843919C2 (en) 1983-06-30
EP0009811B1 (en) 1982-06-23
AU5154779A (en) 1980-05-08
JPS5561240A (en) 1980-05-08
DE2843919A1 (en) 1980-04-24
EP0009811A1 (en) 1980-04-16

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