GB774274A - Improvements in or relating to electrical interference suppressors - Google Patents

Improvements in or relating to electrical interference suppressors

Info

Publication number
GB774274A
GB774274A GB148053A GB148053A GB774274A GB 774274 A GB774274 A GB 774274A GB 148053 A GB148053 A GB 148053A GB 148053 A GB148053 A GB 148053A GB 774274 A GB774274 A GB 774274A
Authority
GB
United Kingdom
Prior art keywords
capacitors
conductor
relating
earthed
electrical interference
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.)
Expired
Application number
GB148053A
Inventor
Donald Alfred Beresford
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB148053A priority Critical patent/GB774274A/en
Publication of GB774274A publication Critical patent/GB774274A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/35—Feed-through capacitors or anti-noise capacitors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
    • H03H1/0007—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network of radio frequency interference filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
    • H03H7/425—Balance-balance networks
    • H03H7/427—Common-mode filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1758—Series LC in shunt or branch path

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

774,274. Protective arrangements. STANDARD TELEPHONES & CABLES, Ltd. Jan. 19, 1953, No. 1480/53. Class 38 (4). [Also in Groups XXXVI and XL (b)] An interference suppressor comprises two capacitors of different values connected between an earthed point and two spaced points on a conductor. The capacitors resonate with their self-inductances and with the inductance of the conductor at two different frequencies, the result being an increase in the frequency range for which the transfer impedance of the suppressor circuit remains below a desired value. The figures show a symmetrical arrangement in which two pairs of capacitors C3, C4 and C7, C8 are connected respectively between bus-bars AB, CD and an earthed casing 13. Specification 712,650, [Group XXXVI], is referred to.
GB148053A 1953-01-19 1953-01-19 Improvements in or relating to electrical interference suppressors Expired GB774274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB148053A GB774274A (en) 1953-01-19 1953-01-19 Improvements in or relating to electrical interference suppressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB148053A GB774274A (en) 1953-01-19 1953-01-19 Improvements in or relating to electrical interference suppressors

Publications (1)

Publication Number Publication Date
GB774274A true GB774274A (en) 1957-05-08

Family

ID=9722735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB148053A Expired GB774274A (en) 1953-01-19 1953-01-19 Improvements in or relating to electrical interference suppressors

Country Status (1)

Country Link
GB (1) GB774274A (en)

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