JPS57118475A - Branching device - Google Patents

Branching device

Info

Publication number
JPS57118475A
JPS57118475A JP56004346A JP434681A JPS57118475A JP S57118475 A JPS57118475 A JP S57118475A JP 56004346 A JP56004346 A JP 56004346A JP 434681 A JP434681 A JP 434681A JP S57118475 A JPS57118475 A JP S57118475A
Authority
JP
Japan
Prior art keywords
coil
terminal
noise
adverse
arrow
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
JP56004346A
Other languages
Japanese (ja)
Inventor
Keiichi Mizuguchi
Toshio Abiko
Yoshihiro Tanigawa
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP56004346A priority Critical patent/JPS57118475A/en
Publication of JPS57118475A publication Critical patent/JPS57118475A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Systems (AREA)

Abstract

PURPOSE:To reduce the voltage standing wave of an output terminal for a branching device of the common hearing system of a TV receiver, by connecting the polarities of the primary and secondary windings of a transformer adverse to each other and grounding the output terminal via a capacitor to compensating a delay of position. CONSTITUTION:An end of a primary coil 9 of a transformer 8 is connected to an input terminal 2, and the other end of the coil 9 is connected to another output terminla 4. An end of a secondary coil 10 is connected to a branching output terminal 6, and the other end of the coil 10 is grounded. If the noise, etc. is given to the terminal 6, this noise flows toward an arrow mark 11 via a resistance R1 and the coil 9. At the same time, the noise given from a load 7 and to be applied to the terminal 6 flows to the coil 10 and in an adverse direction to the arrow 12. This noise induces the voltage adverse to the arrow 11 at the coil 9 and is eliminated by the coil 9. As a result, no noise is delivered to a load 5 from the terminal 4, and furthermore the voltage standing wave is reduced at the terminal 4 since an end of a capacitor CO is grounded to compensate a delay of phase.
JP56004346A 1981-01-13 1981-01-13 Branching device Pending JPS57118475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56004346A JPS57118475A (en) 1981-01-13 1981-01-13 Branching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56004346A JPS57118475A (en) 1981-01-13 1981-01-13 Branching device

Publications (1)

Publication Number Publication Date
JPS57118475A true JPS57118475A (en) 1982-07-23

Family

ID=11581857

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56004346A Pending JPS57118475A (en) 1981-01-13 1981-01-13 Branching device

Country Status (1)

Country Link
JP (1) JPS57118475A (en)

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