JPS5466025A - Preventing device for oscillation of television receiving booster - Google Patents

Preventing device for oscillation of television receiving booster

Info

Publication number
JPS5466025A
JPS5466025A JP13294777A JP13294777A JPS5466025A JP S5466025 A JPS5466025 A JP S5466025A JP 13294777 A JP13294777 A JP 13294777A JP 13294777 A JP13294777 A JP 13294777A JP S5466025 A JPS5466025 A JP S5466025A
Authority
JP
Japan
Prior art keywords
circuit
oscillation
output
amplifier
load
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
JP13294777A
Other languages
Japanese (ja)
Inventor
Isamu Furuya
Hidetoshi Gotanda
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13294777A priority Critical patent/JPS5466025A/en
Publication of JPS5466025A publication Critical patent/JPS5466025A/en
Pending legal-status Critical Current

Links

Landscapes

  • Television Receiver Circuits (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE: To prevent oscillation by detecting an abnormal oscillation voltage and by operating a switching circuit connected to the output of a booster by its detection output for making a connection or disconnection between the output of an amplifier and a load.
CONSTITUTION: An abnormal voltage due to the oscillation of amplifier-booster 1, detected oscillation detection circuit 2, is DC-amplified, and a trigger signal is applied to the input of FF circuit 3. Then, switching circuit 4 is controlled by either output of FF circuit 3. Circuit 4 is arranged at the closest place to the load of outputs of amplifier circuit 1, and the output of the FF circuit allows the switching circuit to make a connection or disconnection between circuit 1 and the load. By the other output of FF circuit 3, display circuit 6 is operated to discriminate an operation stop from that due to other cause. Afer the inspection and repair of the oscillation, a signal from reset circuit 5 is supplied to either input of FF circuit 3 to reset circuit 3, thereby making circuit 4 return to the normal state.
COPYRIGHT: (C)1979,JPO&Japio
JP13294777A 1977-11-05 1977-11-05 Preventing device for oscillation of television receiving booster Pending JPS5466025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13294777A JPS5466025A (en) 1977-11-05 1977-11-05 Preventing device for oscillation of television receiving booster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13294777A JPS5466025A (en) 1977-11-05 1977-11-05 Preventing device for oscillation of television receiving booster

Publications (1)

Publication Number Publication Date
JPS5466025A true JPS5466025A (en) 1979-05-28

Family

ID=15093205

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13294777A Pending JPS5466025A (en) 1977-11-05 1977-11-05 Preventing device for oscillation of television receiving booster

Country Status (1)

Country Link
JP (1) JPS5466025A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0227393A2 (en) 1985-12-16 1987-07-01 Nippon Telegraph And Telephone Corporation Radio repeater with spillover measurement
JP2005064628A (en) * 2003-08-20 2005-03-10 Mitsubishi Materials Corp Relay amplifier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0227393A2 (en) 1985-12-16 1987-07-01 Nippon Telegraph And Telephone Corporation Radio repeater with spillover measurement
JP2005064628A (en) * 2003-08-20 2005-03-10 Mitsubishi Materials Corp Relay amplifier

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