JPS54128625A - High voltage limit circuit for television receiver - Google Patents

High voltage limit circuit for television receiver

Info

Publication number
JPS54128625A
JPS54128625A JP3607178A JP3607178A JPS54128625A JP S54128625 A JPS54128625 A JP S54128625A JP 3607178 A JP3607178 A JP 3607178A JP 3607178 A JP3607178 A JP 3607178A JP S54128625 A JPS54128625 A JP S54128625A
Authority
JP
Japan
Prior art keywords
voltage
high voltage
limit circuit
load variation
capacitor
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
JP3607178A
Other languages
Japanese (ja)
Inventor
Takaharu Kubota
Atsushi Awanaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3607178A priority Critical patent/JPS54128625A/en
Publication of JPS54128625A publication Critical patent/JPS54128625A/en
Pending legal-status Critical Current

Links

Landscapes

  • Details Of Television Scanning (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)

Abstract

PURPOSE:To simplify the circuit, by eliminating the high voltage control and correction circuit, by superimposingly using the voltage rectifying and smoothing the flyback pulse as the detection voltage detecting the high voltage in the high voltage limit circuit of a TV receiver and the voltage changed according to the high voltage load variation. CONSTITUTION:In the high voltage limit circuit of a TV receiver, the flyback pulse of the flyback transformer winding 1 is rectified with the diode 3 as the detection voltage detecting the high voltage, and the DC voltage smoothed with the smmothing capacitor 4 and the voltage varied with load variation produced across the emitter resistor 19 of the horizontal output transistor Tr 18 are used. Further, the low voltage side of the capacitor 4 is connected to one end of the emitter resistor 19 of Tr 18, and the voltage varied with the load variation and the voltage smoothed with the capacitor 4 are superimposed to form the high voltage detection voltage.
JP3607178A 1978-03-30 1978-03-30 High voltage limit circuit for television receiver Pending JPS54128625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3607178A JPS54128625A (en) 1978-03-30 1978-03-30 High voltage limit circuit for television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3607178A JPS54128625A (en) 1978-03-30 1978-03-30 High voltage limit circuit for television receiver

Publications (1)

Publication Number Publication Date
JPS54128625A true JPS54128625A (en) 1979-10-05

Family

ID=12459492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3607178A Pending JPS54128625A (en) 1978-03-30 1978-03-30 High voltage limit circuit for television receiver

Country Status (1)

Country Link
JP (1) JPS54128625A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57115079A (en) * 1980-02-11 1982-07-17 Rca Corp High voltage protecting circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57115079A (en) * 1980-02-11 1982-07-17 Rca Corp High voltage protecting circuit
JPH035106B2 (en) * 1980-02-11 1991-01-24 Rca Licensing Corp

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