JPS54128625A - High voltage limit circuit for television receiver - Google Patents
High voltage limit circuit for television receiverInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57115079A (en) * | 1980-02-11 | 1982-07-17 | Rca Corp | High voltage protecting circuit |
-
1978
- 1978-03-30 JP JP3607178A patent/JPS54128625A/en active Pending
Cited By (2)
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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