JPS5547772A - Vertical deflection circuit for television receiver - Google Patents
Vertical deflection circuit for television receiverInfo
- Publication number
- JPS5547772A JPS5547772A JP12076378A JP12076378A JPS5547772A JP S5547772 A JPS5547772 A JP S5547772A JP 12076378 A JP12076378 A JP 12076378A JP 12076378 A JP12076378 A JP 12076378A JP S5547772 A JPS5547772 A JP S5547772A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- power supply
- scanning
- vertical deflection
- 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)
Abstract
PURPOSE:To establish the vertical deflection circuit in low power consumption, by turning on and off the pump up power supply and scanning power supply alternately during scanning and blanking period. CONSTITUTION:The output of the vertical oscillation circuit 11 is fed to the vertical deflection coil 14 via the saw tooth wave generation circuit 12, and vertical amplifying output circuit 13. The comparator 17 compares the output voltage of the output circuit 13 with the scanning power supply Vcc, and when the voltage at the input terminlas A, B is B>=A, an output is made. The logical sum circuit 22 receives the output of the oscillation circuit 11 and comparator 17 to control the switch circuit 21. As a result, during the scanning period, the switch 21 is opened and the scanning power supply Vcc is given to the output circuit 13 via the diode 19. During blanking period, the switch 21 is closed and the pump up power supply, Vcc<Vr, is given to the output circuit 13. In this case, the diode 19 is made to cut-off state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12076378A JPS5547772A (en) | 1978-09-30 | 1978-09-30 | Vertical deflection circuit for television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12076378A JPS5547772A (en) | 1978-09-30 | 1978-09-30 | Vertical deflection circuit for television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5547772A true JPS5547772A (en) | 1980-04-04 |
Family
ID=14794382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12076378A Pending JPS5547772A (en) | 1978-09-30 | 1978-09-30 | Vertical deflection circuit for television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5547772A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63100893A (en) * | 1986-10-17 | 1988-05-02 | Hitachi Ltd | Convergence circuit for display device |
-
1978
- 1978-09-30 JP JP12076378A patent/JPS5547772A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63100893A (en) * | 1986-10-17 | 1988-05-02 | Hitachi Ltd | Convergence circuit for display device |
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