JPS6468069A - Vertical deflection circuit - Google Patents
Vertical deflection circuitInfo
- Publication number
- JPS6468069A JPS6468069A JP22385287A JP22385287A JPS6468069A JP S6468069 A JPS6468069 A JP S6468069A JP 22385287 A JP22385287 A JP 22385287A JP 22385287 A JP22385287 A JP 22385287A JP S6468069 A JPS6468069 A JP S6468069A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- resistor
- clamping
- vertical deflection
- vertical
- 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
Abstract
PURPOSE:To prevent the image fluctuation in the vertical direction of a regenerated video signal, etc., of a still picture, whose vertical period varies at every field, by clamping the connection point between a vertical deflection coil and an S-shaped correction capacitor by means of a clamping means. CONSTITUTION:The titled circuit is provided with a switching element 7 for clamping whose one end is connected to the connecting point A between the vertical deflection coil 4 and the S-shaped correction capacitor 5, a first resistor 8 connected between the other end of the element 7 and a power supply terminal 9, a capacitor 11 connected to the connecting point B between the other end of the element 7 and the first resistor 8, and a second resistor 10 connected to the contacting point A between the coil 4 and the capacitor 5. Accordingly, the capacitor 11 connected to the capacitor 5 via the element 7 discharges during a retrace period in order to charge the capacitor 5, so that the start potential in parabolic waveform supplied by the capacitor 5 is clamped in a necessary level. As a result, the rocking of a still image in the vertical direction can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22385287A JPS6468069A (en) | 1987-09-09 | 1987-09-09 | Vertical deflection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22385287A JPS6468069A (en) | 1987-09-09 | 1987-09-09 | Vertical deflection circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6468069A true JPS6468069A (en) | 1989-03-14 |
Family
ID=16804724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22385287A Pending JPS6468069A (en) | 1987-09-09 | 1987-09-09 | Vertical deflection circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6468069A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6529245B2 (en) | 1997-09-03 | 2003-03-04 | Hitachi, Ltd. | Display device also compatible with digital broadcasts |
-
1987
- 1987-09-09 JP JP22385287A patent/JPS6468069A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6529245B2 (en) | 1997-09-03 | 2003-03-04 | Hitachi, Ltd. | Display device also compatible with digital broadcasts |
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