JPS6429077A - Circuit for degaussing cathode-ray tube - Google Patents
Circuit for degaussing cathode-ray tubeInfo
- Publication number
- JPS6429077A JPS6429077A JP18413487A JP18413487A JPS6429077A JP S6429077 A JPS6429077 A JP S6429077A JP 18413487 A JP18413487 A JP 18413487A JP 18413487 A JP18413487 A JP 18413487A JP S6429077 A JPS6429077 A JP S6429077A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- transistor
- circuit
- degaussing
- coil
- 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 always receive image without any influence of magnetization such as irregularity in coloring by discharging a voltage charged in a capacitor to a degaussing coil automatically. CONSTITUTION:When a power source is applied, a transistor Q1 turns on to charge the capacitor C1. After the lapse of a prescribed time, a transistor Q4 turns on, so that a control signal is transmitted from the output terminal 2 of a control circuit 1 via an AND circuit 5. By this control signal, transistors Q1', Q2 are turned on as well as the transistor Q1 is turned off. Accordingly, the voltage charged in the capacitor C1 is discharged to the degaussing coil L through the transistor Q2. An AC current that attenuates gradually is made flow through the coil L by selecting the values of the inductance, the internal of the coil L itself and selecting the value of the capacitance of the capacitor C1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18413487A JPS6429077A (en) | 1987-07-23 | 1987-07-23 | Circuit for degaussing cathode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18413487A JPS6429077A (en) | 1987-07-23 | 1987-07-23 | Circuit for degaussing cathode-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6429077A true JPS6429077A (en) | 1989-01-31 |
Family
ID=16147968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18413487A Pending JPS6429077A (en) | 1987-07-23 | 1987-07-23 | Circuit for degaussing cathode-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6429077A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6914384B2 (en) | 2002-10-04 | 2005-07-05 | Samsung Electronics Co., Ltd. | Degaussing circuit for CRT monitor |
-
1987
- 1987-07-23 JP JP18413487A patent/JPS6429077A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6914384B2 (en) | 2002-10-04 | 2005-07-05 | Samsung Electronics Co., Ltd. | Degaussing circuit for CRT monitor |
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