JPS6478578A - High voltage control circuit for cathode ray tube - Google Patents
High voltage control circuit for cathode ray tubeInfo
- Publication number
- JPS6478578A JPS6478578A JP23496587A JP23496587A JPS6478578A JP S6478578 A JPS6478578 A JP S6478578A JP 23496587 A JP23496587 A JP 23496587A JP 23496587 A JP23496587 A JP 23496587A JP S6478578 A JPS6478578 A JP S6478578A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power source
- output voltage
- frequency
- switching power
- 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.)
- Granted
Links
Landscapes
- Details Of Television Scanning (AREA)
Abstract
PURPOSE:To form the high voltage control circuit of a cathode ray tube which can satisfy the two requests of a power loss and a response characteristic by combining a switching power source with series power source. CONSTITUTION:The frequency of a horizontal synchronizing signal from an input terminal 1 is converted into a voltage in a frequency/voltage converting circuit 2 to obtain the voltage according to the frequency. This voltage is primarily converted in a voltage primary converting circuit 3 so as to preset to the required value of the output voltage of the frequency and the switching power source 4. This converted voltage is inputted to the switching power source 4 and the output voltage is inputted to the series power source 5. The series power source 5 defines a feed back voltage 9 obtained by dividing a high output voltage 7 by a resistance 8 to be a feed back input and the output voltage 10 is controlled so as to constantly maintain this feed back voltage 9. At the time of changing a horizontal deflecting frequency, the output voltage of the converting circuit 2 is received to change the output voltage of the switching power source 4 and control so as to maintain the output voltage 10 of the series power source 5 constantly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62234965A JPH0646780B2 (en) | 1987-09-21 | 1987-09-21 | High voltage control circuit for cathode ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62234965A JPH0646780B2 (en) | 1987-09-21 | 1987-09-21 | High voltage control circuit for cathode ray tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6478578A true JPS6478578A (en) | 1989-03-24 |
JPH0646780B2 JPH0646780B2 (en) | 1994-06-15 |
Family
ID=16979025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62234965A Expired - Lifetime JPH0646780B2 (en) | 1987-09-21 | 1987-09-21 | High voltage control circuit for cathode ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0646780B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0348577A (en) * | 1989-04-20 | 1991-03-01 | Sanyo Electric Co Ltd | High voltage stabilization circuit |
JPH0457477A (en) * | 1990-06-26 | 1992-02-25 | Victor Co Of Japan Ltd | Horizontal high voltage output circuit |
US5245243A (en) * | 1991-06-12 | 1993-09-14 | Alps Electric Co., Ltd. | Ultrasonic motor with a friction component |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6133077A (en) * | 1984-07-26 | 1986-02-15 | Hitachi Ltd | High voltage stabilizing circuit |
JPS6261110A (en) * | 1985-09-11 | 1987-03-17 | Mitsubishi Electric Corp | Dc regulated power supply device |
JPS62147863A (en) * | 1985-12-23 | 1987-07-01 | Sony Corp | Switching power supply device for multi-scanning television receiver |
JPS62216012A (en) * | 1985-11-02 | 1987-09-22 | Ricoh Co Ltd | Stabilized power supply device with high efficiency |
-
1987
- 1987-09-21 JP JP62234965A patent/JPH0646780B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6133077A (en) * | 1984-07-26 | 1986-02-15 | Hitachi Ltd | High voltage stabilizing circuit |
JPS6261110A (en) * | 1985-09-11 | 1987-03-17 | Mitsubishi Electric Corp | Dc regulated power supply device |
JPS62216012A (en) * | 1985-11-02 | 1987-09-22 | Ricoh Co Ltd | Stabilized power supply device with high efficiency |
JPS62147863A (en) * | 1985-12-23 | 1987-07-01 | Sony Corp | Switching power supply device for multi-scanning television receiver |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0348577A (en) * | 1989-04-20 | 1991-03-01 | Sanyo Electric Co Ltd | High voltage stabilization circuit |
JPH0457477A (en) * | 1990-06-26 | 1992-02-25 | Victor Co Of Japan Ltd | Horizontal high voltage output circuit |
US5245243A (en) * | 1991-06-12 | 1993-09-14 | Alps Electric Co., Ltd. | Ultrasonic motor with a friction component |
Also Published As
Publication number | Publication date |
---|---|
JPH0646780B2 (en) | 1994-06-15 |
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