JPS5520067A - Power control circuit for television picture receiver - Google Patents
Power control circuit for television picture receiverInfo
- Publication number
- JPS5520067A JPS5520067A JP9343078A JP9343078A JPS5520067A JP S5520067 A JPS5520067 A JP S5520067A JP 9343078 A JP9343078 A JP 9343078A JP 9343078 A JP9343078 A JP 9343078A JP S5520067 A JPS5520067 A JP S5520067A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- load
- charge
- detection
- 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 reduce the power loss as well as to ensure the steady operation of the load by turning off the switch circuit through detection of the fact that the charge voltage of the capacitor becomes lower than the rectification output voltage of the flyback transformer. CONSTITUTION:Output voltage V11 obtained through rectification of the commercial AC power source is charged by capacitor C1, and the change voltage detection circuit in control circuit 25 detects the fact that the charge voltage has reached the fixed level. With the detection signal of the charge detection circuit, switch circuit 22 supplies the charge voltage of C1 to the load. Here in case the charge voltage of C1 becomes lower than voltage V22 of terminal 24 which rectified the output horizontal pulse supplied from the flyback transformer, the detection circuit in circuit 25 detects this to turn off circuit 22 as well as supply voltage V22 to the load via output terminal 23. Thus the power loss can be reduced, ensuring the steady operation of the load.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9343078A JPS5520067A (en) | 1978-07-31 | 1978-07-31 | Power control circuit for television picture receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9343078A JPS5520067A (en) | 1978-07-31 | 1978-07-31 | Power control circuit for television picture receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5520067A true JPS5520067A (en) | 1980-02-13 |
JPS6142906B2 JPS6142906B2 (en) | 1986-09-24 |
Family
ID=14082083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9343078A Granted JPS5520067A (en) | 1978-07-31 | 1978-07-31 | Power control circuit for television picture receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5520067A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5859344A (en) * | 1981-10-05 | 1983-04-08 | Toyota Motor Corp | Variable venturi type carburettor |
JPS5879376A (en) * | 1981-11-06 | 1983-05-13 | Matsushita Electric Ind Co Ltd | Power supply circuit |
-
1978
- 1978-07-31 JP JP9343078A patent/JPS5520067A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5859344A (en) * | 1981-10-05 | 1983-04-08 | Toyota Motor Corp | Variable venturi type carburettor |
JPH0228706B2 (en) * | 1981-10-05 | 1990-06-26 | Toyota Motor Co Ltd | |
JPS5879376A (en) * | 1981-11-06 | 1983-05-13 | Matsushita Electric Ind Co Ltd | Power supply circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS6142906B2 (en) | 1986-09-24 |
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