JPS5711580A - Constant voltage power supply circuit for television picture - Google Patents
Constant voltage power supply circuit for television pictureInfo
- Publication number
- JPS5711580A JPS5711580A JP8614880A JP8614880A JPS5711580A JP S5711580 A JPS5711580 A JP S5711580A JP 8614880 A JP8614880 A JP 8614880A JP 8614880 A JP8614880 A JP 8614880A JP S5711580 A JPS5711580 A JP S5711580A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- switching
- output
- power supply
- supply circuit
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
- H04N3/185—Maintaining dc voltage constant
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Details Of Television Scanning (AREA)
Abstract
PURPOSE:To make the size of receiver small with a simple circuit constitution and to reduce the power consumption, by controlling the ON-time of a switching transistor in response to a load and an input voltage and stabilizing the output voltage. CONSTITUTION:A boost-up winding 1 is wound to a horizontal output transformer 33 so that a voltage is superimposed on an unregulated DC input voltage at scanning, and a switching circuit is formed with a diode 2 and a transistor TR3 in series connection with the winding. On the other hand, the reference voltage level by a Zener diode 9 and the output level of an output voltage terminal are compared and a control pulse in pulse width modulation is produced in synchronizing with the horizontal synchronizing frequency, by a control pulse generating circuit 8. A TR4 controls switching between the base and the emitter of the TR3 controlled with this pulse. Thus, the base current of the TR3 is shunted with the TR4 for switching control of the TR3 to stabilize the output voltage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8614880A JPS5711580A (en) | 1980-06-24 | 1980-06-24 | Constant voltage power supply circuit for television picture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8614880A JPS5711580A (en) | 1980-06-24 | 1980-06-24 | Constant voltage power supply circuit for television picture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5711580A true JPS5711580A (en) | 1982-01-21 |
Family
ID=13878646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8614880A Pending JPS5711580A (en) | 1980-06-24 | 1980-06-24 | Constant voltage power supply circuit for television picture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5711580A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0411791U (en) * | 1990-05-23 | 1992-01-30 | ||
US5104189A (en) * | 1987-09-21 | 1992-04-14 | Nissan Motor Co., Ltd. | Reclining seat for motor vehicle |
JPH04207355A (en) * | 1990-11-29 | 1992-07-29 | Sharp Corp | Stabilized power supply circuit |
JPH0583936A (en) * | 1991-09-20 | 1993-04-02 | Sharp Corp | Stabilized power supply circuit |
-
1980
- 1980-06-24 JP JP8614880A patent/JPS5711580A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5104189A (en) * | 1987-09-21 | 1992-04-14 | Nissan Motor Co., Ltd. | Reclining seat for motor vehicle |
JPH0411791U (en) * | 1990-05-23 | 1992-01-30 | ||
JPH04207355A (en) * | 1990-11-29 | 1992-07-29 | Sharp Corp | Stabilized power supply circuit |
JPH0583936A (en) * | 1991-09-20 | 1993-04-02 | Sharp Corp | Stabilized power supply circuit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4079295A (en) | Power supply arrangement with minimum interaction between plural loads | |
ES8204896A1 (en) | Regulated switching mode power supply device, combined with a line deflection circuit of a television receiver supplied by the device. | |
JPS5532428A (en) | Switching regulator | |
GB1535100A (en) | Controlling voltage converters | |
US4118739A (en) | Switching regulator for television receiver for generating a stabilized D.C. supply voltage for operating the various TV circuits | |
GB1040759A (en) | Improvements in or relating to electric low-pass filter circuits for smoothing direct current | |
JP2559282B2 (en) | Switch mode power supply | |
JP2783286B2 (en) | Switching power supply circuit device | |
JPS5711580A (en) | Constant voltage power supply circuit for television picture | |
US5239453A (en) | DC to DC converter employing a free-running single stage blocking oscillator | |
GB1536404A (en) | Switched-mode power supply | |
US3967182A (en) | Regulated switched mode multiple output power supply | |
SE8406174L (en) | TELEVISION DEVICING CIRCUIT WITH RASTER-WIDE STABILIZATION | |
GB1473510A (en) | ||
US4000441A (en) | Horizontal deflection circuit for television receivers having an auxiliary power supply | |
KR910008723Y1 (en) | Control circuit for stand by-electrical source | |
JPS57162966A (en) | Separately-excited dc/dc converter circuit | |
ATE26512T1 (en) | SYNCHRONIZED SWITCHING POWER SUPPLY WITH MAINS SEPARATE HORIZONTAL POWER AMPLIFIER CIRCUIT IN TELEVISION RECEIVERS. | |
JPS5510625A (en) | Direct-current regulated power supply | |
KR890006528Y1 (en) | Circuits of switching mode powersupply | |
JPS55141973A (en) | Control system of switching power supply device | |
KR890005239B1 (en) | Automatic voltage regulator circuit | |
JPS5656179A (en) | Ac generator | |
JPS57199020A (en) | Constant voltage power supply circuit | |
KR920008529Y1 (en) | Circuit for controlling horizontal oscillation in tv |