CN107257201A - TV set power controls circuit - Google Patents
TV set power controls circuit Download PDFInfo
- Publication number
- CN107257201A CN107257201A CN201710565271.5A CN201710565271A CN107257201A CN 107257201 A CN107257201 A CN 107257201A CN 201710565271 A CN201710565271 A CN 201710565271A CN 107257201 A CN107257201 A CN 107257201A
- Authority
- CN
- China
- Prior art keywords
- module
- triode
- pin
- resistance
- switching
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention provides TV set power control circuit, it includes PFC module, PFC module is connected with switching on and shutting down relay module, it also includes civil power input immunity module, current limit control module, power control module, civil power input immunity module is connected with PFC module, current limit control module is connected, current limit control module is connected with switching on and shutting down relay module, switching on and shutting down relay module is connected with power control module, described civil power input immunity module includes transformer, 4th pin of transformer is connected after being connected with first electric capacity one end with the 3rd pin of switching on and shutting down relay, the first electric capacity other end respectively with second electric capacity one end, transformer is connected, the second electric capacity other end is connected with the 4th pin and PFC module of switching on and shutting down relay respectively；Increased by this programme after corresponding module, with low, the good advantage of control effect of loss.
Description
Technical field
The present invention relates to family's electro-technical field, TV set power control circuit is referred in particular to.
Background technology
The effect of TV power supply circuit is that the 220 V alternating voltages for providing TV carry out transformation（Decompression）, then through whole
Stream, filtering, voltage stabilizing, obtain satisfactory stable DC voltage supply each several part circuit.So whether TV power supply circuit closes
Reason is directly connected to TV energy consumption.
The content of the invention
The good television set of low, control effect is lost it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of
Power control circuit.
To achieve the above object, technical scheme provided by the present invention is：TV set power controls circuit, and it includes
PFC module, PFC module is connected with switching on and shutting down relay module, and it also includes civil power input immunity module, Current limited Control
Module, power control module, immunity module is connected with PFC module, current limit control module is connected, current limliting control for civil power input
Molding block is connected with switching on and shutting down relay module, and switching on and shutting down relay module is connected with power control module, described city
Electricity input immunity module includes transformer, transformer the 2nd, 3 pin respectively with exchange electrical connection, the 4th pin of transformer and
First electric capacity one end is connected after being connected with the 3rd pin of switching on and shutting down relay, the 1st pin and the first electric capacity other end of transformer
It is connected after being connected with the 3rd pin of the current-limiting resistance control relay in current limit control module, first resistor one end, the first electricity
The resistance other end is connected with second resistance one end, 4th pin, first electricity of the second resistance other end with current-limiting resistance control relay
Hold one end to be connected, the first electric capacity other end is connected with second electric capacity one end, transformer respectively, second electric capacity other end difference
It is connected with the 4th pin and PFC module of switching on and shutting down relay；
Current limit control module includes the first photo-coupler, the first triode, the second triode, current-limiting resistance control relay,
Wherein, the pin of current-limiting resistance control relay the 2nd the 1st pin respectively with switching on and shutting down relay, PFC module are connected, current-limiting resistance
The pin of control relay the 1st is connected with switching on and shutting down relay module, and the 4th pin and 3rd resistor one end of the first photo-coupler connect
Connect, the 3rd resistor other end is connected with the 4th resistance one end, the first transistor base respectively, the 4th resistance other end successively with
It is connected after first triode emitter-base bandgap grading, the connection of the 5th resistance one end with the pin of current-limiting resistance control relay the 1st, the 5th resistance is another
End is connected with indicator lamp, and indicator lamp is connected with the pin of current-limiting resistance control relay the 2nd, the second transistor collector；First
3rd pin of photo-coupler is connected after being connected successively with the 3rd electric capacity one end, the 6th resistance one end with the second triode emitter-base bandgap grading, the
The three electric capacity other ends are connected with first diode one end, the second transistor base respectively, the first diode other end and first
Transistor collector is connected, and the 6th resistance other end is connected with the 7th resistance R8041 one end, the second transistor base respectively
Connect；
Power control module includes the 3rd triode, the 4th triode, the 5th triode, wherein, the emitter-base bandgap grading of the 3rd triode
Be connected with mu balanced circuit, mu balanced circuit is connected with switching on and shutting down relay module, PFC module, the colelctor electrode of the 3rd triode with
The emitter-base bandgap grading of 4th triode connects and connects output, the output of the colelctor electrode of the 4th triode, and the base stage of the 3rd triode passes through the
Eight resistance are connected with switch, and the base stage of the 4th triode is connected by the 9th resistance with the second photo-coupler, the second photo-coupler
It is connected with the 5th triode.
This programme is after using said system, and the mould not being described in detail uses market custom circuit structure, by this
After scheme increase corresponding module, with low, the good advantage of control effect of loss.
Brief description of the drawings
Fig. 1 is circuit theory diagrams of the invention.
Embodiment
With reference to all accompanying drawings, the invention will be further described, and presently preferred embodiments of the present invention is：Referring to accompanying drawing 1,
TV set power control circuit described in the present embodiment includes PFC module, and PFC module is connected with switching on and shutting down relay module
Connect, it also includes civil power input immunity module, current limit control module, power control module, civil power input immunity module
It is connected with PFC module, current limit control module is connected, current limit control module is connected with switching on and shutting down relay module, switchs
Machine relay module is connected with power control module, and described civil power input immunity module includes transformer L8003, becomes
Depressor L8003 the 2nd, 3 pin respectively with exchanging electrical connection, transformer L8003 the 4th pin is connected with first electric capacity C8007 one end
Connect the 3rd pin afterwards with switching on and shutting down relay RLY8001 to be connected, transformer L8003 the 1st pin and the first electric capacity C8007 is another
Hold the 3rd pin, first resistor R8009 mono- with the current-limiting resistance control relay RLY8002 in current limit control module after being connected
End is connected, and the first resistor R8009 other ends are connected with second resistance R8010 one end, the second resistance R8010 other ends and limit
Leakage resistance control relay RLY8002 the 4th pin, first electric capacity C8009 one end are connected, the first electric capacity C8009 other ends point
Be not connected with second electric capacity C8001 one end, transformer L8004, the second electric capacity C8001 other ends respectively with switching on and shutting down relay
RLY8001 the 4th pin and PFC module is connected；
Current limit control module includes the first photo-coupler IC8002, the first triode Q8005, the second triode Q8008, current limliting
Resistance control relay RLY8002, wherein, the pin of current-limiting resistance control relay RLY8002 the 2nd respectively with switching on and shutting down relay
RLY8001 the 1st pin, PFC module are connected, the pin of current-limiting resistance control relay RLY8002 the 1st and switching on and shutting down relay module
It is connected, the first photo-coupler IC8002 the 4th pin is connected with 3rd resistor R8034 one end, the 3rd resistor R8034 other ends point
It is not connected with the 4th resistance R8033 one end, the first triode Q8005 base stages, the 4th resistance R8033 other ends are successively with first
It is connected after triode Q8005 emitter-base bandgap gradings, the connection of the 5th resistance R8029 one end with the pin of current-limiting resistance control relay RLY8002 the 1st
Connect, the 5th resistance R8029 other ends are connected with indicator lamp LED8001, indicator lamp LED8001 and current-limiting resistance control relay
The pin of RLY8002 the 2nd, the second triode Q8008 colelctor electrodes are connected；First photo-coupler IC8002 the 3rd pin is successively with the 3rd
It is connected after electric capacity C8022 one end, the connection of the 6th resistance R8050 one end with the second triode Q8008 emitter-base bandgap gradings, the 3rd electric capacity
The C8022 other ends are connected with first diode D8017 one end, the second triode Q8008 base stages respectively, the first diode
The D8017 other ends are connected with the first triode Q8005 colelctor electrodes, the 6th resistance R8050 other ends respectively with the 7th resistance
R8041 one end, the second triode Q8008 base stages are connected；
Power control module includes the 3rd triode Q8010, the 4th triode Q8011, the 5th triode Q8015, wherein, the
Three triode Q8010 emitter-base bandgap grading is connected with mu balanced circuit IC8009, mu balanced circuit IC8009 and switching on and shutting down relay module, PFC
Module is connected, and the 3rd triode Q8010 colelctor electrode is connected with the 4th triode Q8011 emitter-base bandgap grading and connects output, and the 4th
Triode Q8011 colelctor electrode output, the 3rd triode Q8010 base stage is connected by the 8th resistance R8071 with switch, and the 4th
Triode Q8011 base stage is connected by the 9th resistance R8072 with the second photo-coupler IC8008, the second photo-coupler IC8008
It is connected with the 5th triode Q8015.
After AC220V civil powers are inputted, after filtering out disturbing pulse through switch relay RLY8001 controls and anti-jamming circuit,
Again through full-bridge rectification, about 230V pulsating volage, feeding PFC module and switching on and shutting down relay module, PFC module and switch are produced
Machine relay module is existing market conventional structure, by inputting current limliting after PFC module and the control of switching on and shutting down relay module
Q8005, Q8008 conducting are controlled by photo-coupler IC8002 in control module, current limit control module, relay RLY8002 inhales
Close, by current-limiting resistance short circuit, reduction start loss is low level after start, and Q8010 conductings are made by photo-coupler IC8008
Q8011 is turned on there is provided VCC-S voltages, and related small signal process circuit is powered and starts work, into open state.This
The mould that embodiment is not described in detail uses market custom circuit structure, is increased by the present embodiment after corresponding module, had
Low, the good advantage of control effect is lost.
Embodiment described above is only the preferred embodiments of the invention, and the practical range of the present invention is not limited with this,
Therefore the change that all shape, principles according to the present invention are made, it all should cover within the scope of the present invention.
Claims (1)
1. TV set power controls circuit, it includes PFC module, and PFC module is connected with switching on and shutting down relay module, and it is special
Levy and be：It also includes civil power input immunity module, current limit control module, power control module, and civil power input is anti-interference
Module is connected with PFC module, current limit control module is connected, and current limit control module is connected with switching on and shutting down relay module,
Switching on and shutting down relay module is connected with power control module, and described civil power input immunity module includes transformer
（L8003）, transformer（L8003）The 2nd, 3 pin are respectively with exchanging electrical connection, transformer（L8003）The 4th pin and the first electric capacity
（C8007）One end be connected after with switching on and shutting down relay（RLY8001）The 3rd pin be connected, transformer（L8003）The 1st pin
With the first electric capacity（C8007）The other end be connected after with the current-limiting resistance control relay in current limit control module（RLY8002）
The 3rd pin, first resistor（R8009）One end is connected, first resistor（R8009）The other end and second resistance（R8010）One end
It is connected, second resistance（R8010）The other end and current-limiting resistance control relay（RLY8002）The 4th pin, the first electric capacity
（C8009）One end is connected, the first electric capacity（C8009）The other end respectively with the second electric capacity（C8001）One end, transformer
（L8004）It is connected, the second electric capacity（C8001）The other end respectively with switching on and shutting down relay（RLY8001）The 4th pin and PFC
Module is connected；
Current limit control module includes the first photo-coupler（IC8002）, the first triode（Q8005）, the second triode
（Q8008）, current-limiting resistance control relay（RLY8002）, wherein, current-limiting resistance control relay（RLY8002）2nd pin is distinguished
With switching on and shutting down relay（RLY8001）The 1st pin, PFC module be connected, current-limiting resistance control relay（RLY8002）1st pin
It is connected with switching on and shutting down relay module, the first photo-coupler（IC8002）The 4th pin and 3rd resistor（R8034）One end connects
Connect, 3rd resistor（R8034）The other end respectively with the 4th resistance（R8033）One end, the first triode（Q8005）Base stage is connected
Connect, the 4th resistance（R8033）The other end successively with the first triode（Q8005）Emitter-base bandgap grading, the 5th resistance（R8029）After the connection of one end
With current-limiting resistance control relay（RLY8002）1st pin is connected, the 5th resistance（R8029）The other end and indicator lamp
（LED8001）It is connected, indicator lamp（LED8001）With current-limiting resistance control relay（RLY8002）2nd pin, the second triode
（Q8008）Colelctor electrode is connected；First photo-coupler（IC8002）The 3rd pin successively with the 3rd electric capacity（C8022）One end, the 6th
Resistance（R8050）With the second triode after the connection of one end（Q8008）Emitter-base bandgap grading is connected, the 3rd electric capacity（C8022）The other end is distinguished
With the first diode（D8017）One end, the second triode（Q8008）Base stage is connected, the first diode（D8017）The other end with
First triode（Q8005）Colelctor electrode is connected, the 6th resistance（R8050）The other end respectively with the 7th resistance（R8041）One end,
Second triode（Q8008）Base stage is connected；
Power control module includes the 3rd triode（Q8010）, the 4th triode（Q8011）, the 5th triode（Q8015）,
Wherein, the 3rd triode（Q8010）Emitter-base bandgap grading and mu balanced circuit（IC8009）Connection, mu balanced circuit（IC8009）With switching on and shutting down after
Electrical appliance module, PFC module are connected, the 3rd triode（Q8010）Colelctor electrode and the 4th triode（Q8011）Emitter-base bandgap grading connection
And connect output, the 4th triode（Q8011）Colelctor electrode output, the 3rd triode（Q8010）Base stage pass through the 8th resistance
（R8071）It is connected with switch, the 4th triode（Q8011）Base stage pass through the 9th resistance（R8072）With the second photo-coupler
（IC8008）Connection, the second photo-coupler（IC8008）With the 5th triode（Q8015）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710565271.5A CN107257201A (en) | 2017-07-12 | 2017-07-12 | TV set power controls circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710565271.5A CN107257201A (en) | 2017-07-12 | 2017-07-12 | TV set power controls circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107257201A true CN107257201A (en) | 2017-10-17 |
Family
ID=60024931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710565271.5A Pending CN107257201A (en) | 2017-07-12 | 2017-07-12 | TV set power controls circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107257201A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612949A (en) * | 2021-08-25 | 2021-11-05 | 深圳康佳电子科技有限公司 | Direct-current power supply switching circuit and television |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103874U (en) * | 1990-12-11 | 1992-05-06 | 国营东乐无线电器材厂电声分厂 | Remote-controlled power breaker for colour tv set |
| US5920186A (en) * | 1997-05-14 | 1999-07-06 | Sony Corporation | In-rush current control circuitry |
| US6995807B2 (en) * | 2001-11-02 | 2006-02-07 | Sony Corporation | Micro-power stand-by mode |
| CN101345482A (en) * | 2008-08-22 | 2009-01-14 | 戴俊 | Composite power supply |
-
2017
- 2017-07-12 CN CN201710565271.5A patent/CN107257201A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103874U (en) * | 1990-12-11 | 1992-05-06 | 国营东乐无线电器材厂电声分厂 | Remote-controlled power breaker for colour tv set |
| US5920186A (en) * | 1997-05-14 | 1999-07-06 | Sony Corporation | In-rush current control circuitry |
| US6995807B2 (en) * | 2001-11-02 | 2006-02-07 | Sony Corporation | Micro-power stand-by mode |
| CN101345482A (en) * | 2008-08-22 | 2009-01-14 | 戴俊 | Composite power supply |
Non-Patent Citations (1)
| Title |
|---|
| 吴义灵 等: "电视发射机开关电源的原理与维修", 《中国有线电视》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612949A (en) * | 2021-08-25 | 2021-11-05 | 深圳康佳电子科技有限公司 | Direct-current power supply switching circuit and television |
| CN113612949B (en) * | 2021-08-25 | 2024-04-19 | 深圳康佳电子科技有限公司 | DC power supply switching circuit and television |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20171017 |