CN201717798U - Liquid crystal display screen standby intelligent control circuit - Google Patents
Liquid crystal display screen standby intelligent control circuit Download PDFInfo
- Publication number
- CN201717798U CN201717798U CN2010201840121U CN201020184012U CN201717798U CN 201717798 U CN201717798 U CN 201717798U CN 2010201840121 U CN2010201840121 U CN 2010201840121U CN 201020184012 U CN201020184012 U CN 201020184012U CN 201717798 U CN201717798 U CN 201717798U
- Authority
- CN
- China
- Prior art keywords
- control circuit
- main power
- standby
- partly
- display screen
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The utility model relates to the technical field of electronic elements, in particular to a liquid crystal display screen standby intelligent control circuit comprising a PWM control part, and an AC input part, a rectification filter part, a B+ voltage part and a main power supply output part which are sequentially connected, and the PWM control part is connected with the main power supply output part; a main power supply relay part is connected between the AC input part and the rectification filter part, and the main power supply relay part is connected with an MCU part; and when in the standby state, the liquid crystal display screen standby intelligent control circuit can control the main power supply relay part through the MCU part and cut off the input of the AC input part, so that the standby power consumption is lower than 0.1W.
Description
Technical field
The utility model relates to display screen stand-by circuit technical field, refers in particular to a kind of LCDs standby intelligence control circuit.
Background technology
Prior liquid crystal display standby intelligence control circuit, as shown in Figure 1, it comprises AC importation, rectifying and wave-filtering part, B+ voltage segment, the main power source output that connects successively, the B+ voltage segment connects the accessory power supply part, accessory power supply partly connects the boost voltage output, PWM (Pulse Width Modulation, pulse-width modulation) control section control main power source output, the accessory power supply part provides VCC voltage for the PWM control section, and the main power source output provides power supply for display screen; This circuit is when the display screen standby, and stand-by power consumption is bigger, if reduce whole stand-by power consumption, makes stand-by power consumption less than 0.1W, and existing scheme is not realized.
Therefore, based on the defective of above-mentioned available liquid crystal display screen standby intelligence control circuit, need improve prior liquid crystal display standby intelligence control circuit.
The utility model content
The purpose of this utility model is to provide a kind of LCDs standby intelligence control circuit at the deficiencies in the prior art, and this LCDs standby intelligence control circuit can realize that stand-by power consumption is less than 0.1W.
For achieving the above object, the utility model is achieved through the following technical solutions:
Comprise PWM control section and the AC importation, rectifying and wave-filtering part, B+ voltage segment, the main power source output that connect successively, the PWM control section connects the main power source output; AC importation, rectification filtering part are connected with the main power relay part between dividing, and main power relay partly is connected with MCU (Micro Control Unit, micro-control unit) part.
Described MCU partly is connected with the standby power part, and the standby power part is connected with the AC importation.
Described MCU partly is connected with the led state display part.
Described MCU partly is connected with by key control section.
Described MCU partly is connected with the remote control control section.
The beneficial effects of the utility model are: AC importation, rectification filtering part are connected with the main power relay part between dividing, main power relay partly is connected with the MCU part, during standby, can partly control the main power relay part by MCU, cut off the input of AC importation, thereby realize that stand-by power consumption is less than 0.1W.
Description of drawings
Fig. 1 is the square frame principle schematic diagram of existing display screen power control circuit;
Fig. 2 is the square frame principle schematic diagram of control circuit of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
See Fig. 2, the utility model LCDs standby intelligence control circuit comprises: PWM control section and the AC importation, rectifying and wave-filtering part, B+ voltage segment, the main power source output that connect successively, and the PWM control section connects the main power source output; AC importation, rectification filtering part are connected with the main power relay part between dividing, and main power relay partly is connected with the MCU part; During standby, can partly control the main power relay part, cut off the input of AC importation, thereby realize that stand-by power consumption is less than 0.1W by MCU.
Described MCU partly is connected with the standby power part, and the standby power part is connected with the AC importation.
Described MCU partly is connected with the led state display part, and the led state display part can display working condition.
Described MCU partly is connected with by key control section, can pass through the button input control signal by key control section.
Described MCU partly is connected with the remote control control section, and remote control control section cocoa is realized the remote control input of control signal.
The utility model can come Remote by remote controller, makes whole holding state power consumption ultralow; Also can control, make whole holding state power consumption be lower than 0.1W by button.
Certainly, the embodiment of the above, it is preferred embodiments of the present utility model, and unrestricted the utility model practical range, so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and all should be included in the utility model claim.
Claims (5)
1. LCDs standby intelligence control circuit is characterized in that: it comprises PWM control section and the AC importation, rectifying and wave-filtering part, B+ voltage segment, the main power source output that connect successively, PWM control section connection main power source output; AC importation, rectification filtering part are connected with the main power relay part between dividing, and main power relay partly is connected with the MCU part.
2. LCDs standby intelligence control circuit according to claim 1, it is characterized in that: described MCU partly is connected with the standby power part, and the standby power part is connected with the AC importation.
3. LCDs standby intelligence control circuit according to claim 1, it is characterized in that: described MCU partly is connected with the led state display part.
4. LCDs standby intelligence control circuit according to claim 1, it is characterized in that: described MCU partly is connected with by key control section.
5. LCDs standby intelligence control circuit according to claim 1, it is characterized in that: described MCU partly is connected with the remote control control section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201840121U CN201717798U (en) | 2010-04-29 | 2010-04-29 | Liquid crystal display screen standby intelligent control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201840121U CN201717798U (en) | 2010-04-29 | 2010-04-29 | Liquid crystal display screen standby intelligent control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717798U true CN201717798U (en) | 2011-01-19 |
Family
ID=43463806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201840121U Expired - Fee Related CN201717798U (en) | 2010-04-29 | 2010-04-29 | Liquid crystal display screen standby intelligent control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201717798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735327A (en) * | 2020-12-31 | 2021-04-30 | 威创集团股份有限公司 | Power supply control circuit of LED all-in-one machine and LED all-in-one machine |
-
2010
- 2010-04-29 CN CN2010201840121U patent/CN201717798U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735327A (en) * | 2020-12-31 | 2021-04-30 | 威创集团股份有限公司 | Power supply control circuit of LED all-in-one machine and LED all-in-one machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103280191B (en) | LED backlight drive circuit, liquid crystal indicator and a kind of driving method | |
| CN204633601U (en) | A kind of adjustable constant-voltage constant | |
| CN203675385U (en) | LED backlight driving circuit capable of automatically adjusting switching frequency | |
| CN102520241A (en) | Three-phase charge-controlled electric energy meter based on resistance-capacitance voltage reduction and low-voltage direct-current/direct-current (DC/DC) power supply | |
| CN201717798U (en) | Liquid crystal display screen standby intelligent control circuit | |
| CN203584853U (en) | Intelligent energy-conservation control device used for electric fan | |
| CN201726327U (en) | Power-supply control circuit for large-size liquid crystal display | |
| CN202587188U (en) | Liquid crystal display television (LCD TV) power supply device for integrated multi-voltage output | |
| CN202975208U (en) | Power efficiency monitor | |
| CN102695320B (en) | Constant-current drive circuit | |
| CN202694056U (en) | Automatic power-off energy saving device for household appliances | |
| CN203086369U (en) | PFC boost circuit | |
| CN205792222U (en) | A kind of low power consumption control module based on public service terminal | |
| CN201717595U (en) | Alternating-current power failure sequential control protective circuit for power supply of TV set | |
| CN204787341U (en) | Solar energy water heater controller based on ARM | |
| CN203552659U (en) | Backlight time delay control system for liquid crystal screen | |
| CN202940895U (en) | Standby micro-power consumption LCD/LED TV power supply | |
| CN202067106U (en) | Energy-saving control device | |
| CN202930009U (en) | Liquid crystal display driving circuit | |
| CN201274175Y (en) | Energy-saving portable DVD player | |
| CN202799325U (en) | Intelligent sunset timing control device | |
| CN203166511U (en) | Simple single-live line remote control power supply circuit | |
| CN202025201U (en) | Low power consumption baking oven controller circuit | |
| CN203261521U (en) | LED switch power supply circuit | |
| CN207269273U (en) | Light control console power-supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20150429 |
|
| EXPY | Termination of patent right or utility model |