CN102522907A - Imitation screen power supply with adjustable three-level - Google Patents
Imitation screen power supply with adjustable three-level Download PDFInfo
- Publication number
- CN102522907A CN102522907A CN2011103792545A CN201110379254A CN102522907A CN 102522907 A CN102522907 A CN 102522907A CN 2011103792545 A CN2011103792545 A CN 2011103792545A CN 201110379254 A CN201110379254 A CN 201110379254A CN 102522907 A CN102522907 A CN 102522907A
- Authority
- CN
- China
- Prior art keywords
- power supply
- imitation screen
- adjustable
- imitation
- switch
- 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
Images
Abstract
The invention relates to an imitation screen power supply with an adjustable three-level, which is particularly suitable to for being used for power supplies used in various scheduling imitation screens. The invention has the technical schemes that the imitation screen power supply with the adjustable three-level comprises a connecting terminal (1), a power supply transformer (2) and a rectifier bridge (3), wherein the connecting terminal is connected with the power supply transformer, an output of the power supply transformer is connected with the rectifier bridge, a power supply circuit is formed by capacitances, a current limiting resistance, triodes, a voltage-regulator diode, silicon rectifier diodes, switches and fuses, the switches and the silicon rectifier diodes are connected in parallel, the working of the silicon rectifier diodes is controlled through the switching on/off of the switches, and thus the output voltage of the power supply circuit can be adjusted. The imitation screen power supply with the adjustable three-level disclosed by the invention has the beneficial effects that the output voltage of the imitation screen power supply can be adjusted through the switching on/off of the switches, the adjustable three-level of the imitation screen power supply can be realized, and thus an imitation screen display device has a bright function, a normal function and a dark function. The imitation screen power supply with the adjustable three-level disclosed by the invention has the technical characteristic that the usage mode is flexible, is particularly suitable for being used for imitation screens in various using places, and is ideal.
Description
Technical field
The present invention relates to a kind of three grades of adjustable imitation screen power supplys, especially for being particularly useful for power supply used on the various Stimulated control screens.
Background technology
Imitation screen is the automation equipment of the indispensability of dispatching patcher, needs the field of dispatch control to obtain using widely at electric power system and other.Conventional analogue screen power supply does not possess the function of adjustment electric power output voltage.The subject matter that background technology exists is: can not change the imitation screen electric power output voltage according to user's request, realize the imitation screen display device bright, show slinkingly and show function.
Summary of the invention
The purpose of this invention is to provide a kind of three grades of adjustable imitation screen power supplys; The output voltage of adjustment imitation screen power supply realizes that three grades of imitation screen power supplys are adjustable, makes the imitation screen display have bright, normal, dark Presentation Function; Be applicable to various fields of employment, solve the problems referred to above that background technology exists.
Technical scheme of the present invention is: a kind of three grades of adjustable imitation screen power supplys; Comprise the binding post, power transformer, rectifier bridge, electric capacity, current-limiting resistance, triode, voltage stabilizing didoe, silicon rectifier diode, switch and the insurance that are installed in the imitation screen power shell; Binding post connects power transformer; Power transformer output connects rectifier bridge, and electric capacity, current-limiting resistance, triode, voltage stabilizing didoe, silicon rectifier diode, switch and insurance constitute power circuit, the parallelly connected setting with silicon rectifier diode of said switch; Closing, dividing through switch; The work of control silicon rectifier diode, and then the output voltage of adjustment power circuit, the brightness demonstration of the imitation screen display device that realization is connected with power circuit changes.
Two switches and two parallelly connected settings of silicon rectifier diode; Have three kinds of states: two switches are closed simultaneously, open simultaneously, closure another open; Three kinds of states adjust three kinds of different output voltage; Realize that three grades of imitation screen power supplys are adjustable, make the imitation screen display device have bright, normal, dark Presentation Function.
Good effect of the present invention: through the output voltage that closes, switch-dividing is adjusted the imitation screen power supply, realize that three grades of imitation screen power supplys are adjustable, make the imitation screen display device have bright, normal, dark Presentation Function.The present invention has occupation mode flexible technique characteristics, is very suitable for the imitation screen of various fields of employment, is a kind of desirable imitation screen power supply.
Description of drawings
Fig. 1 is an embodiment of the invention sketch map;
Among the figure: binding post 1,4, power transformer 2, rectifier bridge 3, capacitor C 1, C2, current-limiting resistance R, triode T1, T2, voltage stabilizing didoe D1, silicon rectifier diode D2, D3, K switch, K1, K2, insurance FU.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further specified through embodiment.
A kind of three grades of adjustable imitation screen power supplys; Comprise the binding post 1, power transformer 2, rectifier bridge 3, electric capacity, current-limiting resistance, triode, voltage stabilizing didoe, silicon rectifier diode, switch and the insurance that are installed in the imitation screen power shell; Binding post connects power transformer; Power transformer output connects rectifier bridge, and electric capacity, current-limiting resistance, triode, voltage stabilizing didoe, silicon rectifier diode, switch and insurance constitute power circuit, the parallelly connected setting with silicon rectifier diode of said switch; Closing, dividing through switch; The work of control silicon rectifier diode, and then the output voltage of adjustment power circuit, the brightness demonstration of the imitation screen display device that realization is connected with power circuit changes.
Two K switch 1, K2 and two silicon rectifier diode D2, the parallelly connected setting of D3; Have three kinds of states: two switches are closed simultaneously, open simultaneously, closure another open; Three kinds of states adjust three kinds of different output voltage; Realize that three grades of imitation screen power supplys are adjustable, make the imitation screen display device have bright, normal, dark Presentation Function.
Execution mode more specifically: in Fig. 1; Binding post 1,4 provides the input and output of working power; K switch connects insurance FU and gives power transformer 2 inputs; Power transformer 2 outputs connect rectifier bridge 3, connect capacitor C 1, C2 voltage stabilizing, connect current-limiting resistance R, triode T1 and T2, voltage stabilizing didoe D1, silicon rectifier diode D2 and D3 and K switch 1 and K2.
Voltage stabilizing didoe D1 selects 12V for use; Triode T2 selects silicone tube (it is 0.7V that the silicone tube joint is pressed) for use.
1. when K switch 1 is closed, K switch 2 is fashionable, imitation screen power supply output 12V-0.7V=11.3V;
2. when K switch 1 is closed, K switch 2 minutes or K switch 1 minute, K switch 2 are fashionable, imitation screen power supply output 12V-0.7V+0.7V=12V;
3. when K switch 1 minute, K switch 2 timesharing, the imitation screen power supply is exported 12V-0.7V+0.7V+0.7V=12.7V.
In sum, through the output voltage that closes, switch-dividing (K1, K2) is adjusted the imitation screen power supply, be respectively 11.3V, 12V, 12.7V, realize that three grades of imitation screen power supplys are adjustable, make the imitation screen display device have bright, normal, dark Presentation Function.
Claims (2)
1. one kind three grades adjustable imitation screen power supplys; It is characterized in that comprising the binding post (1), power transformer (2), rectifier bridge (3), electric capacity, current-limiting resistance, triode, voltage stabilizing didoe, silicon rectifier diode, switch and the insurance that are installed in the imitation screen power shell; Binding post connects power transformer; Power transformer output connects rectifier bridge, and electric capacity, current-limiting resistance, triode, voltage stabilizing didoe, silicon rectifier diode, switch and insurance constitute power circuit, the parallelly connected setting with silicon rectifier diode of said switch; Closing, dividing through switch; The work of control silicon rectifier diode, and then the output voltage of adjustment power circuit, the brightness demonstration of the imitation screen display device that realization is connected with power circuit changes.
2. a kind of three grade adjustable imitation screen power supplys according to claim 1; It is characterized in that two K switch 1, K2 and two silicon rectifier diode D2, the parallelly connected setting of D3; Have three kinds of states: two switches are closed simultaneously, open simultaneously, closure another open; Three kinds of states adjust three kinds of different output voltage, realize that three grades of imitation screen power supplys are adjustable, make the imitation screen display device have bright, normal, dark Presentation Function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103792545A CN102522907B (en) | 2011-11-25 | 2011-11-25 | Imitation screen power supply with adjustable three-level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103792545A CN102522907B (en) | 2011-11-25 | 2011-11-25 | Imitation screen power supply with adjustable three-level |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102522907A true CN102522907A (en) | 2012-06-27 |
| CN102522907B CN102522907B (en) | 2013-11-13 |
Family
ID=46293726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103792545A Expired - Fee Related CN102522907B (en) | 2011-11-25 | 2011-11-25 | Imitation screen power supply with adjustable three-level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102522907B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938956A (en) * | 2012-11-06 | 2013-02-20 | 保定天威集团有限公司 | Automatic regulation three-level luminance imitation screen light control device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384415A (en) * | 2001-04-29 | 2002-12-11 | 广达电脑股份有限公司 | Double-regulating back lighting controller |
| CN1412854A (en) * | 2001-10-10 | 2003-04-23 | 株式会社日立制作所 | Image display equipment |
| CN101404144A (en) * | 2008-11-10 | 2009-04-08 | 友达光电（苏州）有限公司 | Electronic device with automatic brightness adjustment function |
| CN101789218A (en) * | 2010-01-26 | 2010-07-28 | 南京Lg新港显示有限公司 | Light-adjusting method of light-emitting diode backlight |
-
2011
- 2011-11-25 CN CN2011103792545A patent/CN102522907B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384415A (en) * | 2001-04-29 | 2002-12-11 | 广达电脑股份有限公司 | Double-regulating back lighting controller |
| CN1412854A (en) * | 2001-10-10 | 2003-04-23 | 株式会社日立制作所 | Image display equipment |
| CN101404144A (en) * | 2008-11-10 | 2009-04-08 | 友达光电（苏州）有限公司 | Electronic device with automatic brightness adjustment function |
| CN101789218A (en) * | 2010-01-26 | 2010-07-28 | 南京Lg新港显示有限公司 | Light-adjusting method of light-emitting diode backlight |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938956A (en) * | 2012-11-06 | 2013-02-20 | 保定天威集团有限公司 | Automatic regulation three-level luminance imitation screen light control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102522907B (en) | 2013-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204598413U (en) | A kind of LED light adjusting circuit possessing multiple current and select | |
| CN103326458A (en) | Power supply switching circuit of external power supply and power supply by battery and switching method | |
| CN203721169U (en) | Brightness-adjusting device for display screen of household electrical appliance and household electrical appliance | |
| CN103917002A (en) | LED light modulation method and system | |
| CN102522907B (en) | Imitation screen power supply with adjustable three-level | |
| CN203378124U (en) | Projector LED light source drive module with single step-down converter | |
| CN204155441U (en) | Multifunctional projector remote controller | |
| CN202334347U (en) | Three-stage adjustable imitation screen power supply | |
| CN208538461U (en) | A kind of screen control circuit and mobile terminal | |
| CN207283875U (en) | A kind of power conditioning circuitry and LED light driving device | |
| CN201983081U (en) | Table lamp capable of automatically stabilizing brightness | |
| CN207924453U (en) | A kind of low standby power loss appliance terminal circuit | |
| CN202652084U (en) | Switch-power-supply digital-display voltage-adjustable controller | |
| CN211655843U (en) | Intelligent adjusting socket | |
| CN204302843U (en) | A kind of mu balanced circuit and voltage-stablizer | |
| CN205539811U (en) | TFT -LCD liquid crystal display panel's intelligent discharge circuit | |
| CN202363699U (en) | Digital power plugboard | |
| WO2017088306A1 (en) | Serial-connected alternating current power supply system | |
| CN107105178B (en) | TV set power | |
| CN205596091U (en) | Many level control circuit | |
| CN209055868U (en) | A kind of voltage-operated device and the transformer using it | |
| CN204069419U (en) | Sectional-regulated LED drive circuit and use the LED lamp of this drive circuit | |
| CN208350865U (en) | A kind of strong current generator | |
| CN204119616U (en) | Light-emitting component driving chip | |
| CN207269273U (en) | Light control console power-supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20131113 Termination date: 20141125 |
|
| EXPY | Termination of patent right or utility model |