CN201444715U - Indicating lamp control circuit and television with circuit - Google Patents
Indicating lamp control circuit and television with circuit Download PDFInfo
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- CN201444715U CN201444715U CN2009200315608U CN200920031560U CN201444715U CN 201444715 U CN201444715 U CN 201444715U CN 2009200315608 U CN2009200315608 U CN 2009200315608U CN 200920031560 U CN200920031560 U CN 200920031560U CN 201444715 U CN201444715 U CN 201444715U
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- power supply
- indicating lamp
- standby
- indicator light
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Abstract
The utility model discloses an indicating lamp control circuit and a television with the circuit. The indicating lamp control circuit comprises a standby power supply, a startup power supply and a standby indicating lamp, wherein the positive electrode of the standby indicating lamp is connected with the standby power supply and the negative electrode thereof is connected with the startup power supply; and the amplitude of the startup power supply is larger than that of the standby power supply. The utility model adopts a pure hardware circuit to design the indicating lamp control circuit, not only the circuit structure is simple, the hardware cost is low and the reliability is high, but also the software design is not needed, thus eliminating the dependency to a CPU, saving port resources of the CPU and reducing the cost of the software design. The indicating lamp control circuit not only is applicable to any of the existing television products, but also is more convenient to change the circuit for electronic products without state indicating function, does not change and debug software and is easier to implement.
Description
Technical field
The utility model belongs to indicator light control circuit technical field, specifically, relates to a kind of hardware circuit design that the light on and off of double-colored or monochromatic indicator light are controlled and adopts the designed television set of described indicator light control circuit.
Background technology
Present television set all is to adopt monochrome or bi-colour LED to come television set present located operating state is indicated usually.For the television set that adopts monochromatic indicator light design, generally all being that the control indicator light is luminous represents the television set standby, and the control indicator light extinguishes represents that television set changes the start running status over to.And for the television set that adopts the bi-colour LED design, then generally all be the luminous residing different operating state of television set of representing of indicator light by the control different colours.Such as: when television set was in holding state, it was luminous to control red standby indicating lamp; And when television set changed the start running status over to, then control blueness is started shooting, and indicator light is luminous indicated.
For present indicator light control circuit, all be to adopt the software control mode to come the light on and off of indicator light are controlled.As shown in Figure 1, when television set is in holding state, CPU output low level LED1 signal, high level LED2 signal, control triode Q45 ends, triode Q46 conducting, thereby luminous, the blue start indicator light of red standby indicating lamp LED-R LED-G is extinguished; When television set is in the start running status, CPU output high level LED1 signal, low level LED2 signal, control triode Q45 conducting, triode Q46 end, and then making that red standby indicating lamp LED-R extinguishes, blue start indicator light LED-G is luminous, the expression television set changes the start running status over to by standby.
This traditional indicator light control circuit needs the CPU of television set inside to participate in control, not only needs the software of CPU inside is designed, but also need take the port resource of CPU, causes the design cost of software and hardware higher.Particularly for those cpu port resources CRT television set at full stretch, circuit design is difficulty more.
The utility model content
The utility model needs the software matching design to cause taking cpu port resource, problem that design cost is high in order to solve existing indicator light control mode, a kind of brand-new indicator light Circuit Design mode is provided, by adopting pure hardware circuit the light on and off of indicator light are controlled, thereby broken away from dependence to CPU, design cost is with low, and the circuit change easily.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of indicator light control circuit comprises standby power, start power supply and standby indicating lamp; The positive pole of described standby indicating lamp connects standby power, and negative pole connects the start power supply; The amplitude of described start power supply is greater than the amplitude of standby power.
Further, other circuit is impacted, the negative pole of described standby indicating lamp is connected described start power supply by a diode for fear of standby power, and by current-limiting resistance ground connection; Wherein, the negative electrode of described diode connects the negative pole of standby indicating lamp, and the anode of described diode connects the start power supply.
Further again, described diode can be replaced with the light-emitting diode that color is different from standby indicating lamp, with as the start indicator light, the open state of equipment is indicated.
Further again, described standby indicating lamp can adopt light-emitting diode to realize.
When if the indicator light of employing except that light-emitting diode designs standby indicating lamp and start indicator light control circuit, for fear of standby power other circuit is impacted, the negative pole of described standby indicating lamp can be connected described start power supply by the start indicator light, and by current-limiting resistance ground connection; Wherein, the negative pole of described start indicator light connects the negative pole of standby indicating lamp, and the positive pole of start indicator light connects the start power supply.
Based on above-mentioned indicator light control circuit structure, the utility model also provides a kind of television set that adopts described indicator light Circuit Design, be connected with standby power by positive pole standby indicating lamp, the negative pole of standby indicating lamp is connected with the start power supply, and then utilize the standby power of TV set power plate output and amplitude to come standby indicating lamp is controlled greater than the start power supply of standby power, realized that thus standby indicating lamp is luminous when television set is in holding state, and the purpose of design that standby indicating lamp is extinguished when television set is in open state.
Compared with prior art, advantage of the present utility model and good effect are: the utility model adopts pure hardware circuit to design the indicator light control circuit, not only circuit structure is simple, hardware cost is low, the reliability height, and need not to carry out software design, thereby dependence broken away to CPU, save the port resource of CPU, reduced the software design cost.Indicator light control circuit of the present utility model is not only applicable in the tv product of present any type, and there is not the electronic product of state deixis for those, circuit is changed convenient, need not carry out software change and debugging, and it is more easy to implement.
After reading the detailed description of the utility model execution mode in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the circuit theory diagrams of a kind of embodiment of existing indicator light control circuit;
Fig. 2 is the circuit theory diagrams of a kind of embodiment of the indicator light control circuit that proposes of the utility model;
Fig. 3 is the circuit theory diagrams of another embodiment of the indicator light control circuit that proposes of the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.
The software and hardware of indicator light control circuit abandoning tradition of the present utility model cooperates control model, a kind of brand-new pure hardware circuit design has been proposed, by standby indicating lamp being connected between standby power and the start power supply, utilize the standby power and the start power supply of different amplitudes to come the light on and off of indicator light are controlled, thereby under the prerequisite that guarantees correct indication, avoided indicator light circuit taking to the cpu port resource, make the design of hardware and software of electronic product be more prone to, design cost is minimized.
Be example below with the television set, elaborate the concrete composition structure and the operation principle thereof of described indicator light control circuit by two specific embodiments.
Embodiment one, and referring to shown in Figure 2, present embodiment is that example describes with red light emitting diodes VD001 as standby indicating lamp.
The direct current start power supply that just produces behind the direct current standby power of selection TV set power plate output and the television boot-strap designs the indicator light control circuit of present embodiment, and the amplitude of selected start power supply should be greater than the amplitude of standby power.As shown in Figure 2, can select+5V standby power B1 and+12V start power supply B2 designs.Certainly, described start power supply B2 also can adopt+9V ,+18V or+the direct current start power supply of other amplitude of power panels such as 24V output realizes that present embodiment does not specifically limit this.
The anode of light-emitting diode VD001 is connected standby power B1, the negative electrode of light-emitting diode VD001 connects start power supply B2, when television set is in holding state, because standby power B1 existence, and start power supply B2 does not also set up, therefore, electric current flow to start power supply B2 from standby power B1 through light-emitting diode VD001, and by start power supply B2 ground connection, constitutes current supply circuit, light-emitting diode VD001 sends ruddiness, the current holding state that is in of indication TV machine.And when television set changes open state over to by holding state, standby power B1 and start power supply B2 exist, because the amplitude of start power supply B2 is greater than the amplitude of standby power B1, thus make light-emitting diode VD001 oppositely by and extinguish, the indication TV machine enters open state.
In order to prevent that standby power B1 from impacting other circuit of television set inside, present embodiment is preferably set up a diode VD002 between the negative electrode of light-emitting diode VD001 and start power supply B2.Specifically, the negative electrode of described diode VD002 can be connected with the negative electrode of light-emitting diode VD001, and by current-limiting resistance R001 ground connection, with the anode connection Switching Power Supply B2 of diode VD002.So, when the television set standby, start power supply B2 disappears, and diode VD002 oppositely ends, and the electric current of standby power B1 output makes the luminous indication of light-emitting diode VD001 through light-emitting diode VD001 and current-limiting resistance R001 ground connection.And when television set was in open state, start power supply B2 set up, control diode VD002 conducting.At this moment, cathode voltage V=VB2-0.7V=12V-0.7V=11.3V＞5V of light-emitting diode VD001, therefore, oppositely by extinguishing, the indication TV machine enters open state to light-emitting diode VD001.
Resistance by change current-limiting resistance R001 is the brightness of scalable light-emitting diode VD001.
The monochromatic indicator light circuit of present embodiment can be realized the monochromatic indicating effect that standby red light, start are gone out, and generally is applied in the CRT television set.Certainly, also can adopt the light-emitting diode of other color to indicate, present embodiment is not limited in above giving an example.
Certainly, described standby indicating lamp also can adopt the indicator light of other type except that light-emitting diode to design, at this moment, only need the positive pole of standby indicating lamp is connected with standby power B1, negative pole connects start power supply B2 or connects start power supply B2 by diode VD002, and gets final product by current-limiting resistance R001 ground connection.Its operation principle is the same, and present embodiment is no longer given unnecessary details at this.
Embodiment two, and referring to shown in Figure 3, present embodiment is that example describe as standby indicating lamp, with blue LED VD003 as the start indicator light with red light emitting diodes VD001.
The anode of red light emitting diodes VD001 is connected with standby power B1, and negative electrode connects the negative electrode of blue LED VD003, and connects start power supply B2 by the anode of blue LED VD003.After described start power supply B2 is television boot-strap, the DC power supply of power panel output, its amplitude should be higher than the amplitude of selected standby power B1.
Still with+5V standby power B1 and+12V start power supply B2 is that example describes.The negative electrode of red light emitting diodes VD001 and blue LED VD003 is passed through current-limiting resistance R001 ground connection.When television set was in holding state, because standby power B1 exists, start power supply B2 disappeared, and therefore, red light emitting diodes VD001 conducting is luminous, and blue LED VD003 is by extinguishing the current holding state that is in of indication TV machine.After television set changes open state over to from holding state, because standby power B1 and start power supply B2 exist, and the amplitude of start power supply B2 is greater than the amplitude of standby power B1, therefore, make that blue LED VD003 conducting is luminous, and red light emitting diodes VD001 is by extinguishing, thereby realized the accurate indication to the television boot-strap state.
Can realize adjusting by the resistance that changes current-limiting resistance R001 to light-emitting diode VD001 and VD003 brightness.
The bi-colour LED circuit of present embodiment can be realized the blue lamp of starting shooting, the double-colored indicating effect of standby red light.Certainly, also can adopt the light-emitting diode of other color to carry out the double-colored indication of standby and start, present embodiment be not limited in above for example.
Certainly, described standby indicating lamp and start indicator light also can adopt the indicator light of other type except that light-emitting diode to design, only need the positive pole of standby indicating lamp is connected with standby power B1, the positive pole of start indicator light is connected with start power supply B2, and the negative pole with standby indicating lamp and start indicator light gets final product by current-limiting resistance R001 ground connection then.Its operation principle is the same, and present embodiment is no longer given unnecessary details at this.
Described standby power B1 and start power supply B2 can specifically select according to the concrete condition of electronic product, as long as follow the amplitude of the conduction voltage drop sum of the amplitude of standby power B1 and indicator light less than start power supply B2, present embodiment is not limited in above giving an example.
Indicator light control circuit of the present utility model need not to take cpu port, particularly to the less television set of this cpu port resource of CRT TV, can save down cpu resource and realize other function.
Certainly, indicator light control circuit of the present utility model is equally applicable to except that television set other and need carries out in the electronic product of state indication.
Should be noted that; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example; variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection range of the present utility model.
Claims (10)
1. an indicator light control circuit comprises standby power, start power supply and standby indicating lamp; It is characterized in that: the positive pole of described standby indicating lamp connects standby power, and negative pole connects the start power supply; The amplitude of described start power supply is greater than the amplitude of standby power.
2. indicator light control circuit according to claim 1 is characterized in that: the negative pole of described standby indicating lamp connects described start power supply by a diode, and by current-limiting resistance ground connection; Wherein, the negative electrode of described diode connects the negative pole of standby indicating lamp, and the anode of described diode connects the start power supply.
3. indicator light control circuit according to claim 2 is characterized in that: described diode is the light-emitting diode that color is different from standby indicating lamp.
4. according to each described indicator light control circuit in the claim 1 to 3, it is characterized in that: described standby indicating lamp is a light-emitting diode.
5. indicator light control circuit according to claim 1 is characterized in that: the negative pole of described standby indicating lamp connects described start power supply by the start indicator light, and by current-limiting resistance ground connection; Wherein, the negative pole of described start indicator light connects the negative pole of standby indicating lamp, and the positive pole of start indicator light connects the start power supply.
6. a television set comprises standby power, start power supply and standby indicating lamp; It is characterized in that: the positive pole of described standby indicating lamp connects standby power, and negative pole connects the start power supply; The amplitude of described start power supply is greater than the amplitude of standby power.
7. television set according to claim 6 is characterized in that: the negative pole of described standby indicating lamp connects described start power supply by a diode, and by current-limiting resistance ground connection; Wherein, the negative electrode of described diode connects the negative pole of standby indicating lamp, and the anode of described diode connects the start power supply.
8. television set according to claim 7 is characterized in that: described diode is the light-emitting diode that color is different from standby indicating lamp.
9. according to each described television set in the claim 6 to 8, it is characterized in that: described standby indicating lamp is a light-emitting diode.
10. television set according to claim 6 is characterized in that: the negative pole of described standby indicating lamp connects described start power supply by the start indicator light, and by current-limiting resistance ground connection; Wherein, the negative pole of described start indicator light connects the negative pole of standby indicating lamp, and the positive pole of start indicator light connects the start power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200315608U CN201444715U (en) | 2009-08-05 | 2009-08-05 | Indicating lamp control circuit and television with circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200315608U CN201444715U (en) | 2009-08-05 | 2009-08-05 | Indicating lamp control circuit and television with circuit |
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| Publication Number | Publication Date |
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| CN201444715U true CN201444715U (en) | 2010-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200315608U Expired - Fee Related CN201444715U (en) | 2009-08-05 | 2009-08-05 | Indicating lamp control circuit and television with circuit |
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| CN (1) | CN201444715U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123543A (en) * | 2010-11-12 | 2011-07-13 | 康佳集团股份有限公司 | Indicating lamp control circuit of television and television |
| CN103257915A (en) * | 2013-05-21 | 2013-08-21 | 北京小米科技有限责任公司 | Method and device for providing operation state of software of display equipment |
| CN103823779A (en) * | 2014-01-24 | 2014-05-28 | 江苏银河电子股份有限公司 | Automatic switchover serial communication and remote control communication control circuit |
| US10477632B2 (en) | 2014-12-10 | 2019-11-12 | Interdigital Ce Patent Holdings | Indicator circuit and apparatus using the same |
-
2009
- 2009-08-05 CN CN2009200315608U patent/CN201444715U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123543A (en) * | 2010-11-12 | 2011-07-13 | 康佳集团股份有限公司 | Indicating lamp control circuit of television and television |
| CN102123543B (en) * | 2010-11-12 | 2015-01-21 | 康佳集团股份有限公司 | Indicating lamp control circuit of television and television |
| CN103257915A (en) * | 2013-05-21 | 2013-08-21 | 北京小米科技有限责任公司 | Method and device for providing operation state of software of display equipment |
| CN103257915B (en) * | 2013-05-21 | 2016-03-30 | 小米科技有限责任公司 | A kind of method and apparatus that display device software operation state is provided |
| CN103823779A (en) * | 2014-01-24 | 2014-05-28 | 江苏银河电子股份有限公司 | Automatic switchover serial communication and remote control communication control circuit |
| CN103823779B (en) * | 2014-01-24 | 2016-09-28 | 江苏银河电子股份有限公司 | A kind of control circuit of automatically switch serial communication and underwater acoustic remote control |
| US10477632B2 (en) | 2014-12-10 | 2019-11-12 | Interdigital Ce Patent Holdings | Indicator circuit and apparatus using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20120805 |