CN201928478U - Television indicating lamp control circuit - Google Patents
Television indicating lamp control circuit Download PDFInfo
- Publication number
- CN201928478U CN201928478U CN2010205679711U CN201020567971U CN201928478U CN 201928478 U CN201928478 U CN 201928478U CN 2010205679711 U CN2010205679711 U CN 2010205679711U CN 201020567971 U CN201020567971 U CN 201020567971U CN 201928478 U CN201928478 U CN 201928478U
- Authority
- CN
- China
- Prior art keywords
- indicator light
- television
- control circuit
- indicating lamp
- microprocessor
- 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
- 238000005516 engineering process Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Landscapes
- Audible And Visible Signals (AREA)
Abstract
The utility model discloses a television indicating lamp control circuit, which comprises a standby power supply, a controlled power supply and a microprocessor which is used for controlling the on/off of the controlled power supply, wherein the controlled power supply is connected with the microprocessor. The television indicating lamp control circuit is characterized in that the control circuit additionally comprises a first indicating lamp which is used for indicating the standby state of a television and a second indicating lamp which is used for indicating the on state of the television, wherein one end of the first indicating lamp is connected with the standby power supply and the other end of the first indicating lamp is connected with a first current limiting resistor; one end of the second indicating lamp is connected with the controlled power supply and the other end of the second indicating lamp is connected with a second current limiting resistor; and a common diode is connected between the connecting end of the first indicating lamp and the first current limiting resistor and the controlled power supply, and the first current limiting resistor and the second current limiting resistor are grounded. Therefore, the television indicating lamp control circuit has the advantages that the switching between the indicating lamps of the television can be realized by using one control port only, the input/output (I/O) resource of the microprocessor of the television is saved and the system design is simplified.
Description
Technical field
The utility model relates to television technologies, relates in particular to a kind of television indicator light control circuit.
Background technology
At present, television set is extensively popularized, and along with development of electronic technology, the also more and more polynary change of television function, and its inner circuit element is Highgrade integration more and more also.Wherein, most circuit element all is controlled by the microprocessor of television set inside, so the I/O mouth of television set microprocessor has just become one of valuable source of television set.Generally speaking, two states is arranged: normal play state and holding state during television set work, this two states is to there being indicator light separately, and each I/O mouth control of the light on and off of two indicator lights by microprocessor, so just need two I/O mouths, and in fact, the indicator light control circuit of television set is all simple relatively, can only now control with an I/O cause for gossip fully.
In summary, existing television indicator light control circuit obviously exists inconvenience and defective in practical application, so be necessary to be improved.
The utility model content
At above-mentioned defective, the purpose of this utility model is to provide a kind of television indicator light control circuit, and it takies a control port, can save the I/O resource of microprocessor, the simplified system design.
To achieve these goals, the utility model provides a kind of television indicator light control circuit, comprise standby power, controlled source and be used to control the microprocessor that described controlled source is opened or closed, described controlled source is connected in described microprocessor, it is characterized in that described control circuit also comprises
One is used to indicate first indicator light of described television set holding state, and described first indicator light, one end connects described standby power, and the other end connects one first current-limiting resistance;
One is used to indicate second indicator light of described television boot-strap state, and described second indicator light, one end connects described controlled source, and the other end connects one second current-limiting resistance;
Be connected with a general-purpose diode between the link of described first indicator light and first current-limiting resistance and described controlled source, and described first current-limiting resistance and the equal ground connection of second current-limiting resistance.
According to television indicator light control circuit of the present utility model, described first indicator light and second indicator light are light-emitting diode.
According to television indicator light control circuit of the present utility model, the positive pole of described general-purpose diode is connected with the positive pole of described second indicator light, and the negative pole of described general-purpose diode is connected with the negative pole of described first indicator light.
The utility model is by changing the structure of television indicator light control circuit, make it only can realize the light on and off control of two indicator lights with an I/O mouth of microprocessor, be implemented as follows: connect first indicator light by standby power, controlled source connects second indicator light, and first indicator light and second indicator light are respectively by a current-limiting resistance ground connection, be connected with a general-purpose diode between the link of first indicator light and first current-limiting resistance and controlled source, controlled source connects an I/O mouth of television set microprocessor, closing or opening by this microprocessor control controlled source.Whereby, the utility model can be saved the I/O resource of television set microprocessor, the simplified system design.
Description of drawings
Fig. 1 is an electrical block diagram of the present utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 is the basic structure of the utility model television indicator light control circuit, this control circuit comprises standby power 10, controlled source 20, microprocessor 30, first indicator light, the first current-limiting resistance R1, second indicator light, the second current-limiting resistance R2 and general-purpose diode D, wherein, when being used for the television set standby, standby power 10 provides power supply for the indicator light control circuit, when being used for television set normal boot-strap operating state, controlled source 20 provides power supply for the indicator light control circuit, and controlled source 20 is connected in an I/O port of microprocessor 30, the unlatching of this controlled source 20 or close the control that is subjected to microprocessor 30.
In the present embodiment, first indicator light and second indicator light are light-emitting diode, and the corresponding LED1 of first indicator light, the corresponding LED2 of second indicator light.The first indicator light LED1 is used to indicate the holding state of television set, and this first indicator light LED1 one end connects standby power 10, and the other end connects the first current-limiting resistance R1; The second indicator light LED2 is used to indicate the normal play state of television set, this second indicator light LED2 one end connects controlled source 20, the other end connects the second current-limiting resistance R2, and the first current-limiting resistance R1 and the equal ground connection of the second current-limiting resistance R2 are respectively applied for the electric current of regulating on LED1 and the LED2.Better, the link of the first indicator light LED1 and the first current-limiting resistance R1 is connected general-purpose diode D with 20 of controlled sources, and the positive pole of this general-purpose diode D is connected with the positive pole of the second indicator light LED2, and the negative pole of this general-purpose diode D is connected with the negative pole of the first indicator light LED1.
In concrete the application, the first indicator light LED1 and the second indicator light LED2 are made as the indicator light of two kinds of different colours respectively, glow such as LED1 is made as, and LED2 is made as green light, red light represents that television set is in holding state, and green light represents that television set is in the normal boot-strap state.
When television set was in holding state, standby power 10 was given the power supply of indicator light control circuit, and controlled source 20 is closed by the control of microprocessor 30, and this moment, electric current passed through the first indicator light LED1 and the first current-limiting resistance R1, and the first indicator light LED1 sends ruddiness; Controlled source 20 is stopped power supply, and does not have electric current to pass through on the second indicator light LED2, so not luminous, this moment, the indicator light of television set had only redness, and the expression television set is in holding state.
When television set is in open state, standby power 10 and controlled source 20 all are in power supply state, only there is the second indicator light LED2 luminous when making television set be in open state, can realize by following setting: the conducting voltage of supposing the first indicator light LED1 is V1, and the conducting voltage of general-purpose diode D is V
D, the voltage of standby power 10 is V
A, the voltage of controlled source 20 is V
BSet V
B-V
D＞V
A-V1, then the voltage on the first indicator light LED1 is less than conducting voltage, and the first indicator light LED1 is in non-luminous state; Simultaneously, owing to have forward current to pass through on the second indicator light LED2 and the second current-limiting resistance R2, so the luminous demonstration of the second indicator light LED2 is green, whereby, television indicator light has only the second indicator light LED2 luminous, and the indication TV machine is an open state.
In the stateful switchover process of television set, whether the power supply of controlled source 20 realizes by microprocessor 30 controls: when television boot-strap, microprocessor 30 control controlled sources 20 are opened power supply, when television set is transformed into holding state, microprocessor 30 control controlled sources 20 are stopped power supply, whereby, microprocessor 30 only can be realized the indication control of television indicator light control circuit with an I/O mouth.
In sum, the utility model is by changing the structure of television indicator light control circuit, make it only can realize the light on and off control of two indicator lights with an I/O mouth of microprocessor, be implemented as follows: connect first indicator light by standby power, controlled source connects second indicator light, and first indicator light and second indicator light are all by a current-limiting resistance ground connection, be connected with a general-purpose diode between the link of first indicator light and first current-limiting resistance and controlled source, controlled source connects an I/O mouth of television set microprocessor, closing or opening by this microprocessor control controlled source.Whereby, the utility model can be saved the I/O resource of television set microprocessor, the simplified system design.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (3)
1. a television indicator light control circuit comprises standby power, controlled source and is used to control the microprocessor that described controlled source is opened or closed, and described controlled source is connected in described microprocessor, it is characterized in that, described control circuit also comprises:
One is used to indicate first indicator light of described television set holding state, and described first indicator light, one end connects described standby power, and the other end connects one first current-limiting resistance;
One is used to indicate second indicator light of described television boot-strap state, and described second indicator light, one end connects described controlled source, and the other end connects one second current-limiting resistance;
Be connected with a general-purpose diode between the link of described first indicator light and first current-limiting resistance and described controlled source, and described first current-limiting resistance and the equal ground connection of second current-limiting resistance.
2. television indicator light control circuit according to claim 1 is characterized in that, described first indicator light and second indicator light are light-emitting diode.
3. television indicator light control circuit according to claim 2 is characterized in that, the positive pole of described general-purpose diode is connected with the positive pole of described second indicator light, and the negative pole of described general-purpose diode is connected with the negative pole of described first indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205679711U CN201928478U (en) | 2010-10-14 | 2010-10-14 | Television indicating lamp control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205679711U CN201928478U (en) | 2010-10-14 | 2010-10-14 | Television indicating lamp control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928478U true CN201928478U (en) | 2011-08-10 |
Family
ID=44432311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205679711U Expired - Fee Related CN201928478U (en) | 2010-10-14 | 2010-10-14 | Television indicating lamp control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201928478U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107006098A (en) * | 2014-12-10 | 2017-08-01 | 汤姆逊许可公司 | Indicator circuit and the device using the indicator circuit |
| CN113395800A (en) * | 2021-07-01 | 2021-09-14 | 广州朗国电子科技股份有限公司 | Indicating lamp control circuit |
| CN113825283A (en) * | 2021-10-08 | 2021-12-21 | 深圳创维－Rgb电子有限公司 | Far-field voice visual indicator lamp control circuit, method and device and electronic product |
-
2010
- 2010-10-14 CN CN2010205679711U patent/CN201928478U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107006098A (en) * | 2014-12-10 | 2017-08-01 | 汤姆逊许可公司 | Indicator circuit and the device using the indicator circuit |
| CN113395800A (en) * | 2021-07-01 | 2021-09-14 | 广州朗国电子科技股份有限公司 | Indicating lamp control circuit |
| CN113825283A (en) * | 2021-10-08 | 2021-12-21 | 深圳创维－Rgb电子有限公司 | Far-field voice visual indicator lamp control circuit, method and device and electronic product |
| CN113825283B (en) * | 2021-10-08 | 2023-06-06 | 深圳创维－Rgb电子有限公司 | Far-field voice visual indicator lamp control circuit, method and device and electronic product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107493635A (en) | A kind of more pixel drive systems of LED | |
| CN204598413U (en) | A kind of LED light adjusting circuit possessing multiple current and select | |
| CN104955203B (en) | LED colour temperature adjusts circuis and LED | |
| CN104078923B (en) | Over under-voltage protection circuit and lighting device | |
| CN203775490U (en) | LED color temperature adjusting circuit and LED lighting device | |
| CN201928478U (en) | Television indicating lamp control circuit | |
| CN103841694B (en) | A kind of light fixture | |
| CN109287056A (en) | A kind of single-fire-wire electronic switch | |
| CN108879943A (en) | A kind of power supply switch circuit and electronic equipment | |
| CN102869157A (en) | Method for setting color of LED (light-emitting diode) lamp by on-off encoding of power supply switch | |
| CN103079310B (en) | Dimming control circuit for spotlight | |
| CN204836730U (en) | Emergency light | |
| CN206323600U (en) | It is a kind of while changing the LED drive circuit of luminous flux and light color temperature | |
| CN201332524Y (en) | State indicating lamp control device | |
| CN207321594U (en) | A kind of more pixel drive systems of LED | |
| CN102869156A (en) | Method for setting brightness of LED lamp by using on-off coding of power switch | |
| CN204681645U (en) | A kind of manual air conditioning controller secondary lighting control circuit | |
| CN106211474B (en) | A kind of light adjusting circuit and display device of a variety of dimming modes of compatibility | |
| CN209693116U (en) | A kind of single-fire-wire electronic switch | |
| CN202759653U (en) | LED lamp using power supply switch on-off encoding for setting color | |
| CN208079446U (en) | A kind of LED circuit with battery and logical city's reset | |
| CN206380128U (en) | A kind of LED light modulations toning constant-temperature circuit | |
| CN206759766U (en) | Dim the LED drive circuit of toning | |
| CN206224976U (en) | Backlight drive circuit | |
| CN106061003B (en) | Mobile terminal |
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: 20110810 Termination date: 20121014 |