CN102123543A - Indicating lamp control circuit of television and television - Google Patents
Indicating lamp control circuit of television and television Download PDFInfo
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- CN102123543A CN102123543A CN2010105410536A CN201010541053A CN102123543A CN 102123543 A CN102123543 A CN 102123543A CN 2010105410536 A CN2010105410536 A CN 2010105410536A CN 201010541053 A CN201010541053 A CN 201010541053A CN 102123543 A CN102123543 A CN 102123543A
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Abstract
The invention discloses an indicating lamp control circuit of a television and the television, wherein the indicating lamp control circuit comprises a first light-emitting diode and a second light-emitting diode, a first resistor, a second resistor, a third resistor, a first diode and a second diode, wherein an anode of the first light-emitting diode is connected with a standby power supply of the television, and a cathode of the first light-emitting diode is grounded by the first resistor; one end of the second resistor is connected with a first controllable power supply, and the other end of the second resistor is connected with an anode of the first diode; a cathode of the first diode is connected with an anode of the second light-emitting diode; a cathode of the second light-emitting diode is grounded by the first resistor; and one end of the third resistor is connected with a second controllable power supply, and the other end of the third resistor is connected with the anode of the second light-emitting diode via the second diode. In the invention, the switching of indicating lamps with three colors can be realized only by needing one control line in the indicating lamp control circuit of the prior art, the implementation of the circuit is simple and reliable, and the cost is lower.
Description
Technical field
The present invention relates to television set, relate in particular to a kind of television indicator light control circuit and a kind of television set.
Background technology
Television indicator light control circuit of the prior art generally adopts the bi-colour LED design, as Fig. 1 is television indicator light control circuit of the prior art, it comprises controllable electric power 1 and controllable electric power 2, controllable electric power 1 connects the anode of LED1, the negative electrode of LED1 is by resistance R 1 ground connection, and controllable electric power 2 connects the anode of LED2, and the negative electrode of LED2 is by resistance R 1 ground connection, LED1 glow green wherein, the LED2 burn red.When the television set standby, 2 pairs of LED2 power supplies of controllable electric power, this moment, LED2 sent red light, when television boot-strap, controllable electric power 1 pair of LED1 power supply, LED1 glow green at this moment.
Television indicator light control circuit of the prior art need be controlled the on and off of two LED lamps by two control lines respectively, and cost is than higher, and can only realize the switching of two kinds of color indicator lights.
Summary of the invention
The invention provides a kind of television indicator light control circuit and a kind of television set, a control line in the indicator light control circuit of its need prior art can be realized the switching of three kinds of color indicator lights, and circuit is realized simple and reliable, and cost is lower.
Technical scheme of the present invention is:
A kind of television indicator light control circuit comprises first light-emitting diode and second light-emitting diode, first resistance, second resistance, the 3rd resistance, first diode and second diode;
The anode of first light-emitting diode connects the standby power of television set, and negative electrode is by first grounding through resistance; One termination, first controllable electric power of second resistance, the other end is connected with the anode of first diode, and the negative electrode of first diode is connected with the anode of second light-emitting diode, and the negative electrode of second light-emitting diode is by first grounding through resistance; One termination, second controllable electric power of the 3rd resistance, the other end is connected with the anode of second diode, and the negative electrode of second diode is connected with the anode of second light-emitting diode;
First controllable electric power power supply, when second controllable electric power is not powered, the second luminous tube diode current flow, the first luminous tube diode end; First controllable electric power is not powered, second controllable electric power when power supply, the conducting simultaneously of first light-emitting diode and second light-emitting diode; When first controllable electric power and second controllable electric power are not powered, the first luminous tube diode current flow, second light-emitting diode ends.
A kind of television set comprises the indicator light control circuit, and this indicator light control circuit comprises first light-emitting diode and second light-emitting diode, first resistance, second resistance, the 3rd resistance, first diode and second diode;
The anode of first light-emitting diode connects the standby power of television set, and negative electrode is by first grounding through resistance; One termination, first controllable electric power of second resistance, the other end is connected with the anode of first diode, and the negative electrode of first diode is connected with the anode of second light-emitting diode, and the negative electrode of second light-emitting diode is by first grounding through resistance; One termination, second controllable electric power of the 3rd resistance, the other end is connected with the anode of second diode, and the negative electrode of second diode is connected with the anode of second light-emitting diode;
First controllable electric power power supply, when second controllable electric power is not powered, the second luminous tube diode current flow, the first luminous tube diode end; First controllable electric power is not powered, second controllable electric power when power supply, the conducting simultaneously of first light-emitting diode and second light-emitting diode; When first controllable electric power and second controllable electric power are not powered, the first luminous tube diode current flow, second light-emitting diode ends.
Another television indicator light control circuit comprises first light-emitting diode, second light-emitting diode, first resistance and second resistance;
The anode of first light-emitting diode connects the standby power of television set, and negative electrode is by first grounding through resistance; One termination controllable electric power of second resistance, the other end is connected with the anode of second light-emitting diode, and the negative electrode of second light-emitting diode is by first grounding through resistance;
During the controllable electric power power supply, the second luminous tube diode current flow, the first luminous tube diode end; When controllable electric power is not powered, the first luminous tube diode current flow, second light-emitting diode ends.
Another television set comprises the indicator light control circuit, and this indicator light control circuit comprises first light-emitting diode, second light-emitting diode, first resistance and second resistance;
The anode of first light-emitting diode connects the standby power of television set, and negative electrode is by first grounding through resistance; One termination controllable electric power of second resistance, the other end is connected with the anode of second light-emitting diode, and the negative electrode of second light-emitting diode is by first grounding through resistance;
During the controllable electric power power supply, the second luminous tube diode current flow, the first luminous tube diode end; When controllable electric power is not powered, the first luminous tube diode current flow, second light-emitting diode ends.
The present invention powers at first controllable electric power, when second controllable electric power is not powered, has only the second luminous tube diode bright, shows the indicator light of first kind of color; When first controllable electric power and second controllable electric power are not powered, have only the first luminous tube diode bright, show the indicator light of second color; First controllable electric power is not powered, second controllable electric power when power supply, and first light-emitting diode and second light-emitting diode are simultaneously bright, show the indicator light of the third color this moment; Only need the power supply of control first controllable electric power and second controllable electric power or do not power to get final product, only use a control line in the indicator light control circuit of prior art, just realized the switching of three kinds of color indicator lights of television set, saved connecting line, reduced cost, and circuit is realized simple and reliable.
Description of drawings
Fig. 1 is the circuit theory diagrams of television indicator light control circuit of the prior art;
Fig. 2 is television indicator light control circuit of the present invention circuit theory diagrams in one embodiment;
Fig. 3 is television indicator light control circuit of the present invention circuit theory diagrams in another embodiment;
Fig. 4 is television indicator light control circuit of the present invention circuit theory diagrams in another embodiment.
Embodiment
Below in conjunction with accompanying drawing specific embodiments of the invention are done a detailed elaboration.
Embodiment one
Television indicator light control circuit of the present invention as Fig. 2, comprises first LED 1, second LED 2, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the first diode D1 and the second diode D2;
The anode of first LED 1 connects the standby power of television set, and negative electrode is by first resistance R, 1 ground connection; One termination, first controllable electric power of second resistance R 2, the other end is connected with the anode of the first diode D1, and the negative electrode of the first diode D1 is connected with the anode of second LED 2, and the negative electrode of second LED 2 is by first resistance R, 1 ground connection; One termination, second controllable electric power of the 3rd resistance R 3, the other end is connected with the anode of the second diode D2, and the negative electrode of the second diode D2 is connected with the anode of second LED 2; Wherein first LED 1 and second LED 2 send the light of different colours, and the first diode D1 and the second diode D2 are common diode;
First controllable electric power power supply, when second controllable electric power is not powered, first controllable electric power is to 2 power supplies of second LED, 2 conductings of the second luminous tube diode (LED), the voltage that produces on first resistance R 1 ends the luminous tube diode (LED) 1 of winning greater than standby power; First controllable electric power is not powered, second controllable electric power when power supply, second controllable electric power is to 2 power supplies of second LED, 2 conductings of second LED, the voltage that produce on first resistance R 1 this moment are less than standby power, the first also conducting of LED 1; When first controllable electric power and second controllable electric power were not powered, second LED 2 ended, first luminous tube diode (LED) 1 conducting under the power supply of standby power.
In concrete the application, need set the magnitude relationship between first resistance R 1, second resistance R 2, the 3rd resistance R 3 and the size of first controllable electric power, second controllable electric power and standby power, in a preferred embodiment, standby power is made as 3.3V, the voltage of first controllable electric power and the output of second controllable electric power all is made as 5V, first resistance R 1 is made as 470 ohm, and second resistance R 2 is made as 270 ohm, and the 3rd resistance is made as 1.3K ohm.
Adjust the electric current on second LED 2 for convenience, as Fig. 3, television indicator light control circuit of the present invention also comprises the 4th resistance R 4, and it is connected in parallel on the two ends of the second luminous tube diode (LED) 2.Perhaps, television indicator light control circuit of the present invention also comprises voltage stabilizing didoe D3, and its anode is connected with the negative electrode of the second luminous tube diode (LED) 2, and negative electrode is connected with the anode of the second luminous tube diode (LED) 2.Perhaps, television indicator light control circuit of the present invention also comprises voltage stabilizing didoe D3 and the 4th resistance R 4 simultaneously, the 4th resistance R 4 is connected in parallel on the two ends of the second luminous tube diode (LED) 2, the anode of voltage stabilizing didoe D3 is connected with the negative electrode of the second luminous tube diode (LED) 2, and negative electrode is connected with the anode of the second luminous tube diode (LED) 2.
In actual applications, first controllable electric power and second controllable electric power can be controlled by the CPU in the television set, after promptly this CPU receives directive command, can control the power supply of first controllable electric power and second controllable electric power or do not power.After receiving standby command such as CPU, control first controllable electric power and second controllable electric power is not powered, this moment, second LED 2 ended, and first luminous tube diode (LED) 1 conducting under the power supply of standby power can show the indicator light under the holding state; After CPU receives power-on command, control first controllable electric power power supply, second controllable electric power is not powered, first controllable electric power is to 2 power supplies of second LED, and 2 conductings of the second luminous tube diode (LED), the first luminous tube diode (LED) 1 end, and can show the indicator light under the open state; When CPU receives other states such as timing start-up, control that first controllable electric power is not powered, the power supply of second controllable electric power, second controllable electric power is to 2 power supplies of second LED, 2 conductings of second LED, the voltage that produce on first resistance R 1 this moment is less than standby power, the first also conducting of LED 1 can the Displaying timer start waits the indicator light under other states.
Embodiment two
This embodiment discloses a kind of television set, and it comprises the indicator light control circuit, and the particular circuit configurations of this indicator light control circuit is identical with embodiment one, does not give unnecessary details at this.
Embodiment three
This embodiment discloses a kind of television indicator light control circuit, and as Fig. 4, it comprises first LED 1, second LED 2, first resistance R 1, second resistance R 2;
The anode of first LED 1 connects the standby power of television set, and negative electrode is by first resistance R, 1 ground connection; One termination controllable electric power of second resistance R 2, the other end is connected with the anode of second LED 2, and the negative electrode of second LED 2 is by first resistance R, 1 ground connection; Wherein first LED 1 and second LED 2 send the light of different colours;
During the controllable electric power power supply, 2 conductings of the second luminous tube diode (LED), this moment, the first luminous tube diode (LED) 1 ended because the voltage of generation is greater than standby power on first resistance R 1; When controllable electric power was not powered, second LED 2 ended, and this moment, standby power was to 1 power supply of the first luminous tube diode (LED), 1 conducting of first LED.
In the practical application, need set the magnitude relationship of first resistance R 1, second resistance R 2 and standby power and controllable electric power.
Wherein, can or not power by the power supply of the CPU in television set control controllable electric power.After receiving standby command such as CPU, the control controllable electric power is not powered, and the second luminous tube diode (LED) 2 can show the indicator light under the holding state by, the first luminous tube diode (LED), 1 conducting; When CPU receives power-on command, the power supply of control controllable electric power, second LED, 2 conductings this moment, first LED 1 ends.
This embodiment is by the switching of the two kinds of color indicator lights of a control line realization in the indicator light control circuit of the prior art, and circuit structure is simple and reliable, has saved connecting line, has reduced cost.
Embodiment four
This embodiment discloses a kind of television set, and it comprises the indicator light control circuit, and the particular circuit configurations of this indicator light control circuit is identical with enforcement three, does not give unnecessary details at this.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (8)
1. a television indicator light control circuit comprises first light-emitting diode and second light-emitting diode, it is characterized in that, also comprises: first resistance, second resistance, the 3rd resistance, first diode and second diode;
The anode of first light-emitting diode connects the standby power of television set, and negative electrode is by first grounding through resistance; One termination, first controllable electric power of second resistance, the other end is connected with the anode of first diode, and the negative electrode of first diode is connected with the anode of second light-emitting diode, and the negative electrode of second light-emitting diode is by first grounding through resistance; One termination, second controllable electric power of the 3rd resistance, the other end is connected with the anode of second diode, and the negative electrode of second diode is connected with the anode of second light-emitting diode;
First controllable electric power power supply, when second controllable electric power is not powered, the second luminous tube diode current flow, the first luminous tube diode end; First controllable electric power is not powered, second controllable electric power when power supply, the conducting simultaneously of first light-emitting diode and second light-emitting diode; When first controllable electric power and second controllable electric power were not powered, the first luminous tube diode current flow, second light-emitting diode ended.
2. television indicator light control circuit according to claim 1 is characterized in that: also comprise the 4th resistance, it is connected in parallel on the two ends of the second luminous tube diode.
3. television indicator light control circuit according to claim 1 and 2 is characterized in that: also comprise voltage stabilizing didoe, its anode is connected with the negative electrode of the second luminous tube diode, and negative electrode is connected with the anode of the second luminous tube diode.
4. television set, comprise the indicator light control circuit, this indicator light control circuit comprises first light-emitting diode and second light-emitting diode, it is characterized in that, this indicator light control circuit also comprises: first resistance, second resistance, the 3rd resistance, first diode and second diode;
The anode of first light-emitting diode connects the standby power of television set, and negative electrode is by first grounding through resistance; One termination, first controllable electric power of second resistance, the other end is connected with the anode of first diode, and the negative electrode of first diode is connected with the anode of second light-emitting diode, and the negative electrode of second light-emitting diode is by first grounding through resistance; One termination, second controllable electric power of the 3rd resistance, the other end is connected with the anode of second diode, and the negative electrode of second diode is connected with the anode of second light-emitting diode;
First controllable electric power power supply, when second controllable electric power is not powered, the second luminous tube diode current flow, the first luminous tube diode end; First controllable electric power is not powered, second controllable electric power when power supply, the conducting simultaneously of first light-emitting diode and second light-emitting diode; When first controllable electric power and second controllable electric power were not powered, the first luminous tube diode current flow, second light-emitting diode ended.
5. television set according to claim 4 is characterized in that: this indicator light control circuit also comprises the 4th resistance, and it is connected in parallel on the two ends of the second luminous tube diode.
6. according to claim 4 or 5 described television sets, it is characterized in that: this indicator light control circuit also comprises voltage stabilizing didoe, and its anode is connected with the negative electrode of the second luminous tube diode, and negative electrode is connected with the anode of the second luminous tube diode.
7. a television indicator light control circuit comprises first light-emitting diode and second light-emitting diode, it is characterized in that, also comprises: first resistance and second resistance;
The anode of first light-emitting diode connects the standby power of television set, and negative electrode is by first grounding through resistance; One termination controllable electric power of second resistance, the other end is connected with the anode of second light-emitting diode, and the negative electrode of second light-emitting diode is by first grounding through resistance;
During the controllable electric power power supply, the second luminous tube diode current flow, the first luminous tube diode end; When controllable electric power was not powered, the first luminous tube diode current flow, second light-emitting diode ended.
8. a television set comprises the indicator light control circuit, and this indicator light control circuit comprises first light-emitting diode and second light-emitting diode, it is characterized in that, this indicator light control circuit also comprises: first resistance and second resistance;
The anode of first light-emitting diode connects the standby power of television set, and negative electrode is by first grounding through resistance; One termination controllable electric power of second resistance, the other end is connected with the anode of second light-emitting diode, and the negative electrode of second light-emitting diode is by first grounding through resistance;
During the controllable electric power power supply, the second luminous tube diode current flow, the first luminous tube diode end; When controllable electric power is not powered, the first luminous tube diode current flow, second light-emitting diode ends.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010541053.6A CN102123543B (en) | 2010-11-12 | 2010-11-12 | Indicating lamp control circuit of television and television |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010541053.6A CN102123543B (en) | 2010-11-12 | 2010-11-12 | Indicating lamp control circuit of television and television |
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| CN102123543A true CN102123543A (en) | 2011-07-13 |
| CN102123543B CN102123543B (en) | 2015-01-21 |
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| CN201010541053.6A Active CN102123543B (en) | 2010-11-12 | 2010-11-12 | Indicating lamp control circuit of television and television |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN101175345A (en) * | 2006-10-30 | 2008-05-07 | 青岛海信电器股份有限公司 | Indicating circuit twinkling at start-up |
| CN101409965A (en) * | 2007-10-12 | 2009-04-15 | 康佳集团股份有限公司 | Circuit for controlling remote-control indicating lamp |
| CN101568210A (en) * | 2009-05-15 | 2009-10-28 | 深圳创维－Rgb电子有限公司 | Television indicator light circuit capable of reducing the standby power consumption |
| CN201444715U (en) * | 2009-08-05 | 2010-04-28 | 青岛海信电器股份有限公司 | Indicating lamp control circuit and television with circuit |
-
2010
- 2010-11-12 CN CN201010541053.6A patent/CN102123543B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101175345A (en) * | 2006-10-30 | 2008-05-07 | 青岛海信电器股份有限公司 | Indicating circuit twinkling at start-up |
| CN101409965A (en) * | 2007-10-12 | 2009-04-15 | 康佳集团股份有限公司 | Circuit for controlling remote-control indicating lamp |
| CN101568210A (en) * | 2009-05-15 | 2009-10-28 | 深圳创维－Rgb电子有限公司 | Television indicator light circuit capable of reducing the standby power consumption |
| CN201444715U (en) * | 2009-08-05 | 2010-04-28 | 青岛海信电器股份有限公司 | Indicating lamp control circuit and television with circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| CN102123543B (en) | 2015-01-21 |
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Effective date of registration: 20200701 Address after: 23 / F, Guangdong hi tech District Patentee after: Shenzhen Konka Holding Group Co., Ltd Address before: 518000 No. 9008 Shennan Avenue, overseas Chinese town, Shenzhen, Guangdong, Nanshan District Patentee before: KONKA GROUP Co.,Ltd. |
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