CN103560775A - Energy-saving type optoelectronic switch decoder - Google Patents
Energy-saving type optoelectronic switch decoder Download PDFInfo
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- CN103560775A CN103560775A CN201310501787.5A CN201310501787A CN103560775A CN 103560775 A CN103560775 A CN 103560775A CN 201310501787 A CN201310501787 A CN 201310501787A CN 103560775 A CN103560775 A CN 103560775A
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- energy
- amplifier
- phototriode
- resistance
- optoelectronic switch
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Abstract
The invention discloses an energy-saving type optoelectronic switch decoder comprising a power management chip, a light guide switch circuit and an amplifier connected to the light guide switch circuit. The output end of the amplifier is connected to a logic drive circuit. A decoding chip and a clock chip are connected to the logic drive circuit. The power input end of the power management chip is connected to a power source; the power output end of the power management chip is connected with a power source of the amplifier. The energy-saving type optoelectronic switch decoder has the advantages of being controlled by the light guide switch circuit, being easy and convenient to use, avoiding nightly operation and achieving the aim of saving energy.
Description
Technical field
The present invention relates to a kind of decoder, relate in particular a kind of energy-saving optoelectronic switch decoder.
Background technology
Decoder be otherwise known as receiver, driver or remote control equipment are a kind of important headend equipments.It decodes the coded data through overcompression, so that rear end equipment is processed data, can control the operation of follow-up some equipment, to meet the functional requirement of follow-up equipment.Decoder is when being connected with watch-dog, and it can carry out hardware decoding by encoded figure, and the analog signal of decoding output, can supply with and televise.But watch-dog is general direct to be connected with mains switch, the break-make of mains switch determines the operation of watch-dog.In unmanned at night, the continuous service of watch-dog is a kind of waste, is also unwanted, and especially in office space, watch-dog is the occasion for normal working condition on monitor's work day; If the connection that has personnel to go control monitoring to be arranged at power supply is controlled the operation of watch-dog, this also will make troubles to personnel.
Summary of the invention
The invention provides a kind of energy-saving optoelectronic switch decoder, it adopts photoconductive switch circuit to control decoder, simple and convenient, avoids decoder to operate at night, reaches the object of energy savings.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
Energy-saving optoelectronic switch decoder, it comprises power management chip, photoconductive switch circuit and is connected to the amplifier on photoconductive switch circuit; The output of described amplifier is connected on logic drive circuit; On described logic drive circuit, be connected with decoding chip and clock chip; The power input of described power management chip is connected on power supply, and power output end is connected with the power supply of amplifier.In the present invention, photoconductive switch circuit operates conducting in the situation that having illumination, office has in people's situation and moves by day, photoconductive switch circuit comes into operation, amplifier amplifies the signal of photoconductive switch circuit, and logic drive circuit strengthens driving force lift level, and output digit signals carries out digital decoding to decoding chip, decoding chip sends to follow-up control appliance by the signal of decoding again, is convenient to follow-up equipment to control.Clock chip provides clock signal for logic drive circuit.Power management chip is amplifier provides power supply, and amplifier is protected.On decoder, set up photoconductive switch circuit, utilize intensity of illumination to control the running of decoder, can avoid people to control decoder, simple and convenient, and can avoid decoder in the operation at night, reach the object of saving.
Further technical scheme is:
As preferably, described photoconductive switch circuit comprises resistance R 1, resistance R 2, resistance R 3 and phototriode, the base stage of described phototriode, collector electrode are connected with power supply by resistance R 1, resistance R 2 respectively, the base stage of phototriode is connected to the ground by resistance R 3, the grounded emitter of phototriode.Utilize photo resistance as photoinduction device, it is than photodiode, and its susceptibility is high.Illumination acts on phototriode, phototriode conducting, and decoder comes into operation, and the pressure reduction of phototriode changes along with the variation of intensity of illumination, and amplifier changes and amplifies its pressure reduction.
Further, two of described amplifier inputs are connected on the collector and emitter of phototriode.
As preferably, described power management chip is KA7500.
Compared with prior art, the invention has the beneficial effects as follows: the present invention utilizes photoconductive switch circuit to control decoder, simple and convenient, avoids decoder to operate at night, reaches the object of energy savings.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.Embodiments of the present invention include but not limited to the following example.
[embodiment]
Energy-saving optoelectronic switch decoder as shown in Figure 1, it comprises power management chip, photoconductive switch circuit and is connected to the amplifier on photoconductive switch circuit; The output of described amplifier is connected on logic drive circuit; On described logic drive circuit, be connected with decoding chip and clock chip; The power input of described power management chip is connected on power supply, and power output end is connected with the power supply of amplifier.
Described photoconductive switch circuit comprises resistance R 1, resistance R 2, resistance R 3 and phototriode, the base stage of described phototriode, collector electrode are connected with power supply by resistance R 1, resistance R 2 respectively, the base stage of phototriode is connected to the ground by resistance R 3, the grounded emitter of phototriode.
Two inputs of described amplifier are connected on the collector and emitter of phototriode.
Described power management chip is KA7500.
The operation principle of the present embodiment is as follows:
Illumination acts on phototriode, phototriode conducting, photoconductive switch circuit comes into operation, the pressure reduction of phototriode changes along with the variation of intensity of illumination, amplifier amplifies the signal of photoconductive switch circuit, and logic drive circuit strengthens driving force lift level, and output digit signals carries out digital decoding to decoding chip, decoding chip sends to follow-up control appliance by the signal of decoding again, is convenient to follow-up equipment to control.Clock chip provides clock signal for logic drive circuit.Power management chip is amplifier provides power supply, and amplifier is protected.
According to the above embodiments, can well complete the present invention.
Be as mentioned above embodiments of the invention.The present invention is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, within all falling into protection scope of the present invention.
Claims (4)
1. energy-saving optoelectronic switch decoder, is characterized in that: it comprises power management chip, photoconductive switch circuit and is connected to the amplifier on photoconductive switch circuit; The output of described amplifier is connected on logic drive circuit; On described logic drive circuit, be connected with decoding chip and clock chip; The power input of described power management chip is connected on power supply, and power output end is connected with the power supply of amplifier.
2. energy-saving optoelectronic switch decoder according to claim 1, it is characterized in that: described photoconductive switch circuit comprises resistance R 1, resistance R 2, resistance R 3 and phototriode, the base stage of described phototriode, collector electrode are connected with power supply by resistance R 1, resistance R 2 respectively, the base stage of phototriode is connected to the ground by resistance R 3, the grounded emitter of phototriode.
3. energy-saving optoelectronic switch decoder according to claim 2, is characterized in that: two inputs of described amplifier are connected on the collector and emitter of phototriode.
4. energy-saving optoelectronic switch decoder according to claim 1, is characterized in that: described power management chip is KA7500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310501787.5A CN103560775A (en) | 2013-10-23 | 2013-10-23 | Energy-saving type optoelectronic switch decoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310501787.5A CN103560775A (en) | 2013-10-23 | 2013-10-23 | Energy-saving type optoelectronic switch decoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103560775A true CN103560775A (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310501787.5A Pending CN103560775A (en) | 2013-10-23 | 2013-10-23 | Energy-saving type optoelectronic switch decoder |
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| CN (1) | CN103560775A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106534852A (en) * | 2016-11-22 | 2017-03-22 | 浙江大华技术股份有限公司 | Decoding method and apparatus of decoding card |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4369371A (en) * | 1980-11-24 | 1983-01-18 | Canadian Patents & Dev. Limited | Broadband high speed optoelectronic semiconductor switch |
| CN203014986U (en) * | 2012-12-18 | 2013-06-19 | 江西钜维科技有限公司 | Preset position intelligent regulation apparatus |
| CN203522688U (en) * | 2013-10-23 | 2014-04-02 | 成都市宏山科技有限公司 | Photoelectric switch decoder |
-
2013
- 2013-10-23 CN CN201310501787.5A patent/CN103560775A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4369371A (en) * | 1980-11-24 | 1983-01-18 | Canadian Patents & Dev. Limited | Broadband high speed optoelectronic semiconductor switch |
| CN203014986U (en) * | 2012-12-18 | 2013-06-19 | 江西钜维科技有限公司 | Preset position intelligent regulation apparatus |
| CN203522688U (en) * | 2013-10-23 | 2014-04-02 | 成都市宏山科技有限公司 | Photoelectric switch decoder |
Non-Patent Citations (1)
| Title |
|---|
| 田德恒: "数字信号光耦合器应用电路设计", 《电子测试》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106534852A (en) * | 2016-11-22 | 2017-03-22 | 浙江大华技术股份有限公司 | Decoding method and apparatus of decoding card |
| CN106534852B (en) * | 2016-11-22 | 2019-05-24 | 浙江大华技术股份有限公司 | A kind of coding/decoding method and device of decoding card |
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Application publication date: 20140205 |