CN105070166A - Sound-light controlled LED lamp circuit - Google Patents
Sound-light controlled LED lamp circuit Download PDFInfo
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- CN105070166A CN105070166A CN201510604085.9A CN201510604085A CN105070166A CN 105070166 A CN105070166 A CN 105070166A CN 201510604085 A CN201510604085 A CN 201510604085A CN 105070166 A CN105070166 A CN 105070166A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention provides a sound-light controlled LED lamp circuit for simulating electronic technology practice teaching. The sound-light controlled LED lamp circuit comprises a sound voltage conversion unit, an alternating voltage amplification unit, a voltage-multiplying detection unit, a light voltage conversion unit, a voltage comparator unit, a timer unit, and an LED drive unit. The alternating voltage amplification unit and the LED drive unit are constructed with triodes, the voltage-multiplying detection unit is constructed with diodes, and the voltage comparator unit and the timer unit are constructed with integrated operational amplifiers. Through intuitive demonstration by the functional circuit, the originally boring verification experiment of an independent unit circuit becomes more vivid. Therefore, the interest of students in participating in the experiment is increased, the effect of experimental teaching is enhanced, and students can have a better understanding of the unit circuit composed of the diodes, the transistors and the integrated operational amplifiers.
Description
Technical field
The present invention relates to a kind of LED lamp circuit, specifically a kind of sound-light controlled LED circuit for lamp of Analog Electronics Technique practice-training teaching, belongs to electronic technology field.
Background technology
Diode, triode and integrated operational amplifier are analog electronics conventional in electronic circuit, and the element circuit be made up of them is also the key content of analog electronic technology course teaching.In order to improve the practicals kill of student, in imitative electric tech teaching, all arrange corresponding practice-training teaching.But in traditional Analog Electronics Technique practice-training teaching, all using the element circuit of diode, triode and integrated operational amplifier as real training circuit, and these real trainings are all generally replication experiments, be difficult to the interest attracting student, therefore, the enthusiasm of students' participation real training is not high, and practice-training teaching effect is also bad.
" electronic technical experiment teaching is thought deeply " literary composition being published in " laboratory study and exploration " periodical in July, 2012 is thought, student is not interested to electronic technology replication experiment, cause experiment teaching effect bad, improve electronic technical experiment teaching effect, must a little attractive experimental project be designed, participate in the interest of experiment with mobilizing students.
Summary of the invention
In order to the problem that the practice-training teaching effect solving above-mentioned traditional analog Electron Technique Course is bad, the invention provides a kind of sound-light controlled LED circuit for lamp, this circuit can be applicable to Analog Electronics Technique Experiment teaching, be intended to the interest improving students' participation experiment, improve the effect of analog electronic technology course practice-training teaching.
The concrete technical scheme that the present invention takes is as follows:
A kind of sound-light controlled LED circuit for lamp, it is characterized in that: comprise sound voltage conversion unit, alternating voltage amplifying unit, multiplication of voltage detection unit, light voltage conversion unit, voltage comparator unit, timer units, LED drive unit, wherein the output terminal of sound voltage conversion unit is connected to the input end of alternating voltage amplifying unit, the output terminal of alternating voltage amplifying unit is connected to the input end of multiplication of voltage detection unit, the output terminal of multiplication of voltage detection unit is connected to an input end of voltage comparator unit, the output terminal of light voltage conversion unit is connected to another input end of voltage comparator unit, the output terminal of voltage comparator unit is connected to the input end of timer units, the output terminal of timer units is connected to the input end of LED drive unit, described alternating voltage amplifying unit and LED drive unit adopt triode to build, and described multiplication of voltage detection unit adopts diode to build, and described voltage comparator unit and timer units adopt integrated operational amplifier to build.
The present invention devises a sound-light controlled LED lamp functional circuitry, by the ocular demonstration of this functional circuitry, the confirmatory experiment of separate unit circuit originally dry as dust is made to become more lively, thus improve the interest of students' participation experiment, enhance the effect of experimental teaching, make students can have better understanding to the element circuit that diode, triode and integrated operational amplifier form.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Fig. 2 is specific implementation circuit diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, this sound-light controlled LED circuit for lamp comprises sound voltage conversion unit, alternating voltage amplifying unit, multiplication of voltage detection unit, light voltage conversion unit, voltage comparator unit, timer units, LED drive unit, wherein the output terminal of sound voltage conversion unit is connected to the input end of alternating voltage amplifying unit, the output terminal of alternating voltage amplifying unit is connected to the input end of multiplication of voltage detection unit, the output terminal of multiplication of voltage detection unit is connected to an input end of voltage comparator unit, the output terminal of light voltage conversion unit is connected to another input end of voltage comparator unit, the output terminal of voltage comparator unit is connected to the input end of timer units, the output terminal of timer units is connected to the input end of LED drive unit.
As shown in Figure 2, in described sound voltage conversion unit ,+5V power supply connects the output terminal of Electret condenser microphone MIC for its power supply to specific implementation circuit of the present invention through resistance R1, the ground end ground connection of Electret condenser microphone MIC; In described alternating voltage discharge cell, the output terminal of Electret condenser microphone MIC is loaded on the base stage of triode Q1 through electric capacity C1, + 5V power supply through the collector of resistance R2 connecting triode Q1, contact resistance R3 between the collector of triode Q1 and base stage, the grounded emitter of triode Q1; In described multiplication of voltage detection unit, the collector of the one termination triode Q1 of electric capacity C2, the negative pole of another terminating diode D1 of electric capacity C2 and the positive pole of diode D2, the negative pole of diode D2 and one end of electric capacity C3 and resistance R4 access the negative input end of the operational amplifier U1 of voltage comparator unit jointly, the other end of electric capacity C3 and resistance R4 and the positive pole common ground of diode D1; In described light voltage conversion unit, one end of photoresistance R12 and resistance R5, R6 accesses the positive input terminal of the operational amplifier U1 of voltage comparator unit jointly, another termination+5V power supply of photoresistance R12 and resistance R5, the other end ground connection of resistance R6; The negative pole of the diode D3 of the output termination timer units of the operational amplifier U1 of described voltage comparator unit; In described timer units, the positive pole of the positive pole of diode D3 and resistance R7, electric capacity C4 accesses the negative input end of operational amplifier U2 jointly, the minus earth of electric capacity C4, one end of resistance R8 and R9 accesses the positive input terminal of operational amplifier U2 jointly, another termination+5V power supply of resistance R7 and R8, the other end ground connection of resistance R9; In described LED drive circuit, the output terminal of operational amplifier U2 is loaded on the base stage of triode Q2, the grounded emitter of triode Q2 through resistance R11, collector connects the negative pole of LED D4, and the positive pole of LED D4 connects+5V power supply through resistance R10.Operational amplifier U1 and U2 of described voltage comparator unit and timer units is provided by LM358 chip.
When using this circuit to carry out real training, can observe: when extraneous light is stronger, the resistance of photoresistance R12 is very little, and now the positive input terminal voltage of operational amplifier U1 is high, and the output terminal of operational amplifier U1 maintains high level, diode D3 not conducting, + 5V power supply charges to electric capacity C4 through resistance R7, and electric capacity C4 maintains noble potential after being full of electricity, therefore operational amplifier U2 output terminal maintains low level, triode Q2 not conducting, LED D4 does not work.When extraneous light turns weak, the resistance of photoresistance R12 increases rapidly, the positive input terminal voltage drop of operational amplifier U1.Now when external sound is enough large, the voltage that voice signal is loaded on operational amplifier U1 negative input end after sound voltage transitions, interchange amplification and multiplication of voltage detection is greater than operational amplifier U1 positive input terminal voltage, the output terminal of operational amplifier U1 overturns rapidly as low level, diode D3 conducting, electric capacity C4 declines through diode D3 electric discharge afterpotential, the output terminal of operational amplifier U2 is turned into high level, and triode Q2 conducting, LED D4 lights.When external sound diminishes or disappear, the output terminal upset of operational amplifier U1 is high level, diode D3 ends, now+5V power supply charges to electric capacity C4 through resistance R7, due to just can noble potential be reached after needs charging certain hour, just low level is turned into, so LED D4 just extinguishes after also postponing certain hour after the high level of operational amplifier U2 output terminal can maintain certain hour.
Claims (3)
1. a sound-light controlled LED circuit for lamp, it is characterized in that: comprise sound voltage conversion unit, alternating voltage amplifying unit, multiplication of voltage detection unit, light voltage conversion unit, voltage comparator unit, timer units, LED drive unit, wherein the output terminal of sound voltage conversion unit is connected to the input end of alternating voltage amplifying unit, the output terminal of alternating voltage amplifying unit is connected to the input end of multiplication of voltage detection unit, the output terminal of multiplication of voltage detection unit is connected to an input end of voltage comparator unit, the output terminal of light voltage conversion unit is connected to another input end of voltage comparator unit, the output terminal of voltage comparator unit is connected to the input end of timer units, the output terminal of timer units is connected to the input end of LED drive unit.
2. sound-light controlled LED circuit for lamp according to claim 1, is characterized in that: in described sound voltage conversion unit, and+5V power supply connects the output terminal of Electret condenser microphone MIC for its power supply through resistance R1, the ground end ground connection of Electret condenser microphone MIC; In described alternating voltage discharge cell, the output terminal of Electret condenser microphone MIC is loaded on the base stage of triode Q1 through electric capacity C1, + 5V power supply through the collector of resistance R2 connecting triode Q1, contact resistance R3 between the collector of triode Q1 and base stage, the grounded emitter of triode Q1; In described multiplication of voltage detection unit, the collector of the one termination triode Q1 of electric capacity C2, the negative pole of another terminating diode D1 of electric capacity C2 and the positive pole of diode D2, the negative pole of diode D2 and one end of electric capacity C3 and resistance R4 access the negative input end of the operational amplifier U1 of voltage comparator unit jointly, the other end of electric capacity C3 and resistance R4 and the positive pole common ground of diode D1; In described light voltage conversion unit, one end of photoresistance R12 and resistance R5, R6 accesses the positive input terminal of the operational amplifier U1 of voltage comparator unit jointly, another termination+5V power supply of photoresistance R12 and resistance R5, the other end ground connection of resistance R6; The negative pole of the diode D3 of the output termination timer units of the operational amplifier U1 of described voltage comparator unit; In described timer units, the positive pole of the positive pole of diode D3 and resistance R7, electric capacity C4 accesses the negative input end of operational amplifier U2 jointly, the minus earth of electric capacity C4, one end of resistance R8 and R9 accesses the positive input terminal of operational amplifier U2 jointly, another termination+5V power supply of resistance R7 and R8, the other end ground connection of resistance R9; In described LED drive circuit, the output terminal of operational amplifier U2 is loaded on the base stage of triode Q2, the grounded emitter of triode Q2 through resistance R11, collector connects the negative pole of LED D4, and the positive pole of LED D4 connects+5V power supply through resistance R10.
3. sound-light controlled LED circuit for lamp according to claim 2, is characterized in that: operational amplifier U1 and U2 of described voltage comparator unit and timer units is provided by LM358 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510604085.9A CN105070166A (en) | 2015-09-22 | 2015-09-22 | Sound-light controlled LED lamp circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510604085.9A CN105070166A (en) | 2015-09-22 | 2015-09-22 | Sound-light controlled LED lamp circuit |
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| CN105070166A true CN105070166A (en) | 2015-11-18 |
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| CN201510604085.9A Pending CN105070166A (en) | 2015-09-22 | 2015-09-22 | Sound-light controlled LED lamp circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105764199A (en) * | 2016-04-28 | 2016-07-13 | 贵州恒晋科技有限公司 | Light sensation control type light emitting device with power supplying based on rotating speed |
| CN106793388A (en) * | 2016-12-07 | 2017-05-31 | 广西大学 | A kind of illuminating lamp acousto-optic inductive control circuit of stable work in work |
| CN108550306A (en) * | 2018-06-15 | 2018-09-18 | 广西职业技术学院 | A kind of heart rate for integrated operational amplifier circuit teaching synchronizes breath light |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2141633Y (en) * | 1992-10-10 | 1993-09-01 | 杨瑞华 | Sound and light automatic controlling time delay lamp |
| CN201557092U (en) * | 2009-11-19 | 2010-08-18 | 上海第二工业大学 | Sound and light automatic control switch |
| CN103874264A (en) * | 2012-12-11 | 2014-06-18 | 江苏施诺照明有限公司 | Sound-and-light-controlled LED corridor light |
| CN204442808U (en) * | 2015-04-03 | 2015-07-01 | 河南昊晟电子科技有限公司 | A kind of corridor LED illumination lamp based on human body sensing |
| CN204965869U (en) * | 2015-09-22 | 2016-01-13 | 广西职业技术学院 | Sound and light control LED lamp circuit |
-
2015
- 2015-09-22 CN CN201510604085.9A patent/CN105070166A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2141633Y (en) * | 1992-10-10 | 1993-09-01 | 杨瑞华 | Sound and light automatic controlling time delay lamp |
| CN201557092U (en) * | 2009-11-19 | 2010-08-18 | 上海第二工业大学 | Sound and light automatic control switch |
| CN103874264A (en) * | 2012-12-11 | 2014-06-18 | 江苏施诺照明有限公司 | Sound-and-light-controlled LED corridor light |
| CN204442808U (en) * | 2015-04-03 | 2015-07-01 | 河南昊晟电子科技有限公司 | A kind of corridor LED illumination lamp based on human body sensing |
| CN204965869U (en) * | 2015-09-22 | 2016-01-13 | 广西职业技术学院 | Sound and light control LED lamp circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105764199A (en) * | 2016-04-28 | 2016-07-13 | 贵州恒晋科技有限公司 | Light sensation control type light emitting device with power supplying based on rotating speed |
| CN106793388A (en) * | 2016-12-07 | 2017-05-31 | 广西大学 | A kind of illuminating lamp acousto-optic inductive control circuit of stable work in work |
| CN108550306A (en) * | 2018-06-15 | 2018-09-18 | 广西职业技术学院 | A kind of heart rate for integrated operational amplifier circuit teaching synchronizes breath light |
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