CN105050249A - Novel voice-activated LED lamp - Google Patents
Novel voice-activated LED lamp Download PDFInfo
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- CN105050249A CN105050249A CN201510371789.6A CN201510371789A CN105050249A CN 105050249 A CN105050249 A CN 105050249A CN 201510371789 A CN201510371789 A CN 201510371789A CN 105050249 A CN105050249 A CN 105050249A
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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 relates to a novel voice-activated LED lamp comprising a voice pickup module, an LED drive module, an LED light source, and an external heat dissipation element. The LED drive module is a light-adjustable constant-current drive circuit which includes a DC-DC booster module, a power-on gradual brightening module, a constant-current module, and a protection circuit. The voice pickup element is used to sense voice and convert a voice signal into a pulse signal capable of controlling the LED circuit. Therefore, on-off of the LED light source is controlled automatically, and the LED lamp is made intelligent. By designing the LED drive circuit, the system stability and conversion efficiency are improved. In addition, the heat dissipation problem of the LED lamp is solved effectively through the unique heat dissipation structure design. The novel voice-activated LED lamp of the invention has the advantages of high degree of intelligence, low cost, high stability, high conversion efficiency, high safety, and high practicability.
Description
Technical field
The present invention relates to automation lighting field, particularly relate to a kind of Novel sound control LED.
Background technology
LED is light-emitting diode, is the new technology grown up mid-term in 20th century.It is more direct luminous that it relies on the electronics in heterojunction semiconductor to be moved by the energy that potential barrier produces.The light fixture energy-conserving and environment-protective made by LED, overlong service life are the development directions of lighting technology.But as everyone knows, electric energy is a kind of non-renewable secondary energy sources, a kind of energy that the application of the Ye Shi world today is the most general.Under the situation of energy-saving and emission-reduction, energy savings particularly saves energy is an important strategic task.In numerous electric source lighting forms, most of light source cannot realize intelligentizedly lighting or extinguishing, and lights the injury in loss and the lamp source certainly will causing electric energy for a long time.
In numerous electric source lighting forms, most of light source cannot realize intelligentizedly lighting or extinguishing, and lights the injury in loss and the lamp source certainly will causing electric energy for a long time, therefore, is necessary to design a kind of acoustic control lamp, thus promotes the intelligent of LED.The key of acoustic control lamp is audio-switch, full name is sound control delay switch, be a kind of in non-contact-point, adopt effects,sound to excite pick-up to carry out under specific environment light unlatching that acoustic-electric conversion controls electrical appliance, and can the energy-saving electronic switch of auto power off after time delay.This Delayed illumination control switch can eliminate altar lamp, saves energy effectively, plays control action, with electrical energy saving.
In addition, the stability of a system of LED and conversion efficiency all await further raising, and by using feedback half-bridge DC-DC converter, the internal relation between Study system stability and circuit parameter, can promote stability and the conversion efficiency of LED.
In sum, research and develop a kind of low cost, high stability, high conversion efficiency, high security and there is intelligent sound controlled LED light complied with the active demand that people live for high-quality, contribute to energy-conserving and environment-protective and promote people's quality of life.
Summary of the invention
For this reason, the invention provides a kind of Novel sound control LED, the present invention utilizes pick-up element to experience sound, and voice signal is converted into the pulse signal that can control LED circuit, thus automatically control lighting and extinguishing of LED lamp source, achieve the intellectuality of LED, by design LED drive circuit, the energy raising stability of a system much of that and conversion efficiency, in addition, unique heat radiation structure design efficiently solves the heat dissipation problem of LED, the intelligent high and low cost of the present invention, stability is high, and conversion efficiency is high, fail safe is high, possesses good practicality.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
A kind of Novel sound control LED, comprises pickup module, LED drive module, LED lamp source and external heat radiation part,
Described pickup module comprises Electret condenser microphone, amplifying circuit, shaping circuit and delay circuit, after described Electret condenser microphone receives the voice signal of some strength, voice signal is converted to voltage signal, described voltage signal is after amplification, shaping, and monostable delay circuit, produces a broad-adjustable pulse signal, extend described pulse signal steady state time simultaneously, described pulse signal transmission, to LED drive module, is lighted for driving LED
Described LED drive module is tunable optical constant-current type drive circuit; described drive circuit comprises DC-DC boost module, power on gradually bright module, constant flow module and protective circuit; the described gradually bright module that powers on is made up of electric capacity, diode and voltage stabilizing didoe; inhibitory action is played to the womp of LED; the current break of described protective circuit for preventing load open circuit from causing
Described external heat radiation part comprises fin and axial flow blower, is dispelled the heat by fin and axial flow blower simultaneously.
Preferably, when input voltage is less than described DC-DC boost module nominal voltage, described DC-DC boost module exports boosting, when input voltage is greater than the nominal voltage of described DC-DC boost module, and described DC-DC boost module output buck.
Preferably, described axial flow blower is quiet axial flow blower.
Preferably, described fin quantity is 4-18.
Preferably, described amplifying circuit is cascode level basic amplifier circuit, described amplifying circuit output voltage and input voltage anti-phase, and there is the ability of voltage amplification, can regulation voltage multiplication factor by regulating resistance.
Preferably, burst signal shaping is become the square-wave signal with certain time length by described shaping circuit.
Preferably, described shaping circuit comprises Schmitt trigger circuit.
Preferably, described LED lamp source quantity is 6-10.
The invention has the beneficial effects as follows:
The invention provides a kind of Novel sound control LED, the present invention utilizes pick-up element to experience sound, and voice signal is converted into the pulse signal that can control LED circuit, thus automatically control lighting and extinguishing of LED lamp source, achieve the intellectuality of LED, by design LED drive circuit, the energy raising stability of a system much of that and conversion efficiency, in addition, unique heat radiation structure design efficiently solves the heat dissipation problem of LED, the intelligent high and low cost of the present invention, stability is high, conversion efficiency is high, and fail safe is high, possesses good practicality.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below the present invention is described in further detail.
In one embodiment, a kind of Novel sound control LED, comprises pickup module, LED drive module, LED lamp source and external heat radiation part,
Described pickup module comprises Electret condenser microphone, amplifying circuit, shaping circuit and delay circuit, after described Electret condenser microphone receives the voice signal of some strength, voice signal is converted to voltage signal, described voltage signal is after amplification, shaping, and monostable delay circuit, produces a broad-adjustable pulse signal, extend described pulse signal steady state time simultaneously, described pulse signal transmission, to LED drive module, is lighted for driving LED
Described LED drive module is tunable optical constant-current type drive circuit; described drive circuit comprises DC-DC boost module, power on gradually bright module, constant flow module and protective circuit; the described gradually bright module that powers on is made up of electric capacity, diode and voltage stabilizing didoe; inhibitory action is played to the womp of LED; the current break of described protective circuit for preventing load open circuit from causing
Described external heat radiation part comprises fin and axial flow blower, is dispelled the heat by fin and axial flow blower simultaneously.
Preferably, when input voltage is less than described DC-DC boost module nominal voltage, described DC-DC boost module exports boosting, when input voltage is greater than the nominal voltage of described DC-DC boost module, and described DC-DC boost module output buck.
Concrete, DC-DC boost module is that the typical circuit transformation of the way in the data provided by MP2307 chip manufacturer forms.MP2307 exemplary reference voltage VFB=0.925V, as the 5 little dry VFB of end input voltage of MP2307 chip, circuit exports boosting, circuit output buck when being greater than VFB, otherwise circuit output voltage remains unchanged.
Using the superposition value from three ends reference voltage source TL341 able to programme and Rsamp voltage in described constant flow module, by regulating variable-resistance resistance to realize the constant control to output current, reaching the object of light modulation.
Described protective circuit, when output voltage exceedes setting protection voltage (28V), ensure that the input voltage of input MP2307 equals VFB by bleeder circuit, circuit output voltage remains unchanged, and plays the protective effect to circuit.When causing this defencive function to lose efficacy because of other reasons, output voltage control at 30V, is played the effect of duplicate protection by supplementary protection voltage stabilizing didoe.
Preferably, described axial flow blower is quiet axial flow blower.
Preferably, described fin quantity is 4-18.
Preferably, described amplifying circuit is cascode level basic amplifier circuit, described amplifying circuit output voltage and input voltage anti-phase, and there is the ability of voltage amplification, can regulation voltage multiplication factor by regulating resistance.
Preferably, burst signal shaping is become the square-wave signal with certain time length by described shaping circuit.
Preferably, described shaping circuit comprises Schmitt trigger circuit.
Preferably, described LED lamp source quantity is 6-10.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (8)
1. a Novel sound control LED, is characterized in that, comprises pickup module, LED drive module, LED lamp source and external heat radiation part,
Described pickup module comprises Electret condenser microphone, amplifying circuit, shaping circuit and delay circuit, after described Electret condenser microphone receives the voice signal of some strength, voice signal is converted to voltage signal, described voltage signal is after amplification, shaping, and Time delay circuit, produces a broad-adjustable pulse signal, extend described pulse signal steady state time simultaneously, described pulse signal transmission, to LED drive module, is lighted for driving LED
Described LED drive module is tunable optical constant-current type drive circuit; described drive circuit comprises DC-DC boost module, power on gradually bright module, constant flow module and protective circuit; the described gradually bright module that powers on is made up of electric capacity, diode and voltage stabilizing didoe; inhibitory action is played to the womp of LED; the current break of described protective circuit for preventing load open circuit from causing
Described external heat radiation part comprises fin and axial flow blower, is dispelled the heat by fin and axial flow blower simultaneously.
2. a kind of Novel sound control LED according to claim 1, it is characterized in that, when input voltage is less than described DC-DC boost module nominal voltage, described DC-DC boost module exports boosting, when input voltage is greater than the nominal voltage of described DC-DC boost module, described DC-DC boost module output buck.
3. a kind of Novel sound control LED according to claim 2, is characterized in that, described axial flow blower is quiet axial flow blower.
4. a kind of Novel sound control LED according to claim 3, is characterized in that, described fin quantity is 4-18.
5. according to a kind of Novel sound control LED in claim 1-4 described in any one, it is characterized in that, described amplifying circuit is cascode level basic amplifier circuit, described amplifying circuit output voltage and input voltage anti-phase, and there is the ability of voltage amplification, can regulation voltage multiplication factor by regulating resistance.
6. a kind of Novel sound control LED according to claim 5, it is characterized in that, burst signal shaping is become the square-wave signal with certain time length by described shaping circuit.
7. a kind of Novel sound control LED according to claim 6, it is characterized in that, described shaping circuit comprises Schmitt trigger circuit.
8. a kind of Novel sound control LED according to claim 7, is characterized in that, described LED lamp source quantity is 6-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371789.6A CN105050249A (en) | 2015-06-29 | 2015-06-29 | Novel voice-activated LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371789.6A CN105050249A (en) | 2015-06-29 | 2015-06-29 | Novel voice-activated LED lamp |
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| CN105050249A true CN105050249A (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510371789.6A Pending CN105050249A (en) | 2015-06-29 | 2015-06-29 | Novel voice-activated LED lamp |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395235A (en) * | 2011-11-04 | 2012-03-28 | 深圳市新超亮特种显示设备有限公司 | Energy saving lamp box control circuit and energy saving lamp box |
| US20130162139A1 (en) * | 2011-12-22 | 2013-06-27 | Foxconn Technology Co., Ltd. | Light emitting diode bulbs with high heat dissipating efficiency |
-
2015
- 2015-06-29 CN CN201510371789.6A patent/CN105050249A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395235A (en) * | 2011-11-04 | 2012-03-28 | 深圳市新超亮特种显示设备有限公司 | Energy saving lamp box control circuit and energy saving lamp box |
| US20130162139A1 (en) * | 2011-12-22 | 2013-06-27 | Foxconn Technology Co., Ltd. | Light emitting diode bulbs with high heat dissipating efficiency |
Non-Patent Citations (1)
| Title |
|---|
| 付春: "基于DC-DC升压恒流控制的大功率LED驱动电路实现", 《中国科技信息》 * |
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