CN202759623U - LED sound-controlled lamp - Google Patents
LED sound-controlled lamp Download PDFInfo
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- CN202759623U CN202759623U CN 201220162145 CN201220162145U CN202759623U CN 202759623 U CN202759623 U CN 202759623U CN 201220162145 CN201220162145 CN 201220162145 CN 201220162145 U CN201220162145 U CN 201220162145U CN 202759623 U CN202759623 U CN 202759623U
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Abstract
The utility model provides an LED sound-controlled lamp, comprising an LED light source, a constant-current circuit for providing constant direct current to the LED light source, a microphone for receiving outside sound and outputting an electric signal to a signal amplifying circuit, the signal amplifying circuit for receiving and amplifying the electric signal that is outputted by the microphone, a time delay circuit for controlling the time for illumination by the LED light source with the first brightness after the sound stops, a buffer circuit for receiving signals from the signal amplifying circuit and the time delay circuit, with an output terminal being coupled to a control terminal of a first control circuit of a dimming circuit, and the dimming circuit which is connected in series with the LED light source and comprises the first control circuit and the second control circuit in parallel connection, wherein the first control circuit controls the LED light source to illuminate with the first brightness, and the second control circuit controls the LED light source to illuminate with the second brightness. The LED sound-controlled lamp of the utility model is low in energy consumption and long in service lifetime and realizes the integrated design.
Description
Technical field
The utility model relates to lighting technical field, particularly a kind of LED acoustic control lamp.
Background technology
Modern society is because the city space is more and more crowded, so the application of the underground space is more and more general, the underground space relies on electric source lighting fully.The underground space as the parking lot, few people walk about at ordinary times, but must guarantee 24 hours illumination again, have so just caused very large energy waste.
Current underground space illumination is the power supply of 220V electric main, and circuit can only compatible incandescent lamp be the load of light source.The energy consumption of incandescent lamp is large, and light efficiency is low, can waste a large amount of energy and produce more greenhouse gas emission.It is short that the another one shortcoming of incandescent lamp is exactly useful life, and service time, generally about 3000 hours, some ropy incandescent lamp can only use 1500 hours.
The utility model content
The technical problems to be solved in the utility model is that existing underground space illuminator lamp will keep illumination in 24 hours, and energy consumption is huge, and useful life is short.
For solving the problems of the technologies described above, the utility model provides a kind of LED acoustic control lamp, comprising: led light source; Constant current circuit is couple to led light source, provides constant direct current to led light source; Microphone receives external voice, and output electrical signals is to signal amplification circuit; Signal amplification circuit, the signal of telecommunication of reception microphone output also amplifies, and will be sent to buffer circuit through the signal of telecommunication that amplifies; Delay circuit is couple to buffer circuit, and led light source was with the time of the first brightness illumination after control sound stopped; Buffer circuit, the signal of reception signal amplification circuit and delay circuit, lead-out terminal is couple to the control end of the first control circuit of light adjusting circuit; With the light adjusting circuit that led light source is connected in series, comprise the first control circuit and the second control circuit that are connected in parallel, first control circuit control led light source throws light on the first brightness, and second control circuit control led light source throws light on the second brightness.
Alternatively, described first control circuit is the controlled transistor that is connected in series with led light source.
Alternatively, described second control circuit is the resistor that is connected in series with led light source.
Alternatively, described constant current circuit comprises the first capacitor, the first resistor, the second resistor and rectifier circuit, the first capacitor and the first resistor are connected in parallel, the first public terminal of the first capacitor and the first resistor is couple to AC power, the second public terminal is couple to first input end of rectifier circuit, the second input terminal of rectifier circuit is couple to AC power, the first lead-out terminal of rectifier circuit is couple to the second resistor, and the second lead-out terminal is couple to earth potential.
Alternatively, described microphone is Electret condenser microphone.
Alternatively, described signal amplification circuit comprises the second capacitor, the 4th resistor, the 5th resistor and the first operational amplifier, the first terminal of the second capacitor is couple to microphone, the positive input of the first operational amplifier that the second terminal is couple to, the reverse input end of the first operational amplifier is couple to the first terminal of the 4th resistor and the first terminal of the 5th resistor, the second terminal of the 4th resistor is couple to the output of the first operational amplifier, and the second terminal of the 5th resistor is couple to earth potential.
Alternatively, described delay circuit comprises the 6th resistor and the 3rd capacitor, the first terminal of the 6th resistor is couple to the output of the first operational amplifier, and the second terminal is couple to the first terminal and the buffer circuit of the 3rd capacitor, and the second terminal of the 3rd capacitor is couple to earth potential.
Alternatively, described buffer circuit comprises the second operational amplifier, the positive input of the second operational amplifier is couple to the second terminal of the 6th resistor, and reverse input end is couple to its output, and the output of the second operational amplifier is couple to the control end of first control circuit.
Alternatively, described LED acoustic control lamp also comprises direct voltage source, described direct voltage source comprises the 3rd resistor and the voltage-stabiliser tube that is connected in series, the first terminal of the 3rd resistor is couple to the first lead-out terminal of rectifier circuit, the anode of voltage-stabiliser tube is couple to earth potential, and the second terminal of the 3rd resistor and the public terminal of voltage-stabiliser tube negative electrode are the lead-out terminal of direct voltage source.
Alternatively, described LED acoustic control lamp is the integrated design.
The beneficial effects of the utility model are:
(1) adopt LED as the light source of acoustic control lamp, energy consumption is low, long service life;
When (2) someone passed through, led light source threw light on the first brightness; After the people passed through, through the time-delay of certain hour, led light source changed the second brightness illumination automatically over to, has saved mass energy.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the circuit block diagram of the utility model LED acoustic control lamp;
Fig. 2 is the circuit theory diagrams of the utility model LED acoustic control lamp.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Figure 1 shows that the circuit block diagram of the utility model LED acoustic control lamp.
As shown in Figure 1, the LED acoustic control lamp comprises: the led light source 101 that is used for underground space illumination; Constant current circuit 103 is couple to led light source 101, and the alternating current that mains supply is provided is converted to constant direct current and offers led light source 101; Microphone 106 is used for receiving external voice, and output electrical signals is to signal amplification circuit 107; Signal amplification circuit 107, the signal of telecommunication of reception microphone 106 outputs also amplifies, and the signal of telecommunication that output is amplified is to buffer circuit 105; Delay circuit 104 is couple to buffer circuit 105, and led light source 101 was with the time of the first brightness illumination after control sound stopped; Buffer circuit 105, the signal of reception signal amplification circuit 107 and delay circuit 104, lead-out terminal is couple to the control end of the first control circuit of light adjusting circuit 102; Light adjusting circuit 102, be connected in series with led light source 101, comprise first control circuit 108 and second control circuit 109, first control circuit 108 and second control circuit 109 are connected in parallel, and the control end of first control circuit 108 is couple to the lead-out terminal of buffer circuit 105.
When having the people to pass through, microphone 106 receives voice signal, and first control circuit 108 control led light sources 101 throw light on the first brightness; After the people passed through, after the delay time through delay circuit 104 settings, second control circuit 109 control led light sources threw light on the second brightness.
Figure 2 shows that the circuit theory diagrams of the utility model LED acoustic control lamp.
As shown in Figure 2, capacitor C1, resistor R1, rectifier circuit D1 and resistor R2 form a typical capacitance-resistance step down type constant current circuit, and the direct current of current constant can be provided to led light source.Capacitor C1 and resistor R1 are connected in parallel, the first public terminal of capacitor C1 and resistor R1 is couple to AC power, the second public terminal is couple to first input end of rectifier circuit D1, the second input terminal of rectifier circuit D1 is couple to AC power, the first lead-out terminal of rectifier circuit D1 is couple to resistor R2, and the second lead-out terminal is couple to earth potential.The second terminal of resistor R2 is couple to led light source.
As shown in Figure 2, microphone is Electret condenser microphone MK1, and when receiving the sound such as footsteps, s cough, Electret condenser microphone MK1 can produce the faint signal of telecommunication and be sent to signal amplification circuit.
Signal amplification circuit comprises operational amplifier IC1, resistor R4, resistor R5 and capacitor C2.The first terminal of capacitor C2 is couple to the output of Electret condenser microphone MK1, the second terminal is couple to the positive input of operational amplifier IC1, the reverse input end of operational amplifier IC1 is couple to the first terminal of resistor R4 and the first terminal of resistor R5, the second terminal of resistor R4 is couple to the output of operational amplifier IC1, and the second terminal of resistor R5 is couple to earth potential.After the signal of telecommunication of Electret condenser microphone MK1 output amplifies through operational amplifier IC1, be input to the positive input of operational amplifier IC2 by resistor R6.
Delay circuit comprises resistor R6 and capacitor C3, after stopping for sound, led light source can be continued with the first brightness illumination a period of time.The first terminal of resistor R6 is couple to the output of operational amplifier IC1, and the second terminal is couple to the first terminal of capacitor C3 and the positive input of operational amplifier IC2, and the second terminal of capacitor C3 is couple to earth potential.Can adjust delay time by the resistance of adjusting resistance device R6, the resistance of resistor R6 becomes that greatly then delay time is elongated, and resistor R6 resistance diminishes then that delay time shortens.
Operational amplifier IC2 is buffer circuit, and the positive input of operational amplifier IC2 is couple to resistor R6 and public terminal capacitor C3, and the reverse input end of operational amplifier IC2 is couple to its output.
Light adjusting circuit comprises first control circuit and second control circuit, and as shown in Figure 2, one-way SCR transistor Q1 is first control circuit, and the control led light source throws light on the first brightness.The anode of one-way SCR transistor Q1 is couple to the LED string, and negative electrode is couple to earth potential, and control end is couple to the output of operational amplifier IC2.Resistor R7 and one-way SCR transistor Q1 are connected in parallel, and throw light on the second brightness as second control circuit control led light source.One-way SCR transistor Q1 only is that schematically those skilled in the art can select any suitable controlled transistor to replace as first control circuit.Resistor R7 only is that schematically those skilled in the art can select any suitable bleeder circuit to replace as second control circuit.
When nobody passes through, Electret condenser microphone MK1 does not receive voice signal, the current potential of operational amplifier IC2 output is low level, one-way SCR transistor Q1 is off state, the operating current of LED string flows through resistor R7 to earth potential, because the dividing potential drop effect of resistor R7, the LED string throws light on the second brightness.
When having the people to pass through, Electret condenser microphone MK1 receives voice signal, the signal of telecommunication is through the amplification of signal amplification circuit, positive input at operational amplifier IC2 forms high level, operational amplifier IC2 output is high level, one-way SCR transistor Q1 conducting, the operating current of LED string flows through one-way SCR transistor Q1 to earth potential.Because one-way SCR transistor Q1 conducting resistance is very little, the LED string throws light on the first brightness.
After people's process, Electret condenser microphone MK1 does not receive voice signal, and the output of operational amplifier IC1 is low level, but stores electric charge on the capacitor C3, and the positive input of operational amplifier IC2 remains high level.Capacitor C3 is by resistor R6 discharge, when the voltage on the capacitor C3 is lower than the voltage of operational amplifier IC2 reverse input end, the output of operational amplifier IC2 becomes low level, one-way SCR transistor Q1 is turned off, the operating current of LED string flows through resistor R7 to earth potential, and the LED string throws light on the second brightness.The time that capacitor C3 discharges into voltage on the operational amplifier IC2 reverse input end is delay time, and it is large that the resistance of resistor R6 becomes, and discharge time is elongated, and then delay time is elongated; Resistor R6 resistance diminishes, and shorten discharge time, and then delay time shortens.
LED acoustic control lamp circuit of the present invention as shown in Figure 2, resistor R3 and 5.1V voltage-stabiliser tube D2 form the direct voltage source of a 5.1V.The first terminal of resistor R3 is couple to the first lead-out terminal of rectifier circuit D1, the anode of voltage-stabiliser tube D2 is couple to earth potential, the public terminal of the second terminal of resistor R3 and the negative electrode of voltage-stabiliser tube D2 is the lead-out terminal of direct voltage source, and direct voltage source provides operating voltage to operational amplifier IC1 and IC2.
Control circuit of the present utility model and led light source can be encapsulated in a light fixture or the bulb, do not need extra circuit to cooperate and just can realize voice control function, have realized integrated design.
The control circuit of the utility model LED acoustic control lamp and led light source also can be separated structures.
LED acoustic control lamp of the present utility model adopts LED as light source, and energy consumption is low, long service life; When someone passed through, led light source threw light on the first brightness; After the people passed through, through time-delay after a while, led light source changed the second brightness illumination automatically over to, has saved mass energy.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. a LED acoustic control lamp is characterized in that, comprising:
Led light source;
Constant current circuit is couple to led light source, provides constant direct current to led light source;
Microphone receives external voice, and output electrical signals is to signal amplification circuit;
Signal amplification circuit, the signal of telecommunication of reception microphone output also amplifies, and will be sent to buffer circuit through the signal of telecommunication that amplifies;
Delay circuit is couple to buffer circuit, and led light source was with the time of the first brightness illumination after control sound stopped;
Buffer circuit, the signal of reception signal amplification circuit and delay circuit, lead-out terminal is couple to the control end of the first control circuit of light adjusting circuit;
With the light adjusting circuit that led light source is connected in series, comprise the first control circuit and the second control circuit that are connected in parallel, first control circuit control led light source throws light on the first brightness, and second control circuit control led light source throws light on the second brightness.
2. LED acoustic control lamp according to claim 1 is characterized in that, described first control circuit is the controlled transistor that is connected in series with led light source.
3. LED acoustic control lamp according to claim 1 is characterized in that, described second control circuit is the resistor that is connected in series with led light source.
4. LED acoustic control lamp according to claim 1, it is characterized in that, described constant current circuit comprises the first capacitor, the first resistor, the second resistor and rectifier circuit, the first capacitor and the first resistor are connected in parallel, the first public terminal of the first capacitor and the first resistor is couple to AC power, the second public terminal is couple to first input end of rectifier circuit, the second input terminal of rectifier circuit is couple to AC power, the first lead-out terminal of rectifier circuit is couple to the second resistor, and the second lead-out terminal is couple to earth potential.
5. LED acoustic control lamp according to claim 1 is characterized in that, described microphone is Electret condenser microphone.
6. LED acoustic control lamp according to claim 1, it is characterized in that, described signal amplification circuit comprises the second capacitor, the 4th resistor, the 5th resistor and the first operational amplifier, the first terminal of the second capacitor is couple to microphone, the second terminal is couple to the positive input of the first operational amplifier, the reverse input end of the first operational amplifier is couple to the first terminal of the 4th resistor and the first terminal of the 5th resistor, the second terminal of the 4th resistor is couple to the output of the first operational amplifier, and the second terminal of the 5th resistor is couple to earth potential.
7. LED acoustic control lamp according to claim 6, it is characterized in that, described delay circuit comprises the 6th resistor and the 3rd capacitor, the first terminal of the 6th resistor is couple to the output of the first operational amplifier, the second terminal is couple to the first terminal and the buffer circuit of the 3rd capacitor, and the second terminal of the 3rd capacitor is couple to earth potential.
8. LED acoustic control lamp according to claim 7, it is characterized in that, described buffer circuit comprises the second operational amplifier, the positive input of the second operational amplifier is couple to the second terminal of the 6th resistor, reverse input end is couple to its output, and the output of the second operational amplifier is couple to the control end of first control circuit.
9. LED acoustic control lamp according to claim 1, it is characterized in that, also comprise direct voltage source, described direct voltage source comprises the 3rd resistor and the voltage-stabiliser tube that is connected in series, the first terminal of the 3rd resistor is couple to the first lead-out terminal of rectifier circuit, the anode of voltage-stabiliser tube is couple to earth potential, and the second terminal of the 3rd resistor and the public terminal of voltage-stabiliser tube negative electrode are the lead-out terminal of direct voltage source.
10. according to claim 1 to 9 each described LED acoustic control lamps, it is characterized in that described LED acoustic control lamp is the integrated design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162145 CN202759623U (en) | 2012-04-17 | 2012-04-17 | LED sound-controlled lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162145 CN202759623U (en) | 2012-04-17 | 2012-04-17 | LED sound-controlled lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202759623U true CN202759623U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220162145 Expired - Fee Related CN202759623U (en) | 2012-04-17 | 2012-04-17 | LED sound-controlled lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202759623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277703A (en) * | 2013-06-27 | 2013-09-04 | 苏州工业园区依利电子贸易有限公司 | Sound control lamp |
-
2012
- 2012-04-17 CN CN 201220162145 patent/CN202759623U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277703A (en) * | 2013-06-27 | 2013-09-04 | 苏州工业园区依利电子贸易有限公司 | Sound control lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150417 |
|
| EXPY | Termination of patent right or utility model |