CN201839486U - LED (light-emitting diode) body induction lamp circuit - Google Patents
LED (light-emitting diode) body induction lamp circuit Download PDFInfo
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- CN201839486U CN201839486U CN2010205559777U CN201020555977U CN201839486U CN 201839486 U CN201839486 U CN 201839486U CN 2010205559777 U CN2010205559777 U CN 2010205559777U CN 201020555977 U CN201020555977 U CN 201020555977U CN 201839486 U CN201839486 U CN 201839486U
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Abstract
The utility model relates to the technology of LED (light-emitting diode) illuminating lamp circuits, in particular to an LED body induction lamp circuit comprising a switching power supply conversion circuit, an LED lamp and a body induction processing circuit, wherein the input end of the switching power supply conversion circuit is connected with alternating current; the anode end of the LED lamp and the power input end of the body induction processing circuit are both connected with the output end of the switching power supply conversion circuit, and the cathode end of the LED lamp is connected with the input control end of the body induction processing circuit; and the output control end of the body induction processing circuit is grounded. In use, the body induction processing circuit can automatically control the on or off of the LED lamp by inducing walking of the body without manual control, therefore, the use is very convenient.
Description
Technical field
The utility model relates to LED floodlight circuit technology, relates in particular to a kind of LED human body sensing circuit for lamp.
Background technology
Because long service life, the energy consumption of LED (Light Emitting Diode, light-emitting diode) are low, energy savings is remarkable, LED is widely used in the daily life as light source.General LED lighting all can be provided with circuit board, and circuit board is provided with the circuit that is used to the LED power supply.
The circuit of LED lighting mainly comprises Switching Power Supply translation circuit, ON-OFF control circuit in the prior art, the input of Switching Power Supply translation circuit connects alternating current, the output of Switching Power Supply translation circuit is connected with LED, make the Switching Power Supply translation circuit alternating current can be converted to low-voltage DC, be the LED power supply, and ON-OFF control circuit is connected in the Switching Power Supply translation circuit, with the break-make of control power supply, and then the lighting or extinguish of control LED.But the ON-OFF control circuit of this LED floodlight circuit mostly is simple shift knob greatly, can only control lighting of LED or extinguishes by manual Push switch button, uses very inconvenient.
Summary of the invention
The purpose of this utility model is to provide a kind of LED human body sensing circuit for lamp easy to use at the deficiencies in the prior art, and it is walked about by the induction human body and controls lighting or extinguishing of LED lamp automatically.
The purpose of this utility model realizes by following technical measures: a kind of LED human body sensing circuit for lamp, it includes Switching Power Supply translation circuit, LED lamp, also comprise the human body sensing treatment circuit, the input of Switching Power Supply translation circuit connects alternating current, the power input of the positive terminal of LED lamp, human body sensing treatment circuit all is connected with the output of Switching Power Supply translation circuit, the negative pole end of LED lamp is connected with the input control end of human body sensing treatment circuit, the output control terminal ground connection of human body sensing treatment circuit.
Described human body sensing treatment circuit comprises the control and treatment chip, be used to respond to the transducer that human body walks about, first triode that is used to control LED lamp on/off, transducer is connected with the first input end of control and treatment chip, and first triode is connected with the control output end of control and treatment chip.
Described transducer is a pyroelectric infrared sensor.
The model of described control and treatment chip is LD0001.
Described human body sensing treatment circuit also comprises the light-inductive unit, and the light-inductive unit is connected with second input of control and treatment chip.
Described human body sensing treatment circuit further comprises indicator unit, and indicator unit is connected with the control output end of control and treatment chip.
Described Switching Power Supply translation circuit comprises that the DC/DC(direct current changes direct current) translation circuit, sampling feedback circuit and the elementary current rectifying and wave filtering circuit, transformer circuit, the secondary commutation filter circuit that connect successively, the input of sampling feedback circuit is connected with the output of secondary commutation filter circuit, the input of DC/DC translation circuit is connected with the output of sampling feedback circuit, and the output of DC/DC translation circuit is connected with the control end of transformer circuit.
Described DC/DC translation circuit comprises PWM(Pulse Width Modulation, pulse width modulation) the power switch chip, the model of this pwm power switch chip is OB2353.
Described LED lamp is composed in parallel by a plurality of LED.
Described LED is a white light LEDs.
The utility model beneficial effect is: the utility model includes Switching Power Supply translation circuit, LED lamp, also comprise the human body sensing treatment circuit, the input of Switching Power Supply translation circuit connects alternating current, the power input of the positive terminal of LED lamp, human body sensing treatment circuit all is connected with the output of Switching Power Supply translation circuit, the negative pole end of LED lamp is connected with the input control end of human body sensing treatment circuit, the output control terminal ground connection of human body sensing treatment circuit.In use, human body sensing treatment circuit of the present utility model can be walked about and controls lighting or extinguishing of LED lamp automatically by the induction human body, need not manual control, uses very convenient.
Description of drawings
Fig. 1 is the circuit theory diagrams of the Switching Power Supply translation circuit of a kind of LED human body inductive lamp circuit embodiments one of the present utility model.
Fig. 2 is the human body sensing treatment circuit of a kind of LED human body inductive lamp circuit embodiments one of the present utility model and the circuit theory diagrams of LED lamp.
Fig. 3 is the human body sensing treatment circuit of a kind of LED human body inductive lamp circuit embodiments two of the present utility model and the circuit theory diagrams of LED lamp.
In Fig. 1, Fig. 2 and Fig. 3, include:
11---elementary current rectifying and wave filtering circuit 12---transformer circuit
13---secondary commutation filter circuit 14---DC/DC translation circuit
141---pwm power switch chip 15---sampling feedback circuit
2---human body sensing treatment circuit 21---control and treatment chip
22---pyroelectric infrared sensors 23---, first triode
24---light-inductive unit 25---indicator unit
3---the LED lamp.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of LED human body sensing circuit for lamp of the present utility model, as shown in Figure 1, 2, it includes Switching Power Supply translation circuit, LED lamp 3, also comprises human body sensing treatment circuit 2, the input of Switching Power Supply translation circuit connects alternating current, and the voltage of this alternating current can be between 85 to 240V; The power input (IN_P) of the positive terminal of LED lamp 3 (LED+), human body sensing treatment circuit 2 all is connected with the output (OUT) of Switching Power Supply translation circuit, makes the Switching Power Supply translation circuit can be respectively LED lamp 3, human body sensing treatment circuit 2 provides working power; Wherein, the negative pole end of LED lamp 3 (LED-) is connected with the input control end of human body sensing treatment circuit 2, the output control terminal ground connection (GND) of human body sensing treatment circuit 2, make human body sensing treatment circuit 2 can control switching on or off of LED lamp 3 working powers, thereby corresponding control LED lamp 3 is lighted or is extinguished.
Human body sensing treatment circuit 2 comprises control and treatment chip 21, be used to respond to the transducer that human body walks about, first triode 23 that is used to control LED lamp 3 on/offs, transducer is connected with the first input end of control and treatment chip 21, and first triode 23 is connected with the control output end of control and treatment chip 21; Wherein, described transducer is a pyroelectric infrared sensor 22, the 1st pin of pyroelectric infrared sensor 22 is connected with the output of Switching Power Supply translation circuit by resistance R 27, the R24 of two series connection, the 2nd pin of pyroelectric infrared sensor 22 is connected the 3rd pin ground connection of pyroelectric infrared sensor 22 by resistance R 33 with the 14th pin of control and treatment chip 21; Wherein, the base stage of described first triode 23 is connected with the 2nd pin of control and treatment chip 21 by resistance R 20, the collector electrode of first triode 23 is the input control end of human body sensing treatment circuit 2, and the emitter of first triode 23 is the output control terminal of human body sensing treatment circuit 2; The model of described control and treatment chip 21 is LD0001.The operation principle of human body sensing treatment circuit 2 is: when pyroelectric infrared sensor 22 is sensed human body and walked about, can send induced signal and give the 14th pin of control and treatment chip 21, control and treatment chip 21 goes out the base stage that drive signal is given first triode 23 according to the induced signal of input by the 2nd human hair combing waste, make 23 conductings of first triode, and then the working power of LED lamp 3 is connected, thereby control LED lamp 3 is lighted; Otherwise, when pyroelectric infrared sensor 22 was not sensed human body and walked about, the 2nd pin of control and treatment chip 21 can not send drive signal, made first triode 23 by (being initial condition), and then the working power of LED lamp 3 is cut off, thereby control LED lamp 3 extinguishes.
Human body sensing treatment circuit 2 also comprises light-inductive unit 24, light-inductive unit 24 is connected with second input of control and treatment chip 21, more particularly, light-inductive unit 24 comprises photo resistance CDS, resistance R 25, R26, one end of resistance R 25 is connected with the output of Switching Power Supply translation circuit, the other end of resistance R 25 is connected with an end of resistance R 26, the 9th pin of control and treatment chip 21, the other end of resistance R 26 is connected with the end of photo resistance CDS, the other end ground connection of photo resistance CDS.The operation principle of light-inductive unit 24 is: when the ambient light illumination in the external world during less than the induction set point of photo resistance, as the 10LUX(lux), then the photo resistance meeting sends the signal of bright lamp on the 9th pin of control and treatment chip 21, if pyroelectric infrared sensor 22 also detected human body and walked about this moment, then control and treatment chip 21 goes out the base stage that drive signal is given first triode 23 by the 2nd human hair combing waste, make 23 conductings of first triode, and then the working power of LED lamp 3 is connected, thereby control LED lamp 3 is lighted.Certainly, in order to save electric energy, the human body sensing treatment circuit 2 of present embodiment can also add delay circuit, leave the induction range of pyroelectric infrared sensor 22 when human body, then delay circuit is started working, make LED lamp 3 light a period of time (as 30 seconds) after, extinguish automatically.
The Switching Power Supply translation circuit comprises DC/DC translation circuit 14, sampling feedback circuit 15, and the elementary current rectifying and wave filtering circuit 11 that connects successively, transformer circuit 12, secondary commutation filter circuit 13, the input of sampling feedback circuit 15 is connected with the output of secondary commutation filter circuit 13, the input of DC/DC translation circuit 14 is connected with the output of sampling feedback circuit 15, the output of DC/DC translation circuit 14 is connected with the control end of transformer circuit 12, makes DC/DC translation circuit 14 obtain feedback and the output voltage of control transformer circuit 12 by sampling feedback circuit 15.
DC/DC translation circuit 14 comprises pwm power switch chip 141, and the model of this pwm power switch chip 141 is OB2353.
Need to prove that the model and the parameter value of above-mentioned electronic devices and components are only for reference, when specifically implementing the technical program, can make amendment according to actual environment.
The utility model can be used as corridor lamp and is applied in the often someone place of walking about such as corridor, when pyroelectric infrared sensor 22 is sensed human body and is walked about, can send induced signal and give control and treatment chip 21, control and treatment chip 21 sends drive signal according to the induced signal of importing and makes 23 conductings of first triode, and then the working power of LED lamp 3 is connected, thereby control LED lamp 3 is lighted; When pyroelectric infrared sensor 22 was not sensed human body and walked about, control and treatment chip 21 can not send drive signal, and first triode 23 is ended, and then the working power of LED lamp 3 is cut off, thereby control LED lamp 3 extinguishes.Therefore, the utility model can be walked about and controls lighting or extinguishing of LED automatically by the induction human body, need not human body manually to control, and manipulates very convenient.
Two of the embodiment of a kind of LED human body sensing circuit for lamp of the present utility model, as shown in Figure 3, the difference of present embodiment and embodiment 1 is, human body sensing treatment circuit 2 further comprises indicator unit 25, indicator unit 25 is connected with the control output end of control and treatment chip 21, and wherein, indicator unit 25 comprises resistance R 19, R22, R23, the second triode Q2, indicator light LED21; One end of resistance R 22, the emitter of the second triode Q2 all are connected with the output of Switching Power Supply translation circuit, the other end of resistance R 22 is connected with base stage, resistance R 19 1 ends of the second triode Q2, the other end of resistance R 19 is connected with the 2nd pin of control and treatment chip 21, the collector electrode of the second triode Q2 is connected with the positive pole of indicator light LED21, the negative pole of indicator light LED21 is connected with an end of resistance R 23, the other end ground connection of resistance R 23.The operation principle of indicator unit 25 is: when the 2nd human hair combing waste of control and treatment chip 21 goes out drive signal control LED lamp 3 and lights, the base stage of the second triode Q2 receives the drive signal that control and treatment chip 21 the 2nd human hair combing waste goes out equally, the second triode Q2 is ended, thereby indicator light LED21 is extinguished because of outage; Otherwise, when the 2nd pin of control and treatment chip 21 does not send drive signal (being that LED lamp 3 extinguishes), the second triode Q2 conducting (being initial condition), thereby indicator light LED21 is lighted because of energising, with the attention of reminds people, wherein, indicator light LED21 is a red-light LED.Other structure of present embodiment is identical with embodiment 1, does not repeat them here.
Should be noted that at last; above embodiment is only in order to the explanation the technical solution of the utility model; but not to the restriction of the utility model protection range; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
Claims (10)
1. LED human body sensing circuit for lamp, it includes Switching Power Supply translation circuit, LED lamp, it is characterized in that: also comprise the human body sensing treatment circuit, the input of Switching Power Supply translation circuit connects alternating current, the power input of the positive terminal of LED lamp, human body sensing treatment circuit all is connected with the output of Switching Power Supply translation circuit, the negative pole end of LED lamp is connected with the input control end of human body sensing treatment circuit, the output control terminal ground connection of human body sensing treatment circuit.
2. LED human body sensing circuit for lamp according to claim 1, it is characterized in that: described human body sensing treatment circuit comprises the control and treatment chip, be used to respond to the transducer that human body walks about, first triode that is used to control LED lamp on/off, transducer is connected with the first input end of control and treatment chip, and first triode is connected with the control output end of control and treatment chip.
3. LED human body sensing circuit for lamp according to claim 2 is characterized in that: described transducer is a pyroelectric infrared sensor.
4. LED human body sensing circuit for lamp according to claim 2 is characterized in that: the model of described control and treatment chip is LD0001.
5. LED human body sensing circuit for lamp according to claim 2 is characterized in that: described human body sensing treatment circuit also comprises the light-inductive unit, and the light-inductive unit is connected with second input of control and treatment chip.
6. LED human body sensing circuit for lamp according to claim 2 is characterized in that: described human body sensing treatment circuit further comprises indicator unit, and indicator unit is connected with the control output end of control and treatment chip.
7. LED human body sensing circuit for lamp according to claim 2, it is characterized in that: described Switching Power Supply translation circuit comprises DC/DC translation circuit, sampling feedback circuit and the elementary current rectifying and wave filtering circuit, transformer circuit, the secondary commutation filter circuit that connect successively, the input of sampling feedback circuit is connected with the output of secondary commutation filter circuit, the input of DC/DC translation circuit is connected with the output of sampling feedback circuit, and the output of DC/DC translation circuit is connected with the control end of transformer circuit.
8. LED human body sensing circuit for lamp according to claim 7 is characterized in that: described DC/DC translation circuit comprises the pwm power switch chip, and the model of this pwm power switch chip is OB2353.
9. LED human body sensing circuit for lamp according to claim 7 is characterized in that: described LED lamp is composed in parallel by a plurality of LED.
10. LED human body sensing circuit for lamp according to claim 9 is characterized in that: described LED is a white light LEDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205559777U CN201839486U (en) | 2010-10-11 | 2010-10-11 | LED (light-emitting diode) body induction lamp circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205559777U CN201839486U (en) | 2010-10-11 | 2010-10-11 | LED (light-emitting diode) body induction lamp circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201839486U true CN201839486U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205559777U Expired - Fee Related CN201839486U (en) | 2010-10-11 | 2010-10-11 | LED (light-emitting diode) body induction lamp circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201839486U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013139002A1 (en) * | 2012-03-21 | 2013-09-26 | 深圳市讯宇创科技有限公司 | Induction lamp |
| CN103826358A (en) * | 2013-11-02 | 2014-05-28 | 宁波市镇海匡正电子科技有限公司 | Human-body-inductive intelligent solar LED street lamp power supply |
| CN106051550A (en) * | 2016-07-14 | 2016-10-26 | 广东红禾朗科技实业有限公司 | Portable night light |
-
2010
- 2010-10-11 CN CN2010205559777U patent/CN201839486U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013139002A1 (en) * | 2012-03-21 | 2013-09-26 | 深圳市讯宇创科技有限公司 | Induction lamp |
| CN103826358A (en) * | 2013-11-02 | 2014-05-28 | 宁波市镇海匡正电子科技有限公司 | Human-body-inductive intelligent solar LED street lamp power supply |
| CN106051550A (en) * | 2016-07-14 | 2016-10-26 | 广东红禾朗科技实业有限公司 | Portable night light |
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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: 20110518 Termination date: 20141011 |
|
| EXPY | Termination of patent right or utility model |