CN202374523U - Light emitting diode (LED) human body induction lamp - Google Patents
Light emitting diode (LED) human body induction lamp Download PDFInfo
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- CN202374523U CN202374523U CN2011205256393U CN201120525639U CN202374523U CN 202374523 U CN202374523 U CN 202374523U CN 2011205256393 U CN2011205256393 U CN 2011205256393U CN 201120525639 U CN201120525639 U CN 201120525639U CN 202374523 U CN202374523 U CN 202374523U
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- 239000003990 capacitor Substances 0.000 claims description 8
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- 238000005516 engineering process Methods 0.000 description 2
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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
本实用新型涉及一种LED人体感应灯电路，包括输入端与市电相连的、用于将交流电转换成直流电的交流电整流滤波电路，人体感应处理电路、LED灯，其特征在于：还包括恒流电源电路、降压电路和三极管开关电路，其中恒流电源电路输入端和降压电路输入端与交流电整流滤波电路输出端连接；降压电路输出端与人体感应处理电路连接；人体感应处理电路信号输出端与三极管开关电路信号输入端连接，三极管开关电路信号输出端与恒流电源电路连接以控制恒流电源电路的开关；恒流电源电路输出端与LED灯连接。与现有技术相比，本实用新型的优点在于：本实用新型提供的LED人体感应灯通过人体感应处理电路控制恒流电源的三极管开关电路，使得LED灯工作在恒流模式下。
The utility model relates to an LED human body induction lamp circuit, which comprises an AC rectification and filter circuit for converting alternating current into direct current, a human body induction processing circuit and an LED lamp, and is characterized in that it also includes a constant current Power supply circuit, step-down circuit and triode switch circuit, wherein the input end of the constant current power supply circuit and the input end of the step-down circuit are connected with the output end of the AC rectification filter circuit; the output end of the step-down circuit is connected with the human body induction processing circuit; the human body induction processing circuit signal The output terminal is connected with the signal input terminal of the triode switch circuit, and the signal output terminal of the triode switch circuit is connected with the constant current power supply circuit to control the switch of the constant current power supply circuit; the output terminal of the constant current power supply circuit is connected with the LED lamp. Compared with the prior art, the utility model has the advantages that: the LED human body induction lamp provided by the utility model controls the triode switching circuit of the constant current power supply through the human body induction processing circuit, so that the LED lamp works in the constant current mode.
Description
Technical field
The utility model relates to a kind of LED human body inductive lamp.
Background technology
The LED lamp is compared with incandescent lamp and fluorescent lamp, has energy-efficiently, and the life-span is long, and response speed is fast, and environmental protection, shatter-proof, shock-resistantly is difficult for advantages such as broken, pollution-free.
Notification number is that (patent No. is CN 201839486U: the disclosed a kind of LED human body sensing circuit for lamp of utility model patent ZL201020555977.7); It comprises Switching Power Supply translation circuit, LED lamp and human body sensing treatment circuit, and the LED lamp all is connected with Switching Power Supply translation circuit output with the human body sensing treatment circuit.This Switching Power Supply translation circuit is constant voltage output, and the LED lamp comes current limliting not have good constant current effect with resistance, influences LED and goes out light effect and life-span.And the disclosed LED human body sensing of this utility model circuit for lamp do not have Chang Kai and normally closed function, and the scope of application has certain limitation.
The utility model content
The utility model technical problem to be solved is the LED human body inductive lamp that a kind of LED constant current work is provided to above-mentioned prior art.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this LED human body sensing circuit for lamp; Comprise that input links to each other with civil power, be used for converting alternating current to galvanic AC rectification filter circuit; Human body sensing treatment circuit, LED lamp; It is characterized in that: also comprise constant-current power supply circuit, reduction voltage circuit and transistor switching circuit, wherein the constant-current power supply circuit input is connected with AC rectification filter circuit output with the reduction voltage circuit input; The reduction voltage circuit output is connected with the human body sensing treatment circuit; Human body sensing treatment circuit signal output part is connected with the transistor switching circuit signal input part, and the transistor switching circuit signal output part is connected the switch with the control constant-current power supply circuit with constant-current power supply circuit; The constant-current power supply circuit output is connected with the LED lamp.
As improvement; The LED human body sensing circuit for lamp that the utility model provides; Comprise that also one has the toggle switch of three retaining outputs; The output of said reduction voltage circuit links to each other with the power input of said toggle switch, and the first retaining output of said toggle switch, the second retaining output and the 3rd retaining output all link to each other with the power input of said human body sensing treatment circuit, is used to break off or the power supply of the said human body sensing treatment circuit of conducting; The second retaining output of said toggle switch also links to each other with the power input of said transistor switching circuit.
Above-mentioned AC rectification filter circuit, constant-current power supply circuit, reduction voltage circuit and human body sensing treatment circuit all adopt custom circuit.
As improvement; Said transistor switching circuit comprises first triode, second triode, first resistance, second resistance, first electric capacity, second electric capacity, and wherein, the base stage of first triode links to each other with the second retaining output of said toggle switch; The grounded emitter of first triode; The collector electrode of first triode links to each other with the base stage of second triode, the grounded emitter of second triode, and the collector electrode of second triode links to each other with constant-current power supply circuit after connecting said first resistance; The collector electrode of said first triode links to each other with constant-current power supply circuit after connecting said second resistance; In addition, said first electric capacity is connected between the base stage and ground of first triode, and said second electric capacity is connected between the base stage and ground of said second triode.
Compared with prior art, the advantage of the utility model is: the LED human body inductive lamp that the utility model provides makes the LED lamp be operated under the constant current mode through the transistor switching circuit of human body sensing processing circuit controls constant-current supply.
Description of drawings
Fig. 1 is the electrical block diagram of the utility model embodiment one.
Fig. 2 is the circuit theory diagrams of transistor switching circuit among the utility model embodiment one.
Fig. 3 is the electrical block diagram of the utility model embodiment two.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Embodiment one
Referring to LED human body sensing circuit for lamp shown in Figure 1; It comprises that input links to each other with civil power, be used for converting alternating current to galvanic AC rectification filter circuit 1; Human body sensing treatment circuit 2, LED lamp 3; Constant-current power supply circuit 4, reduction voltage circuit 5 and transistor switching circuit 6, wherein constant-current power supply circuit input 4 is connected with AC rectification filter circuit output 1 with reduction voltage circuit 5 inputs; Reduction voltage circuit 5 outputs are connected with human body sensing treatment circuit 2; Human body sensing treatment circuit 2 signal output parts are connected with transistor switching circuit 6 signal input parts, and transistor switching circuit signal 6 outputs are connected the switch with control constant-current power supply circuit 4 with constant-current power supply circuit 4; Constant-current power supply circuit 6 outputs are connected with LED lamp 3.
In the present embodiment, AC rectification filter circuit 1, constant-current power supply circuit 4, reduction voltage circuit 5 and human body sensing treatment circuit 2 all adopt custom circuit.
In the present embodiment, said triode switch electricity 6 tunnel comprises the first triode Q1, the second triode Q2, first resistance R 1, second resistance R 2, first capacitor C 1, second capacitor C 2, wherein; The base stage of the first triode Q1 links to each other with the output of said reduction voltage circuit 5; The grounded emitter of the first triode Q1, the collector electrode of the first triode Q1 links to each other with the base stage of the second triode Q2, the grounded emitter of the second triode Q2; The collector electrode of the second triode Q2 connects said first resistance R 1 back and links to each other with constant-current power supply circuit 2; The collector electrode of the said first triode Q1 connects said second resistance R 2 backs and links to each other with constant-current power supply circuit 2, and in addition, said first capacitor C 1 is connected between the base stage and ground of the first triode Q1; Said second capacitor C 1 is connected between the base stage and ground of the said second triode Q2, referring to shown in Figure 2.
After human body sensing treatment circuit 2 is started working; If human body sensing treatment circuit 2 detects ambient brightness greater than certain brightness (like 30LUX); Human body sensing treatment circuit 2 output output low levels; The first triode Q1 of transistor switching circuit 6, the second triode Q2 conducting, constant-current power supply circuit 4 is not worked, and the LED lamp extinguishes; When ambient brightness less than certain brightness (like 30LUX), human body sensing treatment circuit 2 outputs output high level, the second triode Q2 of transistor switching circuit 6 closes, constant-current power supply circuit 4 work, the output Constant Electric Current, the LED lamp is bright.So periodic duty.
Embodiment two
Different with embodiment one is; The LED human body sensing circuit for lamp that present embodiment provides comprises that also one has the toggle switch 7 of three retaining outputs; The output of said reduction voltage circuit 5 links to each other with the power input of said toggle switch 7; The first retaining output of said toggle switch 7, the second retaining output and the 3rd retaining output all link to each other with the power input of said human body sensing treatment circuit 2, are used to break off or the power supply of the said human body sensing treatment circuit 2 of conducting; The second retaining output of said toggle switch 7 also links to each other with the power input of said transistor switching circuit 6.
In the present embodiment, transistor switching circuit 6 outputs are connected with the VCC end of the control chip of constant-current power supply circuit 4.
The first retaining output of toggle switch 7 is for often opening retaining (ON), the second retaining output for induction work keeps off (Auto), the 3rd retaining output is normally closed retaining (OFF).
Respond to operating state (Auto) when toggle switch 7 pushes, toggle switch 7 is just started working the output conducting of the power input and the reduction voltage circuit 5 of human body sensing treatment circuit 2 with human body sensing treatment circuit 2.The 2 real-time testing environment brightness of human body sensing treatment circuit; When ambient brightness greater than certain brightness (like 30LUX) human body sensing treatment circuit 2 output output low levels; The second triode Q2 conducting of transistor switching circuit 6; The VCC end ground connection of the control chip U1 of constant-current power supply circuit 4, constant-current power supply circuit 4 is not worked, and the LED lamp extinguishes; When ambient brightness less than certain brightness (like 30LUX); Human body sensing treatment circuit 2 outputs output high level; The second triode Q2 of transistor switching circuit 6 closes, and the VCC end of the control chip U1 of constant-current power supply circuit 4 is high level, constant-current power supply circuit 4 work; The output Constant Electric Current, the LED lamp is lighted; So periodic duty.
Often drive retaining (On) when toggle switch 7 pushes, toggle switch 7 is closed human body sensing treatment circuit 2 power supplys; The base stage of the second triode Q2 in the transistor switching circuit 6 is through being connected with the high level output of reduction voltage circuit 5 when toggle switch 7; The first triode Q1 conducting in the transistor switching circuit; The second triode Q2 in the transistor switching circuit closes, and the VCC end of the control chip U1 of constant-current power supply circuit 4 is high level, constant-current power supply circuit 4 work; The output Constant Electric Current, LED lamp Chang Liang.
When toggle switch 7 pushes normally closed retaining; Toggle switch 7 is closed human body sensing treatment circuit 2 power supplys, and the base stage of the first triode Q1 in the transistor switching circuit 6 is through being connected with the low level output of reduction voltage circuit 5 when toggle switch 7, and the first triode Q1 in the transistor switching circuit 6 closes; The second triode Q2 conducting; The VCC end ground connection of the control chip U1 of constant-current power supply circuit 4, constant-current power supply circuit 4 is not worked, and the LED lamp often goes out.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205256393U CN202374523U (en) | 2011-12-15 | 2011-12-15 | Light emitting diode (LED) human body induction lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205256393U CN202374523U (en) | 2011-12-15 | 2011-12-15 | Light emitting diode (LED) human body induction lamp |
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| Publication Number | Publication Date |
|---|---|
| CN202374523U true CN202374523U (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205256393U Expired - Lifetime CN202374523U (en) | 2011-12-15 | 2011-12-15 | Light emitting diode (LED) human body induction lamp |
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| CN (1) | CN202374523U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641786A (en) * | 2016-12-16 | 2017-05-10 | 施慧 | LED (Light Emitting Diode) bulb working automatically by human body sensing |
| CN107484291A (en) * | 2017-08-01 | 2017-12-15 | 陈优颖 | A kind of human body sensing night-light |
| CN109587888A (en) * | 2018-12-25 | 2019-04-05 | 浙江阳光照明灯具有限公司 | A kind of induction LED driving circuit |
-
2011
- 2011-12-15 CN CN2011205256393U patent/CN202374523U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641786A (en) * | 2016-12-16 | 2017-05-10 | 施慧 | LED (Light Emitting Diode) bulb working automatically by human body sensing |
| CN107484291A (en) * | 2017-08-01 | 2017-12-15 | 陈优颖 | A kind of human body sensing night-light |
| CN109587888A (en) * | 2018-12-25 | 2019-04-05 | 浙江阳光照明灯具有限公司 | A kind of induction LED driving circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 315040, Xinhui Road, national hi tech Zone, Zhejiang, Ningbo, 150 Patentee after: NINGBO SUNPU OPTO CO., LTD. Address before: 315040, Xinhui Road, national hi tech Zone, Zhejiang, Ningbo, 150 Patentee before: Ningbo Sunpu-opto Semiconductor Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |