CN202617446U - Protection grounding type human body infrared induction LED intelligent lamp - Google Patents
Protection grounding type human body infrared induction LED intelligent lamp Download PDFInfo
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- CN202617446U CN202617446U CN2012202418668U CN201220241866U CN202617446U CN 202617446 U CN202617446 U CN 202617446U CN 2012202418668 U CN2012202418668 U CN 2012202418668U CN 201220241866 U CN201220241866 U CN 201220241866U CN 202617446 U CN202617446 U CN 202617446U
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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
Abstract
The present utility model relates to a protection grounding type human body infrared induction LED intelligent lamp. The LED intelligent lamp comprises an LED lamp body which is connected with an intelligent control circuit, the intelligent control circuit comprises an AC wattless voltage-reducing circuit, a rectifier bridge and a PFC correction circuit, the PFC correction circuit is connected with a DC voltage reducing and stabilizing circuit and a drive circuit, the DC voltage reducing and stabilizing circuit is connected with the drive circuit through a human body infrared detection circuit, the human body infrared detection circuit is connected with the drive circuit, the drive circuit is connected with the LED lamp body, the human body infrared detection circuit comprises a level converting circuit which is connected with the DC voltage reducing and stabilizing circuit and a human body infrared detector, the human body infrared detector is connected with a signal transmitting circuit, the signal transmitting circuit is connected with the drive circuit, the signal transmitting circuit is used for adjusting output power of high light state and micro power consumption state according to user requirements; and a metal grounding device is arranged outside an outer shell of the LED lamp body. The lamp is high in power supply efficiency, low in circuit temperature rise, good in safety performance and convenient to use and assembled.
Description
Technical field
The utility model relates to a kind of LED technology, relates in particular to a kind of protective earthing type human body infrared induction LED intelligence lamp.
Background technology
The LED lamp is because advantages such as energy-saving and environmental protection, life-span length have become a kind of emerging energy-saving lamp.LED lamp Driving technique combines with the human body infrared detection technique, has further widened the application of LED lamp.
Existing human body infrared induction LED lamp partly is the human body infrared acquisition to be driven with LED separate installation, for example application number: 201120188069.3 Chinese utility model patent discloses " a kind of LED energy-saving lamp circuit of infrared induction "; The advantage of this scheme is: detector can be confirmed the installation site according to user's request, and investigative range is wide; Detection circuit and drive circuit are external, good heat dissipation effect.This scheme have a following problems: (1) LED lamp has only " bright entirely ", " going out entirely " two states; Can't regulate LED lamp output brightness, after human body left detecting area, the LED lamp all extinguished; Be not suitable for using LED lamp bad adaptability in places such as underground garage, library, reading rooms.
Need change original circuit when (2) using, inconvenient installation, when detection circuit and drive circuit apart from each other, connecting line is brought interference easily into, influence control effect.
In view of the foregoing, people propose again a kind of detection circuit and drive circuit to be made of one, to be built in the technical scheme in the LED fluorescent tube.Application number for example: 201120053641.5 Chinese utility model patent discloses " a kind of infrared induction LED fluorescent lamp ".The advantage of this utility model is: the human body infrared acquisition is placed lamp holder, and control circuit places fluorescent tube, and profile is simple, can directly replace original fluorescent lamp tube, simple installation.But there is following problem in this scheme:
(1) control circuit adopts resistance step-down mode to chip and detector power supply, and the circuit temperature rise is big, and power-efficient is low, and control circuit is built in the fluorescent tube, causes heat accumulation, and radiating effect is poor, has a strong impact on LED lamp pearl useful life.
(2) ac input end is not done lightning protection, safeguard procedures such as anti-interference, and the interference in the civil power, noise can influence LED lamp pearly-lustre imitates, and influences the operate as normal of control circuit.
And in the prior art scheme, LED lamp housing conductive part is not done ground protection and is handled, and jeopardizes the person and LED lamp apparatus safety easily.
The utility model content
The purpose of the utility model provides a kind of rational in infrastructure exactly for addressing the above problem, and detection, driving are built in the fluorescent tube, and the circuit temperature rise is low, and power-efficient is high; Output state, " Gao Liang ", " little power consumption " can be set as required, and adaptability is strong; The protective earthing type human body infrared induction LED intelligence lamp that security performance is good.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of protective earthing type human body infrared induction LED intelligence lamp, it comprises the LED lamp body, the LED lamp body is connected with intelligence control circuit; Said intelligence control circuit comprises the idle reduction voltage circuit of interchange; It is connected with the PFC correcting circuit through rectifier bridge, and the PFC correcting circuit is connected with drive circuit with the DC decompression voltage stabilizing circuit respectively, and the DC decompression voltage stabilizing circuit is connected with drive circuit through human body infrared acquisition circuit respectively; Human body infrared acquisition circuit also is connected with drive circuit; Drive circuit is connected with the LED lamp body, and said human body infrared acquisition circuit comprises level shifting circuit, and its input is connected with the DC decompression voltage stabilizing circuit; Output is connected with human body infrared detector; Human body infrared detector is connected with the signal transmitting circuit, and the signal transmitting circuit is connected with drive circuit, and the signal transmitting circuit is regulated the power output of high bright state, little power consumption state according to customer requirements; Said LED lamp body shell is provided with the metal earthing device.
The idle reduction voltage circuit of said interchange is connected with the power supply protection circuit through the EMI filter circuit, and the power supply protection circuit is connected with power line.
Said power supply protection circuit is made up of the negative tempperature coefficient thermistor NTC that is connected with power firestreak, the protective tube FUSE that is connected with zero-power line and the Transient Suppression Diode TVS that is connected across between the two, and Transient Suppression Diode TVS two ends are connected with EMI filter circuit input.
The idle reduction voltage circuit of said interchange is high-voltage capacitance C21, C22, R26, R27, and R26 is parallelly connected with C21, and R27 is parallelly connected with C22.C21, C22 are serially connected in the ac input end of rectifier bridge respectively.
Said DC decompression voltage stabilizing circuit mainly is made up of pliotron Q1, electrochemical capacitor C16, C15, capacitor C 12, resistance R 5, R6, R17, voltage-stabiliser tube VZ2; Wherein the collector electrode of triode Q 1 is connected with R 17 1 ends, and R 17 other ends are connected with the PFC correcting circuit, and base stage then connects respectively at R 5, the R6 of parallel connection, and base stage is also through C16, voltage-stabiliser tube VZ2 difference ground connection simultaneously; Emitter is then through parallelly connected capacitor C 12, C15 ground connection.
Said level shifting circuit is by resistance R 1, R2, capacitor C 1, C8, and voltage-stabiliser tube VZ1, electrochemical capacitor E1 forms; Resistance R 1, R2 series connection back one end are connected with the DC decompression voltage stabilizing circuit, and the other end is connected with voltage-stabiliser tube VZ1 negative pole, voltage-stabiliser tube VZ1 plus earth, and the VZ1 negative pole is as testing circuit power vd D simultaneously;
Said testing circuit is by pyroelectricity control special integrated chip IC2, pyroelectric infrared transducer PIR, resistance R 3, R4, R7, R8, R11, R12, R13, electrochemical capacitor E2, E3, E4, E5, and capacitor C 2, C3, C4, C5, C6, C7 form; Pyroelectric infrared transducer PIR pin 3 joins with IC2 pin 4, E2 positive pole, C2, and the E2 negative pole connects power supply ground, another termination power ground of C2.PIR pin 2 connects power supply ground through R7, C5; PIR pin 2 connects IC2 pin 2; PIR pin 1 connects power supply ground; To IC2 pin 8, IC2 pin 8 external C3 are to power supply ground through R3 for power vd D; To IC2 pin 6, IC2 pin 6 external C4 are to power supply ground through R4 for power vd D; IC2 pin 3 connects the E3 positive pole through R8; The E3 negative pole connects power supply ground, and IC2 pin 3 connects IC2 pin 1 through R11 C6 respectively, and IC2 pin 1 connects the E4 negative pole; The E4 positive pole connects IC2 pin 14 behind R13; IC2 pin 15 connects the E5 positive pole, and the E5 negative pole connects power supply ground, and IC2 pin 14 connects IC2 pin 16. IC2 pins 5 through R12 C7 respectively and connects power supply ground; IC2 pin 13 meets power vd D.
Said signal transmitting circuit is mainly by resistance R 14, R15, R18, R22, capacitor C 18, C20, and triode T1, T2 form, and resistance R 14 is connected with the base stage of T1, and R15 is connected the grounded emitter of T1, T2 with the base stage of T2 and the collector electrode of T1; The current collection of T2 is the detectable signal output very.
Said earthing device is for being provided with aluminium shell outside the LED lamp body; Prepared screw-bolt hole on it, the wire head of copper conductor connects the copper aluminium terminal, does after the deoxidation of copper aluminium terminal and wards off the tin processing; And at the terminal surfaces coating conductive paste; The pad tinfoil paper at the prepared screw-bolt hole place is pressed on the shell with bolt, another termination of copper conductor PE protective wire.
Said drive circuit is the PWM constant-current control circuit; Mainly form by power inductance L4, fast recovery diode D10, capacitor C 17, power MOSFET Q2, pwm chip IC1, resistance R 20, R21, R23, R24; Pwm chip IC1 works in the PWM mode; IC1 pin 3 is set peak level, changes the incoming level of IC1 pin 3, thus linearity light adjusting; IC1 pin 2 is crossed the electric current of LED lamp through outer meeting resistance R23, R24 sample streams; The level of the incoming level of IC1 pin 3 and IC1 inner setting is as the threshold level of PWM control; Certain moment IC1 pin 3 is set level and is higher than IC1 inner setting level; When sample rate current reached IC1 pin 3 setting level, switch-off power MOSFET Q2 was when sample rate current is lower than IC1 inner setting level; Open power MOSFET Q2, realize PWM constant current control in this way.
The utility model reduces the rectifier bridge AC-input voltage through utilizing high-voltage capacitance, and then reduces the rectifier bridge VD, and under the constant prerequisite of the required direct current of assurance system, the entire circuit power consumption decreases.High-voltage capacitance is consumed power not, only plays hypotensive effect, cooperates with back level DC decompression voltage stabilizing circuit again, to System on Chip/SoC and circuit supply, adopts this mode, has improved power-efficient, has reduced the circuit temperature rise.The infrared ray responsive that only human body is sent after the filtering of pyroelectric infrared transducer PIR process Fresnel Lenses; When the people gets into detecting area; The PIR signal is after the inner two-stage of pyroelectricity special integrated chip IC2 is amplified, and IC2 pin 11 output high level are to signal transmission unit.Detecting area nobody the time, IC2 pin 11 output low levels.Regulate R3, C3, can set delay time.Someone gets into detecting area, IC2 pin 11 output high level, and the TI conducting, T2 ends, and at this moment, to ground, the last level of R22 is the light modulation incoming level to IC1 pin 3 through R22.When in the detecting area nobody the time, IC2 pin 11 output low levels, TI ends, the T2 conducting, IC1 pin 3 respectively through R18, R22 to power supply ground.At this moment, IC1 pin 3 incoming levels depend on the parallelly connected resistance of R22, R18.Regulate the resistance of R22, R18, can change the power output of high bright state, little power consumption state.
The beneficial effect of the utility model is:
1, adopt to exchange idle step-down, the DC decompression voltage stabilizing circuit mode that matches, direct current is provided, reduced the whole system power consumption, improved power-efficient, reduced the circuit temperature rise to chip and testing circuit.
2, adopt the signal transmitting circuit, LED lamp output state " Gao Liang ", " little power consumption " can be set according to user's request, have improved the adaptability of LED lamp.
3, human body infrared acquisition circuit and led drive circuit are made of one, and are built in the fluorescent tube, have reduced the external disturbance intrusion, and be easy to install and use.
4, use ground protection and handle, can avoid jeopardizing under insulation damages or other situation person and LED lamp apparatus safety.
Description of drawings
Fig. 1 is the The general frame of the utility model;
Fig. 2 is the overall circuit figure of the utility model;
Fig. 3 is the overall circuit figure of the remainder of the utility model;
Fig. 4 is DC decompression voltage stabilizing circuit figure;
Fig. 5 is the signal transmitting circuit diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Protective earthing type human body infrared induction LED intelligence lamp as shown in Figure 1; It comprises the LED lamp body; The LED lamp body is connected with intelligence control circuit, and said intelligence control circuit comprises the power supply protection circuit, it with the EMI filter circuit, exchange idle reduction voltage circuit, rectifier bridge and PFC correcting circuit and be connected; The PFC correcting circuit is connected with the PWM constant-current control circuit with the DC decompression voltage stabilizing circuit, and the DC decompression voltage stabilizing circuit is connected with the PWM constant-current control circuit with level conversion respectively; Level shifting circuit is connected with human body infrared acquisition circuit, and human body infrared acquisition circuit is connected with the PWM constant-current control circuit through the signal transmitting circuit, and the PWM constant-current control circuit is connected with the LED lamp body, and said LED lamp body shell is provided with the metal earthing device.
Among Fig. 2, Fig. 3, this power supply protection circuit is made up of negative tempperature coefficient thermistor NTC, protective tube FUSE, Transient Suppression Diode TVS.Thermistor NTC is used to reduce starting current, and protective tube FUSE is used for short circuit, overload protection, and TVS is used for voltage-limiting protection, suppresses the electric net overload pulse.Thermistor NTC, protective tube FUSE are serially connected in the electric power incoming line, and TVS is attempted by in the electric power incoming line.
The EMI filter circuit is by safety capacitor C 9, C10, choke L1, L2, and resistance R 9, R10, common mode inhibition choke L3, common mode inhibition capacitor C Y1, CY2 form.C9, C10, L1, C9, C10, L1, L2, R9, R10 form pi type filter and are used to suppress DM EMI, and common mode choke L3, CY1, CY2 are used to suppress common mode disturbances.C9, C10 are attempted by in the electric power incoming line, R9, R10 respectively with L1, L2 is parallelly connected is serially connected with in the electric power incoming line again, common mode inhibition choke L3 two inputs are attempted by in the electric power incoming line.The L3 output arrives through CY1, CY2 respectively and exchanges ground.L3 output termination rectifier bridge is supplied power to the PWM constant-current control circuit.
This exchanges idle reduction voltage circuit is high-voltage capacitance C21, C22, R26, R27, and R26 is parallelly connected with C21, and R27 is parallelly connected with C22.C21, C22 are serially connected in the ac input end of rectifier bridge respectively.
Its operation principle is: utilize high-voltage capacitance, reduce the rectifier bridge AC-input voltage, and then reduce the rectifier bridge VD, under the constant prerequisite of the required direct current of assurance system, the entire circuit power consumption decreases.High-voltage capacitance is consumed power not, only plays hypotensive effect, cooperates with back level DC decompression voltage stabilizing circuit again, to System on Chip/SoC and circuit supply, adopts this mode, has improved power-efficient, has reduced the circuit temperature rise.
Current rectifying and wave filtering circuit is by D3, D4, D5, D6, and capacitor C 11 is formed.
The PFC correcting circuit is by electrochemical capacitor C13, C14, the balancing half-bridge compensation circuit that diode D7, D8, D9 form.C13, D7 constitute an arm of half-bridge, and C14, D9 form another arm of half-bridge, and D8, R19 constitute connecting path, and this correcting circuit utilization is filled out the paddy principle and compensated.C13 is anodal, the D9 negative pole links to each other with cathode rectifier, and C14 negative pole, D7 positive pole and rectifier bridge negative pole link to each other, and D8 is anodal to link to each other with C13 negative pole, D7 negative pole, and the D8 negative pole links to each other with D9 is anodal, C14 is anodal behind R19.
The DC decompression voltage stabilizing circuit is by pliotron Q1, electrochemical capacitor C16, C15, capacitor C 12, the emitter follower that resistance R 5, R6, R17, voltage-stabiliser tube VZ2 form.The base stage of Q1 to be connected to voltage-stabiliser tube VZ2, the exportable stable DC voltage of QI emitter.The base stage of Q1 also is connected to electrochemical capacitor C16 to ground, be equivalent to be connected at the Q1 emitter electric capacity of (1+ β) C16, constitutes a kind of capacitance multiplication formula low pass filter, can effectively eliminate ripple.This circuit has filtering and pressure stabilization function simultaneously.The Q1 collector electrode meets PFC through R17 and proofreaies and correct output, and the Q1 base stage connects cathode rectifier after R5, R6 parallel connection, and to power supply ground, the QI emitter connects pwm chip IC17 pin to the Q1 emitter after C12, C15 parallel connection, simultaneously to chip IC 1 and detection circuit power supply.
Its operation principle is: LED constant-current driven chip IC1 works in the PWM mode, and IC1 pin 3 is set peak level, changes the incoming level of IC1 pin 3, can linearity light adjusting.IC1 pin 2 is crossed the electric current of LED lamp through outer meeting resistance R23, R24 sample streams.The 250mv level of the incoming level of IC1 pin 3 and IC1 inner setting is as the threshold level of PWM control.For example; Certain moment IC1 pin 3 is set level and is higher than IC1 inner setting 250mv level; When sample rate current reached IC1 pin 3 setting level, switch-off power MOSFET Q2 was when sample rate current is lower than IC1 inner setting 250mv; Open power MOSFET Q2, realize PWM constant current control in this way.
Human body infrared acquisition circuit comprises flatting turn and changes circuit, testing circuit two parts.Power-switching circuit is by resistance R 1, R2, voltage-stabiliser tube VZ1, and electrochemical capacitor E1 forms.The VZ1 negative pole is as testing circuit power vd D.Said testing circuit is by pyroelectricity control special integrated chip IC2, pyroelectric infrared transducer PIR, resistance R 3, R4, R7, R8, R11, R12, R13, electrochemical capacitor E2, E3, E4, E5, and capacitor C 2, C3, C4, C5, C6, C7 form.
Its operation principle is: the infrared ray responsive that only human body is sent after the filtering of pyroelectric infrared transducer PIR process Fresnel Lenses; When the people gets into detecting area; The PIR signal is after the inner two-stage of pyroelectricity special integrated chip IC2 is amplified, and IC2 pin 11 output high level are to signal transmission unit.Detecting area nobody the time, IC2 pin 11 output low levels.Regulate R3, C3, can set delay time.
As shown in Figure 5, the signal transmitting circuit is by resistance R 14, R15, R18, R22, capacitor C 18, C20, and triode T1, T2 form.
Signal transmitting circuit working principle is: the someone gets into detecting area, IC2 pin 11 output high level, and the TI conducting, T2 ends, and at this moment, to ground, the last level of R22 is the light modulation incoming level to IC1 pin 3 through R22.When in the detecting area nobody the time, IC2 pin 11 output low levels, TI ends, the T2 conducting, IC1 pin 3 respectively through R18, R22 to power supply ground.At this moment, IC1 pin 3 incoming levels depend on the parallelly connected resistance of R22, R18.Regulate the resistance of R22, R18, can change the power output of high bright state, little power consumption state.
The ground protection way is: at LED lamp aluminium shell prepared screw-bolt hole; The copper conductor wire head connects the copper aluminium terminal, and do after the deoxidation of copper aluminium terminal and ward off the tin processing, and at the terminal surfaces coating conductive paste; The pad tinfoil paper at the prepared screw-bolt hole place is pressed on the shell with bolt at last.Another termination of copper conductor PE protective wire.
The utility model overall operation process is:
The input civil power at first carries out the power supply protective treatment, comprises lightning protection, overvoltage protection, short circuit, overload protection, limiting starting current protection, connects the EMI filter circuit again.The EMI filter circuit is eliminated, is suppressed common mode disturbances, the DM EMI of input civil power.After EMI filtering, connect and exchange idle reduction voltage circuit, the input civil power is carried out idle step-down, and import as the interchange of current rectifying and wave filtering circuit.The output of current rectifying and wave filtering circuit direct current connects the DC decompression voltage stabilizing circuit after proofreading and correct through PFC, and the decompression voltage regulator employing is penetrated level and followed mode simultaneously to detection circuit and IC1 power supply.The pin 3 of IC1 changes the incoming level of pin 3 as the linearity light adjusting input, can realize LED lamp function.IC1 and peripheral Q1 and resistance, electric capacity constitute LED lamp PWM constant-current drive circuit.
The infrared ray that detection circuit contact unit PIR human body discharges; When the people got into detecting area, probe PIR exported strong amplitude signal and gives the IC2 pin two, IC2 inside carry out amplification ratio after; Pin one 1 output high level; This high level is input to the signal transmitting circuit, makes IC1 pin 3 outsides be input as high level, and the LED lamp is in high bright state.When human body leave detecting area after a period of time or detecting area nobody the time, the weak amplitude signal of probe PIR output is given the IC2 pin two, IC2 pin one 1 output low level makes IC1 pin 3 outsides be input as low level to the signal transmitting circuit, LED is in little power consumption state.Delay time, the output brightness of high bright state, little power consumption state all can be set according to actual needs.
The foregoing description is the preferred embodiments of the utility model; But the execution mode of the utility model is not restricted to the described embodiments; Other are any does not run counter to modification, combination, the simplification done under spirit and the principle of the utility model and is the equivalent replacement mode, is included within the protection range of the utility model.
Claims (9)
1. protective earthing type human body infrared induction LED intelligence lamp, it comprises the LED lamp body, the LED lamp body is connected with intelligence control circuit; Said intelligence control circuit comprises the idle reduction voltage circuit of the interchange that is connected with power supply, and it is connected with the PFC correcting circuit through rectifier bridge, and the PFC correcting circuit is connected with drive circuit with the DC decompression voltage stabilizing circuit respectively; The DC decompression voltage stabilizing circuit is connected with drive circuit through human body infrared acquisition circuit respectively; Human body infrared acquisition circuit also is connected with drive circuit, and drive circuit is connected with the LED lamp body, it is characterized in that; Said human body infrared acquisition circuit comprises level shifting circuit; Its input is connected with the DC decompression voltage stabilizing circuit, and output is connected with human body infrared detector, and human body infrared detector is connected with the signal transmitting circuit; The signal transmitting circuit is connected with drive circuit, the power output of the high bright state of signal transmitting circuit adjustment, little power consumption state; Said LED lamp body shell is provided with the metal earthing device.
2. protective earthing type human body infrared induction LED intelligence lamp as claimed in claim 1 is characterized in that the idle reduction voltage circuit of said interchange is connected with the power supply protection circuit through the EMI filter circuit, and the power supply protection circuit is connected with power line.
3. protective earthing type human body infrared induction LED intelligence lamp as claimed in claim 2; It is characterized in that; Said power supply protection circuit is made up of the negative tempperature coefficient thermistor NTC that is connected with power firestreak, the protective tube FUSE that is connected with zero-power line and the Transient Suppression Diode TVS that is connected across between the two, and Transient Suppression Diode TVS two ends are connected with EMI filter circuit input.
4. according to claim 1 or claim 2 protective earthing type human body infrared induction LED intelligence lamp; It is characterized in that; The idle reduction voltage circuit of said interchange is high-voltage capacitance C21, high-voltage capacitance C22, resistance R 26, resistance R 27; Resistance R 26 is parallelly connected with high-voltage capacitance C21, and resistance R 27 is parallelly connected with high-voltage capacitance C22; High-voltage capacitance C21, high-voltage capacitance C22 are serially connected in the ac input end of rectifier bridge respectively.
5. protective earthing type human body infrared induction LED intelligence lamp as claimed in claim 1; It is characterized in that said DC decompression voltage stabilizing circuit mainly is made up of pliotron Q1, electrochemical capacitor C16, electrochemical capacitor C15, capacitor C 12, resistance R 5, resistance R 6, resistance R 17, voltage-stabiliser tube VZ2; Wherein the collector electrode of triode Q 1 is connected with resistance R 17 1 ends, and resistance R 17 other ends are connected with the PFC correcting circuit, and base stage then is connected with parallel resistor R 5, resistance R 6 respectively, and base stage is also through electrochemical capacitor C16, voltage-stabiliser tube VZ2 difference ground connection simultaneously; Emitter is then through parallelly connected capacitor C 12, electrochemical capacitor C15 ground connection.
6. protective earthing type human body infrared induction LED intelligence lamp as claimed in claim 1 is characterized in that said level shifting circuit is by resistance R 1, resistance R 2, capacitor C 1, capacitor C 8, and voltage-stabiliser tube VZ1, electrochemical capacitor E1 forms; Resistance R 1, resistance R 2 series connection backs one end are connected with the DC decompression voltage stabilizing circuit, and the other end is connected with voltage-stabiliser tube VZ1 negative pole, voltage-stabiliser tube VZ1 plus earth, and voltage-stabiliser tube VZ1 negative pole is as testing circuit power vd D simultaneously;
Said testing circuit is by pyroelectricity control special integrated chip IC2, pyroelectric infrared transducer PIR, resistance R 3, resistance R 4, resistance R 7, resistance R 8, resistance R 11, resistance R 12, resistance R 13; Electrochemical capacitor E2, electrochemical capacitor E3, electrochemical capacitor E4, electrochemical capacitor E5, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5, capacitor C 6, capacitor C 7 are formed; Pyroelectric infrared transducer PIR pin 3 joins with integrated chip IC2 pin 4, electrochemical capacitor E2 positive pole, capacitor C 2, and electrochemical capacitor E2 negative pole connects power supply ground, capacitor C 2 another termination power ground; Pyroelectric infrared transducer PIR pin 2 connects power supply ground through resistance R 7, electrochemical capacitor C5; Pyroelectric infrared transducer PIR pin 2 connects integrated chip IC2 pin 2; Pyroelectric infrared transducer PIR pin 1 connects power supply ground; To integrated chip IC2 pin 8, integrated chip IC2 pin 8 external capacitor C3 are to power supply ground through resistance R 3 for power vd D; To integrated chip IC2 pin 6, integrated chip IC2 pin 6 external capacitor C4 are to power supply ground through resistance R 4 for power vd D; It is anodal that integrated chip IC2 pin 3 meets electrochemical capacitor E3 through resistance R 8; Electrochemical capacitor E3 negative pole connects power supply ground; Integrated chip IC2 pin 3 connects integrated chip IC2 pin 1 through resistance R 11, capacitor C 6 respectively, and integrated chip IC2 pin 1 connects electrochemical capacitor E4 negative pole, and electrochemical capacitor E4 positive pole connects integrated chip IC2 pin 14 after resistance R 13; It is anodal that integrated chip IC2 pin 15 meets electrochemical capacitor E5; Electrochemical capacitor E5 negative pole connects power supply ground, and integrated chip IC2 pin 14 connects integrated chip IC2 pin 16 through resistance R 12, capacitor C 7 respectively, and integrated chip IC2 pin 5 connects power supply ground; Integrated chip IC2 pin 13 meets power vd D.
7. protective earthing type human body infrared induction LED intelligence lamp as claimed in claim 1; It is characterized in that said signal transmitting circuit is mainly by resistance R 14, resistance R 15, resistance R 18, resistance R 22, capacitor C 18, capacitor C 20; Triode T1, triode T2 form; Resistance R 14 is connected with the base stage of triode T1, and resistance R 15 is connected the grounded emitter of triode T1, triode T2 with the base stage of triode T2 and the collector electrode of triode T1; The current collection of triode T2 is the detectable signal output very.
8. protective earthing type human body infrared induction LED intelligence lamp as claimed in claim 1 is characterized in that said earthing device is for being provided with aluminium shell outside the LED lamp body; Prepared screw-bolt hole on it, the wire head of copper conductor connects the copper aluminium terminal, does after the deoxidation of copper aluminium terminal and wards off the tin processing; And at the terminal surfaces coating conductive paste; The pad tinfoil paper at the prepared screw-bolt hole place is pressed on the shell with bolt, another termination of copper conductor PE protective wire.
9. protective earthing type human body infrared induction LED intelligence lamp as claimed in claim 1; It is characterized in that; Said drive circuit is the PWM constant-current control circuit; Mainly be made up of power inductance L4, fast recovery diode D10, capacitor C 17, power MOSFET Q2, pwm chip IC1, resistance R 20, resistance R 21, resistance R 23, resistance R 24, pwm chip IC1 works in the PWM mode, and pwm chip IC1 pin 3 is set peak level; Change the incoming level of pwm chip IC1 pin 3, thus linearity light adjusting; Pwm chip IC1 pin 2 is crossed the electric current of LED lamp through outer meeting resistance R23, resistance R 24 sample streams; The level of the incoming level of pwm chip IC1 pin 3 and pwm chip IC1 inner setting is as the threshold level of PWM control; Certain moment pwm chip IC1 pin 3 is set level and is higher than pwm chip IC1 inner setting level; When sample rate current reaches pwm chip IC1 pin 3 setting level; Switch-off power MOSFET Q2; When sample rate current is lower than pwm chip IC1 inner setting level, open power MOSFET Q2, realize PWM constant current control in this way.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202418668U CN202617446U (en) | 2012-05-28 | 2012-05-28 | Protection grounding type human body infrared induction LED intelligent lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012202418668U CN202617446U (en) | 2012-05-28 | 2012-05-28 | Protection grounding type human body infrared induction LED intelligent lamp |
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| CN202617446U true CN202617446U (en) | 2012-12-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300985A (en) * | 2015-06-01 | 2017-01-04 | 中兴通讯股份有限公司 | A kind of current equalizing method controlling input current and circuit |
-
2012
- 2012-05-28 CN CN2012202418668U patent/CN202617446U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300985A (en) * | 2015-06-01 | 2017-01-04 | 中兴通讯股份有限公司 | A kind of current equalizing method controlling input current and circuit |
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