CN206932442U - A kind of photosensitive detection lighting circuit and the illuminator with the circuit - Google Patents
A kind of photosensitive detection lighting circuit and the illuminator with the circuit Download PDFInfo
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- CN206932442U CN206932442U CN201720761566.5U CN201720761566U CN206932442U CN 206932442 U CN206932442 U CN 206932442U CN 201720761566 U CN201720761566 U CN 201720761566U CN 206932442 U CN206932442 U CN 206932442U
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
It the utility model is related to a kind of photosensitive detection lighting circuit and the illuminator with the circuit, including protection pressure unit, rectification filtering unit, single-chip microcomputer power supply unit, the photosensitive identifying unit of single-chip microcomputer and the LED drive unit being sequentially connected electrically；The photosensitive identifying unit of single-chip microcomputer includes single-chip microcomputer U2 and the photosensitive detection circuit being made up of resistance R7 and photodiode D3, photodiode is by optical signal feedback to single-chip microcomputer, single-chip microcomputer compared with setting value and provides result of determination to reception signal, LED drive unit is controlled by single-chip microcomputer, and single-chip microcomputer provides compensation electric current for photodiode.The utility model judges photosensor signal by single-chip microcomputer, and LED switch is controlled by single-chip microcomputer, so that the light that lighting source is sent will not interfere to photosensor signal, so as to light-sensitive element is arranged on the light source board for laying light source, the structural intergrity and aesthetic property of illuminator are maintained, it is especially suitable for LED light product-derived.
Description
Technical field
A kind of photosensitive detection lighting circuit and the illuminator with the circuit are the utility model is related to, belongs to lighting engineering
Field.
Background technology
Generally control it to light and extinguish using manual type in the illuminator used at present, in order to save the energy, have
A little illuminators begin to use photosensitive detection circuit and control its automatic switch by detecting the brightness of environment.Existing light
The light-sensitive element used on quick lamp be often installed in lamp light source irradiation less than position, the purpose is to avoid lamp light source from sending
Light light-sensitive element is caused to judge by accident, so as to reduce the sensitivity of light-sensitive element.Suffer from this, the installation to light fixture causes fiber crops
It is tired, the overall aesthetics of light fixture is also had influence on, especially for LED light source class product, because compact is less susceptible to solve.
Utility model content
The purpose of this utility model is to provide a kind of photosensitive detection lighting circuit not influenceed by lamp light source in itself so that
The installation of light-sensitive element can be laid in same environment with lamp light source reaches perfect adaptation, does not destroy light fixture or light source
Outward appearance.
To achieve these goals, technical scheme is used by the utility model：
A kind of photosensitive detection lighting circuit, including protection pressure unit, rectification filtering unit, the single-chip microcomputer being sequentially connected electrically
The photosensitive identifying unit of power supply unit, single-chip microcomputer and LED drive unit；The photosensitive identifying unit of single-chip microcomputer include single-chip microcomputer U2 with
And the photosensitive detection circuit being made up of resistance R7 and photodiode D3, single-chip microcomputer U2 6 pin lead-out terminals and LED drive unit
Input terminal be connected, the connection of single-chip microcomputer U2 5 pin lead-out terminals resistance R6, single-chip microcomputer U2 7 pin lead-out terminals and resistance R6
The other end be connected, the common port of resistance R6 and 7 pin is connected to photodiode D3 negative electrode, photodiode D3 anode with
Single-chip microcomputer U2 8 pin are connected, and single-chip microcomputer U2 8 pin ground connection, resistance R7 one end is connected with photodiode D3 negative electrode, another
End is connected with single-chip microcomputer U2 1 pin input terminal, and 1 pin input terminal is connected with the output end of single-chip microcomputer power supply unit；The list
The frequency and dutycycle of the reference value of input photoelectric current and output waveform in piece machine U2, the photoelectricity that photodiode D3 is detected
Stream signal feeds back to single-chip microcomputer U2 and judged for single-chip microcomputer, if the photo-signal of feedback is less than reference value, single-chip microcomputer U2 6 pin are defeated
The waveform for going out predeterminated frequency and dutycycle lights LED to LED drive unit, while single-chip microcomputer U2 5 pin output high level leads to
Cross resistance R6 and provide compensation electric current to photodiode D3；If the photo-signal for feeding back to single-chip microcomputer U2 is higher than reference value,
Single-chip microcomputer U2 6 pin, which close output, makes LED extinguish.
The photosensitive identifying unit of single-chip microcomputer also includes electric capacity C8, and electric capacity C8 one end is connected with single-chip microcomputer U2 1 pin, separately
One end is connected with single-chip microcomputer U2 8 pin.
The LED drive unit includes high-voltage three-pole pipe Q2, LED, current-limiting resistance R4 and pull down resistor R5, current-limiting resistance R4
One end be connected with single-chip microcomputer U2 6 pin, the other end is connected with high-voltage three-pole pipe Q2 base stage；Pull down resistor R5 one end connection
High-voltage three-pole pipe Q2 base stage, other end ground connection；High-voltage three-pole pipe Q2 grounded emitter, Q2 colelctor electrode and LED negative electrode
It is connected, the VCC ends connection in LED anode and rectification filtering unit.
The protection pressure unit includes overcurrent fuse F1, decompression current limiting capacitance C1 and C2, after electric capacity C1 and C2 parallel connection
Connected with fuse F1, protect the input of pressure unit to connect AC power, the output end and rectification for protecting pressure unit are filtered
The ac terminal of rectifier bridge in ripple unit is connected.
The rectification filtering unit includes rectifier bridge D1, high-voltage electrolytic capacitor C3 and resistance R1, and resistance R1 and electric capacity C3 is simultaneously
Connection, resistance R1 both ends connect rectifier bridge D1 input terminal and lead-out terminal respectively.
The single-chip microcomputer power supply unit includes metal-oxide-semiconductor Q1, voltage-regulator diode D2 and three-terminal voltage-stabilizing pipe U1, metal-oxide-semiconductor Q1 grid
Pole connection voltage-regulator diode D2 negative electrode, D2 anode are connected and are grounded with the negative output terminals of rectification filtering unit, resistance
R2 is connected across between the electrode input end of rectification filtering unit and Q1 grid；Electric capacity C7 is connected across voltage-regulator diode D2 the two poles of the earth
Between, Q1 drain electrode is connected with the positive output terminals of rectification filtering unit, Q1 source electrode connection resistance R3；Resistance R3's is another
End connection voltage-stabiliser tube U1 input terminal, electric capacity C4 one end are connected between resistance R3 and voltage-stabiliser tube U1 inputs, the other end
Ground connection；Voltage-stabiliser tube U1 output end output voltage is powered to single-chip microcomputer U2, in voltage-stabiliser tube U1 output end and connecing for voltage-stabiliser tube U1
Electric capacity C5 and C6 are parallel between ground terminal.
The N-MOS that the metal-oxide-semiconductor Q1 is model 1N60 is managed.
The three-terminal voltage-stabilizing pipe U1 models TLV1117-33.
The resistance R7 and resistance R6 are adjustable resistance.
The utility model also provides a kind of illuminator with above-mentioned photosensitive detection lighting circuit, and photodiode is pacified
Mounted in on the light source board of LED same levels.
Photosensitive detection lighting circuit provided by the utility model judges photosensor signal by single-chip microcomputer, and is controlled by single-chip microcomputer
LED switch so that the light that lighting source is sent will not interfere to photosensor signal, so as to which light-sensitive element is installed
On the light source board for laying light source, the structural intergrity and aesthetic property of illuminator are maintained, it is especially suitable for LED light product-derived
With.
The utility model is further elaborated below by way of the drawings and specific embodiments.
Brief description of the drawings：
Fig. 1 is the circuit diagram of the protection pressure unit, rectification filtering unit and the single-chip microcomputer power supply unit that are sequentially connected；
Fig. 2 is the circuit diagram of the photosensitive identifying unit of single-chip microcomputer；
Fig. 3 is the circuit diagram of LED drive unit.
Embodiment：
As shown in Figure 1 to Figure 3, a kind of photosensitive detection lighting circuit on illuminator provided by the utility model,
Mainly driven by protection pressure unit, rectification filtering unit, single-chip microcomputer power supply unit, the photosensitive identifying unit of single-chip microcomputer and LED
Unit, which is sequentially connected electrically, to be formed.Wherein, the input of pressure unit is protected to connect AC power, protection pressure unit will overall electricity
The maximum operating currenbt on road is limited in suitable scope.Rectification filtering unit is that alternating current is converted into direct current, and is passed through
The DC high-voltage power supply of output smoothing is filtered, the LED that the high direct voltage of rectification filtering unit output is returned in LED drive unit is supplied
Electricity.High voltage direct current after rectifying and wave-filtering is converted into stable low-voltage direct and supplies electricity to single-chip microcomputer power supply by single-chip microcomputer power supply unit.
The photosensitive identifying unit of single-chip microcomputer detects the optical signal in environment by photodiode, and converts optical signal into photoelectric current feedback
To single-chip microcomputer, the reference value of photoelectric current is set with single-chip microcomputer in advance, single-chip microcomputer carries out the photoelectric current received and setting value
Compare, and determine whether to export certain frequency and the waveform of dutycycle to LED drive unit according to imposing a condition, so as to determine to be
It is no to light LED light source.
The particular circuit configurations of above-mentioned each unit are provided below in conjunction with accompanying drawing：
Protect pressure unit include overcurrent fuse F1, decompression current limiting capacitance C1 and C2, after electric capacity C1 and C2 parallel connection with guarantor
Dangerous silk F1 series connection, protects the input of pressure unit to connect AC power, protects the output end and rectifying and wave-filtering list of pressure unit
The ac terminal of rectifier bridge in member is connected.
Rectification filtering unit includes rectifier bridge D1, high-voltage electrolytic capacitor C3 and resistance R1, and resistance R1 is in parallel with electric capacity C3, electricity
Resistance R1 both ends connect rectifier bridge D1 input terminal and lead-out terminal respectively.
Single-chip microcomputer power supply unit includes model 1N60 N-MOS pipes Q1, voltage-regulator diode D2 and model TLV1117-
33 three-terminal voltage-stabilizing pipe U1, metal-oxide-semiconductor Q1 grid connection voltage-regulator diode D2 negative electrode, D2 anode and rectification filtering unit
Negative output terminals are connected and are grounded, and resistance R2 is connected across between the electrode input end of rectification filtering unit and Q1 grid；Electricity
Hold C7 to be connected across between voltage-regulator diode D2 the two poles of the earth, Q1 drain electrode is connected with the positive output terminals of rectification filtering unit, Q1
Source electrode connection resistance R3；Resistance R3 other end connection voltage-stabiliser tube U1 input terminal, electric capacity C4 one end is connected to resistance
Between R3 and voltage-stabiliser tube U1 inputs, other end ground connection；Voltage-stabiliser tube U1 output end output voltage is powered to single-chip microcomputer U2, steady
Electric capacity C5 and C6 are parallel between pressure pipe U1 output end and voltage-stabiliser tube U1 ground terminal.Single-chip microcomputer power supply unit exports 3.6V
Voltage is powered to single-chip microcomputer U2 1 pin.
The photosensitive identifying unit of single-chip microcomputer includes the single-chip microcomputer U2 of eight binding posts and by resistance R7 and photosensitive two pole
The photosensitive detection circuit of pipe D3 compositions, single-chip microcomputer U2 6 pin lead-out terminals are connected with the input terminal of LED drive unit, monolithic
Machine U2 5 pin lead-out terminals connection resistance R6, single-chip microcomputer U2 7 pin lead-out terminals are connected with the resistance R6 other end, resistance R6
Photodiode D3 negative electrode is connected to the common port of 7 pin, photodiode D3 anode is connected with single-chip microcomputer U2 8 pin,
Single-chip microcomputer U2 8 pin ground connection, resistance R7 one end are connected with photodiode D3 negative electrode, 1 pin of the other end and single-chip microcomputer U2
Input terminal is connected, and 1 pin input terminal is connected with the output end of single-chip microcomputer power supply unit.The photosensitive identifying unit of single-chip microcomputer also includes
Electric capacity C8, electric capacity C8 one end are connected with single-chip microcomputer U2 1 pin, and the other end is connected with single-chip microcomputer U2 8 pin.Electric capacity C8 setting
High-frequency interferencing signal can be filtered out, makes single-chip microcomputer U2 work more stable.
LED drive unit includes high-voltage three-pole pipe Q2, LED, current-limiting resistance R4 and pull down resistor R5, and the one of current-limiting resistance R4
End is connected with single-chip microcomputer U2 6 pin, and the other end is connected with high-voltage three-pole pipe Q2 base stage；Pull down resistor R5 one end connection high pressure
Triode Q2 base stage, other end ground connection；High-voltage three-pole pipe Q2 grounded emitter, Q2 colelctor electrode are connected with LED negative electrode,
VCC ends connection in LED anode and rectification filtering unit.
It is provided by the utility model it is photosensitive detection lighting circuit operation principle be：Detected by photodiode D3 in environment
Brightness, and convert optical signal into photoelectric current and feed back to single-chip microcomputer U2, the electric current for comparing is set with single-chip microcomputer U2
Reference value, and the setting waveform frequency in need exported to LED and dutycycle.When LED normal luminous, photodiode D3
Detect the optical signal consistent with LED operation frequency and be superimposed with the optical signal in surrounding environment, single-chip microcomputer U2 can be to folded
The signal average added judged, if average, less than the reference value of setting, it is defeated that 6 pin of single-chip microcomputer are continuously LED drive unit
Go out the waveform of fixed frequency and dutycycle, maintain LED normal luminous.Meanwhile single-chip microcomputer U2 5 pin export high level and pass through electricity
Hinder R6 and provide compensation electric current to photodiode D3, to change photodiode D3 operating current, so as to improve photosensitive judgement
The sensitivity of circuit.If average stops output waveform higher than the reference value of setting, single-chip microcomputer U2 6 pin, so as to which LED extinguishes.
Resistance R7 and R6 in single-chip microcomputer identifying unit are adjustable resistance, by the resistance size for adjusting resistance R7, thus it is possible to vary lamp
Have the illuminance started working, adjustment resistance R6 resistance size, thus it is possible to vary the illuminance requirement that light fixture is stopped.
Above-mentioned photosensitive detection lighting circuit is applied in illuminator, photodiode D3 can be arranged on LED light
On source plate, without avoiding LED illuminating sources again, it is ensured that the integrality and overall aesthetics of fitting structure, especially suitable for
Used in the LED illumination lamp such as LEDbulb lamp or filament lamp.
Above example only to illustrate the technical solution of the utility model and unrestricted, those of ordinary skill in the art couple
Other modifications or equivalent substitution that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope, it all should cover in right of the present utility model.
Claims (10)
- A kind of 1. photosensitive detection lighting circuit, it is characterised in that：Including protection pressure unit, the rectifying and wave-filtering list being sequentially connected electrically Member, single-chip microcomputer power supply unit, the photosensitive identifying unit of single-chip microcomputer and LED drive unit；The photosensitive identifying unit of single-chip microcomputer includes Single-chip microcomputer U2 and the photosensitive detection circuit being made up of resistance R7 and photodiode D3, single-chip microcomputer U2 6 pin lead-out terminals with The input terminal of LED drive unit is connected, single-chip microcomputer U2 5 pin lead-out terminals connection resistance R6, single-chip microcomputer U2 7 pin output ends Son is connected with the resistance R6 other end, and the common port of resistance R6 and 7 pin is connected to photodiode D3 negative electrode, photodiode D3 anode is connected with single-chip microcomputer U2 8 pin, single-chip microcomputer U2 8 pin ground connection, resistance R7 one end and photodiode D3 the moon Extremely it is connected, the other end is connected with single-chip microcomputer U2 1 pin input terminal, the output end of 1 pin input terminal and single-chip microcomputer power supply unit Connection；The frequency and dutycycle of the reference value of input photoelectric current and output waveform in the single-chip microcomputer U2, photodiode D3 The photo-signal detected feeds back to single-chip microcomputer U2 and judged for single-chip microcomputer, single if the photo-signal of feedback is less than reference value Piece machine U2 6 pin export predeterminated frequency and the waveform of dutycycle lights LED to LED drive unit, while single-chip microcomputer U2 5 pin Export high level and provide compensation electric current to photodiode D3 by resistance R6；If the photo-signal for feeding back to single-chip microcomputer U2 is high In reference value, then single-chip microcomputer U2 6 pin closing output makes LED extinguish.
- A kind of 2. photosensitive detection lighting circuit according to claim 1, it is characterised in that：The single-chip microcomputer is photosensitive to judge list Member also includes electric capacity C8, and electric capacity C8 one end is connected with single-chip microcomputer U2 1 pin, and the other end is connected with single-chip microcomputer U2 8 pin.
- A kind of 3. photosensitive detection lighting circuit according to claim 1, it is characterised in that：The LED drive unit includes High-voltage three-pole pipe Q2, LED, current-limiting resistance R4 and pull down resistor R5, current-limiting resistance R4 one end are connected with single-chip microcomputer U2 6 pin, The other end is connected with high-voltage three-pole pipe Q2 base stage；Pull down resistor R5 one end connection high-voltage three-pole pipe Q2 base stage, the other end Ground connection；High-voltage three-pole pipe Q2 grounded emitter, Q2 colelctor electrode are connected with LED negative electrode, LED anode and rectifying and wave-filtering list VCC ends connection in member.
- A kind of 4. photosensitive detection lighting circuit according to claim 1, it is characterised in that：The protection pressure unit includes Overcurrent fuse F1, decompression current limiting capacitance C1 and C2, connect with fuse F1 after electric capacity C1 and C2 parallel connection, protect pressure unit Input connects AC power, protects the output end of pressure unit and the ac terminal phase of the rectifier bridge in rectification filtering unit Even.
- A kind of 5. photosensitive detection lighting circuit according to claim 1, it is characterised in that：The rectification filtering unit includes Rectifier bridge D1, high-voltage electrolytic capacitor C3 and resistance R1, resistance R1 is in parallel with electric capacity C3, and resistance R1 both ends connect rectifier bridge respectively D1 input terminal and lead-out terminal.
- A kind of 6. photosensitive detection lighting circuit according to claim 1, it is characterised in that：The single-chip microcomputer power supply unit bag Metal-oxide-semiconductor Q1, voltage-regulator diode D2 and three-terminal voltage-stabilizing pipe U1, metal-oxide-semiconductor Q1 grid connection voltage-regulator diode D2 negative electrode are included, D2's Anode is connected and is grounded with the negative output terminals of rectification filtering unit, and resistance R2 is connected across the positive pole input of rectification filtering unit Between end and Q1 grid；Electric capacity C7 is connected across between voltage-regulator diode D2 the two poles of the earth, Q1 drain electrode and rectification filtering unit Positive output terminals are connected, Q1 source electrode connection resistance R3；Resistance R3 other end connection voltage-stabiliser tube U1 input terminal, electric capacity C4 one end is connected between resistance R3 and voltage-stabiliser tube U1 inputs, other end ground connection；Voltage-stabiliser tube U1 output end output voltage Powered to single-chip microcomputer U2, electric capacity C5 and C6 are parallel between voltage-stabiliser tube U1 output end and voltage-stabiliser tube U1 ground terminal.
- A kind of 7. photosensitive detection lighting circuit according to claim 6, it is characterised in that：The metal-oxide-semiconductor Q1 is model 1N60 N-MOS pipes.
- A kind of 8. photosensitive detection lighting circuit according to claim 6, it is characterised in that：The three-terminal voltage-stabilizing pipe U1 models For TLV1117-33.
- A kind of 9. photosensitive detection lighting circuit according to claim 1, it is characterised in that：The resistance R7 and resistance R6 are Adjustable resistance.
- 10. a kind of illuminator of any photosensitive detection lighting circuit with described in claim 1 to 9, its feature exist In：Photodiode in the illuminator be arranged on on the light source board of LED same levels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720761566.5U CN206932442U (en) | 2017-06-28 | 2017-06-28 | A kind of photosensitive detection lighting circuit and the illuminator with the circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720761566.5U CN206932442U (en) | 2017-06-28 | 2017-06-28 | A kind of photosensitive detection lighting circuit and the illuminator with the circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206932442U true CN206932442U (en) | 2018-01-26 |
Family
ID=61353266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720761566.5U Expired - Fee Related CN206932442U (en) | 2017-06-28 | 2017-06-28 | A kind of photosensitive detection lighting circuit and the illuminator with the circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206932442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534107A (en) * | 2018-03-21 | 2018-09-14 | 杨勇平 | The method of mini USB lamps and the mini USB lamps of control |
| CN115150992A (en) * | 2022-08-23 | 2022-10-04 | 宁波耀泰电器有限公司 | Integrated photosensitive dimming circuit |
-
2017
- 2017-06-28 CN CN201720761566.5U patent/CN206932442U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534107A (en) * | 2018-03-21 | 2018-09-14 | 杨勇平 | The method of mini USB lamps and the mini USB lamps of control |
| CN115150992A (en) * | 2022-08-23 | 2022-10-04 | 宁波耀泰电器有限公司 | Integrated photosensitive dimming circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180126 Termination date: 20190628 |