CN205610977U - Multicircuit is handled formula LED lamp and is used energy -conserving light control system - Google Patents
Multicircuit is handled formula LED lamp and is used energy -conserving light control system Download PDFInfo
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- CN205610977U CN205610977U CN201620199668.8U CN201620199668U CN205610977U CN 205610977 U CN205610977 U CN 205610977U CN 201620199668 U CN201620199668 U CN 201620199668U CN 205610977 U CN205610977 U CN 205610977U
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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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Abstract
The utility model discloses a multicircuit is handled formula LED lamp and is used energy -conserving light control system, a serial communication port, including central processing unit, the bee calling organ who all is connected with central processing unit, power, serial -type constant current protection circuit, processing circuit and signal filtering amplification circuit are with the LED lamp that serial -type constant current protection circuit is connected, the infrared probe who is connected with processing circuit to and the photosensitive sensor who is connected with signal filtering amplification circuit, the output circuit that processing circuit was made an uproar amplifier circuit and input and is connected with the output that falls the amplifier circuit that makes an uproar by falling of being connected with infrared probe of input, output circuit's output is connected with central processing unit. The utility model discloses an energy -conserving light control system is used to the LED lamp, makes LED table lamp realize automatic adjustting of the lighteness and self -closing, the very big electric energy of having saved to LED table lamp's service life can be fully improved, use cost has been reduced.
Description
Technical field
This utility model relates to the technical field of electronic equipment, specifically refers to a kind of many processing of circuit formula LED
Use energy-saving photo-controlled system.
Background technology
LED desk lamp because of when it uses mobility strong and be widely used by people, current people use more
Fixed light source and the LED desk lamp of adjustable light source, the LED desk lamp of existing adjustable light source is can be by adjusting
Joint switch carries out brightness regulation, with the brightness requirement of satisfied different ranges.But, people are using this
Brightness to desk lamp cannot be adjusted accurately during the LED desk lamp of kind of adjustable light source, cause LED desk lamp
Luminance shortage or brightness too strong, and eyes are caused greatly injury.
And, existing LED desk lamp needs manually to close after using, and often can forget due to people to close
Close desk lamp and easily cause the waste of electric energy.
Utility model content
The purpose of this utility model is to overcome LED desk lamp of the prior art can not be automatically adjusted the bright of light
Degree, the defect that can not be automatically switched off, this utility model provides a kind of many processing of circuit formula LED with energy-conservation
Light control system.
This utility model is achieved through the following technical solutions: a kind of many processing of circuit formula LED is with energy-conservation
Light control system, including central processing unit, the buzzer being all connected with central processing unit, power supply, tandem
Constant current protection circuit, signal processing circuit and signal filtering amplification treatment circuit, with tandem constant current protection electricity
The LED that road is connected, the infrared probe being connected with signal processing circuit, and put with signal filtering
The light sensor that big process circuit is connected.
Described tandem constant current protection circuit is by audion VT6, audion VT4, audion VT5, polarity
Electric capacity C15, field effect transistor MOS2, positive pole base stage with audion VT6 after resistance R27 is connected,
The polar capacitor C12 that negative pole colelctor electrode with audion VT4 after resistance R28 is connected, one end and three poles
The resistance R33 that the emitter stage of pipe VT4 is connected, the other end is connected with the base stage of audion VT5, negative pole
After resistance R32, the base stage with audion VT4 is connected, positive pole is connected with the grid of field effect transistor MOS2
Polar capacitor C14, the P pole connect is connected with the base stage of audion VT6, N pole after resistance R29 with pole
Diode D9, the P pole that the negative pole of property electric capacity C14 is connected after resistance R30 with the base of audion VT6
The diode D10, P that pole is connected, N pole is connected with the source electrode of field effect transistor MOS2 after resistance R34
Pole emitter stage with audion VT6 after resistance R31 is connected, N pole after adjustable resistance R36 with polarity
The diode D11 that the negative pole of electric capacity C15 is connected, one end is connected with the positive pole of polar capacitor C15, separately
The resistance R35 that one end is connected with the base stage of audion VT5, and the P pole phase of positive pole and diode D10
The polar capacitor C13 composition that connection, negative pole are connected with the P pole of diode D11；Described audion VT6
Emitter stage and the positive pole of polar capacitor C12 be collectively forming tandem constant current protection circuit input and with in
Central processor is connected, the grounded collector of this audion VT6；The grounded collector of described audion VT5,
Its emitter stage is connected with the drain electrode of field effect transistor MOS2, and meanwhile, its base stage and polar capacitor C15's is negative
Pole is collectively forming the outfan of tandem constant current protection circuit and is connected with LED.
Described signal processing circuit includes the noise reduction amplifying circuit that input is connected with infrared probe, and defeated
Enter the output circuit that is connected with the outfan of noise reduction amplifying circuit of end, the outfan of described output circuit and in
Central processor is connected.
Described noise reduction amplifying circuit by amplifier P4, amplifier P5, audion VT3, field effect transistor MOS1,
One end is connected with the negative input of amplifier P4, the other end is as the electricity of the input of noise reduction amplifying circuit
Resistance R14, positive pole is connected with the outfan of amplifier P4, negative pole after resistance R15 with amplifier P4's
Polar capacitor C8, the P pole that electrode input end is connected after resistance R16 with the outfan phase of amplifier P5
The diode D5 that connection, N pole are connected with the electrode input end of amplifier P5, positive pole is with amplifier P5's
Negative input is connected, the polar capacitor C7 of minus earth, and one end is connected with the outfan of amplifier P5
Connect, resistance R18, P pole that the other end is connected with the base stage of audion VT3 and field effect transistor MOS1
The diode D6 that source electrode is connected, N pole is connected with the emitter stage of audion VT3, negative pole is through resistance R20
Be connected with the drain electrode of field effect transistor MOS1 afterwards, positive pole after resistance R17 with the outfan phase of amplifier P4
The polar capacitor C9 connected, and one end is connected with the positive pole of polar capacitor C9, the other end and field effect
The resistance R19 composition that the grid of pipe MOS1 is connected；The outfan of described amplifier P5 and polar capacitor
The negative pole of C8 is connected；The grounded collector of described audion VT3；The drain electrode of described field effect transistor MOS1
Outfan as noise reduction amplifying circuit.
Described output circuit is by amplifier P6, and positive pole is connected with the negative input of amplifier P6, negative pole warp
Polar capacitor C10, the P pole being connected with the drain electrode of field effect transistor MOS1 after resistance R21 is sequentially through resistance
After R23 and adjustable resistance R22 the negative pole with polar capacitor C10 be connected, the positive pole of N pole and amplifier P6
Diode D7, the P pole that input is connected negative pole with polar capacitor C10 after resistance R24 is connected,
The diode D8 that N pole outfan with amplifier P6 after resistance R26 is connected, and positive pole and two poles
The polarity electricity that the P pole of pipe D7 is connected, negative pole outfan with amplifier P6 after resistance R25 is connected
Hold C11 composition；The outfan of described amplifier P6 is as the outfan of output circuit.
Described signal filtering amplification treatment circuit includes that the signal filtering that input is connected with light sensor connects
Receive circuit, the bandpass filtering amplifying circuit being connected with the outfan of input with signal wave reception filtering circuit；
The outfan of described bandpass filtering amplifying circuit is connected with central processing unit.
Described signal filtering receives electricity routing amplifier P1, positive pole is connected with the electrode input end of amplifier P1,
Negative pole receives the polar capacitor C1 of the input of circuit, one end and the negative pole of amplifier P1 as signal filtering
The resistance R3 that input is connected, the other end is connected with the outfan of amplifier P1, negative pole is through resistance R4
The polarity that outfan with amplifier P1 is connected afterwards, positive pole is connected with the negative input of amplifier P1
Electric capacity C2, and P pole is sequentially connected through resistance R2 negative pole with polar capacitor C1 after resistance R1,
The diode D1 composition that N pole is connected with bandpass filtering amplifying circuit after resistance R5；Described amplifier P1
Outfan be connected with bandpass filtering amplifying circuit.
Described bandpass filtering amplifying circuit by amplifier P2, amplifier P3, audion VT1, audion VT2,
Positive pole electrode input end with amplifier P3 after adjustable resistance R8 is connected, negative pole with amplifier P2 just
The polar capacitor C3 that pole input is connected, one end is connected with the electrode input end of amplifier P3, another
Resistance R11, the N pole of end ground connection is connected with the negative input of amplifier P2, P pole is after resistance R9
Diode D2, the N pole being connected with the base stage of audion VT2 defeated with amplifier P3 after resistance R12
Go out end be connected, P pole sequentially after adjustable resistance R10 and resistance R7 with the emitter stage phase of audion VT1
Connect diode D4, positive pole is connected with the colelctor electrode of audion VT2, negative pole after resistance R13 and
The polar capacitor C6 that the outfan of amplifier P3 is connected, positive pole after inductance L with the output of amplifier P3
Polar capacitor C5, the P pole that end is connected, negative pole is connected with the emitter stage of audion VT2 and amplifier P2
The diode that negative input is connected, N pole outfan with amplifier P2 after resistance R6 is connected
D3, and negative pole is connected with the outfan of amplifier P2, the negative input phase of positive pole and amplifier P2
The polar capacitor C4 composition connected；The positive pole of described polar capacitor C3 is connected with the outfan of amplifier P1；
The colelctor electrode of described audion VT2 N pole with diode D1 after resistance R5 is connected；Described three poles
The grounded collector of pipe VT1；The negative input of described amplifier P3 is connected with the positive pole of polar capacitor C5
Connecing, the outfan of this amplifier P3 is as the outfan of bandpass filtering amplifying circuit.
For guaranteeing practical effect of the present utility model, described light sensor is that RA-1809NO is photosensitive
Sensor；Described infrared probe is KR-P900 Radix Rumicis infrared probe.
This utility model compared with prior art has the following advantages and beneficial effect:
(1) the luminance signal transmission central processing unit that light sensor of the present utility model gathers, central authorities process
After this luminance signal is analyzed by device, the brightness of LED is adjusted by the corresponding electric current that controls of output, in
LED also can be automatically switched off by central processor when infrared probe collects unmanned signal, thus effectively
Achieve the brightness to LED desk lamp automatically adjust and be automatically switched off, save electric energy greatly.
(2) tandem constant current protection circuit of the present utility model can carry out perseverance to the electric current of central processing unit output
Stream, the most also can carry out short-circuit protection to LED, it is ensured that LED obtains stable operating current, thus
Guarantee the accuracy that this energy-conservation light control system is light-operated to LED.
(3) infrared probe is detected by the noise reduction amplifying circuit in signal processing circuit of the present utility model
Signal in LED desk lamp range carries out noise reduction, passes after being amplified by the signal after noise reduction process simultaneously
Being defeated by output circuit, this output circuit is transferred to central processing unit after being filtered amplifying to the signal after amplifying,
Thus effectively raise the accuracy that LED desk lamp is automatically switched off by this energy-conservation light control system.
(4) signal filtering in signal filtering amplification treatment circuit of the present utility model receives circuit and can eliminate light
Interference signal in the luminance signal of dependent sensor transmission, meanwhile, the band in signal filtering amplification treatment circuit
Pass filter amplifying circuit is transferred to centre after being filtered the luminance signal after anti-interference process amplifying
Reason device, thus improve the accuracy of this energy-conservation light control system.
(5) light sensor of the present utility model is RA-1809NO type light sensor, this light sensor
Stable performance, the scope gathering information is wide, can accurately be acquired the brightness in acquisition range.
(6) this utility model infrared probe is KR-P900 type Radix Rumicis infrared probe, this infrared probe
Can carry out the detection of Radix Rumicis 180 °, it has the advantages such as accuracy is high, sensitivity is strong, thus it is ensured that this
The LED of utility model controls, by intelligent light-controlled system, the accuracy that LED desk lamp carries out being automatically switched off.
(7) LED energy-saving photo-controlled system of the present utility model, makes LED desk lamp achieve automatization's brightness
Regulation, and can be automatically switched off at nobody when, it is greatly saved electric energy, and can fully carry
The high useful life of LED desk lamp, reduces use cost.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present utility model.
Fig. 2 is the electrical block diagram of signal filtering amplification treatment circuit of the present utility model.
Fig. 3 is the electrical block diagram of signal processing circuit of the present utility model.
Fig. 4 is the electrical block diagram of tandem constant current protection circuit of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in further detail, but enforcement of the present utility model
Mode is not limited to this.
As it is shown in figure 1, this utility model includes central processing unit, the buzzing being all connected with central processing unit
Device, power supply, tandem constant current protection circuit, signal processing circuit and signal filtering amplification treatment circuit, with
The LED that tandem constant current protection circuit is connected, the infrared probe being connected with signal processing circuit,
And the light sensor being connected with signal filtering amplification treatment circuit.Wherein, at this signal filtering amplification
Reason circuit is as in figure 2 it is shown, it includes that signal filtering receives circuit and bandpass filtering amplifying circuit；Described signal
Process circuit as it is shown on figure 3, it includes noise reduction amplifying circuit and output circuit.
For guaranteeing reliability service of the present utility model, described central processing unit preferentially uses the integrated core of LT3477
Sheet, this LT3477 integrated chip SW pin is connected with buzzer, and VIN pin is connected with power supply.Institute
The power supply stated is 12V DC voltage, and this 12V DC voltage is that central processing unit is powered.
During operation, described light sensor preferentially uses RA-1805NO light sensor to realize；This light
Dependent sensor is for gathering the luminance signal that LED desk lamp range is indoor, and the luminance signal that will collect
Through signal filtering amplification treatment circuit, the interference signal in luminance signal is eliminated, simultaneously to anti-interference place
Signal after reason is transferred to central processing unit after being filtered amplifying.It is set with suitable in described central processing unit
Closing the brightness reference value of human eye, brightness reference value is preferentially set to 1000cd by this utility model.This centre
The brightness data signal received is converted to reason device brightness value and the brightness reference value that prestores with it is compared,
And controlling electric current accordingly according to the result output of comparison, this control electric current is concatenated formula constant current protection circuit and enters
There is provided a stable operating current for LED after row constant current, make brightness holding and the centre of LED desk lamp
The brightness reference value prestored in reason device is consistent.I.e. central processing unit can be according to the nature of LED desk lamp range
The electric current that brightness is different to LED output, makes the brightness of LED desk lamp remain at 1000cd, thus
The eyes being effectively protected people will not come to harm.
Wherein, people are when opening LED desk lamp, and the infrared probe in LED desk lamp is opened simultaneously all the time
Opening, infrared probe of the present utility model is KR-P900 Radix Rumicis infrared probe, and this infrared probe can be right
The range of LED desk lamp carries out the detection of Radix Rumicis 180 °, the information that this infrared probe will detect simultaneously
Transmitting through signal processing circuit, the LED desk lamp that infrared probe is detected by the noise reduction amplifying circuit in this uses
In the range of signal carry out noise reduction, be transferred to output circuit after being amplified by the signal after noise reduction process simultaneously,
This output circuit is transferred to central processing unit after being filtered amplifying to the signal after amplifying, and central processing unit is then
The information of the range of the LED desk lamp detected by infrared probe controls the open and close of LED.
During LED desk lamp work, when people leaves the investigative range that infrared probe is visited, infrared probe is visited this letter
Number feeding back to central processing unit, at this moment central processing unit output controls electric current to buzzer, and buzzer starts to send out
Going out prompting sound, this prompting sound is used for reminding people that LED desk lamp will turn off, and this central processing unit is then honeybee
Ring device is automatically stopped after working 3 seconds and LED desk lamp is exported electric current, and now LED desk lamp is closed, simultaneously
The central processing unit of LED desk lamp also can return to reopen state.
As in figure 2 it is shown, described signal filtering amplification treatment circuit includes that signal filtering receives circuit and the logical filter of band
Ripple amplifying circuit；Described signal filtering receives electricity routing amplifier P1, resistance R1, resistance R2, resistance R3,
Resistance R4, resistance R5, polar capacitor C1, polar capacitor C2, and diode D1.
During connection, the positive pole of polar capacitor C1 is connected with the electrode input end of amplifier P1, negative pole conduct
Signal filtering receives the input of circuit and is connected with light sensor.One end of resistance R3 and amplifier
The negative input of P1 is connected, the other end is connected with the outfan of amplifier P1.Polar capacitor C2's
Negative pole outfan with amplifier P1 after resistance R4 is connected, the negative input of positive pole and amplifier P1
It is connected.The P pole of diode D1 sequentially after resistance R2 and resistance R1 with the negative pole phase of polar capacitor C1
Connect, N pole is connected with bandpass filtering amplifying circuit after resistance R5.The outfan of described amplifier P1
It is connected with bandpass filtering amplifying circuit.
Further, described bandpass filtering amplifying circuit by amplifier P2, amplifier P3, audion VT1,
Audion VT2, resistance R6, resistance R7, adjustable resistance R8, resistance R9, adjustable resistance R10, resistance
R11, resistance R12, resistance R13, polar capacitor C3, polar capacitor C4, polar capacitor C5, polarity electricity
Hold C6, diode D2, diode D3, and diode D4 composition.
During connection, the positive pole of polar capacitor C3 after adjustable resistance R8 with the electrode input end phase of amplifier P3
Connect, negative pole is connected with the electrode input end of amplifier P2.One end of resistance R11 is with amplifier P3's
Electrode input end is connected, other end ground connection.The N pole of diode D2 and the negative input of amplifier P2
Be connected, P pole base stage with audion VT2 after resistance R9 is connected.The N pole of diode D4 is through electricity
Be connected with the outfan of amplifier P3 after resistance R12, P pole is sequentially after adjustable resistance R10 and resistance R7
It is connected with the emitter stage of audion VT1.
Wherein, the positive pole of polar capacitor C6 is connected with the colelctor electrode of audion VT2, negative pole is through resistance R13
Outfan with amplifier P3 is connected afterwards.The positive pole of polar capacitor C5 after inductance L with amplifier P3
Outfan be connected, negative pole is connected with the emitter stage of audion VT2.The P pole of diode D3 with put
The negative input of big device P2 is connected, N pole outfan with amplifier P2 after resistance R6 is connected.
The negative pole of polar capacitor C4 is connected with the outfan of amplifier P2, positive pole inputs with the negative pole of amplifier P2
End is connected.
The positive pole of described polar capacitor C3 is connected with the outfan of amplifier P1；Described audion VT2's
Colelctor electrode N pole with diode D1 after resistance R5 is connected；The colelctor electrode of described audion VT1 connects
Ground；The negative input of described amplifier P3 is connected with the positive pole of polar capacitor C5, this amplifier P3's
Outfan is connected as the outfan of bandpass filtering amplifying circuit the SS pin of chip integrated with LT3477.
When this utility model runs, the signal filtering in signal filtering amplification treatment circuit receives circuit by filter
Ripple polar capacitor C1 and filtering polar capacitor C2 eliminates the interference letter in the luminance signal of light sensor transmission
Number.Meanwhile, the luminance signal amplified device P1 after this process is transferred to bandpass filtering amplifying circuit after amplifying,
Luminance signal after processing then again is filtered by this bandpass filtering amplifying circuit by filtering polar capacitor C3,
To guarantee the smoothness of luminance signal, and transmit after amplified for the most filtered luminance signal device P3 amplification
To central processing unit, it is ensured that the accuracy of the luminance signal that central processing unit receives, thus improve this
The accuracy of energy-saving photo-controlled system.
As it is shown on figure 3, described signal processing circuit includes noise reduction amplifying circuit and output circuit；Described noise reduction
Amplifying circuit by amplifier P4, amplifier P5, audion VT3, field effect transistor MOS1, resistance R14,
Resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, resistance R20, polar capacitor
C7, polar capacitor C8, polar capacitor C9, diode D5, and diode D6 form.
During connection, one end of resistance R14 is connected with the negative input of amplifier P4, other end conduct
The input of noise reduction amplifying circuit is also connected with infrared probe.The positive pole of polar capacitor C8 and amplifier
The outfan of P4 is connected, negative pole electrode input end with amplifier P4 after resistance R15 is connected.Two
The P pole of pole pipe D5 outfan with amplifier P5 after resistance R16 is connected, N pole and amplifier P5
Electrode input end be connected.The positive pole of polar capacitor C7 is connected with the negative input of amplifier P5,
Minus earth.One end of resistance R18 is connected with the outfan of amplifier P5, the other end and audion VT3
Base stage be connected.
Wherein, the P pole of diode D6 be connected with the source electrode of field effect transistor MOS1, N pole and audion
The emitter stage of VT3 is connected.The negative pole of polar capacitor C9 after resistance R20 with field effect transistor MOS1
Drain electrode is connected, positive pole outfan with amplifier P4 after resistance R17 is connected.One end of resistance R19
Be connected with the positive pole of polar capacitor C9, the other end is connected with the grid of field effect transistor MOS1.Described put
The big outfan of device P5 is connected with the negative pole of polar capacitor C8；The grounded collector of described audion VT3；
The drain electrode of described field effect transistor MOS1 is as the outfan of noise reduction amplifying circuit.
Further, described output circuit by amplifier P6, resistance R21, resistance R22, resistance R23,
Resistance R24, resistance R25, resistance R26, polar capacitor C10, polar capacitor C11, diode D7,
And diode D8 composition.
During connection, the positive pole of polar capacitor C10 is connected with the negative input of amplifier P6, negative pole is through electricity
It is connected with the drain electrode of field effect transistor MOS1 after resistance R21.The P pole of diode D7 is sequentially through resistance R23
Be connected with negative pole with polar capacitor C10 after adjustable resistance R22, the positive pole input of N pole and amplifier P6
End is connected.The P pole of diode D8 negative pole with polar capacitor C10 after resistance R24 is connected, N
Pole outfan with amplifier P6 after resistance R26 is connected.The positive pole of polar capacitor C11 and diode
The P pole of D7 is connected, negative pole outfan with amplifier P6 after resistance R25 is connected.Described amplification
The outfan of device P6 is connected as the outfan of output circuit the FBP pin of chip integrated with LT3477.
During operation, the LED desk lamp that infrared probe detects is made by the noise reduction amplifying circuit in signal processing circuit
The bipolar amplifying circuit that signal in the range of with consists of amplifier P4 and amplifier P5 is amplified, and
Signal after amplifying carries out noise reduction process, simultaneously by the signal after noise reduction process by field effect transistor MOS1
Being transferred to output circuit after being amplified, this output circuit transmits after being filtered amplifying to the signal after amplifying
To central processing unit, thus effectively raise what LED desk lamp was automatically switched off by this energy-conservation light control system
Accuracy.
As shown in Figure 4, described tandem constant current protection circuit is by audion VT4, audion VT5, three poles
Pipe VT6, field effect transistor MOS2, resistance R27, resistance R28, resistance R29, resistance R30, resistance
R31, resistance R32, resistance R33, resistance R34, resistance R35, adjustable resistance R36, polar capacitor C12,
Polar capacitor C13, polar capacitor C14, polar capacitor C15, diode D9, diode D10, and
Diode D11 forms.
During connection, the positive pole of polar capacitor C12 base stage with audion VT6 after resistance R27 is connected,
Negative pole colelctor electrode with audion VT4 after resistance R28 is connected.One end of resistance R33 and audion
The emitter stage of VT4 is connected, the other end is connected with the base stage of audion VT5.Polar capacitor C14's is negative
Pole base stage with audion VT4 after resistance R32 is connected, the grid phase of positive pole and field effect transistor MOS2
Connect.The P pole of diode D9 is connected with the base stage of audion VT6, N pole after resistance R29 with pole
The negative pole of property electric capacity C14 is connected.
Wherein, the P pole of diode D10 base stage with audion VT6 after resistance R30 be connected, N pole
After resistance R34, the source electrode with field effect transistor MOS2 is connected.The P pole of diode D11 is through resistance R31
Afterwards the emitter stage with audion VT6 be connected, N pole negative with polar capacitor C15 after adjustable resistance R36
Pole is connected.One end of resistance R35 is connected with the positive pole of polar capacitor C15, the other end and audion VT5
Base stage be connected.The positive pole of polar capacitor C13 is connected with the P pole of diode D10, negative pole and two poles
The P pole of pipe D11 is connected.
The VC pin of the emitter stage chip integrated with LT3477 of described audion VT6 is connected, this three pole
The grounded collector of pipe VT6；The positive pole of described polar capacitor C12 and the SHDN of the integrated chip of LT3477
Pin is connected；The leakage of the grounded collector of described audion VT5, its emitter stage and field effect transistor MOS2
Pole is connected, and meanwhile, the negative pole of its base stage and polar capacitor C15 is collectively forming tandem constant current protection circuit
Outfan and be connected with LED.
During operation, tandem constant current protection circuit can carry out constant current, simultaneously to the electric current of central processing unit output
Also LED can be carried out short-circuit protection, it is ensured that LED obtains stable operating current.When output short-circuit,
Audion VT5 turns on, and audion VT4 cut-off is protected, and now, LED power-off ensure that the highest
Circuit damage.
As it has been described above, this utility model just can well be realized.
Claims (9)
1. the LED energy-saving photo-controlled system of processing of circuit formula more than a kind; it is characterized in that; including central processing unit; buzzer, power supply, tandem constant current protection circuit, signal processing circuit and the signal filtering amplification treatment circuit being all connected with central processing unit; the LED being connected with tandem constant current protection circuit; the infrared probe being connected with signal processing circuit, and the light sensor being connected with signal filtering amplification treatment circuit；nullDescribed tandem constant current protection circuit is by audion VT6，Audion VT4，Audion VT5，Polar capacitor C15，Field effect transistor MOS2，Positive pole base stage with audion VT6 after resistance R27 is connected、The polar capacitor C12 that negative pole colelctor electrode with audion VT4 after resistance R28 is connected，One end is connected with the emitter stage of audion VT4、The resistance R33 that the other end is connected with the base stage of audion VT5，Negative pole base stage with audion VT4 after resistance R32 is connected、The polar capacitor C14 that positive pole is connected with the grid of field effect transistor MOS2，P pole is connected with the base stage of audion VT6、The diode D9 that N pole negative pole with polar capacitor C14 after resistance R29 is connected，P pole base stage with audion VT6 after resistance R30 is connected、The diode D10 that N pole is connected with the source electrode of field effect transistor MOS2 after resistance R34，P pole emitter stage with audion VT6 after resistance R31 is connected、The diode D11 that N pole negative pole with polar capacitor C15 after adjustable resistance R36 is connected，One end is connected with the positive pole of polar capacitor C15、The resistance R35 that the other end is connected with the base stage of audion VT5，And positive pole is connected with the P pole of diode D10、The polar capacitor C13 composition that negative pole is connected with the P pole of diode D11；The emitter stage of described audion VT6 is collectively forming the input of tandem constant current protection circuit with the positive pole of polar capacitor C12 and is connected with central processing unit, the grounded collector of this audion VT6；The grounded collector of described audion VT5, its emitter stage is connected with the drain electrode of field effect transistor MOS2, and meanwhile, its base stage is collectively forming the outfan of tandem constant current protection circuit with the negative pole of polar capacitor C15 and is connected with LED.
One many processing of circuit formula LED energy-saving photo-controlled system the most according to claim 1, it is characterized in that, described signal processing circuit includes the noise reduction amplifying circuit that input is connected with infrared probe, the output circuit being connected with the outfan of input with noise reduction amplifying circuit, the outfan of described output circuit is connected with central processing unit.
nullOne many processing of circuit formula LED energy-saving photo-controlled system the most according to claim 2，It is characterized in that，Described noise reduction amplifying circuit is by amplifier P4，Amplifier P5，Audion VT3，Field effect transistor MOS1，One end is connected with the negative input of amplifier P4、The other end is as the resistance R14 of the input of noise reduction amplifying circuit，Positive pole is connected with the outfan of amplifier P4、The polar capacitor C8 that negative pole electrode input end with amplifier P4 after resistance R15 is connected，P pole outfan with amplifier P5 after resistance R16 is connected、The diode D5 that N pole is connected with the electrode input end of amplifier P5，Positive pole is connected with the negative input of amplifier P5、The polar capacitor C7 of minus earth，One end is connected with the outfan of amplifier P5、The resistance R18 that the other end is connected with the base stage of audion VT3，P pole is connected with the source electrode of field effect transistor MOS1、The diode D6 that N pole is connected with the emitter stage of audion VT3，Negative pole drain electrode with field effect transistor MOS1 after resistance R20 is connected、The polar capacitor C9 that positive pole outfan with amplifier P4 after resistance R17 is connected，And one end is connected with the positive pole of polar capacitor C9、The resistance R19 composition that the other end is connected with the grid of field effect transistor MOS1；The outfan of described amplifier P5 is connected with the negative pole of polar capacitor C8；The grounded collector of described audion VT3；The drain electrode of described field effect transistor MOS1 is as the outfan of noise reduction amplifying circuit.
nullOne many processing of circuit formula LED energy-saving photo-controlled system the most according to claim 3，It is characterized in that，Described output circuit is by amplifier P6，Positive pole is connected with the negative input of amplifier P6、The polar capacitor C10 that negative pole is connected with the drain electrode of field effect transistor MOS1 after resistance R21，P pole is sequentially connected through resistance R23 negative pole with polar capacitor C10 after adjustable resistance R22、The diode D7 that N pole is connected with the electrode input end of amplifier P6，P pole negative pole with polar capacitor C10 after resistance R24 is connected、The diode D8 that N pole outfan with amplifier P6 after resistance R26 is connected，And positive pole is connected with the P pole of diode D7、The polar capacitor C11 composition that negative pole outfan with amplifier P6 after resistance R25 is connected；The outfan of described amplifier P6 is as the outfan of output circuit.
One many processing of circuit formula LED energy-saving photo-controlled system the most according to claim 4, it is characterized in that, described signal filtering amplification treatment circuit includes that the signal filtering that input is connected with light sensor receives circuit, the bandpass filtering amplifying circuit being connected with the outfan of input with signal wave reception filtering circuit；The outfan of described bandpass filtering amplifying circuit is connected with central processing unit.
One many processing of circuit formula LED energy-saving photo-controlled system the most according to claim 5, it is characterized in that, described signal filtering receives electricity routing amplifier P1, positive pole is connected with the electrode input end of amplifier P1, negative pole receives the polar capacitor C1 of the input of circuit as signal filtering, one end is connected with the negative input of amplifier P1, the resistance R3 that the other end is connected with the outfan of amplifier P1, negative pole outfan with amplifier P1 after resistance R4 is connected, the polar capacitor C2 that positive pole is connected with the negative input of amplifier P1, and P pole is sequentially connected through resistance R2 negative pole with polar capacitor C1 after resistance R1, the diode D1 composition that N pole is connected with bandpass filtering amplifying circuit after resistance R5；The outfan of described amplifier P1 is connected with bandpass filtering amplifying circuit.
nullOne many processing of circuit formula LED energy-saving photo-controlled system the most according to claim 6，It is characterized in that，Described bandpass filtering amplifying circuit is by amplifier P2，Amplifier P3，Audion VT1，Audion VT2，Positive pole electrode input end with amplifier P3 after adjustable resistance R8 is connected、The polar capacitor C3 that negative pole is connected with the electrode input end of amplifier P2，One end is connected with the electrode input end of amplifier P3、The resistance R11 of other end ground connection，N pole is connected with the negative input of amplifier P2、The diode D2 that P pole base stage with audion VT2 after resistance R9 is connected，N pole outfan with amplifier P3 after resistance R12 is connected、The diode D4 that P pole is sequentially connected through adjustable resistance R10 emitter stage with audion VT1 after resistance R7，Positive pole is connected with the colelctor electrode of audion VT2、The polar capacitor C6 that negative pole outfan with amplifier P3 after resistance R13 is connected，Positive pole outfan with amplifier P3 after inductance L is connected、The polar capacitor C5 that negative pole is connected with the emitter stage of audion VT2，P pole is connected with the negative input of amplifier P2、The diode D3 that N pole outfan with amplifier P2 after resistance R6 is connected，And negative pole is connected with the outfan of amplifier P2、The polar capacitor C4 composition that positive pole is connected with the negative input of amplifier P2；The positive pole of described polar capacitor C3 is connected with the outfan of amplifier P1；The colelctor electrode of described audion VT2 N pole with diode D1 after resistance R5 is connected；The grounded collector of described audion VT1；The negative input of described amplifier P3 is connected with the positive pole of polar capacitor C5, and the outfan of this amplifier P3 is as the outfan of bandpass filtering amplifying circuit.
One many processing of circuit formula LED energy-saving photo-controlled system the most according to claim 7, it is characterised in that described light sensor is RA-1809NO light sensor.
One many processing of circuit formula LED energy-saving photo-controlled system the most according to claim 8, it is characterised in that described infrared probe is KR-P900 infrared probe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199668.8U CN205610977U (en) | 2016-03-15 | 2016-03-15 | Multicircuit is handled formula LED lamp and is used energy -conserving light control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199668.8U CN205610977U (en) | 2016-03-15 | 2016-03-15 | Multicircuit is handled formula LED lamp and is used energy -conserving light control system |
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| CN205610977U true CN205610977U (en) | 2016-09-28 |
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| CN201620199668.8U Expired - Fee Related CN205610977U (en) | 2016-03-15 | 2016-03-15 | Multicircuit is handled formula LED lamp and is used energy -conserving light control system |
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| CN (1) | CN205610977U (en) |
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Effective date of registration: 20170829 Address after: 523000 Guangdong province Dongguan City Chashan town Hengjiang Electronic City Patentee after: Dongguan Aotong Lighting Co. Ltd. Address before: 611200 Chongzhou Sichuan Economic Development Zone Youth (College) Venture Park Patentee before: CHENGDU SHENCHUAN ENERGY SAVING ENVIRONMENTAL PROTECTION ENGINEERING CO., LTD. |
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Granted publication date: 20160928 Termination date: 20190315 |