CN106973473B - A kind of headlamp is with high resistant filtering type from open-shut control system - Google Patents
A kind of headlamp is with high resistant filtering type from open-shut control system Download PDFInfo
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- CN106973473B CN106973473B CN201710205061.5A CN201710205061A CN106973473B CN 106973473 B CN106973473 B CN 106973473B CN 201710205061 A CN201710205061 A CN 201710205061A CN 106973473 B CN106973473 B CN 106973473B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/12—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by detecting audible sound
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a kind of headlamp with high resistant filtering type from open-shut control system, mainly by diode rectifier U, sound transducer MIC, triode VT2, triode VT3, triode VT4, switch S, high resistant filter circuit, thyristor switching circuit of voltage regulation, and the rectification amplifying circuit being connected respectively with the base stage of the base stage and triode VT4 of the A output end of sound transducer MIC and triode VT2 etc. form；The present invention can by headlamp use scope ambient brightness variation and acoustic information come realize headlamp from open and close, and the sound transducer MIC voltage signal exported can be filtered and be amplified, keep voltage signal more stable, ensure that control effect of the invention, it can effectively solve that headlamp is opened by mistake the problem of opening, and greatly saved electric power resource.
Description
Technical field
The present invention relates to a kind of control circuits, are a kind of headlamp high resistant filtering types from opening and closing control system specifically
System.
Background technique
Current headlamp generallys use mechanical switch to control, and is controlled by controlling conducting and the closure of mechanical switch
The power supply on and off of headlamp.However mechanical switch is during use, there is very big machine due to operating it repeatedly
Tool abrasion, is very easy to damage.In order to solve mechanical switch exist when used for a long time it is easy to wear, be very easy to damage ask
Topic, the voice activated control that people just use one kind and can be acquired to the acoustic information in headlamp use scope come to headlamp
Open or close and controlled, but, there is control effect difference in existing this acoustic control system, lead to headlamp
It is opened by opening by mistake, so as to cause the significant wastage of electric energy, cannot realize energy conservation well.
Summary of the invention
It is an object of the invention to overcome existing acoustic control system to have the defects that control effect is poor, a kind of energy for providing
The open and close of headlamp are controlled with acoustic information according to the ambient brightness variation in headlamp use scope
From open-shut control system.
The present invention is achieved through the following technical solutions: a kind of headlamp high resistant filtering type is main from open-shut control system
Will be by diode rectifier U, sound transducer MIC, triode VT2, triode VT3, triode VT4, one end and triode VT2
Base stage be connected, the photo resistance RG that the other end is connected with the emitter of triode VT2, anode and the base of triode VT2
The polar capacitor C4 that pole is connected, cathode is connected with the emitter of triode VT2, one end are connected with the base stage of triode VT3
It connects, the resistance pole R6, P that the other end is connected with the base stage of triode VT4 is connected with the collector of triode VT3, the pole N and three
The diode D2 that the emitter of pole pipe VT2 is grounded after being connected, anode is connected with the base stage of triode VT4, cathode and two poles
The polar capacitor C5 that the pole N of pipe D2 is connected, one end is connected with the collector of triode VT4, the N of the other end and diode D2
The resistance R7 that pole is connected, the switch S being connected in parallel between the emitter and collector of triode VT2, anode and diode rectification
The A input terminal of device U is connected, input terminal and and the city of control system is collectively formed in the B input terminal of cathode and diode rectifier U
Be electrically connected the polar capacitor C9 connect, the resistance R10 being connected in parallel between the cathode and anode of polar capacitor C9, and one end is whole with diode
Stream device U cathode output end be connected, the other end ground connection resistance R12, respectively with the cathode output end of diode rectifier U and
The thyristor switching circuit of voltage regulation that the emitter of triode VT4 and the pole N of diode D2 are connected, respectively with sound transducer
The rectification amplifying circuit that the A output end of MIC is connected with the base stage of the base stage of triode VT2 and triode VT4, and concatenation
High resistant filter circuit between the B output end and rectification amplifying circuit of sound transducer MIC forms；The triode VT2's
Collector is also connected with the base stage of triode VT3；The base stage of the triode VT4 is connected with the emitter of triode VT3；
The rectification amplifying circuit is also connected with thyristor switching circuit of voltage regulation.
Further, high resistant filtered electrical routing amplifier P, the triode VT6, anode after resistance R16 with triode
The polar capacitor pole C11, P that the base stage of VT6 is connected, cathode is connected with the B output end of sound transducer MIC is through resistance R17
It is connected afterwards with the anode of polar capacitor C11, the diode D6 that the pole N is connected with the collector of triode VT6, one end and polarity
The resistance R15 that the anode of capacitor C11 is connected, the other end is connected with the anode of amplifier P, the anode of anode and amplifier P
It is connected, the polar capacitor C12 that cathode is sequentially connected after resistance R18 and adjustable resistance R19 with the output end of amplifier P,
Anode be connected with the output end of amplifier P, the polar capacitor C13, P that cathode is connected after inductance L with the cathode of amplifier P
Pole is sequentially connected after resistance R22 and resistance R21 with the cathode of polar capacitor C13, the pole N is connected with the cathode of amplifier P
The diode D7 being grounded afterwards, and anode is connected after resistance R20 with the output end of amplifier P, the polarity electricity of cathode ground connection
Hold C14 composition；The emitter of the triode VT6 is connected with the anode of amplifier P；The output end conduct of the amplifier P
The output end of high resistant filter circuit.
The thyristor switching circuit of voltage regulation is by triode VT5, the collector of the unidirectional thyristor pole VS, P and triode VT5
It is connected, the diode D5 that the pole N is connected after adjustable resistance R13 with the control terminal of unidirectional thyristor VS, positive and unidirectional crystalline substance
The polar capacitor C10 that the control terminal of brake tube VS is connected, cathode is connected after relay K with the cathode of unidirectional thyristor VS,
The resistance R14 that one end is connected with the pole N of diode D5, the other end is connected with the cathode of polar capacitor C10, anode and three poles
The pole polar capacitor C8, P that the emitter of pipe VT5 is connected, cathode is connected after resistance R11 with the anode of unidirectional thyristor VS
It is connected after resistance R9 with the cathode of polar capacitor C8, two poles that the pole N is connected after resistance R8 with the base stage of triode VT5
Pipe D4, the pole polar capacitor C7, P that cathode is connected with the emitter of triode VT5, anode is connected with the pole N of diode D4
It is connected with the pole N of diode D4, the diode D3 that the pole N is connected with the base stage of triode VT5, and anode and diode D3
The pole P be connected, polar capacitor C6 that cathode is grounded after being connected with the pole N of diode D3 composition；The base of the triode VT5
Pole is connected with the emitter of triode VT4；The anode of the unidirectional thyristor VS and the cathode output end of diode rectifier U
It is connected；The cathode of the polar capacitor C10 is also connected with the pole N of diode D2；The normally opened contact K-1 of the relay K
Wherein one end be connected with the cathode of polar capacitor C9, control is collectively formed in the B input terminal of the other end and diode rectifier U
The output end of system.
The rectification amplifying circuit by triode VT1, cathode is connected after resistance R4 with the collector of triode VT1,
The polar capacitor C2 that anode is connected with the anode of polar capacitor C6, anode are connected after resistance R1 with the anode of polar capacitor C2
It connects, the polar capacitor pole C1, P that cathode is connected with the base stage of triode VT1 is connected after resistance R2 with the base stage of triode VT1
It connects, the diode D1 that the pole N is connected after inductance L with the base stage of triode VT2, P of the anode after resistance R5 with diode D1
The transmitting of pole is connected, cathode is connected with the emitter of triode VT1 polar capacitor C3 and one end and triode VT1
The resistance R3 composition that pole is connected, the other end is connected with the output end of amplifier P；The anode and sound of the polar capacitor C1
The A output end of sensor MIC is connected；The emitter of the triode VT1 is also connected with the base stage of triode VT4.
To ensure practical effect of the invention, the sound transducer MIC is the 456485 type sound detections of RB4-6
The sound transducer of module composition.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
(1) present invention can by headlamp use scope ambient brightness variation and acoustic information realize headlamp
From opening and closing, and the sound transducer MIC voltage signal exported can be filtered and be amplified, keep voltage signal more stable, from
And ensure control effect of the invention, it can effectively solve that headlamp is opened by mistake the problem of opening, and greatly saved electric power
Resource.
(2) the electromagnetic interference frequency component in the voltage signal that the present invention can export sound transducer MIC is decayed
It eliminates, it is more stable, more acurrate to make voltage signal, to improve the effect of open and close control of the present invention to illumination DHL.
Detailed description of the invention
Fig. 1 is integrated circuit structural schematic diagram of the invention.
Fig. 2 is the electrical block diagram of high resistant filter circuit of the invention.
Specific embodiment
The present invention is described in further detail below with reference to embodiment and its attached drawing, but embodiments of the present invention are not
It is limited to this.
As shown in Figure 1, the present invention is mainly by diode rectifier U, sound transducer MIC, triode VT2, triode
VT3, triode VT4, resistance R6, resistance R7, resistance R10, resistance R12, polar capacitor C4, polar capacitor C5, polar capacitor C9,
Diode D2, high resistant filter circuit, photo resistance RG, inductance L, switch S, thyristor switching circuit of voltage regulation, and rectification amplification
Circuit composition.
When connection, one end of photo resistance RG is connected with the base stage of triode VT2, the hair of the other end and triode VT2
Emitter-base bandgap grading is connected.The anode of polar capacitor C4 is connected with the base stage of triode VT2, the emitter phase of cathode and triode VT2
Connection.One end of resistance R6 is connected with the base stage of triode VT4, and the other end is connected with the base stage of triode VT4.Diode
The pole P of D2 is connected with the collector of triode VT3, and the pole N is grounded after being connected with the emitter of triode VT2.
Wherein, the anode of polar capacitor C5 is connected with the base stage of triode VT4, and cathode is extremely connected with the N of diode D2
It connects.One end of resistance R7 is connected with the collector of triode VT4, and the other end is connected with the pole N of diode D2.Switch S is simultaneously
It is connected between the emitter and collector of triode VT2.The A input terminal phase of the anode and diode rectifier U of polar capacitor C9
Connection, cathode are collectively formed the input terminal of control system with the B input terminal of diode rectifier U and are connected with alternating current.
Meanwhile resistance R10 is connected in parallel between the cathode and anode of polar capacitor C9.One end of resistance R12 and diode are whole
The cathode output end of stream device U is connected, other end ground connection.Thyristor switching circuit of voltage regulation respectively with diode rectifier U just
Pole output end is connected with the pole N of the emitter of triode VT4 and diode D2.Rectify amplifying circuit respectively with sound sensor
The A output end of device MIC is connected with the base stage of the base stage of triode VT2 and triode VT4.High resistant filter circuit is serially connected in sound
Between the B output end and rectification amplifying circuit of sound sensor MIC.
The collector of the triode VT2 is also connected with the base stage of triode VT3；The base stage of the triode VT4 with
The emitter of triode VT3 is connected；The rectification amplifying circuit is also connected with thyristor switching circuit of voltage regulation.
When implementation, triode VT2, triode VT3, triode VT4, photo resistance RG, resistance R6, resistance R7, polarity electricity
Hold C4, polar capacitor C5, diode D2 and switch S and formed photosensitive control circuit, which can be according to headlamp
The variation of ambient brightness in use scope controls the open and close of headlamp.When there is light to be irradiated on photo resistance RG
When, the resistance value of photo resistance RG can reduce, and the voltage in the base stage of triode VT2 can then be pulled low and by triode VT3's
Voltage in base stage rises, and is clipped to triode VT4 also, and photosensitive control circuit at this time is off state；When dull thread shines
When being mapped on photo resistance RG, the resistance value of photo resistance RG can become larger, and the voltage at the both ends polar capacitor C4 increases, polar capacitor C4
It discharges after saturation triode VT2, the voltage in the base stage of triode VT2 then will increase and be switched on, the base stage of triode VT3
On voltage reduce, be switched on triode VT4, photosensitive control circuit at this time is on state.Exist if necessary to headlamp
When being lit when ambient brightness is bright enough, then switch S can be closed, which can then be in long-term on state.
For practical effect of the invention, the photo resistance RG is the photo resistance of LXD7506；Triode
VT2 and triode VT3 is NPN type triode, and triode VT4 is 3DG6 triode；The resistance value of resistance R6 is 100k Ω, resistance R7
Resistance value be 10k Ω；The capacitance of polar capacitor C4 is 10 μ F/16V, and the capacitance of polar capacitor C5 is 100 μ F/16V；Diode D2
For 1N4008 diode.
Meanwhile diode rectifier U, polar capacitor C9, resistance R10 and resistance R12 then form full-bridge rectification filter circuit,
In alternating current input, i.e. alternating voltage is converted to DC voltage after diode rectifier U rectifies the alternating voltage of 220V,
The filter circuit that the DC voltage is then formed through polar capacitor C9 and resistance R10 obtains 12V stable DC after being filtered
Pressure, the 12V DC voltage are the operating voltage of control system.Its diode rectifier U be 4 1N4007 diode D-shapeds at
Full-bridge diode rectifier, polar capacitor C9 are 0.1 μ F/50V filter capacitor；The resistance value of resistance R10 is 51k Ω, resistance R12's
Resistance value is 200k Ω.
Further, the thyristor switching circuit of voltage regulation is by triode VT5, unidirectional thyristor VS, resistance R8, resistance
R9, resistance R11, adjustable resistance R13, resistance R14, polar capacitor C7, polar capacitor C8, polar capacitor C10, diode D3, two
Pole pipe D4, diode D5 and relay K composition.
When connection, the pole P of diode D5 is connected with the collector of triode VT5, the pole N after adjustable resistance R13 with list
It is connected to the control terminal of thyristor VS.The anode of polar capacitor C10 is connected with the control terminal of unidirectional thyristor VS, cathode warp
It is connected after relay K with the cathode of unidirectional thyristor VS.One end of resistance R14 is connected with the pole N of diode D5, the other end
It is connected with the cathode of polar capacitor C10.The anode of polar capacitor C8 is connected with the emitter of triode VT5, and cathode is through electricity
It is connected after resistance R11 with the anode of unidirectional thyristor VS.
Meanwhile the pole P of diode D4 is connected after resistance R9 with the cathode of polar capacitor C8, the pole N after resistance R8 with
The base stage of triode VT5 is connected.The cathode of polar capacitor C7 is connected with the emitter of triode VT5, anode and diode
The pole N of D4 is connected.The pole P of diode D3 is connected with the pole N of diode D4, and the pole N is connected with the base stage of triode VT5.
The anode of polar capacitor C6 is connected with the pole P of diode D3, and cathode is grounded after being connected with the pole N of diode D3.
The base stage of the triode VT5 is connected with the emitter of triode VT4；The anode of the unidirectional thyristor VS with
The cathode output end of diode rectifier U is connected；The cathode of the polar capacitor C10 is also connected with the pole N of diode D2；
Wherein one end of the normally opened contact K-1 of the relay K is connected with the cathode of polar capacitor C9, the other end and diode rectification
The B input terminal of device U is collectively formed the output end of control system and is connected with headlamp HL.The circuit can carry out input voltage
After adjusting export 6.8V DC voltage, and can photosensitive control circuit export electric current when make headlamp HL where circuit shape
At circuit, headlamp HL is made to obtain electric be lit.
Further, the rectification amplifying circuit is by triode VT1, resistance R1, resistance R2, resistance R3, resistance R4, electricity
Hinder R5, polar capacitor C1, polar capacitor C2, polar capacitor C3 and diode D1 composition.
When connection, the cathode of polar capacitor C2 is connected after resistance R4 with the collector of triode VT1, anode and polarity
The anode of capacitor C6 is connected.Polar capacitor C1 anode be connected after resistance R1 with the anode of polar capacitor C2, cathode with
The base stage of triode VT1 is connected.The pole P of diode D1 is connected after resistance R2 with the base stage of triode VT1, and the pole N is through electricity
It is connected after sense L with the base stage of triode VT2.
Meanwhile the anode of polar capacitor C3 is connected after resistance R5 with the pole P of diode D1, cathode and triode VT1
Emitter be connected.One end of resistance R3 is connected with the emitter of triode VT1, the output end of the other end and amplifier P
It is connected.The anode of the polar capacitor C1 is connected with the A output end of sound transducer MIC；The transmitting of the triode VT1
Pole is also connected with the base stage of triode VT4.The circuit can to sound transducer MIC acquire to headlamp HL use environment
Interior acoustic information is handled, and the voltage signal for transmitting sound transducer MIC is converted to current signal, and can be to electric current
Signal transmits after being adjusted, i.e., the circuit can make current signal more stable.
Electricity for practical effect of the invention, in the rectification amplifying circuit and thyristor switching circuit of voltage regulation
Subcomponent then preferentially uses the electronic component of following model:
The triode VT5 of the thyristor switching circuit of voltage regulation is 3AX31 triode, and unidirectional thyristor VS is BT26-
The resistance value of 600B unidirectional thyristor, resistance R8 and resistance R9 are 100k Ω, and the resistance value of resistance R11 is 47k Ω, adjustable resistance
The resistance value adjustable range of R13 is 10~200k Ω, and the resistance value of resistance R14 is 82k Ω, and the capacitance of polar capacitor C7 is 10 μ F/
The capacitance of 50V, polar capacitor C8 are 8 μ F/25V, and the capacitance of polar capacitor C10 is 4.7 μ F/50V, and diode D3 is 1N4,011 bis-
Pole pipe, diode D4 and diode D5 are 1N5401 diode, and relay K is JZC22F6 relay.
The triode VT1 of the rectification amplifying circuit is 3DG12 triode, and the resistance value of resistance R1 is 12k Ω, resistance R2's
The resistance value of resistance value 2M, resistance R3 and resistance R4 are 100k Ω, and the resistance value of resistance R5 is 39k Ω, and inductance L is 100 μ P/20V's
The capacitance of core inductance, polar capacitor C1 and polar capacitor C2 are 1 μ F/50V, and the capacitance of polar capacitor C3 is 220 μ F/16V,
Diode D1 is 1N4013 diode.
As shown in Fig. 2, the high resistant filtered electrical routing amplifier P, triode VT6, resistance R15, resistance R16, resistance
R17, resistance R18, adjustable resistance R19, resistance R20, resistance R21, resistance R22, polar capacitor C11, polar capacitor C12, polarity
Capacitor C13, polar capacitor C14, diode D6, diode D7 and inductance L composition.
When connection, the anode of polar capacitor C11 is connected after resistance R16 with the base stage of triode VT6, cathode and sound
The B output end of sensor MIC is connected.The pole P of diode D6 is connected after resistance R17 with the anode of polar capacitor C11, N
Pole is connected with the collector of triode VT6.One end of resistance R15 is connected with the anode of polar capacitor C11, the other end with put
The anode of big device P is connected.Polar capacitor C12 anode be connected with the anode of amplifier P, cathode sequentially through resistance R18 with
It is connected after adjustable resistance R19 with the output end of amplifier P.
Meanwhile polar capacitor C13 anode be connected with the output end of amplifier P, cathode after inductance L with amplifier P
Cathode be connected.The pole P of diode D7 is sequentially connected after resistance R22 and resistance R21 with the cathode of polar capacitor C13, N
Pole is grounded after being connected with the cathode of amplifier P.Polar capacitor C14 anode after resistance R20 with the output end phase of amplifier P
Connection, cathode ground connection.The emitter of the triode VT6 is connected with the anode of amplifier P；The output end of the amplifier P
Output end as high resistant filter circuit.
When implementation, in order to ensure practical effect of the invention, the amplifier P then preferentially uses OP364 type
Operational amplifier, and triode VT6 is then 3DG06 triode, the resistance value of resistance R15 and resistance R16 are 1000k Ω, resistance
The resistance value of R17 is 100k Ω, the resistance of adjustable resistance R19 for the resistance value of 200k Ω, resistance R18 and resistance R20 and resistance R21
It is 100~400k Ω that value, which adjusts range, and the resistance value of resistance R22 is 10k Ω；The capacitance of polar capacitor C11 is 0.22 μ F/50V simultaneously,
The capacitance of polar capacitor C12 and polar capacitor C13 are that the capacitance of 47 μ F/25V, polar capacitor C14 is the magnetic sheet of 100 μ F/16V
Capacitor；Diode D6 and diode D7 is 1N4002 diode；Inductance L is the core inductance of 100 μ P/50V.
When work, the present invention obtains after full-bridge rectification filter circuit rectifying and wave-filtering using 220V mains voltage
The 12V DC voltage arrived.220V voltage provides operating voltage to headlamp HL, and 12V DC voltage is through thyristor stabilized switch electricity
After the diode D4 on road, resistance R11 and resistance R9 are divided, pass through the filter that polar capacitor C6 and diode D3 and resistance R8 is formed
Wave voltage-stablizer is filtered and DC supply that 6.8V is obtained after pressure stabilizing.Meanwhile rectifying the resistance R1 harmony of amplifying circuit
Sound sensor MIC constitutes voice input circuit, and sound transducer MIC is then preferentially examined using the 456485 type sound of RB4-6
The sound transducer of module composition is surveyed, sound transducer MIC output is voltage signal, which passes through polar capacitor
C1 is coupled, while after rejector circuit carries out decaying elimination to the electromagnetic interference frequency component in voltage signal, should
Voltage signal is amplified by the amplifying circuit that triode VT1 and resistance R2 and resistance R3 is formed.Amplified voltage letter
After number rectification circuit formed by polar capacitor C3 and diode D1 and resistance R5, voltage signal is converted into electric current.
The electric current is transferred to photosensitive control circuit after flowing through inductance L.
Wherein, when voltage signal is transferred to rejector circuit, the polar capacitor C11 of the circuit is by the height in voltage signal
Frequency interference voltage signal is decayed, electricity of the impedor that resistance R15 and resistance R16 and resistance R17 are formed to voltage signal
Magnetic wave interference voltage is eliminated, and keeps the level of voltage signal stronger, and diode D6 drives high level and is switched on, triode
Level on the collector of VT6 enhances conducting, and triode VT6 output voltage signal is given by amplifier P, inductance L, resistance R21, electricity
The signal intensifier circuit that R22 and diode D7 is formed is hindered, after the amplifier P of the signal intensifier circuit amplifies voltage signal
It is transferred to and puts after being eliminated by the degaussing circuit that inductance L and polar capacitor C13 is formed to the electromagnetic component in voltage signal
Big circuit effectively raises the present invention and controls the open and close of illumination DHL to improve the accuracy of voltage signal
Effect.
When there is light to be irradiated on photo resistance RG, the resistance value of photo resistance RG can reduce, in the base stage of triode VT2
Voltage can then be pulled low and by voltage in the base stage of triode VT3 rises, and is clipped to triode VT4 also, at this time
Photosensitive control circuit is off state, and electric current is not transmitted, i.e. back circuit no power, and headlamp HL is not lit；Work as nothing
When light is irradiated on photo resistance RG, the resistance value of photo resistance RG can become larger, and the voltage at the both ends polar capacitor C4 increases, polarity
It discharges after capacitor C4 saturation triode VT2, the voltage in the base stage of triode VT2 then will increase and be switched on, triode VT3
Base stage on voltage reduce, be switched on triode VT4, photosensitive control circuit at this time is on state.Make electric current in this way
Signal can be transferred to triode VT5 by triode VT4 and carry out secondary amplification, and amplified current signal is transferred to two poles
The control terminal that the electric current is transferred to unidirectional thyristor VS after adjustable resistance R13 is connected in pipe D5, diode D5, brilliant lock after triggering
Pipe conducting, relay K obtain electric, and the normally opened contact K-1 of relay K closure, the road where headlamp HL just constitutes closed circuit,
Headlamp HL obtains electric, is lit.It, then can be by switch S when being lit if necessary to headlamp when ambient brightness is bright enough
Closure, the circuit can then be in long-term on state.
The present invention not only realizes the open and close of sound and photocontrol headlamp HL, while can also be adjustable by adjusting
The resistance value size of resistance R13, to realize the adjusting to size of current, to adjust the Trigger Angle of unidirectional thyristor VS to control photograph
The voltage value size of the voltage input end of bright lamp HL, so that the brightness for being able to achieve control bright lamp HL is controlled.That is adjustable resistance
The resistance value of R13 tunes up, and electric current becomes smaller, and the Trigger Angle of unidirectional thyristor VS becomes larger, and the angle of flow becomes smaller, so that voltage effective value subtracts
Small, headlamp HL is dimmed.Conversely, the resistance value of adjustable resistance R13 is turned down, electric current becomes larger, and the Trigger Angle of unidirectional thyristor VS becomes smaller,
The angle of flow becomes larger, so that voltage effective value increases, therefore headlamp HL brightens.To which the present invention can effectively be improved to headlamp
The control effect of HL can effectively solve that headlamp is opened by mistake the problem of opening, and greatly save electric power resource.
Headlamp HL in the present invention preferentially selects osram lamp, and main cause is that sonic-opticalcon trolled switch is opened by electronic loop
Dynamic, the lamp starting current with rectifier is larger, be easy to cause the breakdown of electronic component, damages circuit.Sonic-opticalcon trolled switch starting frequency
Numerous service life that can shorten lamp to a certain extent for energy conservation waits.Halogen lamp can not be reached before closing simultaneously
Brightness.So general lamps and lanterns are not suitable for use in sonic-opticalcon trolled switch circuit.
According to above-described embodiment, the present invention can be realized well.
Claims (5)
1. a kind of headlamp is with high resistant filtering type from open-shut control system, which is characterized in that mainly by diode rectifier U, sound
Sound sensor MIC, triode VT2, triode VT3, triode VT4, one end is connected with the base stage of triode VT2, the other end
The photo resistance RG being connected with the emitter of triode VT2, anode is connected with the base stage of triode VT2, cathode and three poles
The polar capacitor C4 that the emitter of pipe VT2 is connected, one end is connected with the base stage of triode VT3, the other end and triode VT4
The resistance pole R6, P that is connected of base stage be connected with the collector of triode VT3, the pole N is connected with the emitter of triode VT2
The diode D2 being grounded after connecing, anode be connected with the base stage of triode VT4, the pole that cathode is connected with the pole N of diode D2
Property capacitor C5, the resistance R7 that one end is connected with the collector of triode VT4, the other end is connected with the pole N of diode D2, and
The switch S being associated between the emitter and collector of triode VT2, anode be connected with the A input terminal of diode rectifier U,
The polar capacitor that cathode is collectively formed the input terminal of control system and is connected with alternating current with the B input terminal of diode rectifier U
C9, the resistance R10 being connected in parallel between the cathode and anode of polar capacitor C9, the cathode output end of one end and diode rectifier U
Be connected, the other end ground connection resistance R12, respectively with the emitter of the cathode output end of diode rectifier U and triode VT4
And the thyristor switching circuit of voltage regulation that the pole N of diode D2 is connected, respectively with the A output end of sound transducer MIC and three
The rectification amplifying circuit that the base stage of pole pipe VT2 and the base stage of triode VT4 are connected, and it is serially connected in sound transducer MIC
B output end and rectification amplifying circuit between high resistant filter circuit form；The collector of the triode VT2 also with triode
The base stage of VT3 is connected；The base stage of the triode VT4 is connected with the emitter of triode VT3；The rectification amplifying circuit
Also it is connected with thyristor switching circuit of voltage regulation.
2. a kind of headlamp according to claim 1 is with high resistant filtering type from open-shut control system, which is characterized in that described
High resistant filtered electrical routing amplifier P, triode VT6, anode be connected after resistance R16 with the base stage of triode VT6, cathode with
The polar capacitor pole C11, P that the B output end of sound transducer MIC is connected after resistance R17 with the positive phase of polar capacitor C11
The diode D6 that connection, the pole N are connected with the collector of triode VT6, one end is connected, separately with the anode of polar capacitor C11
The resistance R15 that one end is connected with the anode of amplifier P, anode is connected with the anode of amplifier P, cathode is sequentially through resistance
The polar capacitor C12 being connected after R18 and adjustable resistance R19 with the output end of amplifier P, the output end of anode and amplifier P
It is connected, the pole polar capacitor C13, P that cathode is connected after inductance L with the cathode of amplifier P is sequentially through resistance R22 and resistance
It is connected after R21 with the cathode of polar capacitor C13, the diode D7 that the pole N is grounded after being connected with the cathode of amplifier P, and
Anode is connected after resistance R20 with the output end of amplifier P, the polar capacitor C14 of cathode ground connection is formed；The triode
The emitter of VT6 is connected with the anode of amplifier P；Output end of the output end of the amplifier P as high resistant filter circuit.
3. a kind of headlamp according to claim 2 is with high resistant filtering type from open-shut control system, which is characterized in that described
Thyristor switching circuit of voltage regulation is by triode VT5, and the unidirectional thyristor pole VS, P is connected with the collector of triode VT5, the pole N passes through
The diode D5 being connected after adjustable resistance R13 with the control terminal of unidirectional thyristor VS, the control of anode and unidirectional thyristor VS
End be connected, the polar capacitor C10 that cathode is connected after relay K with the cathode of unidirectional thyristor VS, one end and diode
The resistance R14 that the pole N of D5 is connected, the other end is connected with the cathode of polar capacitor C10, the transmitting of anode and triode VT5
The polar capacitor pole C8, P that pole is connected, cathode is connected after resistance R11 with the anode of unidirectional thyristor VS is after resistance R9
It is connected with the cathode of polar capacitor C8, the diode D4 that the pole N is connected after resistance R8 with the base stage of triode VT5, cathode
It is connected with the emitter of triode VT5, the polar capacitor pole C7, P and the diode D4 that anode is connected with the pole N of diode D4
The pole N be connected, the diode D3 that the pole N is connected with the base stage of triode VT5, and anode be extremely connected with the P of diode D3
It connects, the polar capacitor C6 composition that cathode is grounded after being connected with the pole N of diode D3；The base stage of the triode VT5 and three poles
The emitter of pipe VT4 is connected；The anode of the unidirectional thyristor VS is connected with the cathode output end of diode rectifier U；
The cathode of the polar capacitor C10 is also connected with the pole N of diode D2；Wherein the one of the normally opened contact K-1 of the relay K
End is connected with the cathode of polar capacitor C9, the defeated of control system is collectively formed in the B input terminal of the other end and diode rectifier U
Outlet.
4. a kind of headlamp according to claim 3 is with high resistant filtering type from open-shut control system, which is characterized in that described
Amplifying circuit is rectified by triode VT1, cathode is connected after resistance R4 with the collector of triode VT1, anode and polarity are electric
Hold the polar capacitor C2 that is connected of anode of C6, anode is connected after resistance R1 with the anode of polar capacitor C2, cathode and three
The polar capacitor pole C1, P that the base stage of pole pipe VT1 is connected is connected after resistance R2 with the base stage of triode VT1, the pole N is through electricity
The diode D1 being connected after sense L with the base stage of triode VT2, anode are connected with the pole P of diode D1 after resistance R5, bear
The polar capacitor C3 and one end that pole is connected with the emitter of triode VT1 are connected, separately with the emitter of triode VT1
The resistance R3 composition that one end is connected with the output end of amplifier P；The anode of the polar capacitor C1 is with sound transducer MIC's
A output end is connected；The emitter of the triode VT1 is also connected with the base stage of triode VT4.
5. a kind of headlamp according to claim 4 is with high resistant filtering type from open-shut control system, which is characterized in that described
The sound transducer that the 456485 type sound detection modules that sound transducer MIC is RB4-6 form.
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Effective date of registration: 20191018 Address after: 315000 No. 150 Xinhui Road, Ningbo High-tech Zone, Ningbo City, Zhejiang Province Patentee after: NINGBO SUNPU OPTO CO., LTD. Address before: 355 200 No. 22 Pengjialan, Zhuxia Village, Tai Lao Shan Town, Fuding City, Ningde City, Fujian Province Patentee before: Lin Ze Feng |
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