CN107683001A - A kind of anti-flicker desk lamp control system based on surge protection - Google Patents

A kind of anti-flicker desk lamp control system based on surge protection Download PDF

Info

Publication number
CN107683001A
CN107683001A CN201711113058.7A CN201711113058A CN107683001A CN 107683001 A CN107683001 A CN 107683001A CN 201711113058 A CN201711113058 A CN 201711113058A CN 107683001 A CN107683001 A CN 107683001A
Authority
CN
China
Prior art keywords
electric capacity
resistance
pole
poles
diode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711113058.7A
Other languages
Chinese (zh)
Inventor
李小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Eapus Technology Co Ltd
Original Assignee
Chengdu Eapus Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Eapus Technology Co Ltd filed Critical Chengdu Eapus Technology Co Ltd
Priority to CN201711113058.7A priority Critical patent/CN107683001A/en
Publication of CN107683001A publication Critical patent/CN107683001A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/105Controlling the light source in response to determined parameters
    • H05B47/11Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention discloses a kind of anti-flicker desk lamp control system based on surge protection, it is characterised in that mainly by when the composition such as base chip U, bidirectional thyristor VS, P poles ground connection, the diode D6 that is connected after resistance R14 with bidirectional thyristor VS second plate of N poles.The present invention has prompting function, when people are read using desk lamp, a period of time backstage lantern festival automatic distinguishing, and so as to remind people to need to rest, protect eyes;Meanwhile the present invention can send faint light at night, so as to prompt the position of people's desk lamp, be convenient for people to use desk lamp.The present invention has surge protection function, and it can suppress to surge voltage, so as to protect the present invention not damaged by surge voltage.

Description

A kind of anti-flicker desk lamp control system based on surge protection
Technical field
The present invention relates to a kind of control system, in particular to a kind of anti-flicker desk lamp control system based on surge protection.
Background technology
Desk lamp has turned into indispensable illuminations in people's life at present, and desk lamp is generally controlled by control system, But traditional control system work and unstable, easily cause desk lamp to flash.
The content of the invention
It is an object of the invention to overcome current desk lamp not possess the defects of prompting function, there is provided one kind is protected based on surge The anti-flicker desk lamp control system of shield.
The purpose of the present invention is achieved through the following technical solutions:A kind of anti-flicker desk lamp control system based on surge protection System, mainly by when base chip U, bidirectional thyristor VS, electric voltage frequency process circuit, P poles ground connection, N poles after resistance R14 with it is two-way The diode D6 that IGCT VS second plate is connected, the control of base chip U OUT pins and bidirectional thyristor VS when being serially connected in Resistance R13 between pole processed, resistance R12, P pole when being serially connected between base chip U TRI pins and RE pins with when base chip U RE pins are connected, N poles after light emitting diode VL with when base chip U the diode D5 that is connected of OUT pins, concatenation When base chip U VCC pins and RE pins between resistance R11, base chip U TRI pins and diode D6 when being serially connected in N poles between switch SB, positive pole with when base chip U CONT pins be connected, negative pole is connected with diode D6 N poles Electric capacity C6, negative pole with when base chip U THRE pins be connected, positive pole after potentiometer R8 with when base chip U RE pin phases Electric capacity C5, the P pole of connection is connected after resistance R9 with electric capacity C6 negative pole, two poles that N poles are connected with electric capacity C5 negative pole Pipe D4, respectively with when the light sensation circuit that is connected of base chip U RE pins and electric capacity C6 negative pole, one end is connected with light sensation circuit Connect, the other end with when base chip U the resistance R10 that is connected of THRE pins, the surge voltage being connected with light sensation circuit suppresses Circuit, and the illuminating lamp EL compositions being serially connected between electric voltage frequency process circuit and bidirectional thyristor the VS first anode;Institute Base chip U THRE pins are connected with its DIS pin when stating;The control terminal of the potentiometer R8 with when base chip U RE manage Pin is connected;The electric voltage frequency process circuit is also connected with light sensation circuit.
The electric voltage frequency process circuit includes triode VT101, and negative pole is connected with light sensation circuit, positive pole is through resistance Current collection of electric capacity C101, the N pole being connected after R102 with triode VT101 base stage after resistance R103 with triode VT101 Voltage-regulator diode D101, the N pole that pole is connected, P poles are connected with electric capacity C101 positive pole and voltage-regulator diode D101 P poles phase Connection, the voltage-regulator diode D102 that is connected with electric capacity C101 negative pole of P poles, negative pole is grounded, positive pole after electric capacity C102 with three The electric capacity C103 that pole pipe VT101 base stage is connected, it is serially connected between voltage-regulator diode D102 P poles and electric capacity C103 negative pole Resistance R101, and P poles are connected after resistance R104 with triode VT101 emitter stage, N poles after illuminating lamp EL with it is double The voltage-regulator diode D103 being connected to the IGCT VS first anode.
The surge voltage-suppressing circuit is by electric capacity C1, resistance R1, the P pole being in parallel with electric capacity C1 and electric capacity C1 negative pole It is connected, the diode D1 that N poles are connected with light sensation circuit, positive pole is connected after resistance R4 with diode D1 N poles, negative pole The electric capacity C3 being connected with light sensation circuit, positive pole is connected with diode D1 N poles, negative pole is connected with electric capacity C3 positive pole The diode D2 that electric capacity C2, P pole is connected with diode D1 N poles, N poles are connected after resistance R5 with electric capacity C2 positive pole, And the resistance R2 groups that one end is connected with electric capacity C1 negative pole, the other end is connected after resistance R3 with electric capacity C3 negative pole Into;The positive pole of the electric capacity C1 connects+6V voltages, and the negative pole of the electric capacity C3 connects -6V voltages.
The light sensation circuit is serially connected in phototriode VT1 colelctor electrode and three by phototriode VT1, triode VT2 Resistance R6, N pole between pole pipe VT2 base stage is connected with triode VT2 colelctor electrode, P poles and electric capacity C101 negative pole phase The diode D3 of connection, and positive pole is connected with triode VT2 base stage, negative pole after resistance R7 with phototriode VT1 Emitter stage be connected electric capacity C4 composition;The P poles of the diode D3 are connected with electric capacity C2 positive pole;Photosensitive three pole Pipe VT1 emitter stage is connected with electric capacity C6 negative pole and electric capacity C3 negative pole respectively;The colelctor electrode and light of the triode VT2 Quick triode VT1 colelctor electrode is connected, its emitter stage with when base chip U RE pins be connected;The negative pole of the electric capacity C4 After resistance R10 with when base chip U THRE pins be connected.
Base chip U is NE555 integrated chips when described.
The present invention compared with the prior art, has advantages below and beneficial effect:
(1) present invention has prompting function, when people are read using desk lamp, a period of time backstage lantern festival automatic distinguishing, from And remind people to need to rest, protect eyes;Meanwhile the present invention can send faint light at night, so as to prompter Desk lamp position, be convenient for people to use desk lamp.
(2) present invention has surge protection function, and it can suppress to surge voltage, so as to protect it is of the invention not by Surge voltage is damaged.
(3) electric voltage frequency process circuit of the invention can be handled the frequency of voltage, make electric voltage frequency more stable, Prevent desk lamp from scintillation occur.
Brief description of the drawings
Fig. 1 is the overall structure figure of the present invention.
Fig. 2 is the structure chart of the electric voltage frequency process circuit of the present invention.
Embodiment
The present invention is described in further detail with reference to embodiment, but embodiments of the present invention are not limited to This.
Embodiment
As shown in figure 1, the present invention mainly by when base chip U, bidirectional thyristor VS, potentiometer R8, resistance R9, resistance R10, Resistance R11, resistance R12, resistance R13, resistance R14, illuminating lamp EL, diode D4, diode D5, diode D6, electric capacity C5, electricity Hold C6, switch SB, illuminating lamp EL light emitting diode VL, light sensation circuit, electric voltage frequency process circuit and surge voltage suppress electricity Road forms.
Wherein, diode D6 P poles ground connection, second plate of the N poles with bidirectional thyristor VS after resistance R14 are connected. When resistance R13 is serially connected between base chip U OUT pins and bidirectional thyristor VS control pole.Base core when resistance R12 is serially connected in Between piece U TRI pins and RE pins.Diode D5 P poles with when base chip U RE pins be connected, N poles are through light-emitting diodes After pipe VL with when base chip U OUT pins be connected.When resistance R11 is serially connected between base chip U VCC pins and RE pins. When switch SB is serially connected between base chip U TRI pins and diode D6 N poles.Electric capacity C6 positive pole with when base chip U CONT pins are connected, and negative pole is connected with diode D6 N poles.Electric capacity C5 negative pole with when base chip U THRE pin phases Connection, positive pole after potentiometer R8 with when base chip U RE pins be connected.Diode D4 P poles after resistance R9 with electric capacity C6 negative pole is connected, and N poles are connected with electric capacity C5 negative pole.Light sensation circuit respectively with when base chip U RE pins and electric capacity C6 negative pole is connected.Surge voltage-suppressing circuit is connected with light sensation circuit.Resistance R10 one end is connected with light sensation circuit Connect, the other end with when base chip U THRE pins be connected.Illuminating lamp EL is serially connected in electric voltage frequency process circuit and two-way brilliant lock Between the pipe VS first anode.Base chip U THRE pins are connected with its DIS pin when described.The control of the potentiometer R8 End processed with when base chip U RE pins be connected.The electric voltage frequency process circuit is also connected with light sensation circuit.
The bidirectional thyristor VS, resistance R13 and resistance R14 collectively constitute an on-off circuit;The on-off circuit can be with According to when the level signal that exports of base chip U come on or off, light so as to realize or extinguish illuminating lamp EL.The two-way brilliant lock Pipe VS model SC441D, resistance R13 resistance are 120 Ω, and resistance R14 resistance is then 5K Ω.
This when base chip U be NE555 integrated chips, diode D4 and diode D5 and diode D6 is 1N4001 types Diode, resistance R12 resistance is 10K Ω, and potentiometer R8 maximum value is 2.2M Ω, and resistance R9 resistance is 1.5M Ω, Resistance R10 and resistance R11 resistance are 1M Ω, and electric capacity C5 capacitance is 100 μ F, and electric capacity C6 capacitance is then 0.1 μ F, the hair Optical diode VL is green light LED.
As shown in Fig. 2 electric voltage frequency process circuit includes triode VT101, negative pole is connected with light sensation circuit, positive pole warp Electric capacity C101, the N pole being connected after resistance R102 with triode VT101 base stage is after resistance R103 with triode VT101's Voltage-regulator diode D101, the N pole that colelctor electrode is connected, P poles are connected with electric capacity C101 positive pole and voltage-regulator diode D101 P The voltage-regulator diode D102 that pole is connected, P poles are connected with electric capacity C101 negative pole, negative pole ground connection, positive pole are after electric capacity C102 The electric capacity C103 being connected with triode VT101 base stage, it is serially connected in voltage-regulator diode D102 P poles and electric capacity C103 negative pole Between resistance R101, and P poles are connected after resistance R104 with triode VT101 emitter stage, N poles are after illuminating lamp EL The voltage-regulator diode D103 being connected with the bidirectional thyristor VS first anode.
Turn-on transistor VT101 after control source is come in, while voltage-regulator diode D101, voltage-regulator diode D102 and steady It is stable that pressure diode D103 then manages the frequency of voltage, so as to prevent desk lamp from scintillation occur.Wherein, triode VT101 Model 2N3565, voltage-regulator diode D101, voltage-regulator diode D102 and voltage-regulator diode D103 model are 1N708, Electric capacity C101 capacitance is that 2.2 μ F, electric capacity C102 and electric capacity C103 capacitance are 0.5 μ F, resistance R103 and resistance R101 The resistance that resistance is 10K Ω, resistance R102 and resistance R104 is 5K Ω.
Light sensation circuit can detect the brightness of environment, and control light emitting diode VL according to the brightness of environment, and it is by light Quick triode VT1, triode VT2, diode D3, resistance R6, resistance R7 and electric capacity C4 compositions.
During connection, resistance R6 is serially connected between phototriode VT1 colelctor electrode and triode VT2 base stage.Diode D3 N poles are connected with triode VT2 colelctor electrode, and P poles are connected with electric capacity C101 negative pole.Electric capacity C4 positive pole and three poles Pipe VT2 base stage is connected, and emitter stage of the negative pole with phototriode VT1 after resistance R7 is connected.The P of the diode D3 Pole is connected with surge voltage-suppressing circuit.The emitter stage of the phototriode VT1 while negative pole and surge with electric capacity C6 Voltage-suppressing circuit is connected.The colelctor electrode of the triode VT2 is connected with phototriode VT1 colelctor electrode, and it is launched Pole with when base chip U RE pins be connected.The negative pole of the electric capacity C4 after resistance R10 with when base chip U THRE pins It is connected.
Phototriode VT1 can adjust its resistance according to the brightness of environment, and it need to be arranged on not illuminated lamp and shine The place arrived, such as the top of illuminating lamp, phototriode VT1 model 3DU5.Triode VT2 model 9013, two Pole pipe D3 is 1N4001 type diodes, and resistance R6 and resistance R7 resistance are 10K Ω, and electric capacity C4 capacitance is 100 μ F.
The surge voltage-suppressing circuit can suppress to surge voltage, so as to protect the present invention not damaged by surge voltage Bad, it is by electric capacity C1, electric capacity C2, electric capacity C3, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, diode D1 and two Pole pipe D2 is formed.
During connection, resistance R1 is in parallel with electric capacity C1.Diode D1 P poles are connected with electric capacity C1 negative pole, N poles and two Pole pipe D3 P poles are connected.Electric capacity C3 positive pole is connected after resistance R4 with diode D1 N poles, negative pole and photosensitive three pole Pipe VT1 emitter stage is connected.Electric capacity C2 positive pole is connected with diode D1 N poles, and negative pole is connected with electric capacity C3 positive pole Connect.Diode D2 P poles are connected with diode D1 N poles, and positive pole of the N poles with electric capacity C2 after resistance R5 is connected.Resistance R2 one end is connected with electric capacity C1 negative pole, and negative pole of the other end with electric capacity C3 after resistance R3 is connected.The electric capacity C1 Positive pole connect+6V voltages.The negative pole of the electric capacity C3 connects -6V voltages.
When there is surge voltage, voltage is directly coupled by electric capacity C1, then carries out partial pressure through resistance R2 and resistance R3, Diode D1 is sent into light sensation circuit after carrying out rectification;Diode D2 plays clamping action, and it can carry out clamper to surge voltage, Prevent overtension and damage other electron component;Electric capacity C2 and electric capacity C3 is shunt capacitance, is strobed.The surge voltage Suppression circuit can be very good surge voltage carrying out clamper, prevents overtension and damages the present invention.
Resistance R1 resistance is that 100K Ω, resistance R2 and resistance R3 resistance are 7.5K Ω, and resistance R4 resistance is 6.8K Ω, resistance R5 resistance are that 56K Ω, diode D1 and diode D2 model are 1N4148, and electric capacity C1 capacitance is 1000PM, electric capacity C2 and electric capacity C3 capacitance are 2 μ F.
At night, phototriode VT1 resistance is very big, and electric current turns on triode VT2, when base chip U obtain its electric OUT Pin exports low level, and light emitting diode VL sends faint green glow, prompted the position of people's desk lamp, allowed one in dark In find desk lamp;Due to when base chip U output low level can not turn on bidirectional thyristor VS, therefore illuminating lamp EL is not by point It is bright.When switch SB closures, when base chip U upset, its OUT pin output high level, at this moment bidirectional thyristor VS is by high electricity Flat conducting, illuminating lamp EL is then lit, and now light emitting diode VL then extinguishes;Due to the dark that desk lamp is sent, and Be not again direct irradiation on phototriode VT1, therefore phototriode VT1 resistance is still very big, illuminating lamp EL work Can be very stable.Base chip U automatic turnings when over time, its OUT pin export low level again, and illuminating lamp EL extinguishes, Light emitting diode VL is lighted again, and so as to remind people to need to rest, it is each that regulation potentiometer R8 can then change illuminating lamp EL The time of work.During the day, phototriode VT1 resistance becomes very little, and now triode VT2 ends, when base chip U not Must be electric, light emitting diode VL does not also work, and now will not be also lit even if by lower switch SB illuminating lamps EL.
As described above, the present invention can be realized well.

Claims (4)

  1. A kind of 1. anti-flicker desk lamp control system based on surge protection, it is characterised in that mainly by when base chip U, two-way crystalline substance Brake tube VS, electric voltage frequency process circuit, P poles ground connection, second plate of the N poles with bidirectional thyristor VS after resistance R14 are connected Diode D6, resistance R13 when being serially connected between base chip U OUT pins and bidirectional thyristor VS control pole, be serially connected in When base chip U TRI pins and RE pins between resistance R12, P pole with when base chip U RE pins be connected, N poles are through hair After optical diode VL with when base chip U the diode D5 that is connected of OUT pins, base chip U VCC pins and RE when being serially connected in Resistance R11 between pin, switch SB when being serially connected between base chip U TRI pins and diode D6 N poles, positive pole with When base chip U CONT pins be connected, the electric capacity C6 that negative pole is connected with diode D6 N poles, negative pole with when base chip U THRE pins are connected, positive pole after potentiometer R8 with when base chip U electric capacity C5, the P pole that is connected of RE pins through resistance R9 Be connected afterwards with electric capacity C6 negative pole, the diode D4 that N poles are connected with electric capacity C5 negative pole, respectively with when base chip U RE The light sensation circuit that pin is connected with electric capacity C6 negative pole, one end is connected with light sensation circuit, the other end and when base chip U The resistance R10 that THRE pins are connected, the surge voltage-suppressing circuit being connected with light sensation circuit, and it is serially connected in electric voltage frequency Illuminating lamp EL compositions between process circuit and bidirectional thyristor the VS first anode;When described base chip U THRE pins with Its DIS pin is connected;The control terminal of the potentiometer R8 with when base chip U RE pins be connected;At the electric voltage frequency Reason circuit is also connected with light sensation circuit;
    The electric voltage frequency process circuit includes triode VT101, and negative pole is connected with light sensation circuit, positive pole is after resistance R102 Colelctor electrode of electric capacity C101, the N pole being connected with triode VT101 base stage with triode VT101 after resistance R103 is connected Connect, voltage-regulator diode D101, the N pole that P poles are connected with electric capacity C101 positive pole is connected with voltage-regulator diode D101 P poles, P The voltage-regulator diode D102 that pole is connected with electric capacity C101 negative pole, negative pole ground connection, positive pole after electric capacity C102 with triode The electric capacity C103 that VT101 base stage is connected, the electricity being serially connected between voltage-regulator diode D102 P poles and electric capacity C103 negative pole Hinder R101, and P poles are connected after resistance R104 with triode VT101 emitter stage, N poles after illuminating lamp EL with two-way crystalline substance The voltage-regulator diode D103 that the brake tube VS first anode is connected.
  2. 2. a kind of anti-flicker desk lamp control system based on surge protection according to claim 1, it is characterised in that described Surge voltage-suppressing circuit by electric capacity C1, resistance R1, the P pole being in parallel with electric capacity C1 is connected with electric capacity C1 negative pole, N poles with The diode D1 that light sensation circuit is connected, positive pole is connected after resistance R4 with diode D1 N poles, negative pole and light sensation circuit phase The electric capacity C3 of connection, positive pole is connected with diode D1 N poles, negative pole is connected with electric capacity C3 positive pole electric capacity C2, P pole with The diode D2 that diode D1 N poles are connected, N poles are connected after resistance R5 with electric capacity C2 positive pole, and one end and electricity The resistance R2 compositions that appearance C1 negative pole is connected, the other end is connected after resistance R3 with electric capacity C3 negative pole;The electric capacity C1 Positive pole connect+6V voltages, the negative pole of the electric capacity C3 connects -6V voltages.
  3. 3. a kind of anti-flicker desk lamp control system based on surge protection according to claim 2, it is characterised in that described Light sensation circuit is serially connected in phototriode VT1 colelctor electrode and triode VT2 base by phototriode VT1, triode VT2 Resistance R6, N pole between pole is connected with triode VT2 colelctor electrode, the diode that P poles are connected with electric capacity C101 negative pole D3, and positive pole is connected with triode VT2 base stage, emitter stage of the negative pole with phototriode VT1 after resistance R7 is connected The electric capacity C4 compositions connect;The P poles of the diode D3 are connected with electric capacity C2 positive pole;The transmitting of the phototriode VT1 Pole is connected with electric capacity C6 negative pole and electric capacity C3 negative pole respectively;The colelctor electrode of the triode VT2 and phototriode VT1 Colelctor electrode be connected, its emitter stage with when base chip U RE pins be connected;The negative pole of the electric capacity C4 is after resistance R10 With when base chip U THRE pins be connected.
  4. 4. a kind of anti-flicker desk lamp control system based on surge protection according to claim 3, it is characterised in that described When base chip U be NE555 integrated chips.
CN201711113058.7A 2017-11-06 2017-11-06 A kind of anti-flicker desk lamp control system based on surge protection Pending CN107683001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711113058.7A CN107683001A (en) 2017-11-06 2017-11-06 A kind of anti-flicker desk lamp control system based on surge protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711113058.7A CN107683001A (en) 2017-11-06 2017-11-06 A kind of anti-flicker desk lamp control system based on surge protection

Publications (1)

Publication Number Publication Date
CN107683001A true CN107683001A (en) 2018-02-09

Family

ID=61145204

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711113058.7A Pending CN107683001A (en) 2017-11-06 2017-11-06 A kind of anti-flicker desk lamp control system based on surge protection

Country Status (1)

Country Link
CN (1) CN107683001A (en)

Similar Documents

Publication Publication Date Title
CN105338685B (en) Multimedia touch control type switch panel
CN102548084B (en) Device and method for controlling light source in gradual brightness change manner
CN204046874U (en) A kind of Novel LED light
CN107734769A (en) A kind of transient voltage protection type intelligent desk lamp control system of electric voltage frequency processing
CN107683001A (en) A kind of anti-flicker desk lamp control system based on surge protection
CN107743327A (en) A kind of high stable desk lamp control system for preventing flicker
CN105338686B (en) High reliable intelligent switching device
CN206611618U (en) A kind of intelligent light-controlled system
CN107645816A (en) A kind of surge protection type intelligent desk lamp control system based on voltage processing circuitry
CN107743326A (en) A kind of control system of frequency stabilization
CN104546287A (en) Automatic shading arc welding mask microscopic group
CN107660030A (en) Desk lamp control system based on electric voltage frequency processing
CN105338687B (en) intelligent switch panel for LED lamp
CN100542366C (en) A kind of lighting device
CN201114889Y (en) Bright-dark shading lamp
CN107660029A (en) A kind of electric voltage frequency stable type desk lamp control system with prompting function
CN205071376U (en) A automatic switch for street lamp
CN214256681U (en) Interference eliminator for dimmable LED lamp
CN202425107U (en) LED (light emitting diode) infrared inductor
CN106851944A (en) A kind of intelligent light-controlled system
CN107592708A (en) A kind of LED power circuits
CN207345997U (en) A kind of Motorcycle headlight photosystem
CN101858551A (en) Intelligent indicator lamp
CN206181485U (en) Flashlight control circuit
CN206181473U (en) High stability street lamp automatic control circuit based on time base NULL

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180209

WD01 Invention patent application deemed withdrawn after publication