CN107660030A - Desk lamp control system based on electric voltage frequency processing - Google Patents
Desk lamp control system based on electric voltage frequency processing Download PDFInfo
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- CN107660030A CN107660030A CN201711078920.5A CN201711078920A CN107660030A CN 107660030 A CN107660030 A CN 107660030A CN 201711078920 A CN201711078920 A CN 201711078920A CN 107660030 A CN107660030 A CN 107660030A
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Classifications
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- 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
-
- 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
- H05B47/16—Controlling the light source by timing means
-
- 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]
-
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of desk lamp control system based on electric voltage frequency processing, it is characterised in that mainly by when the composition such as base chip U2, bidirectional thyristor VS, P poles ground connection, the diode D5 that is connected after resistance R12 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 good voltage stabilizing function, and when input voltage fluctuates, it can be stable with maintenance voltage, so that present invention work is more stable.
Description
Technical field
The present invention relates to a kind of control system, in particular to a kind of desk lamp control system based on electric voltage frequency processing.
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
Worked it is an object of the invention to the control system for overcoming current desk lamp and unstable, easily cause desk lamp to flash
The defects of, there is provided a kind of desk lamp control system based on electric voltage frequency processing.
The purpose of the present invention is achieved through the following technical solutions：The desk lamp control system handled based on electric voltage frequency, mainly
By when base chip U2, bidirectional thyristor VS, electric voltage frequency process circuit, P poles ground connection, N poles after resistance R12 with bidirectional thyristor
The diode D5 that VS second plate is connected, base chip U2 OUT pins and bidirectional thyristor VS control pole when being serially connected in
Between resistance R11, resistance R10, P pole when being serially connected between base chip U2 TRI pins and RE pins with when base chip U2
RE pins be connected, N poles after light emitting diode VL with when base chip U2 the diode D4 that is connected of OUT pins, concatenation
When base chip U2 VCC pins and RE pins between resistance R9, base chip U2 TRI pins and diode D5 when being serially connected in
N poles between switch SB, positive pole with when base chip U2 CONT pins be connected, negative pole is connected with diode D5 N poles
Electric capacity C4, negative pole with when base chip U2 THRE pins be connected, positive pole after potentiometer R6 with when base chip U2 RE manage
Electric capacity C3, the P pole that pin is connected is connected after resistance R7 with electric capacity C4 negative pole, N poles are connected with electric capacity C3 negative pole
Diode D3, respectively with when the light sensation circuit that is connected of base chip U2 RE pins and electric capacity C4 negative pole, one end and light sensation electricity
Road is connected, the other end with when base chip U2 the resistance R8 that is connected of THRE pins, be serially connected in electric voltage frequency process circuit and
Illuminating lamp EL between the bidirectional thyristor VS first anode, and the voltage stabilizing source circuit composition being connected with light sensation circuit；Institute
Base chip U2 THRE pins are connected with its DIS pin when stating；The control terminal of the potentiometer R6 with when base chip U2 RE
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 voltage stabilizing source circuit is by transformer T, and diode rectifier U1, triode VT1, triode VT2, positive pole is through resistance
It is connected after R1 with diode rectifier U1 cathode output end, negative pole is connected with diode rectifier U1 cathode output end
Electric capacity C1, N pole be connected with triode VT1 base stage, the voltage-regulator diode D1 that P poles are connected with electric capacity C1 negative pole, string
The resistance R2 being connected between triode VT2 base stage and emitter stage, and it is serially connected in triode VT2 emitter stage and the pole of voltage stabilizing two
Resistance R3 compositions between pipe D1 P poles；The colelctor electrode of the triode VT2 is connected with triode VT1 colelctor electrode, its base
Pole is connected with triode VT1 emitter stage, emitter stage is then connected with light sensation circuit；The colelctor electrode of the triode VT1 with
Diode rectifier U1 cathode output end is connected, base stage is connected with electric capacity C1 positive pole；The negative pole of the electric capacity C1 with
Light sensation circuit is connected；The input of the diode rectifier U1 Same Name of Ends with transformer T secondary inductance coil respectively
It is connected with non-same polarity；The Same Name of Ends and non-same polarity of the primary side inductance coil of the transformer T are collectively forming power input
End.
The light sensation circuit is serially connected in light sensation triode VT3 colelctor electrode and three by phototriode VT3, triode VT4
Resistance R4, N pole between pole pipe VT4 base stage is connected with triode VT4 colelctor electrode, P poles and electric capacity C101 negative pole phase
The diode D2 of connection, and positive pole is connected with triode VT4 base stage, negative pole after resistance R5 with light sensation triode VT3
Emitter stage be connected electric capacity C2 composition；The P poles of the diode D2 are connected with triode VT2 emitter stage；The light
Quick triode VT3 emitter stage is connected with electric capacity C4 negative pole and voltage-regulator diode D1 P poles respectively；The triode VT4
Colelctor electrode be connected with phototriode VT3 colelctor electrode, its emitter stage with when base chip U2 RE pins be connected；It is described
Electric capacity C2 negative pole after resistance R8 with when base chip U2 THRE pins be connected.
Base chip U2 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 good voltage stabilizing function, and when input voltage fluctuates, it can be stable with maintenance voltage,
So that present invention work is more stable.
(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 U2, bidirectional thyristor VS, potentiometer R6, resistance R7, resistance R8,
Resistance R9, resistance R10, resistance R11, resistance R12, illuminating lamp EL, diode D3, diode D4, diode D5, electric capacity C3, electricity
Hold C4, switch SB, light emitting diode VL, illuminating lamp EL, light sensation circuit, electric voltage frequency process circuit and voltage stabilizing source circuit group
Into.
Wherein, diode D5 P poles ground connection, second plate of the N poles with bidirectional thyristor VS after resistance R12 are connected.
When resistance R11 is serially connected between base chip U2 OUT pins and bidirectional thyristor VS control pole.Base when resistance R10 is serially connected in
Between chip U2 TRI pins and RE pins.Diode D4 P poles with when base chip U2 RE pins be connected, N poles are through luminous
After diode VL with when base chip U2 OUT pins be connected.Base chip U2 VCC pins and RE pins when resistance R9 is serially connected in
Between.When switch SB is serially connected between base chip U2 TRI pins and diode D5 N poles.Electric capacity C4 positive pole with when base core
Piece U2 CONT pins are connected, and negative pole is connected with diode D5 N poles.Electric capacity C3 negative pole with when base chip U2 THRE
Pin is connected, positive pole after potentiometer R6 with when base chip U2 RE pins be connected.Diode D3 P poles are after resistance R7
It is connected with electric capacity C4 negative pole, N poles are connected with electric capacity C3 negative pole.Light sensation circuit respectively with when base chip U2 RE pins
It is connected with electric capacity C4 negative pole.Resistance R8 one end is connected with light sensation circuit, the other end with when base chip U2 THRE manage
Pin is connected.Voltage stabilizing source circuit is connected with light sensation circuit, and 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 U2 THRE pins are connected with its DIS pin when described.The control of the potentiometer R6
End processed with when base chip U2 RE pins be connected.The electric voltage frequency process circuit is also connected with light sensation circuit.
The bidirectional thyristor VS, resistance R11 and resistance R12 collectively constitute an on-off circuit；The on-off circuit can be with
According to when the level signal that exports of base chip U2 come on or off, light so as to realize or extinguish illuminating lamp EL.The two-way crystalline substance
Brake tube VS model SC241D, resistance R11 resistance are 120 Ω, and resistance R12 resistance is then 5K Ω.
This when base chip U2 be NE555 integrated chips, diode D3 and diode D4 and diode D5 is 1N4001
Type diode, resistance R10 resistance is 10K Ω, and potentiometer R6 maximum value is 2.2M Ω, and resistance R7 resistance is 1.5M
Ω, resistance R8 and resistance R9 resistance are 1M Ω, and electric capacity C3 capacitance is 100 μ F, and electric capacity C4 capacitance is then 0.1 μ F, should
Light emitting 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 VT3, triode VT4, diode D2, resistance R4, resistance R5 and electric capacity C2 compositions.
During connection, resistance R4 is serially connected between light sensation triode VT3 colelctor electrode and triode VT4 base stage.Diode
D2 N poles are connected with triode VT4 colelctor electrode, and P poles are connected with electric capacity C101 negative pole.Electric capacity C2 positive pole and three poles
Pipe VT4 base stage is connected, and emitter stage of the negative pole with light sensation triode VT3 after resistance R5 is connected.The P of the diode D2
Pole is connected with voltage stabilizing source circuit.The emitter stage of the phototriode VT3 negative pole and voltage stabilizing source circuit with electric capacity C4 respectively
It is connected.The colelctor electrode of the triode VT4 is connected with phototriode VT3 colelctor electrode, its emitter stage with when base chip
U2 RE pins are connected.The negative pole of the electric capacity C2 after resistance R8 with when base chip U2 THRE pins be connected.
Phototriode VT3 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 VT3 model 3DU5.Triode VT4 model 9013, two
Pole pipe D2 is 1N4001 type diodes, and resistance R4 and resistance R5 resistance are 10K Ω, and electric capacity C2 capacitance is 100 μ F.
The voltage stabilizing source circuit is by transformer T, diode rectifier U1, triode VT1, triode VT2, resistance R1, electricity
Hinder R2, resistance R3, electric capacity C1 and voltage-regulator diode D1 composition.
During connection, the cathode output end of electric capacity C1 positive pole with diode rectifier U1 after resistance R1 is connected, negative pole
It is connected with diode rectifier U1 cathode output end.Voltage-regulator diode D1 N poles are connected with triode VT1 base stage, P
Pole is connected with electric capacity C1 negative pole.Resistance R2 is serially connected between triode VT2 base stage and emitter stage.Resistance R3 is serially connected in three
Between pole pipe VT2 emitter stage and voltage-regulator diode D1 P poles.The colelctor electrode of the triode VT2 and triode VT1 current collection
Pole is connected, and its base stage is connected with triode VT1 emitter stage, and emitter stage is then connected with diode D2 P poles.Described three
Pole pipe VT1 colelctor electrode is connected with diode rectifier U1 cathode output end, and base stage is connected with electric capacity C1 positive pole.Institute
The negative pole for stating electric capacity C1 is connected with phototriode VT3 emitter stage.The input of the diode rectifier U1 respectively with
The Same Name of Ends of transformer T secondary inductance coil is connected with non-same polarity.The primary side inductance coil of the transformer T it is of the same name
End and non-same polarity are collectively forming power input and are connected with civil power.
When civil power occurs fluctuating and causes voltage to raise, triode VT1 base voltage rises, and its collector current increases
Greatly, its collector voltage is caused to decline, and then the voltage for exporting triode VT2 emitter stage declines, and maintains output voltage
Stabilization so that the present invention stability it is higher.
Triode VT1 and triode VT2 model are 2N3055, and resistance R1 resistance is 2.2K Ω, resistance R2 and
Resistance R3 resistance is 10K Ω, and electric capacity C1 capacitance is 100 μ F, voltage-regulator diode D1 model 1N4729, and diode is whole
Stream device U1 is then made up of 4 1N4001 type diodes, and transformer T output voltage is 6V.
At night, phototriode VT3 resistance is very big, and electric current turns on triode VT4, when base chip U2 obtain it is electric its
OUT pins export low level, and light emitting diode VL sends faint green glow, prompted the position of people's desk lamp, allowed one to
Desk lamp is found in dark；Due to when base chip U2 output low level can not turn on bidirectional thyristor VS, therefore illuminating lamp EL
It is not lit.When switch SB closures, when base chip U2 upset, its OUT pin output high level, at this moment bidirectional thyristor VS
Turned on by high level, illuminating lamp EL is then lit, and now light emitting diode VL then extinguishes；Due to the light that desk lamp is sent compared with
Secretly, and be not direct irradiation on phototriode VT3, therefore phototriode VT3 resistance is still very big, illuminating lamp
EL work can be very stable.Base chip U2 automatic turnings when over time, its OUT pin export low level, illuminating lamp again
EL extinguishes, and light emitting diode VL is lighted again, and so as to remind people to need to rest, regulation potentiometer R6 can then change illuminating lamp
Times of the EL per task.During the day, phototriode VT3 resistance becomes very little, and now triode VT4 ends, Shi Ji
Chip U2 must not be electric, and light emitting diode VL does not also work, 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. based on electric voltage frequency processing desk lamp control system, it is characterised in that mainly by when base chip U2, bidirectional thyristor
VS, electric voltage frequency process circuit, P poles are grounded, N poles are connected after resistance R12 with bidirectional thyristor VS second plate two
Pole pipe D5, resistance R11 when being serially connected between base chip U2 OUT pins and bidirectional thyristor VS control pole, when being serially connected in
Resistance R10, P pole between base chip U2 TRI pins and RE pins with when base chip U2 RE pins be connected, N poles are through hair
After optical diode VL with when base chip U2 the diode D4 that is connected of OUT pins, when being serially connected in base chip U2 VCC pins and
Resistance R9 between RE pins, switch SB when being serially connected between base chip U2 TRI pins and diode D5 N poles, positive pole
With when base chip U2 CONT pins be connected, the electric capacity C4 that negative pole is connected with diode D5 N poles, negative pole with when base chip
U2 THRE pins are connected, positive pole after potentiometer R6 with when base chip U2 electric capacity C3, the P poles that are connected of RE pins through electricity
Be connected after resistance R7 with electric capacity C4 negative pole, the diode D3 that N poles are connected with electric capacity C3 negative pole, respectively with when base chip U2
The light sensation circuit that is connected with electric capacity C4 negative pole of RE pins, one end is connected with light sensation circuit, the other end and when base chip
The resistance R8 that U2 THRE pins are connected, is serially connected between electric voltage frequency process circuit and bidirectional thyristor the VS first anode
Illuminating lamp EL, and be connected with light sensation circuit voltage stabilizing source circuit composition；When described base chip U2 THRE pins and its
DIS pins are connected；The control terminal of the potentiometer R6 with when base chip U2 RE pins be connected；The electric voltage frequency processing
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. the desk lamp control system according to claim 1 based on electric voltage frequency processing, it is characterised in that the source of stable pressure
Electric routing transformer T, diode rectifier U1, triode VT1, triode VT2, positive pole after resistance R1 with diode rectifier
Electric capacity C1, the N pole that U1 cathode output end is connected, negative pole is connected with diode rectifier U1 cathode output end and three poles
The voltage-regulator diode D1 that pipe VT1 base stage is connected, P poles are connected with electric capacity C1 negative pole, it is serially connected in triode VT2 base stage
Resistance R2 between emitter stage, and the resistance being serially connected between triode VT2 emitter stage and voltage-regulator diode D1 P poles
R3 is formed；The colelctor electrode of the triode VT2 is connected with triode VT1 colelctor electrode, its base stage and triode VT1 transmitting
Pole is connected, emitter stage is then connected with light sensation circuit；The colelctor electrode of the triode VT1 and diode rectifier U1 negative pole
Output end is connected, base stage is connected with electric capacity C1 positive pole；The negative pole of the electric capacity C1 is connected with light sensation circuit；Described two
Pole pipe rectifier U1 input is connected with the Same Name of Ends and non-same polarity of transformer T secondary inductance coil respectively；It is described
The Same Name of Ends and non-same polarity of transformer T primary side inductance coil are collectively forming power input.
3. the desk lamp control system according to claim 2 based on electric voltage frequency processing, it is characterised in that the light sensation electricity
Phototriode VT3, triode VT4 are route, is serially connected between light sensation triode VT3 colelctor electrode and triode VT4 base stage
Resistance R4, N pole be connected with triode VT4 colelctor electrode, the diode D2 that P poles are connected with electric capacity C101 negative pole, with
And the electricity that positive pole is connected with triode VT4 base stage, negative pole is connected after resistance R5 with light sensation triode VT3 emitter stage
Hold C2 compositions；The P poles of the diode D2 are connected with triode VT2 emitter stage；The emitter stage of the phototriode VT3
It is connected respectively with electric capacity C4 negative pole and voltage-regulator diode D1 P poles；The colelctor electrode and phototriode of the triode VT4
VT3 colelctor electrode is connected, its emitter stage with when base chip U2 RE pins be connected；The negative pole of the electric capacity C2 is through resistance R8
Afterwards with when base chip U2 THRE pins be connected.
4. the desk lamp control system according to claim 3 based on electric voltage frequency processing, it is characterised in that base core when described
Piece U2 is NE555 integrated chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078920.5A CN107660030A (en) | 2017-11-06 | 2017-11-06 | Desk lamp control system based on electric voltage frequency processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078920.5A CN107660030A (en) | 2017-11-06 | 2017-11-06 | Desk lamp control system based on electric voltage frequency processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107660030A true CN107660030A (en) | 2018-02-02 |
Family
ID=61120174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711078920.5A Pending CN107660030A (en) | 2017-11-06 | 2017-11-06 | Desk lamp control system based on electric voltage frequency processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107660030A (en) |
-
2017
- 2017-11-06 CN CN201711078920.5A patent/CN107660030A/en active Pending
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Application publication date: 20180202 |
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