CN208479987U - A kind of circuit for controlling economical light of automatic regulating lightness - Google Patents

Abstract

The utility model discloses a kind of circuit for controlling economical light of automatic regulating lightness.The circuit consists of the following components；Power supply circuit, mode switching circuit, data acquisition with conversion circuit, clock circuit output circuit, indicator light circuit.Compared with prior art, the utility model is utilized according to the bright dark of the strong and weak different constantly adjusting light bulbs of external environment illumination, keeps constant ambient brightness, to achieve energy-saving and emission reduction purposes.The bright dark this lamp control system that the electric light of electric light is automatically adjusted according to the light intensity of external environment is not all widely used in electric light used in present public place, therefore the appearance of this electric control circuit will have very big market, entire circuit structure is simple simultaneously, it is low in cost, high efficiency is well suited for being promoted the use of in various public places.

Description

A kind of circuit for controlling economical light of automatic regulating lightness

Technical field

The utility model relates to a kind of circuit for controlling economical light of automatic regulating lightness, especially a kind of according to external environment The different automatic adjustment bright dark circuits of light bulb of luminous intensity.

Background technique

Data are shown, currently, the electric consumption on lighting in China accounts for about the 13% of Analyzing Total Electricity Consumption, are wanted to some pairs of lighting qualities It asks higher, the unit that lighting hours is longer, illumination place is numerous, will appear whole day illumination phenomenon, and resulting photograph mostly Bright power consumption accounts for about all power consumptions 40%.Also, when extraneous light application ratio is more sufficient, lighting is still operated at full capacity, and is provided additionally not The illumination needed, to cause a large amount of unnecessary waste of energy and economic loss.It is therefore desirable to which one kind can be according to the external world Light intensity automatically adjusts the control circuit of electric light brightness, carries out automatically controlling to electric light brightness, avoids unnecessary waste of energy, into And it achieves energy-saving and emission reduction purposes.

Summary of the invention

The purpose of the present invention is to provide a kind of circuit for controlling economical light of automatic regulating lightness, in extraneous intensity of illumination ratio In stronger situation, circuit automatically turns down the brightness of LED bulb, and the brightness in environment is made to maintain most suitable people's working and learning Brightness under, unnecessary power consumption is avoided, to achieve energy-saving and emission reduction purposes.

To achieve the goals above, the present invention adopts the following technical scheme:

A kind of circuit for controlling economical light of automatic regulating lightness, the circuit consist of the following components；Power supply circuit, mould Formula conversion circuit, data acquisition with conversion circuit, clock circuit output circuit, indicator light circuit；

The power supply circuit includes: attaching plug P2 and switch SW1, and the attaching plug P2 mono- terminates positive pole, separately One termination one end switch SW1, another termination power cathode of switch SW1.Reset circuit includes: switch KEY1, resistance R1 and capacitor C2, the resistance R1 mono- terminate power cathode, the one end another termination capacitor C2, the one end switch KEY1 and chip U3RST pin, electricity Hold the C2 other end to connect with the switch KEY1 other end, positive pole.Mode switching circuit includes switch KEY2, the switch KEY2 One termination power cathode, another chip termination U3P1.0 pin.Download circuit includes 2pi contact pin U2, the 2pi contact pin U2TXD Chip termination U3P3.0 pin, 2pi contact pin U2RXD chip termination U3P3.1 pin.Data acquisition includes: photosensitive with conversion circuit Diode D1, chromatic circle resistance R4, chip U3 and U4, the photodiode D1 anode meet positive pole, cathode connecting resistance R4 mono- End and chip U4CH0 pin, another termination power cathode of resistance R4, chip U4GND pin meet power cathode, chip U4Draw Foot connects chip U3P3.7 pin, and chip U4VCC pin connects positive pole, and chip U4D0 and D1 pin meet chip U3P3.6 jointly and draws Foot, chip U4CLK pin connect chip U3P3.5 pin, chip U3VCC, VPP pin connects positive pole, and chip U3GND pin connects Power cathode.Clock circuit includes: capacitor C1, capacitor C3 and crystal oscillator Y1, the mono- chip termination U3XTAL2 of crystal oscillator Y1 and capacitor The one end C1, another chip termination U3XTAL1 of crystal oscillator Y1 and the one end capacitor C3, the capacitor C1 other end and another termination power of capacitor C3 Cathode.Output circuit includes: chromatic circle resistance R8, triode Q1 and socket J1, and socket J1 mono- terminates positive pole, another termination three Pole pipe Q1 emitter, triode Q1 collector connect positive pole, the one end triode Q1 base stage connecting resistance R8, another termination of resistance R8 Chip U3P2.0 pin.Indicator light circuit includes: LED light D3, LED light D4, chromatic circle resistance R6 and chromatic circle resistance R7, LED light D3 Input termination positive pole exports the one end terminating resistor R6, another chip termination U3P0.2 pin of resistance R6, LED light D4 input Termination power anode, exports the one end terminating resistor R7, another chip termination U3P0.0 pin of resistance R7.

As a preferred solution of the present invention: capacitor C1, C3 are 30PF ceramic disc capacitors, and capacitor C2 is 10UF electrolytic capacitor, LED Lamp D3 is red LED lamp, and LED light D4 is yellow LED lamp, and switch KEY1, KEY2 are microswitches, and attaching plug P2 is DC-002 Attaching plug, chromatic circle resistance R1, R4 are 10K chromatic circle resistances, and chromatic circle resistance R6, R7, R8 are 1K chromatic circle resistances, and switch SW1 is double Throw switch, chip U3 are STC89C51 single-chip microcontrollers, and chip U4 is ADC0832 modulus conversion chip, and crystal oscillator Y1 is 12MHZ crystal oscillator. Above scheme is only preferred embodiment, optionally scheme, as long as this circuit control principle identical, it can be achieved that said function Control circuit, all within the scope of this patent.

3 pin of the circuit U explanation, XTAL1, XTAL2 pin are external crystal oscillator pin, and VCC, GND pin are main power source Pin, RST pin are reset pin, and EA/VPP pin is that the inside and outside of program storage gates, and connect low level from external program Memory read instructions, from internal program memory reading instruction if connecing high level, pin P0.0, P0.2, P2.0, P3.5, P3.6, P3.7 are arbitrarily programmable input and output pin, and P3.0, P3.1 pin is respectively serial port input/output terminal, and P1.0 draws Foot is the external counting input terminal pin of timer/counter T2.Affiliated pin is preferred pin, and optionally pin, achievable Other pins of any single-chip microcontroller of above-mentioned pin function all can be selected.

The input of the circuit is 5V DC current, exports the DC current for change in duty cycle.

The input terminal attaching plug P2 of the circuit connects DC power supply, and output end socket J1 connects outer load.

The photodiode of the circuit converts optical signals to electric signal for detecting intensity of illumination in external environment.

Compared with prior art, present invention utilizes according to the strong and weak different constantly adjusting light bulbs of external environment illumination It is bright dark, keep constant ambient brightness, to achieve energy-saving and emission reduction purposes.Electric light used in present public place is all without extensive Using the bright secretly this lamp control system, therefore this electric light control for the electric light for automatically adjusting electric light according to the light intensity of external environment The appearance of circuit processed will have very big market, while entire circuit structure is simple, and low in cost, high efficiency is well suited for each It is promoted the use of kind public place.

Detailed description of the invention

Fig. 1 is a kind of circuit for controlling economical light composition schematic diagram of automatic regulating lightness proposed by the present invention；

Fig. 2 is the circuit for controlling economical light figure that the automatic regulating lightness in market is used in embodiment.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention 1, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

It is as shown in Figure 1 and Figure 2 a kind of circuit for controlling economical light of automatic regulating lightness in the present embodiment.The circuit Core is made of photosensitive circuit, D/A converting circuit, control circuit and four part of load circuit.Specifically, power supply electricity Road consists of the following parts: attaching plug P2 and switch SW1, and the attaching plug P2 mono- terminates positive pole, and another termination is opened Close the one end SW1, another termination power cathode of switch SW1.Reset circuit includes: switch KEY1, resistance R1 and capacitor C2, the electricity It hinders R1 mono- and terminates power cathode, the one end another termination capacitor C2, the one end switch KEY1 and chip U3RST pin, capacitor C2 are another End connects with the switch KEY1 other end, positive pole.Mode switching circuit includes switch KEY2, and the switch KEY2 mono- terminates electricity Source cathode, another chip termination U3P1.0 pin.Download circuit includes 2pi contact pin U2, the 2pi contact pin U2TXD chip termination U3P3.0 pin, 2pi contact pin U2RXD chip termination U3P3.1 pin.Photosensitive circuit and analog to digital conversion circuit include: photosensitive two pole Pipe D1, chromatic circle resistance R4, chip U3 and U4, the photodiode D1 anode connect positive pole, cathode one end connecting resistance R4 and Chip U4CH0 pin, another termination power cathode of resistance R4, chip U4GND pin meet power cathode, chip U4Pin connects Chip U3P3.7 pin, chip U4VCC pin connect positive pole, and chip U4D0 and D1 pin connect chip U3P3.6 pin jointly, Chip U4CLK pin connects chip U3P3.5 pin, chip U3VCC, VPP pin connects positive pole, and chip U3GND pin connects electricity Source cathode.Clock circuit includes: capacitor C1, capacitor C3 and crystal oscillator Y1, the crystal oscillator Y1 mono- chip termination U3XTAL2 and capacitor C1 One end, another chip termination U3XTAL1 of crystal oscillator Y1 and the one end capacitor C3, the capacitor C1 other end and another termination power of capacitor C3 are negative Pole.Output circuit includes: chromatic circle resistance R8, triode Q1 and socket J1, and socket J1 mono- terminates positive pole, three poles of another termination Pipe Q1 emitter, triode Q1 collector connect positive pole, the one end triode Q1 base stage connecting resistance R8, another termination core of resistance R8 Piece U3P2.0 pin.Indicator light circuit includes: LED light D3, LED light D4, chromatic circle resistance R6 and chromatic circle resistance R7, and LED light D3 is defeated Enter termination power anode, exports the one end terminating resistor R6, another chip termination U3P0.2 pin of resistance R6, LED light D4 input terminal Positive pole is connect, the one end terminating resistor R7, another chip termination U3P0.0 pin of resistance R7 are exported.

Attaching plug P2 connects power supply system, powers for entire control circuit, and commutator SW1 is the master switch of control circuit Whether control whole system works.Switch KEY2 is mode conversion switch, and convertible mode has LED bulb to be always on mode, outside Bright two kinds of the dark mode of boundary's light intensity regulating LED bulb.LED light D3 is lighted, and shows that the control model of circuit is to be always on mode, outer load The brightness of LED bulb keeps maximum, and LED light D4 is lighted, and shows that the control model of circuit is that extraneous light intensity regulating LED bulb is bright dark Mode, the outer brightness for carrying LED bulb are controlled by environmental light intensity.2pi contact pin U2 is serial ports downloading mouth, according to control circuit mounting ring The brightness that the different light bulbs in border need to be kept is also different, it is therefore desirable to have downloading mouth to change the program of control circuit to adapt to difference Environment.Crystal oscillator Y1, the circuit that capacitor C1, C3 are constituted provide clock signal for chip U3, and photodiode D1 is used to experience extraneous Intensity of illumination in environment, ambient light photograph is stronger, is just become larger by the electric current of photodiode, is passed through chip U4CH0 pin Electric current also become larger, chip U4 is converted to digital signal to the analog signal from CH0 pin, is output to chip U3, chip U3 The digital signal to come is read out, the exact value of light intensity is obtained by calculation, and then controls delivery outlet P2.0 and exports duty Than signal, when extraneous light intensity is strong, duty ratio increases, and outer carry generates time of potential difference and shorten in positive and negative anodes one second, bulb brightness It is dimmed.

Control circuit is in the bright dark mode of extraneous light intensity regulating LED bulb, and LED light D4 is always on, when the environment of device installation It when gradually brightening, is become larger by the electric current of photodiode, the electric current for being passed through chip U4 becomes larger, and chip U4 is chip U3 exports a digital signal become larger, and the duty ratio of chip U3 output signal is gradually increased, the outer brightness for carrying LED bulb It is gradually lowered, reduces the power on light bulb, reduce the unnecessary waste of electricity, realize energy-saving and emission-reduction.

Control circuit is in the bright dark mode of extraneous light intensity regulating LED bulb, and LED light D4 is always on, when the environment of device installation It when gradually dimmed, is gradually become smaller by the electric current of photodiode, the electric current for being passed through chip U4 gradually becomes smaller, and chip U4 is chip U3 exports a gradually smaller digital signal, and the duty ratio of chip U3 output signal gradually decreases, the outer brightness for carrying LED bulb Just it is gradually increased.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (5)

1. a kind of circuit for controlling economical light of automatic regulating lightness, which is characterized in that the circuit consists of the following components；For Circuit, mode switching circuit, data acquisition with conversion circuit, clock circuit output circuit, indicator light circuit；

The power supply circuit includes: attaching plug P2 and switch SW1, and the attaching plug P2 mono- terminates positive pole, the other end Connect the one end switch SW1, another termination power cathode of switch SW1；Reset circuit includes: switch KEY1, resistance R1 and capacitor C2, institute It states resistance R1 mono- and terminates power cathode, the one end another termination capacitor C2, the one end switch KEY1 and chip U3RST pin, capacitor C2 The other end connects with the switch KEY1 other end, positive pole；Mode switching circuit includes switch KEY2, the one end the switch KEY2 Connect power cathode, another chip termination U3P1.0 pin；Download circuit includes 2pi contact pin U2, the 2pi contact pin U2TXD termination Chip U3P3.0 pin, 2pi contact pin U2RXD chip termination U3P3.1 pin；Data acquisition and conversion circuit include: photosensitive two pole Pipe D1, chromatic circle resistance R4, chip U3 and U4, the photodiode D1 anode connect positive pole, cathode one end connecting resistance R4 and Chip U4CH0 pin, another termination power cathode of resistance R4, chip U4GND pin meet power cathode, chip U4Pin connects Chip U3P3.7 pin, chip U4VCC pin connect positive pole, and chip U4D0 and D1 pin connect chip U3P3.6 pin jointly, Chip U4CLK pin connects chip U3P3.5 pin, and chip U3VCC, VPP pin connects positive pole, and chip U3GND pin connects power supply Cathode；Clock circuit includes: capacitor C1, capacitor C3 and crystal oscillator Y1, the crystal oscillator Y1 mono- chip termination U3XTAL2 and capacitor C1 mono- End, another chip termination U3XTAL1 of crystal oscillator Y1 and the one end capacitor C3, the capacitor C1 other end and another termination power of capacitor C3 are negative Pole；Output circuit includes: chromatic circle resistance R8, triode Q1 and socket J1, and socket J1 mono- terminates positive pole, three poles of another termination Pipe Q1 emitter, triode Q1 collector connect positive pole, the one end triode Q1 base stage connecting resistance R8, another termination core of resistance R8 Piece U3P2.0 pin；Indicator light circuit includes: LED light D3, LED light D4, chromatic circle resistance R6 and chromatic circle resistance R7, and LED light D3 is defeated Enter termination power anode, exports the one end terminating resistor R6, another chip termination U3P0.2 pin of resistance R6, LED light D4 input terminal Positive pole is connect, the one end terminating resistor R7, another chip termination U3P0.0 pin of resistance R7 are exported.

2. the circuit for controlling economical light of automatic regulating lightness according to claim 1, which is characterized in that the capacitor C1, C3 is 30PF ceramic disc capacitor, and capacitor C2 is 10UF electrolytic capacitor, and LED light D3 is red LED lamp, and LED light D4 is yellow LED lamp, Switch KEY1, KEY2 are microswitches, and attaching plug P2 is DC-002 attaching plug, and chromatic circle resistance R1, R4 are 10K colour circle electricity Resistance, chromatic circle resistance R6, R7, R8 are 1K chromatic circle resistances, and switch SW1 is commutator, and chip U3 is STC89C51 single-chip microcontroller, chip U4 is ADC0832 modulus conversion chip, and crystal oscillator Y1 is 12MHZ crystal oscillator.

3. the circuit for controlling economical light of automatic regulating lightness according to claim 1, which is characterized in that the circuit U 3 is drawn Foot explanation, XTAL1, XTAL2 pin are external crystal oscillator pin, and VCC, GND pin are main power pins, and RST pin is to reset to draw Foot, EA/VPP pin are that the inside and outside of program storage gates, and connect low level from external program memory reading instruction, if connecing height Level is then from internal program memory reading instruction, pin P0.0, P0.2, P2.0, P3.5, P3.6, P3.7 be arbitrarily may be programmed it is defeated Enter output pin, P3.0, P3.1 pin is respectively serial port input/output terminal, and P1.0 pin is the outer of timer/counter T2 Portion's counting input end pin.

4. the circuit for controlling economical light of automatic regulating lightness according to claim 1, which is characterized in that the circuit it is defeated Enter for 5V DC current, exports the DC current for change in duty cycle.

5. the circuit for controlling economical light of automatic regulating lightness according to claim 1, which is characterized in that the circuit it is defeated Enter to hold attaching plug P2 to connect DC power supply, output end socket J1 connects outer load.