CN209448946U - A kind of houselights control and regulation circuit - Google Patents

Abstract

The utility model discloses a kind of houselights to control to adjust circuit; including illuminance sensor, infrared human body heat releasing electric transducer, signal amplifier, single-chip microcontroller, adjustment module and protective module; illuminance sensor, infrared human body heat releasing electric transducer pass through signal amplifier respectively and connect single-chip microcontroller; single-chip microcontroller is separately connected adjustment module and protective module; the utility model structural principle is simple; the brightness of houselights can be automatically adjusted according to sensor signal; save electric energy; in addition, also having power-off protection function.

Description

A kind of houselights control and regulation circuit

Technical field

The utility model relates to illumination control circuit technical field, specially a kind of houselights controls to adjust circuit.

Background technique

The effect of illuminator has been not limited solely to illuminate and the eyes of household, it is played when more It is decoration function.Therefore the selection of illuminator will be more much more complex, it is not only related to safe and power saving, and can be related to To factors such as material, type, style grades.One good lamp decoration may once become the soul of finishing.

Illuminator in current campus adjusts low efficiency, and the brightness of headlamp, which generally passes through, artificially to be adjusted, energy conservation effect Fruit is poor, and does not have defencive function, therefore, it is necessary to improve to control circuit.

Utility model content

The purpose of this utility model is to provide a kind of houselights to control to adjust circuit, to solve in above-mentioned background technique The problem of proposition.

To achieve the above object, the utility model provides the following technical solutions: a kind of houselights control and regulation circuit, Including illuminance sensor, infrared human body heat releasing electric transducer, signal amplifier, single-chip microcontroller, adjustment module and protective module, institute It states illuminance sensor, infrared human body heat releasing electric transducer and single-chip microcontroller is connected by signal amplifier respectively, the single-chip microcontroller is adopted With AT89C51 single-chip microcontroller, the single-chip microcontroller is separately connected adjustment module and protective module.

Preferably, the adjustment module includes the first Schmitt trigger, the second Schmitt trigger, operational amplifier A With operational amplifier B, the first Schmitt trigger input inputs pwm signal, and output end connects the triggering of the second Schmitt Device input terminal, the second Schmitt trigger output end connect the one end resistance A, and the resistance A other end is separately connected the one end resistance B With the one end capacitor C, the resistance B other end is separately connected the one end capacitor D and operational amplifier A electrode input end, the capacitor C The other end connection capacitor D other end is simultaneously grounded, and the operational amplifier A negative input connects output end, the operation amplifier Device A output end connects the one end resistance C, and the resistance C other end is separately connected operational amplifier B electrode input end and the one end resistance G, institute Operational amplifier B output end connection one end resistance F, resistance F other end connecting triode B base stage are stated, the operational amplifier B is born Pole input terminal is separately connected the one end resistance D and the one end resistance E, resistance D other end ground connection, and the resistance E other end is separately connected Triode B emitter and the one end resistance H, the resistance H other end connect diode C cathode, and the diode C plus earth is described Diode D is accessed between triode B collector and the resistance G other end.

Preferably, the protective module includes switch, triode A, field effect transistor, bidirectional trigger diode and two-way Thyristor, triode A base stage are separately connected diode B cathode and the one end resistance L, and collector is separately connected field effect transistor Grid and the one end resistance J, triode A emitter are separately connected field effect transistor source electrode and the resistance L other end, field effect transistor Pipe drain electrode is separately connected diode C cathode and the one end capacitor B, the capacitor B other end be separately connected bidirectional trigger diode one end and The one end resistance M, the resistance M other end connect bidirectional triode thyristor pipe one end, and the bidirectional triode thyristor pipe other end is separately connected two-way triggering The diode other end and triode A emitter, diode C anode are separately connected the one end resistance I and diode B anode, and resistance I is another Resistance J, capacitor A, electricity is connected in series in one end connection switch one end, switch other end connection diode A anode, diode A cathode Hold the both ends A parallel resistance K.

Preferably, the illuminance sensor model uses BF-FC-GZ；The infrared human body heat releasing electric transducer model Using HC-SR501.

Compared with prior art, the utility model has the beneficial effects that

(1) the utility model structural principle is simple, and the brightness of houselights, section can be automatically adjusted according to sensor signal Electric energy is saved, in addition, also having power-off protection function.

(2) the accurate output of 4-20MA electric current may be implemented in the adjustment module that the utility model uses, and height may be implemented The electric current of precision exports, due to using Schmidt trigger and current negative feedback circuit, anti-interference ability and high stability.

(3) the utility model use protective module can prevent lighting circuit because power-off after open when instantaneous high current due to Headlamp is burnt out, the waste of the energy and the generation of safety accident are avoided.

Detailed description of the invention

Fig. 1 is the utility model control principle block diagram；

Fig. 2 is the utility model adjustment module circuit diagram；

Fig. 3 is the utility model protective module circuit diagram.

In figure: 1, illuminance sensor；2, infrared human body heat releasing electric transducer；3, signal amplifier；4, single-chip microcontroller；5, it adjusts Save module；6, protective module；7, the first Schmitt trigger；8, the second Schmitt trigger；9, it switchs；10, field effect transistor Pipe；11, bidirectional trigger diode；12, bidirectional triode thyristor pipe.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of houselights control and regulation circuit, including Illuminance sensor 1, infrared human body heat releasing electric transducer 2, signal amplifier 3, single-chip microcontroller 4, adjustment module 5 and protective module 6, The illuminance sensor 1, infrared human body heat releasing electric transducer 2 connect single-chip microcontroller 4, the list by signal amplifier 3 respectively Piece machine 4 uses AT89C51 single-chip microcontroller, and the single-chip microcontroller 4 is separately connected adjustment module 5 and protective module 6;Illuminance sensor 1 Model uses BF-FC-GZ；2 model of infrared human body heat releasing electric transducer uses HC-SR501.

In the utility model, adjustment module 5 is put including the first Schmitt trigger 7, the second Schmitt trigger 8, operation Big device A1d and operational amplifier B2d, 7 input terminal of the first Schmitt trigger input pwm signal, output end connection second 8 input terminal of Schmitt trigger, 8 output end of the second Schmitt trigger connect the one end resistance A1c, the resistance A1c other end It is separately connected the one end resistance B2c and the one end capacitor C3b, the resistance B2c other end is separately connected the one end capacitor D4b and operation is put Big device A1d electrode input end, the capacitor C3b other end connect the capacitor D4b other end and are grounded, the operational amplifier A1d Negative input connects output end, and the operational amplifier A1d output end connects the one end resistance C3c, resistance C3c other end difference Operational amplifier B2d electrode input end and the one end resistance G7c are connected, the operational amplifier B2d output end connects resistance F6c mono- End, resistance F6c other end connecting triode B2e base stage, the operational amplifier B2d negative input are separately connected resistance D4c One end and the one end resistance E5c, resistance D4c other end ground connection, the resistance E5c other end are separately connected triode B2e emitter With the one end resistance H8c, the resistance H8c other end connects diode C3a cathode, the diode C3a plus earth, the triode Diode D4a is accessed between B2e collector and the resistance G7c other end.4- may be implemented in the adjustment module that the utility model uses High-precision electric current output may be implemented, due to using Schmidt trigger and Current Negative Three-Point Capacitance in the accurate output of 20MA electric current Circuit, anti-interference ability and high stability.

In addition, protective module 6 includes switch 9, triode A1e, field effect transistor 10, two-way touching in the utility model Hair diode 11 and bidirectional triode thyristor pipe 12, triode A1e base stage are separately connected diode B2a cathode and the one end resistance L12c, Collector is separately connected 10 grid of field effect transistor and the one end resistance J10c, and triode A1e emitter is separately connected field-effect 10 source electrode of transistor and the resistance L12c other end, the drain electrode of field effect transistor 10 are separately connected diode C 3a cathode and capacitor The one end B2b, the capacitor B2b other end are separately connected 11 one end of bidirectional trigger diode and the one end resistance M13c, and resistance M13c is another End connection 12 one end of bidirectional triode thyristor pipe, 12 other end of bidirectional triode thyristor pipe be separately connected 11 other end of bidirectional trigger diode and Triode A1e emitter, diode C 3a anode are separately connected the one end resistance I9c and diode B2a anode, and resistance I9c is another 9 one end of connection switch is held, 9 other end of switch connects diode A1a anode, and resistance J10c, electricity is connected in series in diode A1a cathode Hold A1b, the both ends capacitor A1b parallel resistance K11c.The protective module that the utility model uses can prevent lighting circuit because of power-off Afterwards open when instantaneous high current and burn out headlamp, avoid the waste of the energy and the generation of safety accident.

In conclusion the utility model structural principle is simple, houselights can be automatically adjusted according to sensor signal Brightness saves electric energy, in addition, also having power-off protection function.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of houselights controls to adjust circuit, including illuminance sensor (1), infrared human body heat releasing electric transducer (2), Signal amplifier (3), single-chip microcontroller (4), adjustment module (5) and protective module (6), it is characterised in that: the illuminance sensor (1), infrared human body heat releasing electric transducer (2) respectively by signal amplifier (3) connection single-chip microcontroller (4), adopt by the single-chip microcontroller (4) With AT89C51 single-chip microcontroller, the single-chip microcontroller (4) is separately connected adjustment module (5) and protective module (6).

2. a kind of houselights according to claim 1 controls to adjust circuit, it is characterised in that: the adjustment module (5) Including the first Schmitt trigger (7), the second Schmitt trigger (8), operational amplifier A (1d) and operational amplifier B (2d), First Schmitt trigger (7) input terminal inputs pwm signal, and output end connects second Schmitt trigger (8) input terminal, Second Schmitt trigger (8) output end connects the one end resistance A (1c), and resistance A (1c) other end is separately connected resistance B The one end (2c) and the one end capacitor C (3b), resistance B (2c) other end are separately connected the one end (4b) capacitor D and operational amplifier A (1d) electrode input end, capacitor C (3b) other end connect capacitor D (4b) other end and are grounded, the operational amplifier A (1d) negative input connects output end, and operational amplifier A (1d) output end connects the one end resistance C (3c), resistance C (3c) The other end is separately connected operational amplifier B (2d) electrode input end and the one end resistance G (7c), and the operational amplifier B (2d) is defeated Outlet connects the one end resistance F (6c), resistance F (6c) other end connecting triode B (2e) base stage, the operational amplifier B (2d) Negative input is separately connected the one end (4c) resistance D and the one end resistance E (5c), resistance D (4c) other end ground connection, the resistance E (5c) other end is separately connected triode B (2e) emitter and the one end resistance H (8c), and resistance H (8c) other end connects diode C (3a) cathode, diode C (3a) plus earth, triode B (2e) collector and resistance G (7c) other end are indirectly Enter diode D (4a).

3. a kind of houselights according to claim 1 controls to adjust circuit, it is characterised in that: the protective module (6) Including switch (9), triode A (1e), field effect transistor (10), bidirectional trigger diode (11) and bidirectional triode thyristor pipe (12), triode A (1e) base stage is separately connected diode B (2a) cathode and the one end resistance L (12c), and collector is separately connected field Effect transistor (10) grid and the one end resistance J (10c), triode A (1e) emitter are separately connected field effect transistor (10) Source electrode and resistance L (12c) other end, field effect transistor (10) drain electrode are separately connected diode C (3a) cathode and capacitor B (2b) One end, capacitor B (2b) other end are separately connected bidirectional trigger diode (11) one end and the one end resistance M (13c), resistance M (13c) The other end connects bidirectional triode thyristor pipe (12) one end, and bidirectional triode thyristor pipe (12) other end is separately connected bidirectional trigger diode (11) other end and triode A (1e) emitter, diode C (3a) anode are separately connected the one end (9c) resistance I and diode B (2a) anode, resistance I (9c) other end connection switch (9) one end, switch (9) other end connection diode A (1a) anode, two poles Resistance J (10c), capacitor A (1b), capacitor A (1b) both ends parallel resistance K (11c) is connected in series in pipe A (1a) cathode.

4. a kind of houselights according to claim 1 controls to adjust circuit, it is characterised in that: the illuminance sensor (1) model uses BF-FC-GZ；Infrared human body heat releasing electric transducer (2) model uses HC-SR501.