CN204859663U

CN204859663U - LED mirror front lamp circuit

Info

Publication number: CN204859663U
Application number: CN201520562602.6U
Authority: CN
Inventors: 方芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-30
Filing date: 2015-07-30
Publication date: 2015-12-09
Anticipated expiration: 2025-07-30

Abstract

The utility model discloses a LED mirror front lamp circuit, including infrared sensor IC1, time -recorder IC2, relay K and LED lamp H, the output OUT that infrared sensor IC1's power end VDD connects potentiometre RP1's a stiff end, potentiometre RP1's slip end, triode V2's collecting electrode, LED lamp H, power VCC, time -recorder IC2's pin 4 and time -recorder IC2's pin 8, infrared sensor IC1 connects electric capacity C1 and resistance R1. The utility model discloses LED mirror front lamp circuit is through using infrared sensor as the intelligent control component, and someone just understands starting circuit before the mirror time, has still set up light -operated original paper simultaneously, only the environment bright degree less than the time just can open the LED lamp, therefore have the advantage of with low costs, convenient to use, saving electric energy.

Description

A kind of LED Mirror front lamp circuit

Technical field

The utility model relates to a kind of Mirror front lamp, specifically a kind of LED Mirror front lamp circuit.

Background technology

LED is because the advantages such as its energy-saving and environmental protection, efficient, long service life become the perfect light source of lighting gradually, but the useful life of LED is mainly by the limitation of lamp cooling structure, simultaneously the life-span of LED also will be subject to the restriction in the useful life of driving power, and the heat radiation of driving power is also affect the key factor that LED normally uses.Existing LED Mirror front lamp uses switch control rule mostly, thus causes often forgetting closedown, causes waste of energy.

Utility model content

The purpose of this utility model is the LED Mirror front lamp circuit providing a kind of structure simple, easy to use, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the utility model provides following technical scheme:

A kind of LED Mirror front lamp circuit, comprises infrared sensor IC1, timer IC2, relay K and LED H, the power end VDD of described infrared sensor IC1 connects a stiff end of potentiometer RP1, the sliding end of potentiometer RP1, the collector electrode of triode V2, LED H, power supply VCC, the pin 4 of timer IC2 and the pin 8 of timer IC2, the output OUT of infrared sensor IC1 connects the base stage of the other end connection electric capacity C2 and triode V1 of electric capacity C1 and resistance R1, resistance R1, the collector electrode contact resistance R2 of triode V1, electric capacity C3, the pin 2 of timer IC2 and the pin 6 of timer IC2, the earth terminal GND of infrared sensor IC1 connects the other end of electric capacity C1, the other end of electric capacity C2, electric capacity C3, electric capacity C4, the anode of diode D1, resistance R3, relay K, the contact K-1 of relay K, the emitter of triode V1, the pin 1 of timer IC2, the pin 5 of timer IC2 connects the other end of electric capacity C4, the other end of another stiff end contact resistance R2 of potentiometer RP1, and the pin 3 of timer IC2 connects the negative electrode of diode D1, the other end of resistance R3 and the base stage of triode V2, the emitter of triode V2 connects the other end of relay K, the other end of LED group H connects the other end of the contact K-1 of relay K, and the model of described infrared sensor IC1 is TX05D, and the model of timer IC2 is NE555.

As preferred version of the present utility model: described resistance R3 is photo resistance.

Compared with prior art, the beneficial effects of the utility model are: the utility model LED Mirror front lamp circuit is by using infrared sensor as Based Intelligent Control element, just start-up circuit is understood when someone is before mirror, also be provided with control module simultaneously, just can open LED when only having environmental light brightness not enough, therefore have that cost is low, easy to use, the advantage of saves energy.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of LED Mirror front lamp circuit.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1, a kind of LED Mirror front lamp circuit, comprises infrared sensor IC1, timer IC2, relay K and LED H, the power end VDD of described infrared sensor IC1 connects a stiff end of potentiometer RP1, the sliding end of potentiometer RP1, the collector electrode of triode V2, LED H, power supply VCC, the pin 4 of timer IC2 and the pin 8 of timer IC2, the output OUT of infrared sensor IC1 connects the base stage of the other end connection electric capacity C2 and triode V1 of electric capacity C1 and resistance R1, resistance R1, the collector electrode contact resistance R2 of triode V1, electric capacity C3, the pin 2 of timer IC2 and the pin 6 of timer IC2, the earth terminal GND of infrared sensor IC1 connects the other end of electric capacity C1, the other end of electric capacity C2, electric capacity C3, electric capacity C4, the anode of diode D1, resistance R3, relay K, the contact K-1 of relay K, the emitter of triode V1, the pin 1 of timer IC2, the pin 5 of timer IC2 connects the other end of electric capacity C4, the other end of another stiff end contact resistance R2 of potentiometer RP1, and the pin 3 of timer IC2 connects the negative electrode of diode D1, the other end of resistance R3 and the base stage of triode V2, the emitter of triode V2 connects the other end of relay K, the other end of LED group H connects the other end of the contact K-1 of relay K, and the model of described infrared sensor IC1 is TX05D, and the model of timer IC2 is NE555.

Resistance R3 is photo resistance.

Operation principle of the present utility model is: infrared sensor IC1 Triggerless during normal condition, timer IC2 does not work, its 3 pin output low level, triode V2 ends, relay is failure to actuate, chip IC 2, electric capacity C3 and resistance R2 forms delay circuit, its normally opened contact disconnects, LED group H does not work, when there being people to be in before mirror, infrared sensor IC1 receives the infrared signal of human body reflection, it goes out output OUT and exports high level signal, trigger triode V1 conducting, chip IC 2 is set, its output 3 pin exports high level, if now environmental light intensity is higher, the resistance of photo resistance R3 reduces by illumination resistance, therefore triode V2 not conducting, LED group H is not luminous, when environmental light intensity is lower, the resistance of resistance R3 increases, triode V2 conducting, relay K is energized, its normally opened contact K-1 adhesive, LED group H conducting is luminous, people leaves rear a period of time, H extinguishes.Circuit is by using infrared sensor as Based Intelligent Control element, just start-up circuit is understood when someone is before mirror, also be provided with light-operated original paper simultaneously, when only having environmental light brightness not enough, just can open LED, therefore have that cost is low, easy to use, the advantage of saves energy.

Claims

1. a LED Mirror front lamp circuit, comprises infrared sensor IC1, timer IC2, relay K and LED H, is characterized in that, the power end VDD of described infrared sensor IC1 connects a stiff end of potentiometer RP1, the sliding end of potentiometer RP1, the collector electrode of triode V2, LED H, power supply VCC, the pin 4 of timer IC2 and the pin 8 of timer IC2, the output OUT of infrared sensor IC1 connects the base stage of the other end connection electric capacity C2 and triode V1 of electric capacity C1 and resistance R1, resistance R1, the collector electrode contact resistance R2 of triode V1, electric capacity C3, the pin 2 of timer IC2 and the pin 6 of timer IC2, the earth terminal GND of infrared sensor IC1 connects the other end of electric capacity C1, the other end of electric capacity C2, electric capacity C3, electric capacity C4, the anode of diode D1, resistance R3, relay K, the contact K-1 of relay K, the emitter of triode V1, the pin 1 of timer IC2, the pin 5 of timer IC2 connects the other end of electric capacity C4, the other end of another stiff end contact resistance R2 of potentiometer RP1, and the pin 3 of timer IC2 connects the negative electrode of diode D1, the other end of resistance R3 and the base stage of triode V2, the emitter of triode V2 connects the other end of relay K, the other end of LED group H connects the other end of the contact K-1 of relay K, and the model of described infrared sensor IC1 is TX05D, and the model of timer IC2 is NE555.

2. a kind of LED Mirror front lamp circuit according to claim 1, it is characterized in that, described resistance R3 is photo resistance.