CN205546136U

CN205546136U - Desk lamp that can intelligently open and close

Info

Publication number: CN205546136U
Application number: CN201620092832.5U
Authority: CN
Inventors: 林丹红
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-31
Filing date: 2016-01-31
Publication date: 2016-08-31
Anticipated expiration: 2026-01-31

Abstract

The utility model discloses a desk lamp that can intelligently open and close, including electric capacity C1, electric capacity C4, diode D1, triode VT1, triode VT2, double base diode VS and bidirectional thyristor VT4, the 220V alternating current is connected respectively to electric capacity C4 one end, resistance R8 and bulb EL, it is anodal that diode D1 is connected respectively to the electric capacity C4 other end, the resistance R8 other end and diode D2 negative pole, diode D1 negative pole is connecting resistance R4 respectively, resistance R5, potentiometre RP1, potentiometre RP1 gleitbretter, potentiometre RP2, potentiometre RP2 gleitbretter, resistance R1, diode D3 negative pole and electric capacity C1, triode VT3 collecting electrode is connected to the resistance R5 other end. The utility model discloses desk lamp that can intelligently open and close has the process of gradual change when opening and closing, for traditional desk lamp, can satisfy more people's demand, and circuit structure is simple, and is with low costs, small, and market competition is strong.

Description

A kind of can intelligent opening and the desk lamp of closedown

Technical field

The utility model relates to a kind of desk lamp, a kind of can intelligent opening and the desk lamp of closedown.

Background technology

Modern society, people more and more use computer, but a lot of people's electricity consumption gyrus forgets and turns on light, but in the environment of dim, so have the biggest injury for eyes.

Desk lamp has become one of requisite device of modern house, desk lamp kind is the most various currently on the market, traditional light fixture, power supply, once cut off, extinguishes at once, a lot of occasions in our daily life bring inconvenience to us, such as, and the 1. light fixture of the entry door of house, once turn off the light the when that owner being away from home, cannot be illuminated when then locking a door；2. when bedroom air-conditioning uses, general door is to close, and last leaves the people in parlor once close the light fixture in parlor, the most as dark as a stack of black cats, it is impossible to obtain coming into the illumination of this time in a moment of bedroom；3. in the moment turned on light, by dark environment moment become the brightest, the stimulation to eyes is the biggest.

Utility model content

The purpose of this utility model be to provide a kind of can intelligent opening and the desk lamp of closedown, with the problem solving to propose in above-mentioned background technology.

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

nullA kind of can intelligent opening and the desk lamp of closedown，Including electric capacity C1、Electric capacity C4、Diode D1、Triode VT1、Triode VT2、Double base diode VS and bidirectional triode thyristor VT4，Described electric capacity C4 one end connects 220V alternating current respectively、Resistance R8 and bulb EL，The electric capacity C4 other end connects diode D1 positive pole respectively、The resistance R8 other end and diode D2 negative pole，Diode D1 negative pole connects resistance R4 respectively、Resistance R5、Potentiometer RP1、Potentiometer RP1 slide plate、Potentiometer RP2、Potentiometer RP2 slide plate、Resistance R1、Diode D3 negative pole and electric capacity C1，Resistance R5 other end connecting triode VT3 colelctor electrode，Triode VT3 emitter stage connects the G pole of bidirectional triode thyristor VT4，The T1 pole of bidirectional triode thyristor VT4 the connection bulb EL other end and electric capacity C5 respectively，The electric capacity C5 other end connects resistance R9，Described triode VT3 pole connects first base stage of resistance R6 and double base diode VS respectively，Second base stage of double base diode VS connects the resistance R4 other end，The emitter stage of double base diode connects electric capacity C3 and triode VT2 colelctor electrode respectively，Triode VT2 emitter stage connects the potentiometer RP1 other end，Triode VT2 base stage connects the potentiometer RP1 other end and triode VT1 colelctor electrode respectively，Triode VT1 base stage connects resistance R2，The resistance R2 other end connects electric capacity C2 and switch S respectively，The switch S other end connects the resistance R1 other end，The electric capacity C2 other end connects the electric capacity C1 other end respectively、Diode D3 positive pole、Triode VT1 emitter stage、The electric capacity C3 other end、The resistance R6 other end、The T2 pole of bidirectional triode thyristor VT4、Diode D2 positive pole、The resistance R9 other end and the 220V alternating current other end.

As the utility model further scheme: described diode D3 is Zener diode.

Compared with prior art, the beneficial effects of the utility model are: the utility model the desk lamp of intelligent opening and closedown can have the process of a gradual change opening and closing when, relative to traditional desk lamp, more Man's Demands can be met, circuit structure is simple, low cost, volume is little, and the market competitiveness is strong.

Accompanying drawing explanation

Fig. 1 is can the circuit diagram of desk lamp of intelligent opening and closedown.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the utility model rather than whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of the utility model protection.

nullRefer to Fig. 1，In the utility model embodiment，A kind of can intelligent opening and the desk lamp of closedown，Including electric capacity C1、Electric capacity C4、Diode D1、Triode VT1、Triode VT2、Double base diode VS and bidirectional triode thyristor VT4，Described electric capacity C4 one end connects 220V alternating current respectively、Resistance R8 and bulb EL，The electric capacity C4 other end connects diode D1 positive pole respectively、The resistance R8 other end and diode D2 negative pole，Diode D1 negative pole connects resistance R4 respectively、Resistance R5、Potentiometer RP1、Potentiometer RP1 slide plate、Potentiometer RP2、Potentiometer RP2 slide plate、Resistance R1、Diode D3 negative pole and electric capacity C1，Resistance R5 other end connecting triode VT3 colelctor electrode，Triode VT3 emitter stage connects the G pole of bidirectional triode thyristor VT4，The T1 pole of bidirectional triode thyristor VT4 the connection bulb EL other end and electric capacity C5 respectively，The electric capacity C5 other end connects resistance R9，Described triode VT3 pole connects first base stage of resistance R6 and double base diode VS respectively，Second base stage of double base diode VS connects the resistance R4 other end，The emitter stage of double base diode connects electric capacity C3 and triode VT2 colelctor electrode respectively，Triode VT2 emitter stage connects the potentiometer RP1 other end，Triode VT2 base stage connects the potentiometer RP1 other end and triode VT1 colelctor electrode respectively，Triode VT1 base stage connects resistance R2，The resistance R2 other end connects electric capacity C2 and switch S respectively，The switch S other end connects the resistance R1 other end，The electric capacity C2 other end connects the electric capacity C1 other end respectively、Diode D3 positive pole、Triode VT1 emitter stage、The electric capacity C3 other end、The resistance R6 other end、The T2 pole of bidirectional triode thyristor VT4、Diode D2 positive pole、The resistance R9 other end and the 220V alternating current other end；Described diode D3 is Zener diode.

Operation principle of the present utility model is: refer to Fig. 1,220V alternating current is depressured through C4, D1 and D2 rectification, 12V stable DC voltage is exported for control circuit after D3 voltage stabilizing and C1 filtering, double base diode VS constitutes oscillator and is used for encouraging bidirectional triode thyristor VT4, its frequency of oscillation is determined by the collector current of VT2, and on the one hand this electric current is controlled by potentiometer RP2, is on the other hand controlled by VT1 collector potential again.

When after switch S Guan Bi, C2 starts to charge up through R1, C2 both end voltage is gradually increasing, VT1 just by cut-off state gradually transfer magnifying state to, its collector potential progressively declines, so that VT2 base current is gradually increased, also becomes larger the charging current of electric capacity C3, thus making the frequency of oscillation of VS be gradually increased from low to high, bulb EL is by secretly brightening；When C2 both end voltage rises to make VT1 saturation conduction, the collector current of VT2 is no longer controlled by VT1, and only by RP2 control, at this moment regulation RP2 can carry out continuous light tuning to bulb EL, here it is the brightening process turned on light.

When disconnecting S, C2 is discharged by R2 and VT1 emitter junction, and its terminal voltage progressively declines, VT1 the most just by original saturation state to magnifying state transition, at this moment VT2 collector current is declined by VT1 control again, causes VS frequency of oscillation progressively to decline, because making light the most dimmed by the brightness originally set, when VT1 is completely switched off, VT2 is because being also switched off without base bias, so that VS failure of oscillation, VT4 turns off, EL extinguishes, here it is the dimming process turned off the light.

It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize the utility model in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in the utility model.Should not be considered as limiting involved claim by any reference in claim.

In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of specification is only for clarity sake, specification should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.

Claims

null1. one kind can intelligent opening and the desk lamp of closedown，Including electric capacity C1、Electric capacity C4、Diode D1、Triode VT1、Triode VT2、Double base diode VS and bidirectional triode thyristor VT4，It is characterized in that，Described electric capacity C4 one end connects 220V alternating current respectively、Resistance R8 and bulb EL，The electric capacity C4 other end connects diode D1 positive pole respectively、The resistance R8 other end and diode D2 negative pole，Diode D1 negative pole connects resistance R4 respectively、Resistance R5、Potentiometer RP1、Potentiometer RP1 slide plate、Potentiometer RP2、Potentiometer RP2 slide plate、Resistance R1、Diode D3 negative pole and electric capacity C1，Resistance R5 other end connecting triode VT3 colelctor electrode，Triode VT3 emitter stage connects the G pole of bidirectional triode thyristor VT4，The T1 pole of bidirectional triode thyristor VT4 the connection bulb EL other end and electric capacity C5 respectively，The electric capacity C5 other end connects resistance R9，Described triode VT3 pole connects first base stage of resistance R6 and double base diode VS respectively，Second base stage of double base diode VS connects the resistance R4 other end，The emitter stage of double base diode connects electric capacity C3 and triode VT2 colelctor electrode respectively，Triode VT2 emitter stage connects the potentiometer RP1 other end，Triode VT2 base stage connects the potentiometer RP1 other end and triode VT1 colelctor electrode respectively，Triode VT1 base stage connects resistance R2，The resistance R2 other end connects electric capacity C2 and switch S respectively，The switch S other end connects the resistance R1 other end，The electric capacity C2 other end connects the electric capacity C1 other end respectively、Diode D3 positive pole、Triode VT1 emitter stage、The electric capacity C3 other end、The resistance R6 other end、The T2 pole of bidirectional triode thyristor VT4、Diode D2 positive pole、The resistance R9 other end and the 220V alternating current other end.
The most according to claim 1 can intelligent opening and the desk lamp of closedown, it is characterised in that described diode D3 is Zener diode.