CN101888732A

CN101888732A - Illumination time-delay switch produced by using common button switch

Info

Publication number: CN101888732A
Application number: CN2010101577319A
Authority: CN
Inventors: 周玉林
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-28
Filing date: 2010-04-28
Publication date: 2010-11-17

Abstract

The invention belongs to a novel electronic device for controlling time delay by using a silicon controlled trigger circuit. The novel electronic device consists of a commercial power bridge rectifier circuit, the silicon controlled trigger circuit and a time-delay control circuit. In the time-delay circuit, a trigger current of controlled silicon is formed by commercial power through rectification and charging and discharging of an electrolytic capacitor, so that the time-delay circuit controls the switch-on and switch-off of the unidirectional controlled silicon to realize turn-on or turn-off of an incandescent lamp. At ordinary times, the controlled silicon in a time-delay switch is in a switch-off state, so the circuit basically does not consume electricity. Compared with the conventional time-delay switch in the market, the time-delay switch of the invention has the characteristics of simple structure of the time-delay circuit, small using amount of components, reliable circuit performance, low production and development costs, convenient use and the like. Moreover, the illumination time-delay switch also has small volume, can be integrated in a 86-type standard wall switch panel, is suitable for illumination time-delay control of various incandescent lamps in household or public places and has obvious effect of saving electricity during use.

Description

Make illumination time-delay with the conventional push button switch

Technical field

The invention belongs to electronic technology and economize on electricity field, relate to a kind of with conventional push button switch making illumination time-delay.

Background technology

At present, integrated package was connected into delay circuit when common illumination delay circuit adopted 555 bases more, promoted relay adhesive or release then, the bright incandescent lamp in control point; Also have a variety ofly to be overlapped to form delay circuit, light incandescent lamp by control one-way SCR or bidirectional triode thyristor with discrete component.

Many, the circuit more complicated of components and parts that the various finished product ubiquities in market use, and then be accompanied by the more high fact of fault rate, also there are problems such as cost of manufacture height.

To have the deficiency of finished product on the market now and have many defectives in order to overcome, be necessary to study a kind of simple and direct delay circuit, few, the reliable production program of circuit working of components and parts consumption.

Summary of the invention

Goal of the invention:, have characteristics such as the delay circuit structure is simple and direct, the components and parts consumption is few, circuit performance reliable, the making development cost is low, easy to use with existing delay switch comparison on the market.

Technical scheme: delay switch of the present invention belongs to electronic switching device, is the circuit that a kind of novel controllable silicon triggers the control time-delay.Form by city's bridge rectifier circuit, thyristor gating circuit, delay control circuit and load (incandescent lamp).Circuits for triggering are by being formed by the charge and discharge of electrochemical capacitor after the civil power step-down, are controlling the conducting of one-way SCR or end, and realize that incandescent lamp lights or extinguish.This at ordinary times illumination time-delay controllable silicon is in cut-off state, thereby not power consumption basically.

Beneficial effect: it is little that illumination time-delay has a volume, can design and be integrated among the 86 type electrical standard panels, be applicable to the various incandescent lightings time-delay controls of house or public place, illumination time-delay has tangible power savings, and promoting, popularize use has big meaning.

Description of drawings

Accompanying drawing is to make illumination time-delay circuit working schematic diagram with the conventional push button switch.

D1～the D4 of bridge rectifier is a silicon rectifier diode in the accompanying drawing.

Embodiment

Accompanying drawing and description of drawings to specifications are further described correlation technique of the present invention with the following Examples below.

Technical scheme: delay switch of the present invention belongs to electronic switching device, is that a kind of novel controllable silicon triggers the control delay circuit.Form by commercial power rectification circuit, thyristor gating circuit, delay circuit load (incandescent lamp).Circuits for triggering form the silicon controlled trigger current by the charge and discharge of civil power by electrochemical capacitor, are controlling the conducting of one-way SCR or end, and the realization incandescent lamp is lighted or extinguished.This at ordinary times illumination time-delay controllable silicon is in cut-off state, thereby not power consumption basically.

Operation principle: when key switch AN was in disconnection, one-way SCR T was because control utmost point triggerless electric current, and controllable silicon T is in not conducting, and incandescent lamp H no current extinguishes state by being.When needing incandescent lamp H to light, as long as click key switch AN, civil power is through the control utmost point of incandescent lamp H, full bridge rectifier D1～D4, resistance R 1, R2, silicon rectifier diode D5 and one-way SCR T, and T provides trigger current to one-way SCR, makes the bright incandescent lamp H of controllable silicon T firing point.Meanwhile, electrochemical capacitor C1 discharges up to discharge off through R2.

After unclamping key switch AN, power supply is given electrochemical capacitor C1 charging through resistance R 2, rectifier diode D5, and charging current provides trigger current to the control utmost point of controllable silicon T, makes that controllable silicon T continues to keep conducting, and incandescent lamp H maintainings lights.Along with reducing of charging current, after after a while, controllable silicon T loses trigger current and makes incandescent lamp H outage and extinguish.

Make interelement annexation in the illumination time-delay circuit with the conventional push button switch

1. making illumination time-delay with the conventional push button switch is made up of commercial power rectification circuit, thyristor gating circuit, delay circuit.Delay circuit forms the silicon controlled trigger current by the charge and discharge of civil power by electrochemical capacitor, is controlling the conducting of one-way SCR or ends, and the realization incandescent lamp is lighted or extinguished.

2. ((the alternating current input of D1～D4) connects (L) end of civil power live wire, (N) end of another termination civil power zero line of bridge circuit alternating current input through incandescent lamp (H) to bridge rectifier for D1～D4).

3. the dc output end positive pole of bridge rectifier joins with an end of resistance R 1, the positive pole of electrochemical capacitor C1, the anode of controllable silicon T respectively, and the dc output end negative pole connects the negative electrode of controllable silicon T.

4. the circuits for triggering of controllable silicon T are made up of R1, AN, C1, R2, D5, the right-hand member of R1 connects the left end of key switch AN, the other end of AN connects the negative pole of electrochemical capacitor C1, the upper end of step-down current-limiting resistance R2 respectively, the positive pole of another termination silicon rectifier diode D5 of R2, the D5 negative pole connects the control utmost point of controllable silicon T.

Components and parts are selected: D1～D5 is a silicon rectifier diode in the circuit, and model is 1N4007, and parameter is 1A/1000V; It is BTA plastic packaging one-way SCR that T selects packing forms for use, and parameter is 1A/400V; It is that 1W, resistance are 1K Ω that resistance R 1 is selected RJ type, power for use; It is that 0.5W, resistance are 16K Ω that R2 selects RJ type, power for use; The parameter of electrochemical capacitor C1 is 20 μ F/300V; Power≤60W of incandescent lamp H.Circuit is made according to the parameter of above-mentioned components and parts, and the incandescent lamp H time of lighting is about 45～55 seconds.

Circuit debugging: in circuit debugging, if behind the switch AN that pushes button, incandescent lamp H can not be lighted, and should suitably reduce the resistance of resistance R 1.The length of delay time is by the decision of the numerical value of C1 or R2, and C1, R2 numerical value are big more, and the time of time-delay is just long more.

Claims

1. make illumination time-delay with the conventional push button switch and form for one kind by commercial power rectification circuit, thyristor gating circuit, delay circuit and load (incandescent lamp), it is characterized in that controlling the trigger current of controllable silicon conducting, is by being formed by the charge and discharge of electrochemical capacitor after the civil power step-down.

2. illumination time-delay circuit according to claim 1 is characterized in that (the alternating current input of D1～D4) connects (L) end of civil power live wire through incandescent lamp (H) to bridge rectifier, and the bridge circuit alternating current is imported (N) end of another termination civil power zero line.

3. illumination time-delay circuit according to claim 1, the positive pole that it is characterized in that the bridge rectifier dc output end joins with the left end of resistance (R1), the positive pole of electrochemical capacitor (C1), the anode of controllable silicon (T) respectively, and the negative pole of dc output end connects the negative electrode of controllable silicon T.

4. illumination time-delay circuit according to claim 1, the circuits for triggering that it is characterized in that controllable silicon (T) are made up of resistance (R1), key switch (AN), electrochemical capacitor (C1), step-down current-limiting resistance (R2), silicon rectifier diode (D5), the right-hand member of R1 connects the left end of AN, the other end of AN connects the negative pole of C1, the upper end of R2 respectively, the positive pole of another termination D5 of R2, the D5 negative pole connects the control utmost point of controllable silicon T.