CN2648703Y

CN2648703Y - Multipoint controlling electronic switch

Info

Publication number: CN2648703Y
Application number: CN 03250153
Authority: CN
Inventors: 罗天伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-29
Filing date: 2003-08-29
Publication date: 2004-10-13
Anticipated expiration: 2013-08-29

Abstract

The utility model relates to a multipoint control electronic switch and is characterized in that a plurality of switches are connected in parallel in the same loop and controlled by an electronic circuit. A free trigger circuit, a switching detection circuit, a shutdown circuit, a rectifier circuit and a switch output circuit are connected in parallel with each other and form the electronic circuit. The utility model has the advantages of excellent performance, low cost, small power dissipation and multi-function. The multi-function means to realize the parallel connection and mutual control, multi-mode control, automatic replacement and close when power failure and poor circuit contact occur, small volume and secondary development. A special IC integrated circuit chip are made by the wiring process of the IC integrated circuit, therefore, the volume of the utility model is smaller, the manufacturing cost is lower and the manufacturing and assembly process is simpler. The circuit is so simple that the only need is to connect the needed switches in parallel with each other and connect the switches with the load in series. The repair and maintenance of the circuit and the field application are both convenient and no electric spark is generated when turning on and turning off. And none of the advantages can be attained by any present switch.

Description

Multiple spot control electronic switch

Technical field

The utility model relates to electronic switching technology, the electronic switch of multiple spot control specifically.

Background technology

Present most popular switch with mechanical contact, function singleness, control circuit even if adopt many multicontact switches can form multiple spot more, but its complex circuit, field wiring be loaded down with trivial details, expend wire rod, and mechanical contact utilizes seesaw and spring to directly act on external strength, be difficult to determine by observing the seesaw location status whether switch is closed and opened, and makes circuit be in the fuzzy control state, causes waste of electric energy because of unmanned off switch in the time of may causing the electrical network incoming call.Draw many ground control circuit that control line a plurality of buttons in parallel form or adopt IC to encode many ground of coding control circuit that integrated circuit bank becomes or the like based on the relay of present appearance, though can realize many ground controlled function, but there is the internal circuit complexity, cost height, components and parts volume are big, inconvenience is installed and defectives such as self power consumption is big, and it is very restricted in actual applications.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of simple in structure, can upgrade easily its control model of expansion, controlling or the many ground of the multi-mode multiple spot control electronic switch of controlled function mutually of realizing that a plurality of switch in parallel use again are provided manyly.

With the circuit of switch series connection in look different and existed the voltage no current between two contacts of on off state or no-voltage has change informations such as electric current, between all particular switch circuit in parallel, detect mutually, transmit the output state that the particular switch circuit is intervened in communication, after deliberation and facts have proved that this information can be used as the switch control information, by artificial direct control (or other control device operator scheme, as computer programming, remote control, regularly, light-operated, magnetic control, microwave etc.) this control information of mode producing, just the parallel connection of a plurality of particular switch circuit be can make, many ground control or multi-mode State Control function arbitrarily realized.The utility model adopts the electron controls technology cheaply of microampere order operating current to design this electronic switch.

The technical solution of the utility model is: a plurality of switches in parallel on same loop, by electronic circuit control, this electronic circuit composes in parallel by opening circuits for triggering, switch testing circuit, shut-off circuit, rectification circuit and switch output circuit.

Above-described unlatching circuits for triggering are by controllable silicon VS ₁With diode VD ₁～VD ₄Series connection, photoelectrical coupler IC _1-1Input and VD ₁～VD ₄Parallel connection, output and triode VT ₁Base stage, emitter, contact button SB ₁Parallel connection, VT ₁Collector electrode and VS ₁The control utmost point links resistance R ₁With VS ₁The control utmost point, a point connect resistance R ₂With VT ₁Base stage, a point link capacitor C ₁With VS ₁Control utmost point b point connects formation.

Above-described switch testing circuit and shut-off circuit are by controllable silicon VS ₂Anode, negative electrode are in parallel with a, b point, triode VT ₂Collector and emitter and VS ₂Control utmost point b point links resistance R ₄, diode DV ₅, resistance R ₃Series connection back and VT ₂Base stage links, capacitor C ₂With R ₄, the b point links capacitor C ₃With VS ₂The control utmost point, b point link resistance R ₅With contact button SB ₂Series connection back and VS ₂Control utmost point b point connects formation.

Above-described rectification circuit is by diode VD ₆Anode and diode VD ₈Negative electrode series connection back diode VD ₇Anode and diode VD ₉Negative electrode series connection back formation in parallel bridge rectifier.

Above-described switch output circuit is by bidirectional triode thyristor VS ₃Main electrode T ₁, T ₂In parallel with outlet line, capacitor C ₄, resistance R ₆With VS ₃The control utmost point links capacitor C ₅, resistance R ₇Series connection back formation in parallel with the outlet line of this switch.

Above-described function expansion interface circuit is by IC _1-1In resistance of another output series connection constitute.

Above-described function expansion interface circuit increases resistance of common optoelectronic coupler input series connection, 2 formations in parallel of output and e, o by other.

Above-described function expansion down interface circuit increases a photo thyristor output type photoelectrical coupler at a, c point-to-point transmission, resistance of input series connection, and output connects formation with a, c at 2.

Above-described function is expanded the down interface circuit at a, photoelectrical coupler of c point-to-point transmission, resistance of its input series connection, output and triode VT ₃Base stage and b point are in parallel, resistance R ₈With VT ₃Base stage and a point link R ₅Direct and 2 of a, d link VT ₃Collector electrode connects formation with the d point.

The utility model compared with prior art has the following advantages: high-performance, low-cost, little power consumption, multi-functional-as to realize cross complaint in parallel, multi-mode control, have a power failure or automatically reset during the circuit loose contact and close etc., volume is little, but secondary development-make the application-specific integrated circuit integrated circuit (IC) chip by the IC process for integrated circuit wiring, make volume littler, production cost is lower, production and assembly technology is oversimplified, and circuit is simple only to be needed get final product connect with load after the switch in parallel of requirement, and convenience is protected in the on-the-spot use of line maintenance peacekeeping, do not have electric spark etc. during opening and closing, present any switch can't be accomplished.

Description of drawings

Fig. 1 is that multipoint control switch of the present utility model connects schematic diagram;

Fig. 2 is that multipoint control switch of the present utility model connects schematic diagram with manual control automatically;

Fig. 3 is an electronic circuit schematic diagram of the present utility model;

Fig. 4,5 is a function expansion interface circuit schematic diagram of the present utility model;

Fig. 6,7 is function expansion down interface circuit theory diagrams of the present utility model;

Fig. 8 is a multipoint control switch profile schematic diagram of the present utility model.

Embodiment

Embodiment:

As shown in Figure 1, 2, 3, multiple spot control electronic switch of the present utility model is to be a plurality of switches in parallel on same loop, by electronic circuit control, this electronic circuit is by opening circuits for triggering, switch testing circuit, closing shunt circuit, rectification circuit and switch output circuit and compose in parallel.

Wherein, open circuits for triggering by controllable silicon VS ₁With diode VD ₁～VD ₄Series connection, photoelectrical coupler IC _1-1Input and VD ₁～VD ₄Parallel connection, output and triode VT ₁Base stage, emitter, contact button SB ₁Parallel connection, VT ₁Collector electrode and VS ₁The control utmost point links resistance R ₁With VS ₁The control utmost point, a point connect resistance R ₂With VT ₁Base stage, a point link capacitor C ₁With VS ₁Control utmost point b point connects formation.Switch testing circuit and shut-off circuit are by controllable silicon VS ₂Anode, negative electrode are in parallel with a, b point, triode VT ₂Collector and emitter and VS ₂Control utmost point b point links resistance R ₄, diode DV ₅, resistance R ₃Series connection back and VT ₂Base stage links, capacitor C ₂With R ₄, the b point links capacitor C ₃With VS ₂The control utmost point, b point link resistance R ₅With contact button SB ₂Series connection back and VS ₂Control utmost point b point connects formation.Rectification circuit is by diode VD ₆Anode and diode VD ₈Negative electrode series connection back and diode VD ₇Anode and diode VD ₉Negative electrode series connection back formation in parallel bridge rectifier.The switch output circuit is by bidirectional triode thyristor VS ₃Main electrode T ₁, T ₂In parallel with outlet line, capacitor C ₄, resistance R ₆With VS ₃The control utmost point links capacitor C ₅, resistance R ₇Series connection back formation in parallel with the outlet line of this switch.The function expansion is opened interface circuit by IC _1-1In resistance of another output series connection constitute.Interface circuit is opened in the function expansion increases resistance of common optoelectronic coupler input series connection, 2 formations in parallel of output and e, o by other.Function expansion down interface circuit increases a photo thyristor output type photoelectrical coupler at a, c point-to-point transmission, resistance of input series connection, and output connects formation with a, c at 2.Function is expanded the down interface circuit at a, photoelectrical coupler of c point-to-point transmission, resistance of its input series connection, output and triode VT ₃Base stage and b point are in parallel, resistance R ₈With VT ₃Base stage and a point link R ₅Direct and 2 of a, d link VT ₃Collector electrode connects formation with the d point.

When need are expanded its control model, utilize function expansion unlatching, down interface circuit, shown in Fig. 4,5,6,7.

Operation principle: the VS that opens circuits for triggering ₁, IC _1-1, VT ₁Form mutual Quality Initiative, SB ₁After the connection, TV ₁End VS ₁Conducting, IC _1-1Must be electric, V is luminous, the R value has replaced SB from large to small ₁, make VT ₁Continue remain off, the circuits for triggering electric current after the conducting is through VD ₆～VD ₉Make VS ₃After the triggering and conducting, make load get electric work, switch open, line voltage distribution reduces significantly, TV ₂End, connect SB this moment ₂, VS ₂The conducting shunting makes VS ₁Electric current is almost nil, IC _1-1Dead electricity, V extinguishes, the R value is changed from small to big, TV ₁Conducting, VS ₁By turn-offing.Disconnect SB ₂, VS ₂By turn-offing, a, b end electric current reduces, and voltage raises, VT ₂Conducting, VS ₃Produce by turn-offing, switch cuts out.When many switch in parallel control, if switch 1 conducting, VS in the switch 2 ₂The conducting shunt current by VS ₃Make switch 1 open the circuits for triggering holding current after conducting is amplified, reset, thereby realized the interactive control of many switch in parallel by shutoff.

This circuit can be had a secondary development space, is made into the application-specific integrated circuit integrated circuit (IC) chip by the IC integrated circuit wiring, thereby production cost is significantly reduced.

When switch of the present utility model is used for the lamp control of public aisle, can cooperate control appliance that electric light is opened automatically at rush hour, the peak period is closed later automatically, is beneficial to economize on electricity; When the someone passes through the aisle temporarily, can be easily at switch open arbitrarily with close electric light.

Switch of the present utility model is used for the domestic lighting circuit, can form multiple spot control easily, removed from regular tap in the past can only be on single control point the trouble of opening and closing electric light.

Claims

1, a kind of multiple spot control electronic switch is characterized in that a plurality of switches in parallel on same loop, and by electronic circuit control, this electronic circuit composes in parallel by opening circuits for triggering, switch testing circuit and shut-off circuit, rectification circuit and switch output circuit.

2, multiple spot control electronic switch according to claim 1 is characterized in that opening circuits for triggering by controllable silicon VS ₁With diode VD ₁～VD ₄Series connection, photoelectrical coupler IC _1-1Input and VD ₁～VD ₄Parallel connection, output and triode VT ₁Base stage, emitter, contact button SB ₁Parallel connection, VT ₁Collector electrode and VS ₁The control utmost point links resistance R ₁With VS ₁The control utmost point, a point connect resistance R ₂With VT ₁Base stage, a point link capacitor C ₁With VS ₁Control utmost point b point connects formation.

3, multiple spot control electronic switch according to claim 1 is characterized in that switch testing circuit and shut-off circuit are by controllable silicon VS ₂Anode, negative electrode are in parallel with a, b point, triode VT ₂Collector and emitter and VS ₂Control utmost point b point links resistance R ₄, diode DV ₅, resistance R ₃Series connection back and VT ₂Base stage links, capacitor C ₂With R ₄, the b point links capacitor C ₃With VS ₂The control utmost point, b point link resistance R ₅With contact button SB ₂Series connection back and VS ₂Control utmost point b point connects formation.

4, multiple spot control electronic switch according to claim 1 is characterized in that rectification circuit is by diode VD ₆Anode and diode VD ₈Negative electrode series connection back diode VD ₇Anode and diode VD ₉Negative electrode series connection series connection back formation in parallel bridge rectifier.

5, multiple spot control electronic switch according to claim 1 is characterized in that the switch output circuit is by bidirectional triode thyristor VS ₃Main electrode T ₁, T ₂In parallel with outlet line, capacitor C ₄, resistance R ₆With VS ₃The control utmost point links capacitor C ₅, resistance R ₇Series connection back formation in parallel with the outlet line of this switch.

6, multiple spot control electronic switch according to claim 1 is characterized in that the function expansion interface circuit is by IC _1-1In resistance of another output series connection constitute.

7, multiple spot control electronic switch according to claim 1 is characterized in that the function expansion interface circuit increases resistance of common optoelectronic coupler input series connection, 2 formations in parallel of output and e, o by other.

8, multiple spot control electronic switch according to claim 1, it is characterized in that function expansion down interface circuit increases a photo thyristor output type photoelectrical coupler at a, c point-to-point transmission, resistance of input series connection, output connects formation with a, c at 2.

9, multiple spot control electronic switch according to claim 1 is characterized in that function expansion down interface circuit at a, photoelectrical coupler of c point-to-point transmission, resistance of its input series connection, output and triode VT ₃Base stage and b point are in parallel, resistance R ₈With VT ₃Base stage and a point link R ₅Direct and 2 of a, d link VT ₃Collector electrode connects formation with the d point.