CN205681677U - A kind of single live wire switch how controlling - Google Patents

Abstract

A kind of single live wire switch how controlling, including single live wire unit, holding unit, anti-interference unit and many ground switch element, can realize at unlimited multi-class traffics illuminating lamp or other electric equipments.Described single live wire switch allows width to pass through more than the normal operating pulse signal of setting, the positive burst pulse during broad pulse and the negative burst pulse during positive broad pulse are born in automatic fitration, particularly quick-recovery filter capacity the positive burst pulse of continuous print or negative narrow pulse interference signal be can filter soon, rising edge shake and the trailing edge shake of switching pulse eliminated；The positive burst pulse filtering and negative burst pulse Breadth Maximum is needed to be adjusted by changing charge constant and discharge time constant respectively.Described single live wire switch can be as the substitute products of regular tap.

Description

A kind of single live wire switch how controlling

Technical field

The utility model relates to the control switch of a kind of electric equipment, especially a kind of single live wire switch how controlling.

Background technology

When requiring to carry out how controlling to lamp or other electrical equipment, at present conventional method one be use double control switch and Double-point double-throw switch, field connection is complicated；Two is to use intelligent switch, and cost is high, and the MCU within intelligent switch is easily subject to Various interference effects, easily there is uncontrolled misoperation in switch.

Content of the invention

In order to solve the problem that the existing single live wire how controlling switch exists, the utility model provides one and controls manyly Single live wire switch of system, including single live wire unit, holding unit, anti-interference unit and many ground switch element.

Described single live wire unit includes single live wire power getting module and single live wire break-make control module, is provided with single live wire input End, single fire wire output end, single live wire break-make control signal input and DC supply output；Described single live wire break-make control Molding block is made up of bidirectional thyristor on-off circuit；Described single live wire break-make control signal is the trigger of bidirectional thyristor.

Described holding unit is provided with single live wire break-make control signal output and control pulse input end；Described single live wire Break-make control signal output is connected to single live wire break-make control signal input.

Described anti-interference unit is provided with control pulse output end and switching pulse input；Described control pulse output end is even It is connected to control pulse input end.

Described many ground switch element is provided with switching pulse output, and described switching pulse output is connected to switching pulse Input.

Described single live wire power getting module is to single live wire break-make control module and many ground switch element, holding unit, anti-interference Unit provides DC supply；The ground end of described DC supply is for single live wire break-make control module and how to switch list Unit, holding unit, anti-interference unit are publicly.

Described many ground switch element includes the self-resetting switch of 1 and 1 more parallel, output switch pulse.

Described anti-interference unit includes forward anti-jamming circuit, reverse anti-jamming circuit, data selector；Described forward is anti-dry Disturb circuit and the input signal of reverse anti-jamming circuit is switching pulse；Described data selector is alternative data selector； Two data input pins of described data selector are respectively connecting to forward anti-jamming circuit and the output of reverse anti-jamming circuit End；The data output end of described data selector is control pulse ends；The selection control end of described data selector is connected to control Pulse processed.

Described forward anti-jamming circuit includes that repid discharge diode, charging resistor, forward anti-interference capacitor, forward are anti-dry Disturb Schmidt circuit；Described repid discharge diode cathode is forward anti-jamming circuit input, and it is anti-dry that anode is connected to forward Disturb Schmidt circuit input；Described charging resistor and repid discharge diodes in parallel；One end of described forward anti-interference capacitor Being connected to forward anti-interference Schmidt circuit input, other end is connected to publicly or DC supply.

Described reverse anti-jamming circuit includes that quick charge diode, discharge resistance, reverse anti-interference capacitor, reverse resisting do Disturb Schmidt circuit；Described quick charge diode anode is reverse anti-jamming circuit input, and negative electrode is connected to reversely anti-dry Disturb Schmidt circuit input；Described discharge resistance and quick charge diodes in parallel；One end of described reverse anti-interference capacitor Being connected to reverse anti-interference Schmidt circuit input, other end is connected to publicly or DC supply.

Described forward anti-interference Schmidt circuit output is forward anti-jamming circuit output, reverse anti-interference Schmidt Circuit output end is reverse anti-jamming circuit output.

The beneficial effects of the utility model are: the described single live wire switch how controlling can realize at unlimited multi-class traffics Illuminating lamp or other electric equipments；Allow width normal self-resetting switch pulse to pass through, automatic fitration can bear broad pulse The high frequency because of long transmission line generation during his ground control is done by the negative narrow pulse interference during the positive burst pulse of period and positive broad pulse Disturb pulse to filter；Quick-recovery filter capacity filtration continuous print positive narrow pulse interference signal and continuous print can bear narrow pulse interference soon Signal, eliminates rising edge shake and the trailing edge shake of switching pulse；Regular tap can be substituted.

Brief description

Fig. 1 is the single live wire Switching embodiments structure chart how controlling；

Fig. 2 is single live wire unit embodiment circuit；

Fig. 3 is many ground switch element embodiment circuit；

Fig. 4 is anti-interference unit embodiment；

Fig. 5 is the waveform of anti-interference unit embodiment.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

It is illustrated in figure 1 the single live wire Switching embodiments structure chart how controlling, including single live wire unit the 10th, holding unit 20th, anti-interference unit 30 and many ground switch element 40.

The switching pulse P1 of many ground switch element output is sent to anti-interference unit, and switching pulse P1 is resisted by anti-interference unit After interference is processed, the control pulse M1 of output is sent to holding unit, and control pulse is carried out triggering and state guarantor by holding unit After holding process, single live wire break-make control signal G1 of output is sent to single live wire unit.

Described single live wire unit includes single live wire power getting module and single live wire break-make control module, is provided with single live wire input End AC, single fire wire output end AC1, single live wire break-make control signal input G1 and DC supply output+VCC.Dan Huo Line electricity-fetching module has single live wire ON state current-taking function and OFF state current-taking function, for single live wire break-make control module and many Ground switch element, holding unit, anti-interference unit provide DC supply.The ground end of DC supply is single live wire break-make control Molding block and many ground switch element, holding unit, anti-interference unit are publicly.

Single live wire break-make control module is made up of bidirectional thyristor and triggering drive circuit thereof, and bidirectional thyristor is by single live wire Single live wire break-make control signal control of break-make control signal input input.

It is illustrated in figure 2 the circuit of single live wire unit embodiment.Single live wire power getting module include single live wire voltage-stablizer U01 and Its peripheral cell diode D51, electric capacity C01, electric capacity C02, inductance L01, inductance L02, and low-dropout regulator U02 and outer Enclose component capacitance C03, electric capacity C04.In single live wire unit embodiment, the model of single live wire voltage-stablizer U01 is MP-6V-02S, low The model of pressure reduction voltage-stablizer U02 is HT7350.

Single live wire input AC is the simulation ground AGND of single live wire unit, is connected to the alternating current of single live wire voltage-stablizer U01 Pressure common port COM；The two ends of electric capacity C01 are respectively connecting to filter capacitor input FIL and the alternating current of single live wire voltage-stablizer U01 Pressure common port COM；The VD ground GND end of single live wire voltage-stablizer U01 for single live wire unit publicly, inductance L02 Two ends be respectively connecting to single live wire unit publicly with simulation ground；Diode D51, inductance L01 and electric capacity C02 composition half-wave Current rectifying and wave filtering circuit, the input of halfwave rectifier filter circuit is connected to single fire wire output end AC1 by diode D51, and output connects High direct voltage input HDC to single live wire voltage-stablizer U01.Single live wire voltage-stablizer U01 be additionally provided with DC voltage output end VCC, Alternating current pressure side AC.

The input VIN of low-dropout regulator U02 is connected to the DC voltage output end VCC of single live wire voltage-stablizer U01, The DC voltage output end output DC voltage+VCC1 of U01；The direct current work of low-dropout regulator U02 output VOUT output+5V Make power supply+VCC；The ground end GND of single live wire voltage-stablizer U01 is connected to single live wire unit publicly；Electric capacity C03, electric capacity C04 divide Wei the input voltage of low-dropout regulator U02, output voltage filter capacitor.

Single live wire break-make control module of single live wire unit embodiment is bidirectional thyristor on-off circuit, by single live wire break-make The break-make of control signal G1 control bidirectional thyristor, including bidirectional thyristor V51, controllable silicon output optocoupler U51, resistance R51, electricity Resistance R52, resistance R53.Controllable silicon output optocoupler U51 is phase shift type, and in single live wire unit embodiment, model is MOC3053.

Two anode taps of bidirectional thyristor V51 are respectively connecting to single fire wire output end AC1 and single live wire voltage-stablizer U01's Alternating current pressure side AC；Resistance R51 is connected in parallel on two anode taps of bidirectional thyristor V51；The output of controllable silicon output optocoupler U51 can Control silicon is connected with resistance R52, and its series arm is connected to the first anode and the control pole of bidirectional thyristor V51；Controllable silicon exports The input light emitting diode of optocoupler U51 is connected with resistance R53, and its series arm one end is connected to DC supply+VCC, separately Outer one end is single live wire break-make control signal input G1.When single live wire break-make control signal G1 is low level, bidirectional thyristor V51 turns on, and the 1st way switch is ON state；When single live wire break-make control signal G1 is high level, bidirectional thyristor V51 ends, and the 1st Way switch is OFF state.

In Fig. 2, when bidirectional thyristor V51 ends, filter through diode D51 halfwave rectifier and inductance L01, electric capacity C02 After, the DC voltage obtaining more than 300V delivers to the high direct voltage input HDC of single live wire voltage-stablizer U01, single live wire voltage-stablizer U01 exports DC voltage+VCC1 after DC/DC, it is achieved OFF state power taking.When bidirectional thyristor V51 turns on, load current via Alternating current pressure side AC of single live wire voltage-stablizer U01 and alternating voltage common port COM conducting, single live wire voltage-stablizer U01 is by load Electric current carries out power taking, it is achieved ON state power taking, and electric capacity C01 is ON state power taking filter capacitor.Single live wire voltage-stablizer U01 ON state power taking is defeated DC voltage+the VCC1 going out is relevant with bearing power, i.e. power bigger output DC voltage+VCC1 increases accordingly.

It is illustrated in figure 3 many ground switch element embodiment circuit of 3 self-resetting switch, including self-resetting switch S91, Self-resetting switch S92, self-resetting switch S93, resistance R91, driver F91.3 self-resetting switch S91, self-resetting switch S92, Self-resetting switch S93 is parallel relationship, and resistance R91 is pull-up resistor, self-resetting switch S91, self-resetting switch S92, Self-resetting Switch S93, resistance R91 composition line and logic.Due to output low level when self-resetting switch is pressed, or operation once exports Negative switching pulse, so, it between the operation of 3 self-resetting switch and the negative switching pulse of output is or logical relation.Driver F91 For improving the driving force of switching pulse P1.Self-resetting switch S91 in Fig. 3, resistance R91, driver F91 and single live wire list Unit, holding unit, the circuit of anti-interference unit are installed together, and are controlled load as this locality control switch.Self-resetting is opened Close S92, self-resetting switch S93 is separately mounted to two other place, switchs as his the ground control in how controlling；His ground is controlled Self-resetting switch in system switch is all connected in parallel on by connecting line on the self-resetting switch of local control switch.When there being n runback During bit switch, 1 therein switchs as local control, with pull-up resistor (resistance R91), driver (driver F91), Dan Huo Line unit, holding unit, the circuit of anti-interference unit are installed together, and are controlled load as this locality control switch；Other N-1 self-resetting switch is as his ground control switch, the Self-resetting being all connected in parallel in local control switch by connecting line On switch.Self-resetting switch includes self-resetting button switch, Self-resetting rocker switch etc..

Holding unit is T ' trigger, and T ' trigger can use d type flip flop, JK flip-flop to constitute, or enters with two Counters processed etc. realize.The input and output of T ' trigger are control pulse M1 and single live wire break-make control signal G1.

Anti-interference unit includes forward anti-jamming circuit, reverse anti-jamming circuit, data selector.

It is illustrated in figure 4 anti-interference unit embodiment.In embodiment, repid discharge diode, charging resistor, forward are anti-interference The anti-interference Schmidt circuit of electric capacity, forward is respectively diode D11, resistance R11, electric capacity C11, Schmidt circuit F11, constitutes Forward anti-jamming circuit；Quick charge diode, discharge resistance, reverse anti-interference capacitor, reverse anti-interference Schmidt circuit divide Not Wei diode D21, resistance R21, electric capacity C21, Schmidt circuit F21, constitute reverse anti-jamming circuit.The one of electric capacity C11 The input of termination Schmidt circuit F11, other end is connected to publicly；The one termination Schmidt circuit F21's of electric capacity C21 Input, other end is connected to publicly.P1 is switching pulse end, and M1 is control pulse ends.

In Fig. 4 embodiment, data selector T11 is alternative data selector, two data input signals and output letter Being all same phase relation between number, Schmidt circuit F11, Schmidt circuit F21 are homophase Schmidt circuit, and therefore, data are selected Selecting between device T11 output and the input of forward anti-jamming circuit is same phase relation, data selector T11 output and reverse anti-interference electricity It is also same phase relation between the input of road.The function of data selector T11 is: when selecting control end A=0, export Y=D1；When When selecting control end A=1, export Y=D2.The output Y (i.e. pulse output end M1) of data selector T11 is connected directly to number According to the selection control end A of selector T11, when control pulse M1 is low level, control data selector T11 selects Schmidt circuit Output signal A3 of F11 delivers to the output Y of data selector；When control pulse M1 is high level, control data selector T11 Output signal A4 selecting Schmidt circuit F21 delivers to the output Y of data selector.

Fig. 5 is the waveform of anti-interference unit embodiment, including switching pulse P1 and Schmidt circuit F11 output A3, Schmidt Circuit F21 output A4, the waveform of control pulse M1.In Fig. 4, diode D11, resistance R11, electric capacity C11 constitute asymmetric charge and discharge Electricity circuit, Schmidt circuit F11 is homophase Schmidt circuit, when switching pulse P1 is maintained low level for a long time, Schmidt The output A3 of circuit F11 is low level；When switching pulse P1 is maintained high level for a long time, A3 is high level.P1 signal pair Electric capacity C11 electric discharge is fast, and when switching pulse P1 becomes low level from high level, A1 current potential is immediately turned into low level current potential, and A3 stands I.e. become low level from high level.P1 signal is slow to electric capacity C11 charging, when switching pulse P1 becomes high level from low level, A1 current potential by P1 high level signal by resistance R11 to electric capacity C11 charge and rise, when charging between reach T1, on A1 current potential When liter meets and exceeds the upper limit threshold voltage of Schmidt circuit F11, A3 becomes high level from low level；Positive pulse width as P1 Degree is less than T1, and the charging interval is less than T1, and when A1 current potential is not up to the upper limit threshold voltage of Schmidt circuit F11, P1 becomes low electricity Flat, A1 current potential is immediately turned into low level current potential, and A3 maintains low level state.In Fig. 5, the original state of P1 and A3 is low level. The width of positive burst pulse the 11st, positive burst pulse the 12nd, positive burst pulse 13 is respectively less than T1, and A1 current potential cannot be charged to or more than Shi Mi The upper limit threshold voltage of special circuit F11, does not affect on A3 state；The width of the positive pulse 14 of P1 is more than T1, therefore, P1's After the rising edge of positive pulse 14 crosses time T1, A3 becomes high level from low level.The trailing edge of the positive pulse 14 of P1 makes A3 from height Level becomes low level, and the width of the positive pulse 15 of P1 is more than T1, and after positive pulse 15 rising edge crosses time T1, A3 is from low level Become high level.The trailing edge of the positive pulse 15 of P1 makes A3 become low level from high level, and the positive pulse of P1 the 16th, positive pulse is the 17th, The width of positive pulse 18 is respectively less than T1, and therefore, A3 is not affected by positive pulse the 16th, positive pulse the 17th, positive pulse 18, and A3 maintains low electricity Level state.The width of the positive pulse 19 of P1 is more than T1, and after positive pulse 19 rising edge crosses time T1, A3 becomes high electricity from low level Flat.

In Fig. 4, diode D21, resistance R21, electric capacity C21 equally constitute asymmetric charge-discharge circuit, Schmidt circuit F21 For homophase Schmidt circuit, when switching pulse P1 is maintained low level for a long time, the output A4 of Schmidt circuit F21 is low electricity Flat；When switching pulse P1 is maintained high level for a long time, A4 is high level.P1 signal is fast to electric capacity C21 charging, when switch arteries and veins Rushing P1 when low level becomes high level, A2 current potential is immediately turned into high level current potential, and A4 becomes high level from low level immediately.P1 Signal is slow to electric capacity C21 electric discharge, and when switching pulse P1 becomes low level from high level, A2 current potential is passed through by P1 low level signal Resistance R21 to electric capacity C21 discharge, upon discharging between reach T2, A2 current potential drops below the lower limit threshold of Schmidt circuit F21 During voltage, A4 becomes low level from high level；When P1 negative pulse width be less than T2, discharge time be less than T2, A2 current potential not under When fall reaches the lower limit threshold voltage of Schmidt circuit F21, P1 i.e. becomes high level, and A2 current potential is immediately turned into high level current potential, A4 maintains high level state.In Fig. 5, the original state of P1 and A4 is low level.The rising edge of the positive pulse 11 of P1 makes A4 from low Level becomes high level, and the width of the negative pulse 20 of P1 is more than T2, and after negative pulse 20 trailing edge crosses time T2, A4 is from high level Become low level.The rising edge of the positive pulse 12 of P1 makes A4 become high level from low level, the negative pulse of P1 the 20th, negative pulse 21 Width is respectively less than T2, and therefore, A4 is not affected by negative pulse the 20th, negative pulse 21, and A4 maintains low level state.The 23rd, negative pulse is born The width of pulse the 24th, negative pulse the 25th, negative pulse 26 is respectively less than T2, and A2 current potential cannot be through electric discharge at or below Schmidt circuit The lower limit threshold voltage of F21, does not affect on A4 state；The width of the negative pulse 27 of P1 is more than T2, therefore, in the negative pulse of P1 After the trailing edge of 27 crosses time T2, A4 becomes low level from high level.At the rising edge of the negative pulse 27 of P1, A4 becomes from low level For high level.

The output A3 of Schmidt circuit F11 keeps low level when switching pulse P1 is low level, switching pulse P1 by Low level is crossed time T1 after becoming high level and is just become high level.The output A4 of Schmidt circuit F21 is height at switching pulse P1 Keep high level during level, after switching pulse P1 is become low level from high level, cross time T2 just become low level.In other words, When A3 is high level, A4 must be high level；When A4 is low level, A3 must be low level.

In Fig. 5, the original state of A3, A4 is low level, and the output Y of data selector T11 is low level, and data select It is to maintain low level period as output Y and at A3 that device T11 selects A3.When A3 becomes high level at edge 30 from low level When, output Y becomes high level, and data selector T11 selects A4 as output Y, and now A4 must be high level, maintains output Y High level state.When A4 becomes low level at edge 31 from high level, output Y becomes low level, and data selector T11 selects Select A3 as output Y, now A3 must be low level, maintain export Y low level state.When A3 becomes from low level at edge 32 During for high level, output Y becomes high level, and data selector T11 selects A4 as output Y, and now A4 must be high level, dimension Hold the high level state of output Y.

Anti-interference unit is by the 11st, the burst pulse of the burst pulse in P1 signal the 12nd, burst pulse the 13rd, burst pulse the 23rd, burst pulse the 24th, narrow arteries and veins Punching the 25th, burst pulse 26 all filters out, and positive broad pulse 14 (includes positive pulse the 14th, positive pulse the 15th, positive pulse the 16th, positive pulse 17 and Positive pulse 18, negative pulse the 23rd, negative pulse the 24th, negative pulse the 25th, negative pulse 26 is disturbing pulse), negative broad pulse 27 can pass through, make M1 signal occurs corresponding positive broad pulse 28 and negative broad pulse 29.Control pulse M1 and switching pulse P1 homophase, and export Broad pulse 28 rising edge is than positive broad pulse 14 rising edge T1 lag time, trailing edge T2 lag time of input.

Positive pulse the 11st, positive pulse the 12nd, positive pulse 13 is positive burst pulse, and wherein positive pulse 11 is disturbing pulse, and positive pulse is the 12nd, Positive pulse 13 is continuous print Vibrating pulse.Time T1 is the maximum positive narrow pulse width that anti-interference unit can filter.T1 is filled The upper limit threshold voltage of electrical time constant, the high level current potential of switching pulse P1, low level current potential and Schmidt circuit F11 is common Impact.Under normal circumstances, high level current potential, the low level current potential of switching pulse P1 is definite value, and therefore, the value adjusting T1 can be led to Cross change charge constant or the upper limit threshold voltage of Schmidt circuit F11 is carried out.In Fig. 4, charge constant is Charging resistor R11 and the product of electric capacity C11.Described anti-interference unit allows the positive pulse signal more than T1 for the width to pass through.

Negative pulse the 23rd, negative pulse the 24th, negative pulse the 25th, negative pulse 26 is negative burst pulse, and wherein negative pulse 23 is disturbing pulse, Negative pulse the 24th, negative pulse the 25th, negative pulse 26 is continuous print Vibrating pulse.Time T2 is that the maximum that anti-interference unit can filter is born narrow Pulse width.T2 is by discharge time constant, the high level current potential of switching pulse P1, low level current potential and Schmidt circuit F21 Lower limit threshold voltage joint effect.Under normal circumstances, high level current potential, the low level current potential of switching pulse P1 is definite value, because of This, the value adjusting T2 can be carried out by changing the lower limit threshold voltage of discharge time constant or Schmidt circuit F21.Figure In 4, discharge time constant is the product of discharge resistance R21 and electric capacity C21.Described anti-interference unit allows the negative arteries and veins more than T2 for the width Rush signal to pass through.

In Fig. 4, electric capacity C11 connects one end publicly can be with reconfiguration at the power supply end of anti-interference unit, i.e. reconfiguration exists DC supply+VCC；Similarly, electric capacity C21 connect one end publicly also can individually or together with electric capacity C11 reconfiguration At DC supply+VCC.

In Fig. 4, Schmidt circuit F11, Schmidt circuit F21 can also simultaneously or separately select anti-phase Schmidt electricity Road, can also be simultaneously or separately inverted relationship between input D1, D2 of data selector T11 and output Y.When Schmidt's electricity Road F11, Schmidt circuit F21 simultaneously or separately select anti-phase Schmidt circuit, input D1, D2 of data selector T11 with When between output Y simultaneously or separately for inverted relationship, need to meet following condition, it may be assumed that when data selector T11 output letter For during with phase relation number between Y and forward anti-jamming circuit input signal, data selector T11 output signal Y with reversely anti-dry Disturb between circuit input signal is also same phase relation；The low level control of Y selects the output of Schmidt circuit F11 to deliver to data choosing Selecting the output of device T11, the high level control of Y selects the output of Schmidt circuit F21 to deliver to the output of data selector T11 End.When between data selector T11 output signal Y and forward anti-jamming circuit input signal for inverted relationship, data select It is also inverted relationship between device T11 output signal Y and reverse anti-jamming circuit input signal；The low level control selection of Y is executed close The output of data selector T11 is delivered in the output of special circuit F21, and the high level control of Y selects the output of Schmidt circuit F11 Deliver to the output of data selector T11.

The anti-interference Schmidt circuit of described forward, reverse anti-interference Schmidt circuit are Schmidt circuit, input signal For the voltage on electric capacity, it is therefore desirable to Schmidt circuit has high input impedance charcteristic.Schmidt circuit can select have height Cmos schmitt phase inverter CD40106,74HC14 of input impedance characteristic, or select that there is high input impedance charcteristic The devices such as cmos schmitt NAND gate CD4093,74HC24.Cmos schmitt phase inverter or cmos schmitt NAND gate upper Limit threshold voltage, lower limit threshold voltage are the fixed value related to device.By schmitt inverter or Schmidt's NAND gate Constitute homophase Schmidt circuit, need to increase one-level phase inverter after schmitt inverter or Schmidt's NAND gate.

Schmidt circuit can also select to use operational amplifier to constitute, and uses operational amplifier to constitute Schmidt's electricity Road can change upper limit threshold voltage, lower limit threshold voltage neatly.Similarly, operational amplifier is used to constitute Schmidt's electricity Lu Shi, needs to use structure and the circuit with high input impedance charcteristic.

Data selector can select the devices such as 74HC151,74HC152,74HC153, CD4512, CD4539 to constitute two choosings One data selector, it is also possible to constitute alternative data selector with gate circuit.

When operating self-resetting switch, normal contact chatter time is less than 20ms, and normal switching pulse width Degree is not less than 100ms；Interval between operation also will not be less than 100ms twice.Self-resetting switch in his ground control switch is complete Portion is all connected in local control switch by long connecting line, it is possible to produce High-frequency Interference pulse.Anti-interference unit allows width Positive pulse more than T1 and the undersuing more than T2 for the width are passed through, and therefore, the span of T1, T2 is 20ms extremely 100ms, when representative value all takes 50ms, can be effectively by the circuit High-frequency Interference of switch contact shaking interference and his ground control Pulse filters.

Claims (5)

1. single live wire switch that more than a kind, ground controls, it is characterised in that:

Including single live wire unit, holding unit, anti-interference unit and many ground switch element；

Described single live wire unit includes single live wire power getting module and single live wire break-make control module, be provided with single live wire input, Single fire wire output end, single live wire break-make control signal input and DC supply output；Described single live wire break-make controls Module is made up of bidirectional thyristor on-off circuit；Described single live wire break-make control signal is the trigger of bidirectional thyristor；

Described holding unit is provided with single live wire break-make control signal output and control pulse input end；Described single live wire break-make Control signal output is connected to single live wire break-make control signal input；

Described anti-interference unit is provided with control pulse output end and switching pulse input；Described control pulse output end is connected to Control pulse input end；Described anti-interference unit includes forward anti-jamming circuit, reverse anti-jamming circuit, data selector；

Described many ground switch element is provided with switching pulse output, and described switching pulse output is connected to switching pulse input End.

2. according to claim 1 how control single live wire switch, it is characterised in that: described single live wire power getting module to Single live wire break-make control module and many ground switch element, holding unit, anti-interference unit offer DC supply；Described direct current The ground end of working power is for single live wire break-make control module and many ground switch element, holding unit, anti-interference unit publicly.

3. the single live wire switch how controlling according to claim 1, it is characterised in that: described many ground switch element includes The self-resetting switch of 1 and 1 more parallel, output switch pulse.

4. the single live wire switch controlling according to according to any one of claim 1-3 manyly, it is characterised in that:

The input signal of described forward anti-jamming circuit and reverse anti-jamming circuit is switching pulse；

Described data selector is alternative data selector；Two data input pins of described data selector are respectively connecting to Forward anti-jamming circuit and the output of reverse anti-jamming circuit；

The data output end of described data selector is control pulse ends；The selection control end of described data selector is connected to control Pulse processed.

5. the single live wire switch how controlling according to claim 4, it is characterised in that: described forward anti-jamming circuit bag Include repid discharge diode, charging resistor, forward anti-interference capacitor, the anti-interference Schmidt circuit of forward；Described repid discharge two Pole tube cathode is forward anti-jamming circuit input, and anode is connected to forward anti-interference Schmidt circuit input；Described charging Resistance and repid discharge diodes in parallel；It is defeated that one end of described forward anti-interference capacitor is connected to the anti-interference Schmidt circuit of forward Entering end, other end is connected to publicly or DC supply；

Described reverse anti-jamming circuit includes quick charge diode, discharge resistance, reverse anti-interference capacitor, reversely anti-interference executes Close special circuit；Described quick charge diode anode is reverse anti-jamming circuit input, and negative electrode is connected to reversely anti-interference executing Close special circuit input end；Described discharge resistance and quick charge diodes in parallel；One end of described reverse anti-interference capacitor connects To reverse anti-interference Schmidt circuit input, other end is connected to publicly or DC supply；

Described forward anti-interference Schmidt circuit output is forward anti-jamming circuit output, reverse anti-interference Schmidt circuit Output is reverse anti-jamming circuit output.