CN204681656U - A kind of single live wire touch switch circuit - Google Patents
A kind of single live wire touch switch circuit Download PDFInfo
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- CN204681656U CN204681656U CN201520450484.XU CN201520450484U CN204681656U CN 204681656 U CN204681656 U CN 204681656U CN 201520450484 U CN201520450484 U CN 201520450484U CN 204681656 U CN204681656 U CN 204681656U
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Abstract
The utility model provides a kind of single live wire touch switch circuit, relates to soft-touch control field.This single live wire touch switch circuit comprises output driving circuit, corner cutting circuit, insulation triggering circuit, described output driving circuit is connected with live wire with the zero line of external civil power, described output driving circuit, described corner cutting circuit, described insulation triggering circuit are connected successively, described output driving circuit comprises bidirectional triode thyristor, described corner cutting circuit comprises the first bridge heap circuit and one-way SCR, circuit connected in series piled by described bidirectional triode thyristor and described first bridge, and described insulation triggering circuit comprises the first diode and isolation optocoupler driver.The clamp voltage that single live wire touch switch circuit that the utility model adopts adopts corner cutting circuit to arrange coordinates with output driving circuit, insulation triggering circuit, the small area analysis utilizing circuit to produce promotes circuits for triggering and drives bidirectional triode thyristor, drastically increase the load of single live wire soft-touch control, thus extend the useful life of single live wire soft-touch control.
Description
Technical field
The utility model relates to soft-touch control field, in particular to one list live wire touch switch circuit.
Background technology
Soft-touch control generally refers to a kind of switch on wall of application touch sensible chip concept design, it is the regeneration product of traditional mechanical button type wall switch, can realize the advantage that soft-touch control that is more intelligent, more convenient operation has traditional switch incomparable, be popular a kind of decorative switch of current family product.
Switch of the prior art, cannot to driving large-power lamp (namely the enable driving life-span is not also grown).The easy electrical breakdown of electrical equipment output device that existing switch drive power is slightly large or relay contact arcing bonding, useful life is low.To low power electrical equipment, the LED of such as 1W to 3W or the electricity-saving lamp of below 5W all can occur that Guan electricity Hou still has remaining light or the often lamp phenomenon of dodging, be commonly called as " will-o'-the-wisp ", produce " will-o'-the-wisp " phenomenon mainly because the single live wire power getting technology of soft-touch control is perfect not, the result that efficiency is extremely low.
Utility model content
The purpose of this utility model is to provide a kind of single live wire touch switch circuit, to improve the problem that soft-touch control of the prior art cannot drive for the electrical equipment of larger power.
The utility model is achieved in that
A kind of single live wire touch switch circuit, be connected with live wire with the zero line of external civil power, comprise output driving circuit, corner cutting circuit, insulation triggering circuit, described output driving circuit is connected with live wire with the zero line of external civil power, described output driving circuit, described corner cutting circuit, described insulation triggering circuit is connected successively, described output driving circuit comprises bidirectional triode thyristor, described corner cutting circuit comprises the first bridge heap circuit and one-way SCR, described first bridge heap circuit is connected with described one-way SCR, circuit connected in series piled by described bidirectional triode thyristor and described first bridge, described insulation triggering circuit comprises the first diode and isolation optocoupler driver, described first diode is connected with described isolation optocoupler driver, the positive pole of described first diode is connected with the positive pole of described one-way SCR.
In conjunction with first aspect, the utility model embodiment provides the first possible execution mode of first aspect, wherein, this single live wire touch switch circuit also comprises Switching Power Supply closed loop, described Switching Power Supply closed loop respectively with described output driving circuit, described corner cutting circuit is in parallel, described Switching Power Supply closed loop comprises filtering energy-storage travelling wave tube, electrifying startup charging circuit, power on charging and energy-storage travelling wave tube, power adjustment pipe and intelligent electric power management chip, described filtering energy-storage travelling wave tube and described electrifying startup charging circuit, described charging and the energy-storage travelling wave tube of powering on, described power adjustment pipe and the parallel connection of described intelligent electric power management chip, described power on charging and energy-storage travelling wave tube respectively with described power adjustment pipe, described intelligent electric power management chip connects.
By filtering energy-storage travelling wave tube, electrifying startup charging circuit, power on charging and energy-storage travelling wave tube, intelligent electric power management chip cooperating, can greatly improve the conversion ratio of power taking, stop the selectivity of soft-touch control to light fixture like this, achieve when low power electric appliance is closed at switch, stop the generation of " will-o'-the-wisp ", energy-conserving and environment-protective.
In conjunction with the first possible execution mode of first aspect, the utility model embodiment provides the possible execution mode of the second of first aspect, wherein, described Switching Power Supply closed loop also comprises transformer, described transformer comprises main winding, auxiliary winding and exports winding, described main winding is connected with described filtering energy-storage travelling wave tube, and described auxiliary winding is connected with described intelligent electric power management chip.
Transformer is arranged like this isolation optocoupler driver can be avoided to divide to fall the energy from main out-put supply, loss is reduced to the energy supply of Switching Power Supply closed loop, thus make whole system more stable, and can not overburden work, further avoid the generation of " will-o'-the-wisp " phenomenon.
In conjunction with the first possible execution mode of first aspect, the utility model embodiment provides the third possible execution mode of first aspect, wherein, this single live wire touch switch circuit also comprises touch induction circuit, described touch induction circuit is connected with described Switching Power Supply closed loop, described touch induction circuit comprises touch sensible logic chip and capacitive touch screen, and described capacitive touch screen, described touch sensible logic chip and described intelligent electric power management chip are connected successively.
Touch sensible logic chip is set at touch induction circuit, shields because chip dispersion effect is on the impact of capacitive sensing, improve the reliability of this touch induction circuit, touch sensitivity and stability.
In conjunction with the first possible execution mode of first aspect, the utility model embodiment provides the 4th kind of possible execution mode of first aspect, and wherein, the clamp voltage of described corner cutting circuit is 9.1V.
The best results when the clamp voltage of corner cutting circuit is 9.1V, now bidirectional triode thyristor conducting moment on the impulse current of light fixture substantially without impact, the power output of bidirectional triode thyristor is also ideal.
In conjunction with first aspect, or the first of first aspect is to the 4th kind of any one possible execution mode, the utility model embodiment provides the 5th kind of possible execution mode of first aspect, wherein, described Switching Power Supply closed loop also comprises power-down control circuit, described power-down control circuit comprises the first triode and the first resistance, described first resistance is connected with the base stage of described first triode and described intelligent electric power management chip respectively, and the collector electrode of described first triode to charge and the positive pole of energy-storage travelling wave tube is connected with described powering on.
When Switching Power Supply closed loop is in power down cannot power taking, control signal is exported by intelligent electric power management chip, make to power on charging and energy-storage travelling wave tube to be released the electric energy stored through power-down control circuit, in order to when powering on next time, power on charging and energy-storage travelling wave tube can open the running of whole Switching Power Supply closed loop by control switch Correctional tube accurately.
In conjunction with the first possible execution mode of first aspect, the utility model embodiment provides the 6th kind of possible execution mode of first aspect, wherein, described Switching Power Supply closed loop also comprises a LED light-emitting diode and the 2nd LED light-emitting diode, and a described LED light-emitting diode, described 2nd LED light-emitting diode are connected with described intelligent electric power management chip respectively.
One LED light-emitting diode and the 2nd LED light-emitting diode can be used as the indicator light that soft-touch control is in different conditions, and a LED light-emitting diode is different from the light color that the 2nd LED light-emitting diode sends, by backlight the light that the one LED light-emitting diode and the 2nd LED light-emitting diode send penetrated and be mapped to the transparent area of the touch key-press position of the touch toughened glass of this soft-touch control, unlatching is represented when a LED lumination of light emitting diode, during the 2nd LED lumination of light emitting diode, represent and close, user can be made to see state residing for this switch intuitively, easy to use.
In conjunction with the first possible execution mode of first aspect, the utility model embodiment provides the 7th kind of possible execution mode of first aspect, and wherein, described touch sensible logic chip is also connected with wireless receiving module.
At this touch induction circuit, wireless receiving module is set, can make this soft-touch control can with remote controller with the use of, achieve the Long-distance Control that this soft-touch control is opened and closed, drastically increase the convenience of switch.
In conjunction with the first possible execution mode of first aspect, the utility model embodiment provides the 8th kind of possible execution mode of first aspect, wherein, this single live wire touch switch circuit comprises three described output driving circuits, three described corner cutting circuits and three described insulation triggering circuits, a described output driving circuit, a described corner cutting circuit and a described insulation triggering circuit are connected successively as light fixture output circuit, and three described light fixture output circuits are in parallel.
Such setting can make this switch can control the open and close of three different electrical equipment, and opening of each electrical equipment has respective independence with closed.
In conjunction with the first possible execution mode of first aspect; the utility model embodiment provides the 9th kind of possible execution mode of first aspect; wherein; this single live wire touch switch circuit also comprises overcurrent-overvoltage thermal-shutdown circuit, and the live wire of external civil power, described overcurrent-overvoltage thermal-shutdown circuit and output driving circuit are connected successively.
Such setting can make the components and parts in middle single live wire touch switch circuit be subject to not being damaged in the situations such as overvoltage, overcurrent, surge, excess temperature, electromagnetic interference.
Hinge structure, the utility model has following beneficial effect: the clamp voltage that single live wire touch switch circuit that the utility model adopts adopts corner cutting circuit to arrange and output driving circuit, insulation triggering circuit coordinates, when alternating voltage is increased beyond clamp voltage, at this moment the small current drive signal of input is entered into isolation optocoupler driver, the small current drive signal isolation of input is amplified rear drive one-way SCR by the isolation optocoupler driver that recycling current amplification factor is large, now one-way SCR conducting, trigger bidirectional triode thyristor again by one-way SCR to connect, at this moment the small area analysis utilizing circuit to produce promotes circuits for triggering and drives bidirectional triode thyristor, drastically increase the load of single live wire touch switch circuit, thus extend the useful life of single live wire soft-touch control.
For making above-mentioned purpose of the present utility model, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
The principle schematic of the Switching Power Supply closed loop that Fig. 1 provides for the utility model;
Fig. 2 is the principle schematic (not comprising Switching Power Supply closed loop part) when single live wire touch switch circuit that the utility model embodiment one provides is applied to light fixture;
The principle schematic of the touch induction circuit of single live wire touch switch circuit that Fig. 3 provides for the utility model embodiment one;
Fig. 4 is the principle schematic (not comprising Switching Power Supply closed loop part) when single live wire touch switch circuit that the utility model embodiment two provides is applied to light fixture;
Fig. 5 is schematic diagram when double control switch that the utility model embodiment two provides is applied to light fixture;
The principle schematic of the touch induction circuit of single live wire touch switch circuit that Fig. 6 provides for the utility model embodiment two.
Embodiment
Below in conjunction with 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.The assembly of the utility model embodiment describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but selected embodiment of the present utility model is only represented.Based on embodiment of the present utility model, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
Soft-touch control generally refers to a kind of switch on wall of application touch sensible chip concept design, is the regeneration product of traditional mechanical button type wall switch, can realizes the advantage that soft-touch control that is more intelligent, more convenient operation has traditional switch incomparable.
Switch of the prior art, cannot to driving large-power lamp (namely the enable driving life-span is not also grown).The easy electrical breakdown of electrical equipment output device that the electrical equipment existing switch drive power that existing switch drive power is slightly large is slightly large or relay contact arcing bonding, useful life is low.
In view of upper kind situation, inventor finds through long-term observation and research, provide a kind of single live wire touch switch circuit, this single live wire touch switch circuit comprises output driving circuit, corner cutting circuit, insulation triggering circuit, described output driving circuit is connected with live wire with the zero line of external civil power, described output driving circuit, described corner cutting circuit, described insulation triggering circuit is connected successively, described output driving circuit comprises bidirectional triode thyristor, described corner cutting circuit comprises the first bridge heap circuit and one-way SCR, circuit connected in series piled by described bidirectional triode thyristor and described first bridge, described insulation triggering circuit comprises the first diode and isolation optocoupler driver.
The clamp voltage that single live wire touch switch circuit that the utility model adopts adopts corner cutting circuit to arrange coordinates with output driving circuit, insulation triggering circuit, the small area analysis utilizing circuit to produce promotes circuits for triggering and drives bidirectional triode thyristor, drastically increase the load of single live wire soft-touch control, thus extend the useful life of single live wire soft-touch control.
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Consult Fig. 1, Fig. 2, Fig. 3, single live wire touch switch circuit that the utility model embodiment one provides, comprise output driving circuit, corner cutting circuit, Switching Power Supply closed loop, insulation triggering circuit and touch induction circuit, output driving circuit inputs by the live wire of external civil power the zero line returning civil power through overdrive circuit connecting circuit, output driving circuit, corner cutting circuit and insulation triggering circuit are connected successively, Switching Power Supply closed loop is in parallel with output driving circuit, corner cutting circuit respectively, and touch induction circuit is connected with Switching Power Supply closed loop.When there being electric current to flow to Switching Power Supply closed loop by light fixture, Switching Power Supply closed loop is through processing the direct current power supply of the 3V 1.5MA of stable output to touch induction circuit.
Described output driving circuit comprises bidirectional triode thyristor Q1, the first resistance R1, the second resistance R2 and the first electric capacity C1, bidirectional triode thyristor Q1, the second resistance R2 connect with the first resistance R1, the first electric capacity C1 respectively, and the first resistance R1, the first electric capacity C1 are in parallel.The model of the bidirectional triode thyristor Q1 that the present embodiment adopts is BTA16 or 24, the small area analysis signal being conducive to circuits for triggering reliably triggers (current signal that small area analysis signal refers to 15mA-20mA), the power consumption of integrated circuit can be reduced, and bidirectional triode thyristor Q1 is once conducting, even if lose trigger voltage, also can continue to keep conducting state.
Described corner cutting circuit comprises the first bridge heap circuit DB1 and one-way SCR D1, and the first bridge heap circuit DB1 is connected with the negative electrode of one-way SCR D1, and bidirectional triode thyristor Q1, the second resistance, the first bridge heap circuit DB1 and the first resistance R1 are connected successively and formed loop.Clamp voltage is 6V to 12V, through utility model people test, the best results when clamp voltage is 9.1V, now bidirectional triode thyristor Q1 conducting moment on the impulse current of light fixture substantially without affect, the power output of bidirectional triode thyristor Q1 is also ideal.
Described insulation triggering circuit comprises the first diode Q2 and isolation optocoupler driver U1, the model of the first diode Q2 is BT169, described isolation optocoupler driver U1 comprises the first light-emitting diode and photosensitive semiconductor pipe, first light-emitting diode is coupled with photosensitive semiconductor pipe, the positive pole of the first diode Q2 is connected with the positive pole of one-way SCR D1, first bridge heap circuit DB1, the first diode Q2 and one-way SCR D1 form loop, and the negative pole of the first diode Q2 is connected with photosensitive semiconductor.
Live wire and the zero line of described Switching Power Supply closed loop and civil power are connected, described Switching Power Supply closed loop comprises electrifying startup charging circuit, power on charging and energy-storage travelling wave tube C5, the first triode Q8, intelligent electric power management chip U4, transformer BYQ1, the first electric capacity C1, the second electric capacity C5, the 3rd electric capacity C7 and protective circuit.First electric capacity C1 is filtering energy-storage travelling wave tube, and the positive pole of the first electric capacity C1 is connected with described electrifying startup charging circuit, the minus earth of the first electric capacity C1, and the second electric capacity C5 is charging and the energy-storage travelling wave tube C5 of powering on, and the first triode Q8 is power adjustment pipe Q8.Electrifying startup charging circuit comprises the second diode D4 and the 3rd resistance R7, and the negative pole of the second diode D4, the 3rd resistance R7, the second electric capacity C5, power adjustment pipe Q8 connect successively.The power tube base stage pin of intelligent electric power management chip U4, power tube emitter pin, power end pin to charge and energy-storage travelling wave tube C5, the base stage of power adjustment pipe Q8 and the emitter of power adjustment pipe Q8 are connected with powering on respectively, the positive pole of the 3rd electric capacity C7 and negative pole are connected with the power end pin of intelligent electric power management chip U4 and grounding pin respectively, and the 3rd electric capacity C7 positive pole is also connected with the emitter of power adjustment pipe Q8.The specification of the subelement in wherein said Switching Power Supply closed loop is as follows: the first electric capacity C1 is 400V/4.7UF, and the second electric capacity C5 is 400V/1UF, and the capacity of the 3rd electric capacity C7 is 470UF, and each winding of transformer BYQ1 meets the parameter list of design.
Described electrifying startup charging circuit, described second electric capacity C5, described power adjustment pipe Q8 and described protective circuit form loop; described protective circuit comprises the 4th electric capacity C6, the 4th resistance R8 and the 3rd diode D5; 4th resistance R8 is in parallel with the 4th electric capacity C6; 3rd diode D5 connects with the 4th resistance R8, the 4th electric capacity C6 respectively, and the anode of the 3rd diode D5 is connected with the collector electrode of power adjustment pipe Q8.
Transformer BYQ1 comprises main winding, chip power supply and feedback winding thereof and exports winding; described main winding is in parallel with the first electric capacity C1 respectively; electrifying startup charging circuit, the second electric capacity C5, power adjustment pipe Q8 and main winding form loop; protective circuit and main winding form loop; chip power supply and feedback winding switching thereof have the 4th diode D7; 4th diode D7 enters pin with the power supply of intelligent electric power management chip U4 and is connected, the other end ground connection of chip power supply and feedback winding thereof.The power supply voltage of auxiliary winding being input to intelligent electric power management chip U4 enters after pin processes, when overload, by the inter-process of feedback voltage through intelligent electric power management chip U4, pulse voltage after the power tube emitter pin of intelligent electric power management chip U4 exports adjustment goes to control power adjustment pipe Q8, the object of voltage stabilizing can be reached, export winding earth.This transformer BYQ1 comprises six windings altogether, the working power of isolation optocoupler driver U1 is independently supplied by three windings, isolation optocoupler driver U1 can be avoided to divide to fall the energy from the 3V 1.5MA power supply of main output, loss is reduced to the energy supply of Switching Power Supply closed loop, alleviate load, make whole system more stable, can not overburden work, further avoid the generation of " will-o'-the-wisp " phenomenon.
Described touch induction circuit is connected with the power end pin of intelligent electric power management chip U4, power adjustment pipe Q8 respectively, and touch induction circuit comprises capacitive touch screen, touch sensible logic chip IC1, touch sensible pull-up resistor R10, switch S K1 and pin-saving chip IC2.Touch sensible pull-up resistor R10 can improve the stability of operating state, switch S K1 be for the production of time quick-setting shorting switch, pin-saving chip IC2 is for depositing the using state of switch-linear hybrid state and remote address code, and touch sensible logic chip IC1 inside is provided with treatment circuit and the single-chip microcomputer of band automatic error-correcting.Wherein, the band treatment circuit of automatic error-correcting and single-chip microcomputer integration packaging are in an encapsulation, but inner integrated separately process, do not interfere with each other, and efficiently solve the shortcoming that touch sensible chip and single-chip microcomputer independent plan of establishment cost in prior art are high.
Capacitive touch screen is connected with touch sensible pull-up resistor R10, capacitive touch screen is made up of the Copper Foil of PCB, touch key-press is made by touching toughened glass, the position of capacitive touch screen is corresponding with the position of the touch key-press of this single live wire soft-touch control, form capacitive sensing environment, touch sensible pull-up resistor R10 is connected with intelligent electric power management chip U4, and pin-saving chip IC2 is connected with touch sensible chip, and switch is connected with touch sensible logic chip IC1.The some work of touch sensible logic chip IC1 is described as follows:
Initialization time: after electrification reset, touch sensible logic chip IC1 needs 120ms to carry out initialization, calculates the environmental capacitance of induction pin, then normally works.
Automatic calibration: according to the drift of ambient temperature and humidity etc., touch sensible logic chip IC1 adjusts the electric capacity benchmark reference value of switch key always.If button detected, touch sensible logic chip IC1 can stop correcting a period of time, and during this period of time at about 50 seconds, then chip continues self-correcting, and that is the detection button effective time is no more than 50 seconds.
Touch the reaction time: sampling should be carried out every about 4.5ms for each passage.After touch key-press disappears and trembles process, detect that the reaction time that touch key-press is pressed is 28ms, detecting the reaction time that touch key-press leaves is 18ms, and the fastest frequency detecting touch key-press is 20 times per second.
Touch sensitivity regulates: can regulate the sensitivity of touch sensible logic chip IC1 by regulating the size of pull-up resistor R10, resistance is sluggishness higher (when induction bonding pad size is constant) more, otherwise resistance is larger, sensitivity is poorer.
When the finger touch of user is to the medium of capacitive influence sensor induction region, form electric capacity, now touch signal is delivered to the treatment circuit of band automatic error-correcting by capacitance sensor, after the treatment circuit of band automatic error-correcting carries out physical logic process, pass the signal along to single-chip microcomputer again, single-chip microcomputer, after stabilization technical finesse, finally exports fill order.
Touch sensible logic chip IC1 is set at touch induction circuit, shields because chip dispersion effect is on the impact of capacitive sensing, improve the reliability of this touch induction circuit, touch sensitivity and stability.
Described Switching Power Supply closed loop also comprises power-down control circuit, described power-down control circuit comprises the second triode Q7 and the 4th diode D7,4th diode D7 is connected with the base stage of the second triode Q7 and the DIS pin of intelligent electric power management chip U4 respectively, and the collector electrode of the second triode Q7 to charge and the positive pole of energy-storage travelling wave tube C5 is connected with described powering on.When Switching Power Supply closed loop is in power down cannot power taking, control signal is exported by intelligent electric power management chip U4, make to power on charging and energy-storage travelling wave tube C5 to release the electric energy stored through power-down control circuit, in order to when powering on next time, power on charging and energy-storage travelling wave tube C5 can open the running of whole Switching Power Supply closed loop by control switch Correctional tube accurately.
Described Switching Power Supply closed loop also comprises the 2nd LED light-emitting diode and the 3rd LED light-emitting diode, and the 2nd LED light-emitting diode, the 3rd LED light-emitting diode are connected with the power end pin of described intelligent electric power management chip U4 respectively.2nd LED light-emitting diode and the 3rd LED light-emitting diode can be used as indicator light when soft-touch control is in different conditions, and the 2nd LED light-emitting diode and the 3rd LED light-emitting diode send red and blue light respectively, by backlight the light that the 2nd LED light-emitting diode and the 3rd LED light-emitting diode send penetrated and be mapped to the transparent area of the touch key-press position of the touch toughened glass of this soft-touch control.Represent unlatching when the 2nd LED light-emitting diode sends red light, when the 3rd LED light-emitting diode sends blue light, represent and close, can make to use the state seen intuitively residing for this switch, easy to use.Certainly, the color of the light that the 2nd LED light-emitting diode and the 3rd LED light-emitting diode send can by user's free setting, as long as can as distinguishing.
Described touch sensible logic chip IC1 is also connected with wireless receiving module, at this touch induction circuit, wireless receiving module is set, can make this soft-touch control can with remote controller with the use of, achieve the Long-distance Control that this soft-touch control is opened and closed, drastically increase the convenience of switch.
In addition, this single live wire touch switch circuit also comprises overcurrent-overvoltage thermal-shutdown circuit, and the live wire of described external civil power, described overcurrent-overvoltage thermal-shutdown circuit and output driving circuit are connected successively.Established by the Protection parameters of described overcurrent-overvoltage thermal-shutdown circuit when the temperature of this single live wire switch is more than 80 degree or when electric current is greater than 10A, described single live wire touch switch circuit disconnects automatically.Overcurrent-overvoltage thermal-shutdown circuit can make the components and parts in single live wire touch switch circuit be subject to not being damaged in the situations such as overvoltage, excess temperature, overcurrent and surge.
The clamp voltage that single live wire touch switch circuit that the utility model adopts adopts corner cutting circuit to arrange and output driving circuit, insulation triggering circuit coordinates, when alternating voltage is increased beyond clamp voltage, at this moment the small current drive signal of input is entered into isolation optocoupler driver U1, the small current drive signal isolation of input is amplified rear drive one-way SCR D1 by the isolation optocoupler driver U1 that recycling current amplification factor is larger, now one-way SCR D1 conducting, trigger bidirectional triode thyristor Q1 again by one-way SCR D1 to connect, at this moment the small area analysis utilizing circuit to produce promotes circuits for triggering and drives bidirectional triode thyristor Q1, drastically increase the load of single live wire soft-touch control, thus extend the useful life of single live wire soft-touch control.
When ac power waveform starts to be declined from height point toward low spot, when dropping to lower than clamp voltage, bidirectional triode thyristor Q1 ends at once, the electric current flowing through light fixture enters Switching Power Supply closed loop, by filtering energy-storage travelling wave tube, electrifying startup charging circuit, intelligent electric power management chip U4 cooperating, because filtering energy-storage travelling wave tube, electrifying startup charging circuit have the effect of energy storage, power-off or bidirectional triode thyristor Q1 connect do not have electric current to flow to Switching Power Supply closed loop time, supply that also can be stable exports.The cycle of this supply electricity is far longer than alternating current at the waveform when controllable silicon changes by being greater than the angle of flow to the cycle being less than conducting, can greatly improve the conversion ratio of power taking, stop the selectivity of soft-touch control to light fixture like this, achieve when low power electric appliance is closed at switch, stop the generation of " will-o'-the-wisp ", energy-conserving and environment-protective.
Consult Fig. 5, Fig. 6, the utility model embodiment two provides a kind of single live wire touch switch circuit, it should be noted that, single live wire touch switch circuit that the utility model embodiment two provides, its basic structure is identical with the first embodiment with the technique effect of principle and generation, for concise and to the point description, the not mentioned part of the present embodiment part, can with reference to corresponding contents in the first embodiment.
This single live wire touch switch circuit comprises three output driving circuits, three corner cutting circuits and three insulation triggering circuits, an output driving circuit, a corner cutting circuit and an insulation triggering circuit are connected successively as light fixture output circuit, and three light fixture output circuits are in parallel.Described single live wire soft-touch control comprises three touch key-presss, a touch key-press is for controlling a capacitive touch screen, described touch induction circuit comprises three capacitive touch screen in parallel, three LED light-emitting diodes in parallel, three the 2nd LED light-emitting diodes in parallel and three touch sensible pull-up resistors, a capacitive touch screen is connected with a touch sensible pull-up resistor, each LED light-emitting diode and a 2nd LED light-emitting diode match, for showing opening and closing of single live wire soft-touch control.
Preferably, this single live wire touch switch circuit also comprises the second bridge heap circuit DB4 and the 3rd bridge heap circuit DB5, it is in parallel that circuit DB5 piled by described second bridge heap circuit DB4 and described 3rd bridge, described second bridge heap circuit DB4, described 3rd bridge heap circuit DB5 are in parallel, and be all connected with live wire with the zero line of external civil power, the second bridge heap circuit DB4 piles circuit DB5 with described 3rd bridge and connects with described Switching Power Supply closed loop respectively.Second bridge heap circuit DB4 and the 3rd bridge heap circuit DB5 can play the effect of rectification, Switching Power Supply closed loop can be helped to eliminate the ability that sparks of noise jamming, regulated output voltage, raising power-supply system, improve power taking efficiency etc., practical.
Preferably, this single live wire touch switch circuit is double control switch circuit, can be applicable to opening and closedown of two same light fixtures of switch control rule, during installation, two switches can be installed on corridor or indoor, outdoor diverse location, the illumination be convenient for people to, this switching circuit be the connection of double control switch circuit as shown in Figure 4.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. a single live wire touch switch circuit, be connected with the zero line of external civil power and live wire, it is characterized in that, comprise output driving circuit, corner cutting circuit and insulation triggering circuit, zero line and the live wire of described output driving circuit and external civil power are connected, described output driving circuit, described corner cutting circuit, described insulation triggering circuit is connected successively, described output driving circuit comprises bidirectional triode thyristor, described corner cutting circuit comprises the first bridge heap circuit and one-way SCR, described first bridge heap circuit is connected with described one-way SCR, circuit connected in series piled by described bidirectional triode thyristor and described first bridge, described insulation triggering circuit comprises the first diode and isolation optocoupler driver, described first diode is connected with described isolation optocoupler driver, the positive pole of described first diode is connected with the positive pole of described one-way SCR.
2. single live wire touch switch circuit according to claim 1, it is characterized in that, also comprise Switching Power Supply closed loop, described Switching Power Supply closed loop respectively with described output driving circuit, described corner cutting circuit is in parallel, described Switching Power Supply closed loop comprises filtering energy-storage travelling wave tube, electrifying startup charging circuit, power on charging and energy-storage travelling wave tube, power adjustment pipe and intelligent electric power management chip, described filtering energy-storage travelling wave tube respectively with described electrifying startup charging circuit, described charging and the energy-storage travelling wave tube of powering on, described power adjustment pipe and the parallel connection of described intelligent electric power management chip, described power on charging and energy-storage travelling wave tube respectively with described power adjustment pipe, described intelligent electric power management chip connects.
3. single live wire touch switch circuit according to claim 2, it is characterized in that, described Switching Power Supply closed loop also comprises transformer, described transformer comprises main winding, auxiliary winding and exports winding, described main winding is connected with described filtering energy-storage travelling wave tube, and described auxiliary winding is connected with described intelligent electric power management chip.
4. single live wire touch switch circuit according to claim 2, it is characterized in that, also comprise touch induction circuit, described touch induction circuit is connected with described Switching Power Supply closed loop, described touch induction circuit comprises touch sensible logic chip and capacitive touch screen, and described capacitive touch screen, described touch sensible logic chip and described intelligent electric power management chip are connected successively.
5. single live wire touch switch circuit according to claim 4, is characterized in that, the clamp voltage of described corner cutting circuit is 9.1V.
6. according to the arbitrary described single live wire touch switch circuit of claim 2 ~ 5, it is characterized in that, described Switching Power Supply closed loop also comprises power-down control circuit, described power-down control circuit comprises the first triode and the first resistance, described first resistance is connected with the base stage of described first triode and described intelligent electric power management chip respectively, and the collector electrode of described first triode to charge and the positive pole of energy-storage travelling wave tube is connected with described powering on.
7. single live wire touch switch circuit according to claim 6, it is characterized in that, described Switching Power Supply closed loop also comprises a LED light-emitting diode and the 2nd LED light-emitting diode, and a described LED light-emitting diode, described 2nd LED light-emitting diode are connected with described intelligent electric power management chip respectively.
8. single live wire touch switch circuit according to claim 7, is characterized in that, described touch sensible logic chip is also connected with wireless receiving module.
9. single live wire touch switch circuit according to claim 8, it is characterized in that, this single live wire touch switch circuit comprises three described output driving circuits, three described corner cutting circuits and three described insulation triggering circuits, a described output driving circuit, a described corner cutting circuit and a described insulation triggering circuit are connected successively as light fixture output circuit, and three described light fixture output circuits are in parallel.
10. single live wire touch switch circuit according to claim 9; it is characterized in that; this single live wire touch switch circuit also comprises overcurrent-overvoltage thermal-shutdown circuit, and the live wire of external civil power, described overcurrent-overvoltage thermal-shutdown circuit and output driving circuit are connected successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520450484.XU CN204681656U (en) | 2015-06-26 | 2015-06-26 | A kind of single live wire touch switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520450484.XU CN204681656U (en) | 2015-06-26 | 2015-06-26 | A kind of single live wire touch switch circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204681656U true CN204681656U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520450484.XU Expired - Fee Related CN204681656U (en) | 2015-06-26 | 2015-06-26 | A kind of single live wire touch switch circuit |
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| Country | Link |
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| CN (1) | CN204681656U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106658826A (en) * | 2016-11-16 | 2017-05-10 | 深圳市天乔科技有限公司 | Two-path single-live-wire switch |
| CN106658827A (en) * | 2016-11-16 | 2017-05-10 | 深圳市天乔科技有限公司 | One-way single fire wire switch |
| WO2019218694A1 (en) * | 2018-05-17 | 2019-11-21 | 珠海市圣昌电子有限公司 | Single-input single-output touch phase-cut dimming controller |
-
2015
- 2015-06-26 CN CN201520450484.XU patent/CN204681656U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106658826A (en) * | 2016-11-16 | 2017-05-10 | 深圳市天乔科技有限公司 | Two-path single-live-wire switch |
| CN106658827A (en) * | 2016-11-16 | 2017-05-10 | 深圳市天乔科技有限公司 | One-way single fire wire switch |
| CN106658827B (en) * | 2016-11-16 | 2018-07-17 | 深圳市天乔科技有限公司 | A kind of firewire switch single all the way |
| CN106658826B (en) * | 2016-11-16 | 2018-07-17 | 深圳市天乔科技有限公司 | Two road list firewire switch of one kind |
| WO2019218694A1 (en) * | 2018-05-17 | 2019-11-21 | 珠海市圣昌电子有限公司 | Single-input single-output touch phase-cut dimming controller |
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Granted publication date: 20150930 Termination date: 20170626 |