CN202026518U - Sound and light controlled time delay switch - Google Patents
Sound and light controlled time delay switch Download PDFInfo
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- CN202026518U CN202026518U CN2011201019581U CN201120101958U CN202026518U CN 202026518 U CN202026518 U CN 202026518U CN 2011201019581 U CN2011201019581 U CN 2011201019581U CN 201120101958 U CN201120101958 U CN 201120101958U CN 202026518 U CN202026518 U CN 202026518U
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Abstract
The utility model provides a sound and light controlled time delay switch. The time delay switch mainly comprises a power supply, an electret microphone, a sound source signal amplification circuit and a signal comparison circuit, wherein the sound source signal amplification circuit mainly comprises low-power-consumption operational amplifiers; the signal comparison circuit mainly comprises Schmitt triggers; and the electret microphone is electrically connected with the sound source signal amplification circuit and the signal comparison circuit, and the signal comparison circuit is connected with the power supply. The sound and light controlled time delay switch provided by the utility model has reduced static working current, can reduce the heat quantity generated by voltage dropping resistors, achieves the purposes that load energy-saving lamps and fluorescent lamps are prevented from stroboflash when not triggered and continuous triggering can be carried out after the bulbs are lightened, and conforms to the energy-saving, economical and practical requirements, thereby overcoming the shortcomings of a conventional sound and light controlled time delay switch.
Description
Technical field
The utility model relates to a kind of photoacoustic dual-controlled delay switch.
Background technology
In recent years, along with the generally use of energy-saving light fixture, the application of low-power consumption even super low-power consumption electronic switch is also increasingly extensive.In the industry of present civil buildings switch, the two controlled delay switch of electronic acoustooptic can be divided into two-wire system structural design scheme and three-wire system structural design scheme on the circuit design scheme.
The two-wire system structural design scheme, be to be provided with two terminals, switch and load are serially connected in the electrical network, internal logic circuit, delay circuit are generally with integrated circuit--and a door trigger is core parts or form realizes that with discrete electronic component their common ground is: circuit work power all is to adopt resistance step-down or resistance-capacitance depressurization to realize.
And the three-wire system structural design scheme is improved on the technical foundation of two-wire system, is provided with three Wiring ports, and switch and load are serially connected in the electrical network, provides power supply by an external live wire for its internal circuit simultaneously.
Above-mentioned existing photoacoustic dual-controlled delay switch all has defective in actual use, specifically:
Existing two-wire system structural design scheme, adopt with integrated NAND gate circuit TC4011 is that sound-source signal, light signal amplifying circuit comparison circuit delay circuit, the circuits for triggering that core parts constitute are realized sound, light-operated delay function more, or the similar circuit that constitutes with discrete component.Because adopting the big integrated circuit of discrete component or power consumption forms, therefore the working power quiescent current is big, the dropping resistor caloric value is big, load electricity-saving lamp, fluorescent lamp have stroboscopic phenomenon not triggering when lighting, bulb light also exist can not continuous trigger shortcoming;
And existing three-wire system structural design scheme, though load electricity-saving lamp and fluorescent lamp do not have stroboscopic phenomenon when lighting not triggering, also exist power consumption big, produce shortcomings such as heat is big, the more important thing is, when installing wiring, it need change indoor original wiring, installing engineering complexity.
This shows that above-mentioned existing photoacoustic dual-controlled delay switch obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.How to found a kind of static working current that reduces switch, reduce the heat that dropping resistor produces, realize that load electricity-saving lamp, fluorescent lamp do not have stroboscopic phenomenon not triggering when lighting, but continuous trigger after bulb is lighted, and the photoacoustic dual-controlled delay switch that meets the new structure of energy-conservation, economic, practical requirement belongs to the current industry utmost point and needs improved target in fact.
The utility model content
The technical problems to be solved in the utility model provides a kind of photoacoustic dual-controlled delay switch, make it can reduce the static working current of switch, reduce the heat that dropping resistor produces, realize that load electricity-saving lamp, fluorescent lamp do not have stroboscopic phenomenon not triggering when lighting, but continuous trigger after bulb is lighted, and meet energy-conservation, economic, practical requirement, thereby overcome the deficiency of existing photoacoustic dual-controlled delay switch.
For solving the problems of the technologies described above, a kind of photoacoustic dual-controlled delay switch of the utility model mainly comprises power supply, Electret condenser microphone, sound-source signal amplifying circuit and signal comparator circuit, and wherein: the sound-source signal amplifying circuit mainly is made up of low consumed power operational amplifier; Signal comparator circuit mainly is made up of Schmidt trigger; Electret condenser microphone is connected with sound-source signal amplifying circuit, signal comparator circuit, and signal comparator circuit is connected with power supply.
As a kind of improvement of the present utility model, described signal comparator circuit also is connected with photo resistance.
Described sound-source signal amplifying circuit comprises low consumed power operational amplifier IC2A and IC2B, signal comparator circuit comprises Schmidt trigger IC1A, IC1B, IC1C, IC1D, wherein: the in-phase input end of IC2A is connected with Electret condenser microphone, and output is connected with the in-phase input end of IC2B; The output of IC2B is connected with the input of IC1C; The input of IC1A is connected with power supply by photo resistance, and output is connected with the input of IC1D, the output of IC1B; The input of IC1B is connected with the output of IC1D, power supply, and output connects triggering rectifier and ground connection; The input of IC1C is connected with power supply, and output is connected with the input of IC1D.
The in-phase input end of described IC2A is connected with Electret condenser microphone by capacitor C 5, and output is connected with the in-phase input end of IC2B by capacitor C 6; The output of IC2B is connected with the input of IC1C by diode D7; The input of IC1A is connected with power supply by photo resistance, and output is connected with input 13 pin of IC1D by resistance R 19 one tunnel, and another road is connected with the output of IC1B by diode D8; The input of IC1B is leaded up to diode D6 and is connected with the output of IC1D, and another road is connected with power supply by resistance R 6, capacitor C 7, output connection triggering rectifier and through resistance R 4 ground connection; The input of IC1C is connected with power supply by resistance R 8, capacitor C 8, and output is connected with input 12 pin of IC1D.
Described rectifier mainly comprises silicon controlled rectifier SCR1 and SCR2, and wherein, SCR1 leads up to that voltage stabilizing didoe VD2 connects and trigger SCR2, and another road is power supply power supply and ground connection by resistance R 18, diode D5.
Described power supply leads up to also that resistance R 10 is connected with the in-phase input end of IC2A and by resistance R 11 ground connection, and another road is connected with the in-phase input end of IC2B by resistance R 14 and passes through resistance R 15 ground connection; The inverting input of IC2A is leaded up to R12 and is connected with the output of IC2A, and another road is by resistance R 13 ground connection; The inverting input of IC2B is leaded up to resistance R 16 and is connected with the output of IC2B, and another road is by resistance R 17 ground connection; The input of IC1A is also by resistance R 7 ground connection; The positive pole of Electret condenser microphone also is connected minus earth by resistance R 9 with power supply.
Also comprise piezo-resistance and bridge rectifier, the input of bridge rectifier and piezo-resistance also connect, and output is power supply power supply and ground connection by the supply voltage circuit.
Described supply voltage circuit comprises filter C1, voltage stabilizing didoe VD1 and resistance R 1, R2.
Described bridge rectifier is made up of rectifier diode D1, D2, D3, D4.
Described low consumed power operational amplifier is integrated operational amplifier TLV27L2, and Schmidt trigger adopts HEF4093.
After adopting such structure, the utility model has following advantage at least:
1, adopts two-wire system structural design, simple installation;
2, select the core integrated circuit of super low-power consumption for use, reduced the switch quiescent dissipation, avoided load electricity-saving lamp, the stroboscopic phenomenon of fluorescent lamp when triggering is not lighted;
3, the circuit design of super low-power consumption, and load electricity-saving lamp replaces incandescent lamp, and power consumption is low, only consumes 0.2 degree electricity the whole year, and is more more economical and more practical than prior art;
4, utilize triggering signal to suppress photo resistance and be subjected to bulb being sent the variation of corresponding current potential that luminosity causes after lighting, but continuous trigger still after making bulb light prolongs ON time, is more suitable for extensively promoting the use of.
Description of drawings
Above-mentioned only is the general introduction of technical solutions of the utility model, and for can clearer understanding technological means of the present utility model, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the circuit connection diagram of the utility model photoacoustic dual-controlled delay switch.
Embodiment
See also shown in Figure 1, a kind of photoacoustic dual-controlled delay switch of the utility model comprises piezo-resistance, bridge rectifier, supply voltage circuit, power supply, Electret condenser microphone EPE, photo resistance DS, rectifier cell SCR1, SCR2, operational amplifier IC2A, IC2B and trigger IC1A, IC1B, IC1C, IC1D.
Wherein, the input of bridge rectifier and piezo-resistance VR1 also connect, and output is powered and ground connection to power supply V+ by the supply voltage circuit.Bridge rectifier is made up of rectifier diode D1, D2, D3, D4, and the supply voltage circuit comprises filter C1, voltage stabilizing didoe VD1 and resistance R 1, R2.
Power supply V+ leads up to also that R10 is connected with the in-phase input end of IC2A and by R11 ground connection, and another road is connected with the in-phase input end of IC2B by R14 and by R15 ground connection.
Operational amplifier IC2A, IC2B all adopt integrated operational amplifier TLV27L2.
Electret condenser microphone EPE is connected with the in-phase input end of IC2A by C5, and the output of IC2A is connected with the in-phase input end of IC2B by C6.The inverting input of IC2A is leaded up to R12 and is connected with the output of IC2A, and another road is by resistance R 13 ground connection.The positive pole of Electret condenser microphone EPE also is connected minus earth by resistance R 9 with V+.
The output of IC2B is connected with the input of IC1C by D7.The inverting input of IC2B is leaded up to R16 and is connected with the output of IC2B, and another road is by resistance R 17 ground connection.
Trigger IC1A, IC1B, IC1C, IC1D all adopt Schmidt trigger HEF4093.
Power supply V+ is by the input of photo resistance DS and IC1A, and the output of IC1A is connected with input 13 pin of IC1D by R19 one tunnel, and another road is connected with the output of IC1B by D8.The input of trigger IC1A is also by resistance R 7 ground connection.
The output of IC1D is connected with the input of IC1B by D6, and power supply V+ is connected with the input of IC1B by R6, C7, the output connection triggering rectifier of IC1B and through resistance R 4 ground connection.Rectifier comprises silicon controlled rectifier SCR1 and SCR2, and SCR1 leads up to that voltage stabilizing didoe VD2 connects and trigger SCR2, and another road powers to power supply V+ by resistance R 18, diode D5.
Power supply V+ is connected with the input of IC1C by R8, C8, and the output of IC1C is connected with the input of IC1D 12 pin.
During use, the alternating current of 220V is connected in series light fixture (electricity-saving lamp or incandescent lamp) back and piezo-resistance VR1 and receives two terminals of this switch, after bridge rectifier D1, D2, D3, D4 rectification R1, R2 current limliting, C1 filtering, VD1 voltage stabilizing, making supply voltage V+ is DC5.1V, circuit standby current≤60 μ A.
The circuit inactive state: after circuit was connected, if the illuminance around the switch is strong excessively, the resistance of photo resistance will be very little.Therefore, the current potential of trigger IC1A input is relative high potential, if this current potential during greater than trigger upper limit transfer valve threshold voltage, the output output low level of IC1A and to make trigger IC1D input 13 pin by resistance R 19 be low level.According to HEF4093 trigger principle as can be known: have only when two inputs of trigger are high level simultaneously, its corresponding output is output low level, otherwise is high level.Therefore the output of IC1D is a high level, and the output of in like manner releasing trigger IC1B is a low level.Silicon controlled rectifier SCR1, SCR2 be not because of obtaining effective trigger signals remain off state, and light fixture does not work.
Circuit triggers state: when arriving night, along with ambient light illumination constantly descends, the resistance of photo resistance constantly rises, the input current potential of trigger IC1A will constantly descend, circuit upset when dropping to the lower limit transfer valve threshold voltage of trigger, the output of IC1A is exported high level and made trigger IC1D input 13 pin by resistance R 19 is high level, if this moment, surrounding environment had the people to speak, clap the hands etc. and to send the sound of enough amount in decibels, this sound will be received and convert to the faint signal of telecommunication by Electret condenser microphone, again by capacitor C 5 couplings, integrated operational amplifier IC2A, the two-stage of IC2B is amplified the back makes the input current potential of trigger IC1C drop to the lower limit transfer valve threshold voltage of trigger by diode D7, and high level is exported in the IC1C upset.Promptly this moment trigger IC1D input 12,13 pin be high level simultaneously, the output output low level, capacitor C 7 by D6 charge rapidly, IC1B output high level is by resistance R 5 triggering controllable silicon SCR 1.
Moment after the silicon controlled rectifier SCR1 conducting can produce voltage drop on resistance R 4, this pressure drop is leaded up to voltage stabilizing didoe VD2 and removed to trigger silicon controlled rectifier SCR2, and electricity-saving lamp or incandescent lamp are lighted immediately.Simultaneously, because the clamping action of voltage drop flows through R1, R2, no current after the SCR2 conducting, and no longer power to V+; And another road powers to V+ by resistance R 18, diode D5, has so just guaranteed that power supply V+'s is stable.
Circuit delay function: after electricity-saving lamp (or incandescent lamp) is lighted, if the sound around the switch disappears or when being reduced to the amount in decibels of not enough trigger switch, though the input of trigger IC1C, the output of IC1D revert to high level again, but the C7 stored charge can keep level at the bottom of the trigger IC1B input by resistance R 6 slow discharges, the output high level state, light fixture continues to light.But along with capacitor C 7 is constantly discharged to R6, the current potential of trigger IC1B input also constantly rises, circuit upset when rising to the upper limit transfer valve threshold voltage of trigger, the output of trigger IC1B recovers low level, silicon controlled rectifier SCR1 loses trigger current, SCR1, SCR2 turn-off in succession when alternating current zero crossing, and light fixture extinguishes, and delay time is by the time constant decision of R6, C7.
But circuit repeat function: when IC1B output high level is lighted by resistance R 5 triggering controllable silicon SCR 1, SCR2 and light fixture, another road by diode D8, R19 make input 13 pin of IC1D be not subjected to photo resistance DS be subjected to light fixture lighted the back resistance reduce, the input current potential of trigger IC1A is raise, and the influence of output low level continues to keep high level.If the sound around the switch keeps being not less than the amount in decibels of trigger switch always, light fixture is just lighted always, and when sound disappeared or is reduced to the amount in decibels of not enough trigger switch, light fixture was just through closing after the time-delay.In like manner, light fixture is lighted the back is sent enough amount in decibels on every side once more as if switch in reference time delay sound by sounds trigger, and light fixture will be closed after will triggering time-delay the last time, thus but the repeated trigger function of realization circuit.
The utility model is a kind of energy-saving two-wire system photoacoustic dual-controlled delay switch.Wherein, trigger IC1A, IC1B, IC1C, IC1D all can adopt Schmidt trigger HEF4093.Piezo-resistance VR1 is attempted by on the terminals, can suppresses the surge voltage that causes because of power network fluctuation effectively, realize the moment overvoltage protection.
The utility model photoacoustic dual-controlled delay switch is core parts with super low-power consumption operational amplifier TLV27L2 and Schmidt trigger HEF4093, operational amplifier TLV27L2 and related elements constitute the sound-source signal amplifying circuit, but but Schmidt trigger HEF4093 and related elements formation signal comparator circuit, delay circuit, circuits for triggering repeated trigger circuit are realized sound, light-operated time-delay and repeated trigger function.Utilize the design of super low-power consumption, reasonably select super low-power consumption core devices and relevant logic trigger circuit, signal amplification circuit for use, reached the static working current that reduces switch, reduce the heat that dropping resistor produces, realize that load electricity-saving lamp, fluorescent lamp do not have stroboscopic phenomenon not triggering when lighting, but the effect of continuous trigger after bulb is lighted, and meet many-sided requirements such as energy-conservation, economic, practical, be suitable for extensively promoting the use of.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in the protection range of the present utility model.
Claims (10)
1. a photoacoustic dual-controlled delay switch is characterized in that mainly comprising power supply, Electret condenser microphone, sound-source signal amplifying circuit and signal comparator circuit, wherein:
The sound-source signal amplifying circuit mainly is made up of low consumed power operational amplifier;
Signal comparator circuit mainly is made up of Schmidt trigger;
Electret condenser microphone is connected with sound-source signal amplifying circuit, signal comparator circuit, and signal comparator circuit is connected with power supply.
2. photoacoustic dual-controlled delay switch according to claim 1 is characterized in that described signal comparator circuit also is connected with photo resistance.
3. photoacoustic dual-controlled delay switch according to claim 2 is characterized in that described sound-source signal amplifying circuit comprises low consumed power operational amplifier IC2A and IC2B, and signal comparator circuit comprises Schmidt trigger IC1A, IC1B, IC1C, IC1D, wherein:
The in-phase input end of IC2A is connected with Electret condenser microphone, and output is connected with the in-phase input end of IC2B;
The output of IC2B is connected with the input of IC1C;
The input of IC1A is connected with power supply by photo resistance, and output is connected with the input of IC1D, the output of IC1B;
The input of IC1B is connected with the output of IC1D, power supply, and output connects triggering rectifier and ground connection;
The input of IC1C is connected with power supply, and output is connected with the input of IC1D.
4. photoacoustic dual-controlled delay switch according to claim 3 is characterized in that:
The in-phase input end of described IC2A is connected with Electret condenser microphone by capacitor C 5, and output is connected with the in-phase input end of IC2B by capacitor C 6;
The output of IC2B is connected with the input of IC1C by diode D7;
The input of IC1A is connected with power supply by photo resistance, and output is connected with input 13 pin of IC1D by resistance R 19 one tunnel, and another road is connected with the output of IC1B by diode D8;
The input of IC1B is leaded up to diode D6 and is connected with the output of IC1D, and another road is connected with power supply by resistance R 6, capacitor C 7, output connection triggering rectifier and through resistance R 4 ground connection;
The input of IC1C is connected with power supply by resistance R 8, capacitor C 8, and output is connected with input 12 pin of IC1D.
5. photoacoustic dual-controlled delay switch according to claim 3, it is characterized in that described rectifier mainly comprises silicon controlled rectifier SCR1 and SCR2, wherein, SCR1 leads up to that voltage stabilizing didoe VD2 connects and trigger SCR2, and another road is power supply power supply and ground connection by resistance R 18, diode D5.
6. photoacoustic dual-controlled delay switch according to claim 3 is characterized in that:
Described power supply leads up to also that resistance R 10 is connected with the in-phase input end of IC2A and by resistance R 11 ground connection, and another road is connected with the in-phase input end of IC2B by resistance R 14 and passes through resistance R 15 ground connection;
The inverting input of IC2A is leaded up to R12 and is connected with the output of IC2A, and another road is by resistance R 13 ground connection;
The inverting input of IC2B is leaded up to resistance R 16 and is connected with the output of IC2B, and another road is by resistance R 17 ground connection;
The input of IC1A is also by resistance R 7 ground connection;
The positive pole of Electret condenser microphone also is connected minus earth by resistance R 9 with power supply.
7. photoacoustic dual-controlled delay switch according to claim 1 is characterized in that also comprising piezo-resistance and bridge rectifier, and the input of bridge rectifier and piezo-resistance also connect, and output is power supply power supply and ground connection by the supply voltage circuit.
8. photoacoustic dual-controlled delay switch according to claim 7 is characterized in that described supply voltage circuit comprises filter C1, voltage stabilizing didoe VD1 and resistance R 1, R2.
9. photoacoustic dual-controlled delay switch according to claim 7 is characterized in that described bridge rectifier is made up of rectifier diode D1, D2, D3, D4.
10. according to each described photoacoustic dual-controlled delay switch among the claim 1-9, it is characterized in that described low consumed power operational amplifier is integrated operational amplifier TLV27L2, Schmidt trigger adopts HEF4093.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201019581U CN202026518U (en) | 2011-04-08 | 2011-04-08 | Sound and light controlled time delay switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201019581U CN202026518U (en) | 2011-04-08 | 2011-04-08 | Sound and light controlled time delay switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202026518U true CN202026518U (en) | 2011-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201019581U Expired - Fee Related CN202026518U (en) | 2011-04-08 | 2011-04-08 | Sound and light controlled time delay switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202026518U (en) |
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2011
- 2011-04-08 CN CN2011201019581U patent/CN202026518U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20140408 |