CN2096166U - Sound and optic controlled automatic switch - Google Patents

Abstract

The utility model relates to a sound and optic controlled automatic switch which comprises a sound control circuit, an optic control circuit, a delay circuit, a zero cross voltage flip-flop circuit, etc. When light is strong, the utility model can automatically cut off electricity; when no light exists, the utility model is controlled by sound; when the switch is started, the voltage is equal to zero; a lamp can be turned off in a time delay mode. The optic control sensitivity, the sound control sensitivity and the delay time of the utility model can be adjusted. The utility model solves the problem that the electric fire fighting radiation and the load of a common switch, such as a lamp bulb, are started, the larger surge current needs to be loaded. The service life of a lamp bulb is extended, the electrical energy is saved, and the safety of electric equipment is improved. The utility model is a full-automatic control switch with a high performance price ratio.

Description

Sound and optic controlled automatic switch

The utility model photoacoustic dual-controlled automatic switch belongs to electric switchgear.

Existing automatic energy saving switch, generally be to use a plurality of integrated circuits and other device to realize, as Chinese patent CN8703806U described " the two empty control time-delay energy-saving illumination switches of acousto-optic ", this switch has adopted an extensive CMOS acoustic control integrated circuit block, one two input four NAND gate and one two input three XOR gate and two triodes and other device, make the circuit complexity, cost is higher.In addition, the light-operated part of this switch does not have feedback control loop, thereby only is applicable to the time-delay illumination, can not be used for long-term illumination control usefulness, and its range of application is restricted.

The purpose of this utility model provides several (like products), and compared with prior art circuit is more simple, cost is lower, turn on and off the AC power of power consumption equipment when photoacoustic dual-controlled with better function, no-voltage, make it both can be used for delaying time and also can be used for long-time the disconnection or the photoacoustic dual-controlled automatic switch of closed control, and have easy for installation and high cost performance.

The utility model photoacoustic dual-controlled automatic switch comprises load DZ, sonic detection amplifying circuit 1, photoelectric switching circuit 2, delay circuit 3, zero passage voltage circuits for triggering 4, light-operated feedback loop 5, controllable silicon 6, power circuit 7.The external voice signal through sonic detection amplifying circuit 1 finish sound to the conversion of the signal of telecommunication after delay circuit 3 is delivered to the control utmost point of controllable silicon 6 at last, the outlet line of zero passage voltage circuits for triggering 4 links to each other with the outlet line of delay circuit 3, photoelectric switching circuit 2 or be connected between the electronic circuit of this switch, or the outlet line of photoelectric switching circuit 2 links to each other with the outlet line of this switch sections element circuit, and light-operated feedback loop 5 is arranged between the outlet line of the photoelectric switching circuit 2 and the controllable silicon 6 control utmost points.Here power circuit 7 provides the required power supply of this switch, sonic detection amplifying circuit 1 is to utilize microphone to detect outside voice signal.And be enlarged into the signal of telecommunication by this circuit conversion.Photoelectric switching circuit 2 is brightness situations of utilizing the electrooptical device testing environment.When light intensity, forbid that DC power supply connects or forbid that the control that the signal of telecommunication that voice signal is converted to successfully is delivered to controllable silicon 6 extremely goes up, make the control utmost point of controllable silicon 6 can not obtain suitable triggering signal; When a little less than the light, automatically connect DC power supply or allow electrical signal transfer that voice signal converted to the control end of controllable silicon 6, make can obtain suitable triggering signal on the control end of controllable silicon 6.Delay circuit 3 is according to the signal of telecommunication situation that circuit passed over of front, make delay capacitor C be recharged or discharge or remain unchanged, when sonic detection amplifying circuit 1 does not have electrical signal transfer to come, the output of delay circuit 3 can not make the control utmost point of controllable silicon 6 obtain suitable triggering level, when the signal of telecommunication of sonic detection amplifying circuit 1 is passed over, the output of delay circuit 3 can be triggered the control end of controllable silicon 6 maybe can obtain suitable triggering signal, make delay circuit 3 be in the time-delay state, if continue to have the acoustic signals input, the delay time of delay circuit 3 will extend during the time-delay state.Zero passage voltage circuits for triggering 4 and light-operated feedback loop 5 have also been designed in the back of delay circuit 3, when allowing the signal of previous circuit, photoelectric switching circuit 2 is delivered to the silicon controlled control end, be in the time-delay control period at delay circuit 3, during beginning, when the voltage of pulsafeeder is higher than a certain predetermined voltage, the zero passage voltage circuits for triggering are exported first reference level, it makes the triggering signal clamper of delay circuit near certain current potential, make the control end of controllable silicon 6 not to be triggered, power consumption equipment can not energized, when the change in voltage of pulsafeeder is near zero level, second level signal of zero passage voltage circuits for triggering output, the output signal of delay circuit be able to by, obtained suitable triggering signal in the control extremely of controllable silicon 6, power consumption equipment is switched on when no-voltage.After the power supply of power consumption equipment is switched on, silicon controlled two input terminal voltages approach zero volt, so zero passage voltage circuits for triggering 4 are kept second level, the output signal of delay circuit 3 can successfully arrive the control end of controllable silicon 6, keeps the power turn-on of power consumption equipment.The light-operated feedback loop 5 of delay circuit 3 back, its effect is after making photoelectric switching circuit 2 be switched on (being lighted as lighting) at the power supply of controlled load DZ, still the signal of telecommunication that can allow to be produced by audio signal passes through, so that time delayed signal constantly is provided for delay circuit 3, make it can be used for the occasion of long-time control.When delay circuit 3 arrives its delay times at the end, silicon controlled control is extremely gone up and can not be obtained suitable triggering signal, and when alternating voltage zero-crossing, controllable silicon ends, and the power supply of power consumption equipment is turned off, thereby has realized the purpose of zero-pressure shutoff.

The utility model photoacoustic dual-controlled automatic switch, owing to adopted the photoelectric switching circuit 2 of band feedback control loop 5, thereby can realize the high light outage automatically, unglazed acoustic control, after power supply is switched on, take from the feedback signal of timing circuit 3 outputs, with the output level clamper of photoelectric switching circuit 2 at the darker state of light, when there is the sound input feasible outside, the delay time lengthening of delay circuit, the power consumption equipment power supply can be connected for a long time, delay circuit 3 has guaranteed that the control that can be used to delay time of this switch can be used for the occasion that needs long-time control and can only sound discontinuously again, zero passage voltage circuits for triggering 4 eliminated that electricity sparking that general switch produces is disturbed when starting and cutting out and part electrical equipment in the energized phenomenon that increases power supply suddenly of moment, the startup of power consumption equipment is produced near exchanging zero-pressure with closing all, prolong the life-span of power consumption equipment, and had the function that has a power failure and turn off the light.This photoacoustic dual-controlled automatic switch, except control utilizes controllable silicon and Sensitive Apparatus, owing to only need use triode or common amplifier and only need diode, resistance, capacitor element, circuit and simple, cost is very low, thereby is convenient to popularize and promote very much.

Solution of the present utility model can further describe with following accompanying drawing.

Fig. 1 is a functional-block diagram of the present utility model.

Fig. 2, Fig. 3, Fig. 6 are the specific embodiments that adopts integrated transporting discharging.

Fig. 4, Fig. 5 are that integrated transporting discharging and triode mix the specific embodiment of using.

Fig. 7, Fig. 8 are the specific embodiments that adopts triode.

Fig. 9 to Figure 15 is 7 kinds of element circuit figure (part that comprises light-operated loop 5) of photoelectric switching circuit 2.

Figure 16 to Figure 21 is 6 kinds of element circuit figure of delay circuit 3.

Figure 22 to Figure 26 is 5 kinds of element circuit figure of zero passage voltage circuits for triggering.

Figure 27 to Figure 29 is 3 kinds of element circuit figure of power circuit 7.

Here at first functional-block diagram shown in Figure 1 is described.

In Fig. 1, power circuit 7 is used for providing dc source and the pulsafeeder of switch. Photoelectric switching circuit 2 can be arranged on 5 diverse locations in this switch according to concrete circuit, as shown in phantom in FIG., the break-make of the dc source in it or the gauge tap, perhaps be connected between the part element circuit of on-off circuit, forbid or transmit by the caused signal of telecommunication of sound wave signal, or the outlet line of the part element circuit in the output of photoelectric switching circuit 2 and the on-off circuit links to each other, thus the level by the signal of telecommunication of sound wave signal conversion that impact is transmitted. Delay circuit 3 is used for realizing time-delay control, and zero passage voltage circuits for triggering 4 mainly are to make controllable silicon 6 connect when exchanging zero-pressure and disconnect when exchanging zero-pressure.

For the embodiment of this switch of further instruction, below its part element circuit is analyzed earlier and illustrated.

Fig. 9 to Figure 15 shows the element circuit figure (partial circuit that comprises light-operated backfeed loop 5) of 7 kinds of different enforcements of photoelectric switching circuit 2, their identical point is in these seven circuit: 1. all will utilize electrooptical device D8 to come the light intensity of testing environment, 2. all to utilize unilateral conduction and the feedback device D10 of diode D9 together control device A2 to be controlled, so that this switch is under low light level acoustic control state, can continue to receive voice signal when load power source is connected, make the power supply of load can continue to connect. Its difference is: 1. used control device A2 difference, control device A2 or adopt the combination of the devices such as amplifier and diode or adopt triode. 2. so can form multiple different physical circuit for same control device A2 because the connection of its input pin is different, only show seven kinds of concrete circuit here, only the circuit of Fig. 9 and Figure 11 is described below.

In circuit shown in Figure 9, photoelectric switching circuit 2 comprises resistance R 6, electrooptical device D8, diode D9, D11, amplifier A2, reference voltage source V1 and feedback device D10, wherein resistance R 6 and electrooptical device D8 are in series, and are connected between DC power supply and the ground; The series connection contact of resistance R 6 and D8 links to each other with the anode of diode D9, the negative electrode of D9 is connected the in-phase input end of amplifier A2, feedback device D10 is connected across between the outlet line of the negative electrode of D9 and delay circuit A3, the inverting input of amplifier A2 is connected reference voltage source V1 and goes up the same phase comparator of formation, the negative electrode of diode D11 is connected the output of amplifier A2, and the anode of D9 is connected the output of sonic detection amplifying circuit 1.Here electrooptical device D8 is the power that is used for the light of testing environment, when light intensity, the internal resistance step-down of electrooptical device D8, the series connection contact of R6 and D8 is in low level state, the signal that is delivered to the in-phase input end of amplifier A2 through diode D9 also is a low level, because this level is lower than the reference voltage source V1 of the end of oppisite phase of A2, make the output of amplifier A2 also be low level, if sonic detection amplifying circuit 1 has high level signal output at this moment, then diode D11 is by forward bias, the signal of telecommunication that sound wave is transformed into is absorbed by amplifier A2, delay circuit 3 can not obtain high level signal, if the signal of sonic detection amplifying circuit 1 output is low, delay circuit 3 still can not obtain high level signal, and the silicon controlled control end can not be triggered.When a little less than the light, the internal resistance of electrooptical device D8 uprises the output that makes amplifier A2 and also is high level, if this moment sonic detection amplifying circuit 1 output low level, diode D11 just is reverse biased, delay circuit 3 still can not obtain high level signal, and the silicon controlled control end still can not be triggered, if sonic detection amplifying circuit 1 receives voice signal and exports high level at this moment, then make the silicon controlled control end can obtain suitable triggering level, power supply can be switched on through delay circuit 3.After power supply is switched on, load such as electric light are lighted, the internal resistance of electrooptical device D8 becomes low again, make the series connection contact of R6 and D8 become low level again, but because the negative electrode of diode D9 links to each other with the outlet line of delay circuit 3 through feedback device D10 at this moment, the negative electrode that makes D9 is a high level, diode D9 is reverse biased, the output of amplifier A2 still keeps high level, the signal of telecommunication that extraneous sound wave is converted to can continue to be transferred to delay circuit 3 and get on, and load power source is switched on always, when the external world does not have the voice signal input, when delay circuit 3 arrives its delay time, controllable silicon is ended, and load power source is disconnected, and electrooptical device D8 internal resistance becomes height again, the output of amplifier A2 still is high level, and switch is waited for extraneous sound control signal again.

In circuit shown in Figure 11, photoelectric switching circuit 2 comprises resistance R 6, electrooptical device D8, diode D9, feedback device D10 and triode A2.Resistance R 6 and D8 are in series, and be connected between DC power supply and the ground, the base stage of the negative electrode of R6 and triode A2 and the end of feedback device D10 link to each other, the collector and emitter of triode links to each other with the output of sonic detection amplifying circuit 1 and the input of delay circuit 3 respectively, here the base stage of triode is a low level when light intensity, triode A2 is in cut-off state, no matter whether sonic detection amplifying circuit 1 has signal of telecommunication output, the silicon controlled control end that links to each other with delay circuit 3 all can not obtain suitable triggering signal, when a little less than the light, the base stage of triode A2, emitter is by forward bias.When the signal of telecommunication input set electrode of acoustic signals conversion, triode A2 is in conducting state, the silicon controlled control end that links to each other with delay circuit 3 can obtain suitable triggering signal, the controllable silicon conducting, load power source is connected, and is after load power source is connected, the same with Fig. 9 circuit theory, triode A2 realizes that automatically high light does not transmit the signal of telecommunication that sound wave causes under the acting in conjunction of circuit such as feedback device D10, electrooptical device D8 and diode D9 and sonic detection amplifying circuit 1.The low light level and the signal of telecommunication that has under the sound input state transmission cause by sound.

Electrooptical device D8 in described photoelectric switching circuit 2 or photodiode or phototriode or photo resistance or infrared receiving diode or infrared reception triode or photocell or any other is enough to satisfy the electrooptical device that the light signal that will change changes the signal of telecommunication of variation into.

Feedback device D10 in described photoelectric switching circuit 2 or semiconductor diode or resistance or inductance component or their combination or any device that other not only can transmit interchange but also can transmit direct current signal.

The combination of control device A2 in described photoelectric switching circuit 2 or amplifier and other device such as the combination or the triode of diode or triode.

Figure 16 to Figure 21 shows the element circuit figure of 6 kinds of different concrete enforcements of delay circuit 3, their operation principle all is to utilize the charge-discharge characteristic of capacitor C 4 to carry out, be that the level signal of diode D7 input is when undergoing mutation, cause that capacitor C 4 is by charge or discharge promptly, when the input of D7 returns to original level again, C4 is discharged lentamente by certain loop or is charged, thereby realizes the function of time-delay.Different is that used device and physical circuit slightly had any different, and only Figure 16 and circuit shown in Figure 20 is described here.

Delay circuit 3 shown in Figure 16 comprises diode D7, capacitor C 4, triode A3 and a resistance, the anode of diode D7 or be connected on the outlet line of sonic detection amplifying circuit 1 or with the outlet line of photoelectric switching circuit 2 links to each other, the base stage of another termination triode A3, the base stage of triode A3 and collector electrode and capacitor C 4 are in parallel, the grounded collector of A3, the emitter of A3 links to each other with the positive pole of power supply by a resistance, and the emitter of triode A3 is taken from the output of delay circuit 3.When the high level of sonic detection amplifying circuit 1 output is passed to the anode of diode D7, the D7 conducting, after C4 is charged to certain level, triode A3 is cut off, resistance between the collection emitter-base bandgap grading of A3 is very big, delay circuit 3 output high level, the controllable silicon conducting that can be triggered, electric charge on the capacitor C 4 is by D7 and base stage, the ohmic leakage of inter-collector and discharging, when the prime circuit did not have the high level signal input, the level of C4 descended gradually and makes triode A3 be in conducting state after a period of time, so delay circuit 3 is output as low level, controllable silicon ends, and time-delay finishes.

Delay circuit 3 shown in Figure 20 comprises diode D7, capacitor C 4 and amplifier A3, here D7 and C4 are in series, and be connected between the outlet line and ground of the output of sonic detection amplifying circuit 1 or photoelectric switching circuit 2, the series connection contact of D7 and C4 is connected on the in-phase input end of amplifier A3, the inverting input of A3 is connected on the reference voltage source V2, A3 constitutes same phase comparator, and the output of delay circuit 3 is the output of A3.The operation principle of this circuit and the operation principle of Figure 16 are basic identical.

Figure 22 to Figure 26 shows the element circuit figure of 5 kinds of different concrete enforcements of zero passage voltage circuits for triggering 3, its common ground all is to utilize the resistance R 9 and the R10 of two series connection to form bleeder circuit, when the voltage of two inputs of controllable silicon changes, the contact voltage of these two series resistances also changes, the voltage and the reference data voltage of this variation are compared, pass through comparison circuit, result after taking out relatively links to each other with silicon controlled control polar curve road by a diode, when making the voltage at controllable silicon two ends near zero volt, the output signal of previous stage can be delivered to the silicon controlled control utmost point, its difference is, form the concrete device and the physical circuit of comparison circuit and slightly have any different, only describe here with Figure 22 and Figure 26.

Zero passage voltage circuits for triggering shown in Figure 22 comprise resistance R 8, R9, R10, diode D12, controllable silicon T and triode A4, here resistance R 9 and R10 are in series and are connected between the positive pole and ground of pulsafeeder, the base stage of triode A4 and resistance R 9, the series connection contact of R10 links to each other, emitter links to each other with positive source by a resistance, collector electrode links to each other with ground by a resistance, the negative electrode of diode D12 is connected on the collector electrode, its anode links to each other by the control utmost point G of resistance R 8 and controllable silicon T, silicon controlled positive input terminal and negative input end just are being connected in pulsafeeder respectively, on the negative pole, when pulsafeeder is high voltage, the base stage of A4 also is a high voltage, A4 ends, the negative electrode of D12 is a low level, no matter whether previous stage has high level signal output, the control utmost point of controllable silicon T all can not get suitable triggering level signal, controllable silicon ends, when pulsating voltage is near zero volt, the base stage of A4 is a low level, the A4 conducting, the negative electrode of D12 is a high level, this moment is only when previous stage is output as high level signal, controllable silicon T just conducting load power source is switched on, after controllable silicon conducting a period of time, if previous stage is output as zero, and have on the controllable silicon T when electric current flows through greatly, still conducting of controllable silicon T is when pulsafeeder voltage is zero once more, controllable silicon T ends, and load power source turn-offs when zero-pressure.

Zero passage voltage circuits for triggering shown in Figure 26 comprise resistance R 8, R9, R10, diode D12, controllable silicon T and amplifier A4, here resistance R 9 and R10 are in series and are connected between the positive pole and ground of pulsafeeder, the inverting input of amplifier A4 is connected R9, on the series connection contact of R10, in-phase input end meets reference voltage source V3, the output of amplifier A4 links to each other with the negative electrode of diode D12, its anode extremely links to each other with the control of controllable silicon T by R8, amplifier A4 constitutes anti-phase comparator, silicon controlled just, negative input end respectively with pulsafeeder just, negative input is extremely continuous, when pulsafeeder is zero, during previous stage circuit output high level signal, the control utmost point of controllable silicon T just can obtain suitable triggering signal, the controllable silicon conducting, load power source is switched on, and carries out when the silicon controlled shutoff also is zero-pressure with Figure 22 is the same.

Figure 27 to Figure 29 shows 3 kinds of different concrete enforcement circuit of DC power supply circuit 7.

The advantage of Figure 27 circuit is, switch is a single line turnover switch, easy for installationly can directly substitute existing switch, and owing to it self has charging circuit, so prolong greatly the useful life of battery, sound controling sensitivity can be done very highly.

The advantage of Figure 28 circuit is owing to be the full-wave rectification charging, so the ripple of DC power supply is smaller, by change over switch K, can also use as charger.

The advantage of Figure 29 circuit is, utilizes amplifier and triode to constitute a series connection voltage-stabilized power supply circuit, makes that the DC power supply performance is more stable, and sound controling sensitivity can be done than higher.

Sonic detection amplifying circuit 1 in Fig. 1 generally comprises microphone M, and capacitance-resistance coupling circuit and direct current or AC and DC amplifying circuit or acoustic control integrated circuit are formed.It is by the acoustic signals of microphone M testing environment, utilize the capacitance-resistance coupling circuit to realize unwanted signal or noise signal are decayed, useful signal amplifies by amplifying circuit or sound control circuit, realizes conversion and enlarging function from the voice signal to the signal of telecommunication.

At last, we carry out more detailed explanation in conjunction with Fig. 2 specific embodiment again.Embodiment to Fig. 3 to Fig. 8 describes.

In photoacoustic dual-controlled automatic switch shown in Figure 2, load DZ and bridge rectifier are connected in the AC power circuit, power circuit 7 comprises bridge rectifier diode D1～D4, resistance R 1, capacitor C 1, diode D6, voltage stabilizing didoe D5, battery Ec, the output of bridge rectifier is by capacitance resistance ware R1 parallel with one another, C1 and diode D6 give battery Ec charging and provide switch required DC power supply, diode D5 is connected between capacitor C 1 and the ground, when load power source is connected, D6 is reverse biased, the required DC power supply of switch when battery provides the AC power of load to connect, sonic detection amplifying circuit 1 comprises resistance R 2, R3, R4, R5, capacitor C 3 and microphone M and amplifier A1, the acoustical signal of microphone M testing environment, input to the in-phase input end of amplifier A1 after in-phase amplification circuit amplifies through the capacitance-resistance coupling circuit, input to the input of delay circuit 3, delay circuit 3 comprises diode D7, capacitor C 4 and amplifier A3, D7 and C4 are in series, and be connected the output of sonic detection amplifying circuit 1, D7 links to each other with the in-phase input end of amplifier A3 with the series connection contact of C4, the inverting input of A3 is connected on the reference voltage source V2, that is on the series connection contact of R12 and R13, A3 constitutes same phase comparator, when the A1 of sonic detection amplifying circuit 1 output is high level, capacitor C 4 is charged to high level, the output of A3 becomes high level, delay circuit is started working, when the output of A1 is a low level, and C4 is when still being high level, circuit is in the time-delay state, electric charge on the C4 constitutes discharge loop through the ohmic leakage of D7 and A3, after a period of time, when the level on the C4 is lower than reference voltage source V2, A3 is output as low, and time-delay finishes.When the output of A1 is a low level, when the electric charge on the C4 also is substantially zero, the A3 output of delay circuit 3 still is a low level, photoelectric switching circuit 2, comprise resistance R 6, diode D9, D12, feedback device is diode D10, photoelectric receiving diode D8 and amplifier A2, here resistance R 6 and electrooptical device D8 are in series, the negative electrode of D9 is connected the in-phase input end of amplifier A2, feedback device D10 is connected across between the anode of the in-phase input end of A2 and diode D12, and the inverting input of amplifier A2 is connected reference voltage source V1 and goes up and constitute same phase comparator.The negative electrode of diode D9 is connected on the anode of diode D12, the anode of D12 links to each other with the output of A3 by a resistance, here photoelectric receiving diode D8 is used for the power of the light of testing environment, when light intensity, D8 internal resistance step-down, the output that makes A2 is a low level, when the output of A3 is high level, diode D11 is by forward conduction, the control utmost point of controllable silicon T can not obtain suitable triggering level signal, and controllable silicon T ends, when the output of A3 is low level, the control utmost point of controllable silicon T still can not obtain suitable triggering signal, and controllable silicon T still ends.When a little less than the light, the D8 internal resistance raises, the A2 output is a high level, if this moment the A3 high level, controllable silicon T control very likely obtains suitable triggering signal, when the pulsating voltage zero passage, the controllable silicon conducting, feedback device D10 makes the output of A2 still be high level, make the output signal of A3 can be delivered to the controllable silicon T control utmost point, keep the silicon controlled conducting, when A3 is output as low level, controllable silicon T ends when pulsafeeder voltage is zero, load power source is turned off, zero passage voltage circuits for triggering 4 comprise resistance R 8, R9, R10, diode D12, amplifier A4 and controllable silicon T, here resistance R 9 and R10 are in series, and just be connected pulsafeeder, on the negative pole, the series connection contact of R9 and R10 links to each other with the inverting input of amplifier A4, its in-phase input end is connected on the reference voltage source V3, the output of A4 links to each other with the negative electrode of D12, the anode of D12 extremely links to each other by the control of resistance R 8 and controllable silicon T, the anode of controllable silicon T and negative electrode respectively with pulsafeeder just, negative pole links to each other, when pulsafeeder voltage is higher, A4 is output as low level, no matter the level of previous stage output is height or low, all can not make the control utmost point G of controllable silicon T obtain suitable triggering level, when pulsafeeder voltage is near zero level, A4 is output as high level, at this moment, when having only previous stage to be output as high level, controllable silicon T just can obtain suitable triggering level, make the controllable silicon conducting, load power source is switched on, so the connection of switch is a little less than light, under the sound double condition, could realize.

Photoacoustic dual-controlled automatic switch shown in Figure 3 and the difference of Fig. 2 are that the output of photoelectric switching circuit 2 is connected on the input of delay circuit 3, and other circuit is substantially the same, and the circuit working principle is also basic identical.

Photoacoustic dual-controlled automatic switch shown in Figure 4 and the difference of Fig. 3 have 2 points: 1. the sonic detection amplifying circuit has increased the same phase comparator circuit of one-level, its advantage is to make sound controling sensitivity higher, 2. the control device A2 on the photoelectric switching circuit has adopted triode A2, other circuit is also substantially the same, and the circuit working principle is also basic identical.

Photoacoustic dual-controlled automatic switch shown in Figure 5 also has 2 points with the difference of Fig. 2: 1. power circuit is different, and what adopt here is half-wave rectifier voltage circuit, and it also can adopt full-wave rectification voltage stabilizing circuit or other voltage stabilizing circuit certainly.2. photoelectric switching circuit 2 is connected in the DC power supply circuit, and its advantage is that triode A2 ends when light intensity, and amplifier can not get power supply, and has prolonged the useful life of amplifier, and other circuit is substantially the same.

Photoacoustic dual-controlled automatic switch shown in Figure 6 also has 2 points with the difference of Fig. 2: 1. power circuit is different, and what adopt here is half-wave rectifier voltage circuit.2. load DZ is arranged between the positive pole of silicon controlled anode and rectifying output circuit, and other circuit is identical with Fig. 3.

Photoacoustic dual-controlled automatic switch shown in Figure 7 and the difference of Fig. 2 are bigger, their power circuit 7 is identical, the two-staged transistor amplifying circuit that the capacitance-resistance coupling apparatus spare that sonic detection amplifying circuit 1 mainly is made up of microphone M, resistance and electric capacity in this circuit and triode T1, T2 form is formed, the control device of photoelectric switching circuit 2 is triode A2, delay circuit 3 comprises diode D7, capacitor C 4 and triode A3, and the zero passage voltage circuits for triggering comprise resistance R 8, R9, R10, diode D12, triode A4 and controllable silicon T.Although the difference of this circuit concrete form and Fig. 2 is bigger, the circuit of operation principle fundamental sum Fig. 2 is identical.

Photoacoustic dual-controlled automatic switch shown in Figure 8 is similar substantially to Fig. 7 circuit, different has 3 points, 1. power circuit 7 differences, what Fig. 8 circuit adopted is the full-wave rectification voltage stabilizing circuit, 2. photoelectric switching circuit 2 is connected between the input of the output of DC power supply and the required DC power supply of this switch.3. load DZ is connected between the output of silicon controlled anode and rectification circuit, and the operation principle of this circuit and circuit shown in Figure 7 are basic identical.

Triode in above-mentioned described circuit or transistor or fet or any other can satisfy other triode of circuit function.

Protection range of the present utility model is not limited to the foregoing description, and its protection range is determined by claim.

Claims (10)

1, the photoacoustic dual-controlled automatic switch, comprise load DZ, sonic detection amplifying circuit 1, power circuit 7, it is characterized in that described photoacoustic dual-controlled automatic switch also comprises photoelectric switching circuit 2, delay circuit 3, zero passage voltage circuits for triggering 4, light-operated feedback loop 5, controllable silicon 6, the external acoustic waves signal is finished sound after the conversion of the signal of telecommunication through sonic detection amplifying circuit 1, be delivered to the control utmost point of controllable silicon 6 at last through delay circuit 3, the outlet line of zero passage voltage circuits for triggering 4 links to each other with the outlet line of delay circuit 3, photoelectric switching circuit 2 or be connected between the electronic circuit of this switch, or the outlet line of photoelectric switching circuit 2 links to each other with the outlet line of the part element circuit of this switch, and light-operated feedback loop 5 is arranged between the incoming line of the photoelectric switching circuit 2 and the controllable silicon 6 control utmost points.

2, photoacoustic dual-controlled automatic switch according to claim 1, it is characterized in that described photoelectric switching circuit 2 comprises resistance R 6, electrooptical device D8, diode D9, feedback device D10, triode A2, wherein resistance R 6 and electrooptical device D8 are in series, and be connected between the output B3 of DC power supply and ground or the input B1 of DC power supply and A2 or DC power supply and A2, the series connection contact of resistance R 6 and D8 links to each other with the anode of diode D9, the negative electrode of diode D9 links to each other with another input B2 of A2, feedback device D10 is connected across on the outlet line of the negative electrode of D9 and delay circuit 3, the input B1 of A2, output B3 or be connected on power circuit 7 and sonic detection amplifying circuit 1 between, or be connected between sonic detection amplifying circuit 1 and the delay circuit 3, or be connected between the control utmost point of delay circuit 3 and controllable silicon 6, or be connected between power circuit 7 and the delay circuit 3, or be connected between power circuit 7 and the controllable silicon 6, when ambient light dark/when bright, allow/forbid the output signal on institute's connecting circuit to be delivered on the next stage circuit.

3, photoacoustic dual-controlled automatic switch according to claim 1, it is characterized in that described photoelectric switching circuit 2 or comprise resistance R 6, electrooptical device D8, diode D9, D11, feedback device D10, the circuit of amplifier A2, wherein resistance R 6 and electrooptical device D8 are in series, and be connected between DC power supply and the ground, the series connection contact of resistance R 6 and D8 links to each other with the anode of diode D9, the negative electrode of diode D9 links to each other with the in-phase input end of A2, feedback device D10 is connected across on the outlet line of the negative electrode of D9 and delay circuit 3, the inverting input of A2 meets reference voltage source V1 or is connected on the output of A2, the output of A2 links to each other with the negative electrode of diode D11, the anode of diode D11 or be connected on the outlet line of sonic detection amplifying circuit 1, or be connected on the outlet line of delay circuit 3, when ambient light dark/when bright, allow/forbid the output signal on institute's connecting circuit to be delivered on the next stage circuit.

4, photoacoustic dual-controlled automatic switch according to claim 1, it is characterized in that delay circuit 3 comprises diode D7, capacitor C 4, triode A3, resistance R, diode D7 and capacitor C 4 are in series, and be connected between the output and ground of previous stage, the series connection contact of D7 and C4 links to each other with the F1 pin of triode A3, and the F2 pin of triode A3 links to each other with dc power anode by resistance R, the F3 pin links to each other with ground by a resistance, and the output of delay circuit is connected on the F2 pin or F3 pin of A3.

5, photoacoustic dual-controlled automatic switch according to claim 1, it is characterized in that delay circuit 3 comprises diode D7, capacitor C 4, the circuit of amplifier A3, diode D7 and capacitor C 4 are in series, and are connected between the output and ground of previous stage, and the series connection contact of D7 and C4 links to each other with the input of amplifier A3, another input of A3 or link to each other with reference voltage source V2 or link to each other with the output of A3, the output of delay circuit is exactly the output of A3.

6, photoacoustic dual-controlled automatic switch according to claim 1, it is characterized in that zero passage voltage circuits for triggering 4 comprise resistance R 9, R10, diode D12, triode A4 and controllable silicon 6, resistance R 9, R10 is in series and is connected on two inputs of silicon controlled, R9, the series connection contact of R10 links to each other with the H1 pin of triode A4, the other bipod H2 of A4, H3 links to each other with ground by the positive pole of resistance and DC power supply respectively, the negative electrode of diode D12 or link to each other with the H2 pin or with the H3 pin, control extremely links to each other or extremely links to each other with SCR control by a resistance anode of D12 with silicon controlled, and other two inputs of silicon controlled are connected in respectively on the two ends of pulsafeeder.

7, photoacoustic dual-controlled automatic switch according to claim 1, it is characterized in that zero passage voltage circuits for triggering 4 or comprise resistance R 9, R10, diode D12, the circuit of amplifier A4 and controllable silicon 6, resistance R 9, R10 is in series and is connected on two inputs of controllable silicon 6, R9, the input of the series connection contact of R10 and amplifier A4 links to each other, another input links to each other with reference voltage source V3, the output of amplifier A4 links to each other with the negative electrode of diode D12, and the anode of D12 or the control that is connected controllable silicon 6 are extremely gone up or extremely linked to each other with the control of controllable silicon 6 by a resistance.

8, photoacoustic dual-controlled automatic switch according to claim 1, it is characterized in that light-operated feedback loop 5 comprises a feedback device D10, light-operated feedback loop 5 is arranged between the outlet line of the negative electrode of D9 and delay circuit 3, feedback device D10 or diode or resistance or inductance component or their combination.

9,, it is characterized in that described electrooptical device D8 or photo resistance or photodiode or phototriode or infrared receiving diode or infrared triode or the photocell accepted according to claim 2 or 3 described photoacoustic dual-controlled automatic switches.

10, photoacoustic dual-controlled automatic switch according to claim 1 is characterized in that described amplifier device is integrated operational amplifier or integrated comparator.

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