CN201846328U - Infrared induction voice controlled energy-saving switching circuit - Google Patents
Infrared induction voice controlled energy-saving switching circuit Download PDFInfo
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- CN201846328U CN201846328U CN2010205967140U CN201020596714U CN201846328U CN 201846328 U CN201846328 U CN 201846328U CN 2010205967140 U CN2010205967140 U CN 2010205967140U CN 201020596714 U CN201020596714 U CN 201020596714U CN 201846328 U CN201846328 U CN 201846328U
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Abstract
The utility model discloses an infrared induction voice controlled energy-saving switching circuit, which comprises a direct current output power circuit, a voice acquiring circuit, an infrared sensing circuit, a power amplifying circuit, a photosensitive device switching circuit, a monostable delay circuit, an electric control switching circuit and a switch. The direct current output power circuit is connected with the voice acquiring circuit, the infrared sensing circuit, the power amplifying circuit, the photosensitive device switching circuit, the monostable delay circuit and the electric control switching circuit respectively and provides a working current. The outputs of the infrared sensing circuit and the voice acquiring circuit is in parallel connection with the power amplifying circuit, the power amplifying circuit is in series connection with the photosensitive device switching circuit, the monostable delay circuit and the electric control switching circuit sequentially, and the eelctric control switching circuit is connected with and control the switch. The infrared induction voice controlled energy-saving switching circuit has the advantages that the voice and infrared sensing control the switch to open simultaneously, manual and automatic operations can be converted conveniently, safety and flexibility are improved and operation speed is higher.
Description
Technical field
The utility model relates to a kind of ON-OFF control circuit, particularly a kind of energy-saving switch circuit of infrared induction acoustic control.
Background technology
Along with the proposition of target for energy-saving and emission-reduction, increasing building materials, electricly all study and improve towards the direction of energy savings.And in the productive life, switch plays crucial effects in electric loading.Automatically battery-conserving switch constantly is developed and utilizes.And present automatic battery-conserving switch adopts single sound collection circuit or single infrared induction circuit to connect 555 time base apparatus spares more, and its control circuit part and Be Controlled circuit part all adopt single controllable silicon or single relay to isolate.Its weak point is: 1, adopt single acoustic control function, sending certain sound at night when quiet comes control switch to bother neighbour's rest easily, adopt single infrared induction function, also can clothing more for a long time because of responding to insensitive many troubles that causes the user, 2, when user's inconvenience is sent the sound continually or appear at the infrared induction scene, need but to be inconvenient to realize opening for a long time of switch, 3, adopt single controllable silicon or relay to carry out electrical isolation, when running into isolating device and cause input circuit to follow the damage of output loop short circuit or isolating device itself to produce spark or high temperature because of external force, but fire hazard.
The utility model content
At the deficiencies in the prior art part, the utility model provide the common control of a kind of infrared induction and sound, use two relays to realize follow-on automatic electricity-saving on-off circuit input circuits and twice isolation of output loop, can hand switch.
To achieve these goals, the technical solution adopted in the utility model is: a kind of energy-saving switch circuit of infrared induction acoustic control comprises dc output power circuit, sound collection circuit, infrared induction circuit, power amplification circuit, light-sensitive device switching circuit, monostable time delay circuit, electric-controlled switch circuit, switch; Described dc output power circuit is connected with sound collection circuit, infrared induction circuit, light-sensitive device switching circuit, power amplification circuit, monostable time delay circuit, electric-controlled switch circuit respectively, and operating current is provided; The output-parallel of described infrared induction circuit, sound collection circuit is in power amplification circuit, and this power amplification circuit is connected successively with light-sensitive device switching circuit, monostable time delay circuit, electric-controlled switch circuit, and the electric-controlled switch circuit connects and the control switch action.
Described switch is a manual/automatic GSS Gear Select Switch, the electric-controlled switch circuit connects and controls the automatic gear one tunnel of described manual GSS Gear Select Switch, and the manual gear one tunnel of described manual GSS Gear Select Switch electrically connects with the dc output power circuit.
Described electric-controlled switch circuit preferably adopts the electromagnetic contact switching circuit, described electromagnetic contact switching circuit is that the first relay relay R ELAY1 drives reverse-blocking tetrode thyristor, reverse-blocking tetrode thyristor drives the control circuit of the second relay relay R ELAY2 then, and the described second relay relay R ELAY2 is a polarized relay.
The utility model adopts technique scheme, and the beneficial effect that has is:
1, adopts the collection of the parallel way realization signal of infrared induction circuit and sound Acquisition Circuit, the multiple mode that provides user's control switch to open.
2, adopt the function between SP3T switch realization hand switch and the automatic switch to change, when electrical equipment need be opened for a long time, use the convenient user's of hand switch use, when electrical equipment need cut out for a long time, use manually with saves energy.
3, the electric-controlled switch circuit of Cai Yonging is that the first relay relay R ELAY1 drives reverse-blocking tetrode thyristor, reverse-blocking tetrode thyristor drives the control circuit of the second relay relay R ELAY2 then, when one of them relay causes input circuit to follow output loop short circuit or itself damage to produce spark or high temperature because of external force, another relay still plays the effect of electrical isolation, has strengthened the fail safe of using.
4, the electromagnetic contact switching circuit second relay relay R ELAY2 is a polarized relay, has highly sensitive and outstanding advantage quick action.
Description of drawings
Fig. 1 is the theory diagram of the preferred embodiment of the multi-functional delay switch circuit of the light-operated manual control of infrared induction acoustic control of the present utility model;
Fig. 2 is the circuit theory diagrams of the preferred embodiment of the multi-functional delay switch circuit of the light-operated manual control of infrared induction acoustic control of the present utility model.
Embodiment
Now with embodiment the utility model is further specified in conjunction with the accompanying drawings.
A kind of basic embodiment of energy-saving switch circuit of infrared induction acoustic control comprises dc output power circuit, sound collection circuit, infrared induction circuit, power amplification circuit, light-sensitive device switching circuit, monostable time delay circuit, electric-controlled switch circuit, switch; Described dc output power circuit is connected with sound collection circuit, infrared induction circuit, light-sensitive device switching circuit, power amplification circuit, monostable time delay circuit, electric-controlled switch circuit respectively, and operating current is provided; The output-parallel of described infrared induction circuit, sound collection circuit is in power amplification circuit, and this power amplification circuit is connected successively with light-sensitive device switching circuit, monostable time delay circuit, electric-controlled switch circuit, and the electric-controlled switch circuit connects and the control switch action.Wherein, the electric-controlled switch circuit can be selected the thyristor switch circuit of relay control for use, and switch can be selected general single-pole double-throw switch (SPDT) (common on-off switch) for use.
As shown in Figure 1, be the energy-saving switch circuit of the infrared induction acoustic control of the utility model preferred embodiment, wherein, the electric-controlled switch circuit adopts the electromagnetic contact switching circuit, and switch adopts manual GSS Gear Select Switch.It specifically comprises: dc output power circuit 101, sound collection circuit 102, infrared induction circuit 103, light-sensitive device switching circuit 104, power amplification circuit 105, monostable time delay circuit 106, electromagnetic contact switching circuit 107, manual GSS Gear Select Switch 108; Described dc output power circuit 101 is connected with sound collection circuit 102, infrared induction circuit 103, light-sensitive device switching circuit 104, power amplification circuit 105, monostable time delay circuit 106, electromagnetic contact switching circuit 107 respectively, and operating current is provided; The output-parallel of described infrared induction circuit 102, sound collection circuit 103 is in power amplification circuit 104, this power amplification circuit 104 is connected successively with light-sensitive device switching circuit 105, monostable time delay circuit 106, electromagnetic contact switching circuit 107, electricity electromagnetic contact switching circuit 107 connects and controls the automatic gear one tunnel of described manual GSS Gear Select Switch 108, and the manual gear one tunnel of described manual GSS Gear Select Switch 108 electrically connects with dc output power circuit 101.Described manual GSS Gear Select Switch 108 switches to automatic gear one tunnel, then can be by its switch on and off action of electromagnetic contact switching circuit 107 controls; Described manual GSS Gear Select Switch 108 switches to manual gear one tunnel, then can directly control its switch on and off.
As shown in Figure 2, be the physical circuit schematic diagram of the energy-saving switch circuit of the infrared induction acoustic control of the utility model preferred embodiment.Wherein, described switch is a manual/automatic GSS Gear Select Switch KA1, it is a SP3T switch, its 1 pin connects external communication electrical input A, 2 pin connect 1 pin of the output loop contact switch of the second relay relay R ELAY2 in the electromagnetic contact switching circuit, 3 pin are put sky, and 4 pin connect dc output power circuit input end C.
The electromagnetic contact switching circuit is by the first relay relay R ELAY1 input circuit coil windings L1, the first relay relay R ELAY1 output loop contact switch, the second relay relay R ELAY2 input circuit coil windings L2, the second relay relay R ELAY2 output loop contact switch polarizes, resistance R 7-R10, electrochemical capacitor C6-C9, one-way SCR VT2, VT3 constitutes, wherein the second relay relay R ELAY2 is a polarized relay, 3 pin of time base apparatus spare IC2 in the relay 1 input circuit coil windings L1 one termination monostable time delay circuit, other end ground connection, the first relay relay R ELAY1 output loop contact switch pin 1 meets reference voltage V CC, pin 2 is by the control utmost point of resistance R 7 orders to controllable silicon VT2, one end of resistance R 9, resistance R 9 other end ground connection, (cathode and anode directions is with the positive negative direction of supply voltage for electrochemical capacitor C6, C7, C8, the same C6 of the direction of C9) and resistance R 7 parallel connections, electrochemical capacitor C8 and resistance R 9 parallel connections, 1 pin (termination) of the second relay relay R ELAY2 input circuit coil windings L2 connects one-way SCR VT2 anode, 2 pin (centre tap) connect dc output power circuit input end C, 3 pin (another termination) connect one-way SCR VT3 anode, one-way SCR VT2, the negative electrode of VT3 ground connection in parallel, the first relay relay R ELAY1 output loop contact switch, 3 pin are by the control utmost point of resistance R 8 orders to controllable silicon VT3, one end of resistance R 10, resistance R 10 other end ground connection, electrochemical capacitor C7 and resistance R 8 parallel connections, electrochemical capacitor C9 and resistance R 10 parallel connections, 3 pin of the second relay relay R ELAY2 output loop contact switch connect dc output power circuit input end C, 1 pin connects an end of electrical appliance, 2 pin connect light-emitting diode D8 by resistance R 15, end behind the D9 reverse parallel connection, the other end and the diode D8 of the defeated end of external communication electricity B electrical appliance, the other end behind the D9 reverse parallel connection also connects external communication electrical input B; The first relay relay R ELAY1 realizes the control of time base apparatus spare IC2 to one-way SCR VT2, VT3, the network that resistance R 7-R10, electrochemical capacitor C6-C9 form plays dividing potential drop and filtering separately, and one-way SCR VT2, VT3 have realized the isolation of light current circuit to the forceful electric power circuit of the second relay relay R ELAY2 input circuit.
Described infrared induction circuit carries peripheral potentiometer RP1, capacitor C 10 and resistance R 1 by pyroelectric infrared sensor IC1 (having highly sensitive pyroelectric infrared sensor HN911) and constitutes, wherein potentiometer RP1 two ends connect 4 pin and 5 pin of pyroelectric infrared sensor IC respectively, 2 pin of pyroelectric infrared sensor IC1 connect the base stage of power amplification circuit triode VT1, an end of capacitor C 1 respectively by resistance R 1, and the other end of capacitor C 1 connects 3 pin and the reference voltage V CC of pyroelectric infrared sensor IC1; RP1 is used to adjust the sensitivity of transducer, and C10 plays jamproof effect, when circuit detects the Infrared that human body sends, to the undersuing of amplifying circuit output pulse width greater than 2s.
Described sound collection circuit is made of microphone MK1 and voltage stabilizing didoe D2 parallel connection, and its voltage stabilizing didoe D2 negative pole one end connects the base stage of power amplification circuit triode VT1, the anodal end ground connection of voltage stabilizing didoe D2; Be used for the vibration signal that collects sound being converted into the signal of telecommunication of triggering and exporting to amplifying circuit.
Described power amplification circuit is a basic cascode level amplifying circuit, comprise triode VT1, resistance R 2-R4, potentiometer RP2, capacitor C 1, diode D1, wherein the base stage of triode VT1 connects the end of potentiometer RP2 by resistance R 2, the other end of potentiometer RP2 connects reference voltage V CC, the collector electrode of triode VT1 is connected with an end of resistance R 3, the positive pole of diode D1 respectively, the other end of R3 connects reference voltage V CC, the negative pole output amplifying signal of diode D1, electrochemical capacitor C1 resistance R 4 is with resistance R 4 parallel connections, its anodal VT1 that connects penetrates level, minus earth; RP1 adjusts the amplifying circuit working point, and point is separated capacitor C 10 and played the bypass effect, and diode D1 eliminates the interference of light-sensitive device switching circuit to power amplification circuit.
Described light-sensitive device switching circuit comprises photo resistance RG1 and resistance R 5, the termination reference voltage V CC of photo resistance RG1, the other end connects the other end ground connection of resistance R 5 with the negative pole of power amplification circuit diode D1, an end of resistance R 5, the pin two of monostable time delay IC circuit 2; Daytime, photo-resistor RG1 is subjected to the available light irradiation to be low resistance, 2 pin of monostable time delay circuit NE555 remain high level and are not triggered, and the photo resistance in evening is 2 pin that output signal that high resistance causes amplifying circuit can be delivered to the time base apparatus spare IC2 of delay circuit.
Described monostable time delay circuit carries peripheral resistance R 6, electrochemical capacitor C2, capacitor C 3 by NE555 time base apparatus spare IC2 and constitutes, wherein 6 pin of time base apparatus spare IC2,7 pin are connected in parallel in the positive pole of electrochemical capacitor C2, an end of resistance R 6, the minus earth of electrochemical capacitor C2, another termination reference voltage V CC of resistance R 6,4 pin, 8 pin of time base apparatus spare IC2 meet reference voltage V CC, 1 pin ground connection, 5 pin are by C3 ground connection, and 3 pin are output; R6, C2 rise discharge and recharge the time-delay used.
Described dc output power circuit is a silicon voltage regulator diode voltage stabilizing circuit, comprise rectifier bridge (D3-D6), resistance R 11, R12, electrochemical capacitor C11, light-emitting diode D9, anti-surge resistance R V1, voltage stabilizing didoe D7, D8, wherein rectifier bridge one input goes into to hold A by resistance R 12 connection dc output power circuit, the other end connects external communication electrical input B, resistance R 11 is in parallel with anti-surge resistance R V1 with the integral body after the light-emitting diode D9 series connection, the one end is connected with external communication electrical input B, the other end goes into to hold C to be connected with the dc output power circuit, voltage stabilizing didoe D7, the negative pole of D8, the positive pole of electrochemical capacitor connects the cathode output end of rectifier bridge, and its another utmost point separately connects the cathode output end of rectifier bridge; Voltage stabilizing didoe D7, when D8 is reverse, bigger electric current changes and only causes less change in voltage, resistance R 12 is a voltage regulation resistance; The dc output power circuit provides 9-12V stabilized voltage power supply.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection range of the present utility model.
Claims (10)
1. the energy-saving switch circuit of an infrared induction acoustic control is characterized in that: comprise dc output power circuit, sound collection circuit, infrared induction circuit, power amplification circuit, light-sensitive device switching circuit, monostable time delay circuit, electric-controlled switch circuit, switch; Described dc output power circuit is connected with sound collection circuit, infrared induction circuit, light-sensitive device switching circuit, power amplification circuit, monostable time delay circuit, electric-controlled switch circuit respectively, and operating current is provided; The output-parallel of described infrared induction circuit, sound collection circuit is in power amplification circuit, and this power amplification circuit is connected successively with light-sensitive device switching circuit, monostable time delay circuit, electric-controlled switch circuit, and the electric-controlled switch circuit connects and the control switch action.
2. the energy-saving switch circuit of infrared induction acoustic control as claimed in claim 1, it is characterized in that: described switch is a manual/automatic GSS Gear Select Switch, the electric-controlled switch circuit connects and controls the automatic gear one tunnel of described manual GSS Gear Select Switch, and the manual gear one tunnel of described manual GSS Gear Select Switch electrically connects with the dc output power circuit.
3. the energy-saving switch circuit of infrared induction acoustic control as claimed in claim 2, wherein said switch, it is characterized in that: described manual GSS Gear Select Switch is a SP3T switch, its 1 pin connects external communication electrical input A, 2 pin connect 1 pin of the output loop contact switch of the second relay relay R ELAY2 in the electromagnetic contact switching circuit, 3 pin are put sky, and 4 pin connect dc output power circuit input end C.
4. the energy-saving switch circuit of infrared induction acoustic control as claimed in claim 1 or 2, it is characterized in that: described dc output power circuit is a silicon voltage regulator diode voltage stabilizing circuit, comprise: rectifier bridge D3-D6, resistance R 11, R12, electrochemical capacitor C11, light-emitting diode D9, anti-surge resistance R V1, voltage stabilizing didoe D7, D8, wherein rectifier bridge one input goes into to hold A by resistance R 12 connection dc output power circuit, the other end connects external communication electrical input B, resistance R 11 is in parallel with anti-surge resistance R V1 with the integral body after the light-emitting diode D9 series connection, the one end is connected with external communication electrical input B, the other end goes into to hold A to be connected with the dc output power circuit, voltage stabilizing didoe D7, the negative pole of D8, the positive pole of electrochemical capacitor connects the cathode output end of rectifier bridge, and its another utmost point separately connects the cathode output end of rectifier bridge.
5. the energy-saving switch circuit of infrared induction acoustic control as claimed in claim 1 or 2 is characterized in that:
Described infrared induction circuit comprises: pyroelectric infrared sensor IC1, potentiometer RP1, capacitor C 10 and resistance R 1, wherein potentiometer RP1 two ends connect 4 pin and 5 pin of IC respectively, 2 pin of pyroelectric infrared sensor IC1 connect the base stage of power amplification circuit triode VT1, an end of capacitor C 1 respectively by resistance R 1, and the other end of capacitor C 1 connects 3 pin and the reference voltage V CC of pyroelectric infrared sensor IC1;
Described sound collection circuit is made of microphone MK1 and voltage stabilizing didoe D2 parallel connection, and its voltage stabilizing didoe D2 negative pole one end connects the base stage of power amplification circuit triode VT1, the anodal end ground connection of voltage stabilizing didoe D2.
6. the energy-saving switch circuit of infrared induction acoustic control as claimed in claim 1 or 2, it is characterized in that: described light-sensitive device switching circuit comprises photo resistance RG1 and resistance R 5, the termination reference voltage V CC of photo resistance RG1, the other end connects the other end ground connection of resistance R 5 with the negative pole of power amplification circuit diode D1, an end of resistance R 5, the pin two of monostable time delay IC circuit 2.
7. the energy-saving switch circuit of infrared induction acoustic control as claimed in claim 1 or 2, it is characterized in that: described power amplification circuit is a basic cascode level amplifying circuit, comprise: triode VT1, resistance R 2-R4, potentiometer RP2, capacitor C 1, diode D1, wherein the base stage of triode VT1 connects the end of potentiometer RP2 by resistance R 2, the other end of potentiometer RP2 connects reference voltage V CC, the collector electrode of triode VT1 respectively with an end of resistance R 3, the positive pole of diode D1 connects, the other end of R3 connects reference voltage V CC, the negative pole output amplifying signal of diode D1, electrochemical capacitor C1 resistance R 4 is with resistance R 4 parallel connections, its anodal VT1 that connects penetrates level, minus earth.
8. the energy-saving switch circuit of infrared induction acoustic control as claimed in claim 1 or 2, it is characterized in that: described monostable time delay circuit comprises: time base apparatus spare IC2, resistance R 6, electrochemical capacitor C2, capacitor C 3, wherein 6 pin of time base apparatus spare IC2,7 pin are connected in parallel in the positive pole of electrochemical capacitor C2, an end of resistance R 6, the minus earth of electrochemical capacitor C2, another termination reference voltage V CC of resistance R 6,4 pin, 8 pin of time base apparatus spare IC2 meet reference voltage V CC, 1 pin ground connection, 5 pin are by C3 ground connection, and 3 pin are output.
9. the energy-saving switch circuit of infrared induction acoustic control as claimed in claim 1 or 2, it is characterized in that: described electric-controlled switch circuit is the electromagnetic contact switching circuit, described electromagnetic contact switching circuit comprises: the first relay relay R ELAY1 input circuit coil windings L1, the first relay relay R ELAY1 output loop contact switch, the second relay relay R ELAY2 input circuit coil windings L2, the second relay relay R ELAY2 output loop contact switch, resistance R 7-R10, electrochemical capacitor C6-C9, one-way SCR VT2, VT3,3 pin of the time base apparatus spare IC2 in the first relay relay R ELAY1 input circuit coil windings L1, the one termination monostable time delay circuit wherein, other end ground connection, the first relay relay R ELAY1 output loop contact switch pin 1 meets reference voltage V CC, pin 2 is by the control utmost point of resistance R 7 orders to controllable silicon VT2, one end of resistance R 9, resistance R 9 other end ground connection, electrochemical capacitor C6 and resistance R 7 parallel connections, electrochemical capacitor C8 and resistance R 9 parallel connections, the termination of the second relay relay R ELAY2 input circuit coil windings L2 connects one-way SCR VT2 anode, centre tap connects dc output power circuit input end C, another termination connects one-way SCR VT3 anode, one-way SCR VT2, the negative electrode of VT3 ground connection in parallel, the first relay relay R ELAY1 output loop contact switch, 3 pin are by the control utmost point of resistance R 8 orders to controllable silicon VT3, one end of resistance R 10, resistance R 10 other end ground connection, electrochemical capacitor C7 and resistance R 8 parallel connections, electrochemical capacitor C9 and resistance R 10 parallel connections, 3 pin of the second relay relay R ELAY2 output loop contact switch connect dc output power circuit input end C, 1 pin connects an end of electrical appliance, 2 pin connect light-emitting diode D8 by resistance R 15, end behind the D9 reverse parallel connection, the other end and the diode D8 of the defeated end of external communication electricity B electrical appliance, the other end behind the D9 reverse parallel connection also connects external communication electrical input B.
10. the energy-saving switch circuit of infrared induction acoustic control as claimed in claim 9, wherein said electric-controlled switch circuit is characterized in that: the described second relay relay R ELAY2 is a polarized relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205967140U CN201846328U (en) | 2010-11-04 | 2010-11-04 | Infrared induction voice controlled energy-saving switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205967140U CN201846328U (en) | 2010-11-04 | 2010-11-04 | Infrared induction voice controlled energy-saving switching circuit |
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| CN201846328U true CN201846328U (en) | 2011-05-25 |
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| CN2010205967140U Expired - Fee Related CN201846328U (en) | 2010-11-04 | 2010-11-04 | Infrared induction voice controlled energy-saving switching circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956998A (en) * | 2014-04-25 | 2014-07-30 | 国家电网公司 | Energy-saving lightning protection device of agricultural irrigation line |
| CN107728507A (en) * | 2017-08-31 | 2018-02-23 | 重庆市爱伦吉科技有限公司 | Controller and control system between Intelligent sanitary |
| CN108184288A (en) * | 2017-12-28 | 2018-06-19 | 宁波丽安电子有限公司 | The constant current LED power supplies circuit and control method of a kind of self-starting |
| CN108574481A (en) * | 2017-03-13 | 2018-09-25 | 泰科电子(上海)有限公司 | Electronic induction switching circuit, electronic induction switching system and power supply circuit |
| CN115097925A (en) * | 2022-06-20 | 2022-09-23 | 清华大学 | Zero-power-consumption sound self-awakening system and awakening method |
-
2010
- 2010-11-04 CN CN2010205967140U patent/CN201846328U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956998A (en) * | 2014-04-25 | 2014-07-30 | 国家电网公司 | Energy-saving lightning protection device of agricultural irrigation line |
| CN108574481A (en) * | 2017-03-13 | 2018-09-25 | 泰科电子(上海)有限公司 | Electronic induction switching circuit, electronic induction switching system and power supply circuit |
| CN108574481B (en) * | 2017-03-13 | 2024-03-01 | 泰科电子(上海)有限公司 | Electronic induction switch circuit, electronic induction switch system and power supply circuit |
| CN107728507A (en) * | 2017-08-31 | 2018-02-23 | 重庆市爱伦吉科技有限公司 | Controller and control system between Intelligent sanitary |
| CN108184288A (en) * | 2017-12-28 | 2018-06-19 | 宁波丽安电子有限公司 | The constant current LED power supplies circuit and control method of a kind of self-starting |
| CN115097925A (en) * | 2022-06-20 | 2022-09-23 | 清华大学 | Zero-power-consumption sound self-awakening system and awakening method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20141104 |
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| EXPY | Termination of patent right or utility model |