CN2765395Y - Auto induction electronic switch - Google Patents
Auto induction electronic switch Download PDFInfo
- Publication number
- CN2765395Y CN2765395Y CN 200520001785 CN200520001785U CN2765395Y CN 2765395 Y CN2765395 Y CN 2765395Y CN 200520001785 CN200520001785 CN 200520001785 CN 200520001785 U CN200520001785 U CN 200520001785U CN 2765395 Y CN2765395 Y CN 2765395Y
- Authority
- CN
- China
- Prior art keywords
- pin
- terminal
- resistance
- electric capacity
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Electronic Switches (AREA)
Abstract
An auto induction electronic switch is used for illumination and many other multiple purposes, comprising a controlling circuit portion, a power circuit portion and a switching circuit portion. A photoelectric coupler is adopted as the isolated component of the controlling circuit portion and the switching circuit portion, and a full-wave rectification is adopted by the power circuit portion. The utility model can markedly reduce the quiescent current of the switch, and can enhance the interference free performance of the switch.
Description
(1) technical field
The utility model relates to a kind of automatic induction type electronic switch, particularly a kind of illuminating automatic induction type electronic switch.
(2) background technology
For saving electric consumption on lighting, comparatively desirable scheme is to adopt automatic inductive switch, for example auto infrared induction or acoustic control induction electronic switch automatically.When the people walks close to required illumination regional, concerning audio-switch, the people when walking about because of the sound that sent by the sound transducer perception trigger switch of electronic switch, through after a while, perhaps pass through certain hour again after the intensity of sound is lower than certain threshold value, switch may cut out automatically.For the infrared induction electronic switch, when human body or animal body enter the infrared induction district of switch and trigger switch, when human body or animal body break away from the infrared induction district after a period of time, switch cuts out automatically.
For example, its circuit structure of infrared human body induction Automatic Electronic Switch of two-wire system has two kinds on the current market: a kind of one-way SCR that is to use is made switch, and the rectifier bridge that need induce one in opening the loop is as guiding, and the quality instability, and impact resistance is poor; Another kind is to use bidirectional triode thyristor as switching circuit, though there have been some new problems in a kind of weakness of circuit before this type of circuit has overcome:
1) quiescent current is bigger: because the needs that its control section zero crossing detects make its power circuit part only can adopt halfwave rectifier, so quiescent current can be bigger.In general its minimum working load is 60W, if less than 60W (as 25W or 40W), will appear at such as phenomenons such as red light silk or flickers when off status.
2) interference free performance is poor: because the output of its control circuit part and the control input of switching circuit portion adopt is direct-coupled scheme, so the interference signal in the external world is coupled to the control circuit part easily, causes " automatic bright lamp " or phenomenon such as out of control; In addition, can not satisfy the requirement of relevant electric product Electro Magnetic Compatibility aspect.
(3) utility model content
Therefore, the purpose of this utility model be to provide a kind of can be than the automatic induction electronic switch of working under the underload.
At the problems referred to above, the utility model is innovated.At first, cancel the direct coupling system of existing control circuit output and switching circuit input, the utility model is introduced a photoelectrical coupler (for example following photoelectrical coupler OT1) of isolating fully.Obviously, anti-interference problem has just solved, and the control circuit part need not be considered problems such as zero crossing.Secondly, because circuit need not be considered the zero crossing problem, so its power circuit part can adopt full-wave rectification, the quiescent current of the utility model circuit can reduce half like this.
Put it briefly, the invention discloses a kind of automatic induction electronic switch, can be used for multiple uses such as illumination, comprise a control circuit part, a power circuit part and a switching circuit portion, wherein adopt the isolated component of a photoelectrical coupler as control circuit part and switching circuit portion, power circuit partly adopts full-wave rectification, can significantly reduce the quiescent current of switch, has improved the interference free performance of switch.
Specifically,, the utility model discloses a kind of automatic induction electronic switch, comprise a control circuit part, a power circuit part and a switching circuit portion, it is characterized in that according to an aspect of the present utility model:
(1) control circuit part, comprise that is used for a switch control, the thermoelectric Passive Infrared Sensor of 16 pin (pyroelectricpassive infrared sensor, PIR) integrated circuit U1 and peripheral circuit thereof, wherein transducer Q3 receives the infrared signal that object sends, be input to the 15th pin (PIN 15) of integrated circuit U1 then, this signal warp is with the 15th of U1,16,1,2,3 pin and peripheral transducer Q3 thereof, resistance R 6, capacitor C 2, resistance R 2, capacitor C 12, resistance R 1, capacitor C 6, capacitor C 13, resistance R 7, resistance R 4, capacitor C 5 is formed two-stage calculations and is amplified, so with inhibition signal the 11st pin (PIN 11) that comprises integrated circuit U1, timing signal the 13rd pin (PIN 13), pulse-triggered preference pattern signal the 10th pin (PIN 10), regularly select input the 12nd pin (PIN 12), each signal end of oscillator signal output the 4th pin (PIN 4) is output the 7th pin (PIN 7) of the output signal of control integrated circuit U1 together; The 14th pin of integrated circuit U1 provides the galvanic current source for described transducer Q3; Resistance R 28, capacitor C 20 provide a system frequency for the 4th pin of integrated circuit U1; The 6th pin of integrated circuit U1 (PIN 6) is the negative pole of DC power supply, and the 8th pin (PIN 8) is the positive pole of DC power supply; The 5th pin of integrated circuit U1 (PIN 5) is the zero crossing test point; The 9th pin of integrated circuit U1 (PIN 9) and the positive and negative each other level output end of the 7th pin (PIN7);
(2) power circuit part, be used to control circuit that a stable all-wave (prior art is a half-wave) DC power supply is provided, the resistance-capacitance depressurization device C9 that the rectifier bridge, that comprises a band voltage stabilizing element D1, D2, DZ1, DZ2 links to each other with the positive pole of the negative pole of voltage stabilizing element D1 and DZ1 and R5, a dc filter capacitor C3 and a current-limiting resistance R9 who is used for step-down who links to each other with the positive pole of the positive pole of voltage stabilizing element D1 and D2; Another utmost point of described dc filter capacitor C3 links to each other with the 6th pin of said integrated circuit U1, and another utmost point of described current-limiting resistance R9 extremely links to each other with the power supply input of following photoelectrical coupler OT1; One of the utmost point of utmost point of voltage stabilizing element DZ2 and the utmost point of voltage stabilizing element D2, following 1 one utmost points of capacitor C, controllable silicon Q4 and inductance L 1 extremely links to each other.
(3) switching circuit portion comprises a photoelectrical coupler OT1, is used to realize that the control circuit part is connected with the photoelectricity isolation coupling of switching circuit portion, and then reaches the little purpose of phase mutual interference; The receiving unit of described photoelectrical coupler OT1 is formed the circuits for triggering that comprise controllable silicon Q4 with the control electrode of described resistance R 3, capacitor C 4, controllable silicon Q4.
Used controllable silicon Q4 has 4 utmost points in the switching circuit, is respectively the power supply input utmost point, power supply output stage, the signal input utmost point and signal output stage.
Above-mentioned setting according to the utility model device, when the receiving unit of photoelectrical coupler OT1 received the light signal of its radiating portion, the receiving unit impedance of photoelectrical coupler OT1 was minimum, goes to zero, controllable silicon Q4 conducting this moment, load end LOAD receives the signal of a live wire end (LIVE); When the receiving unit of photoelectrical coupler OT1 did not receive the light signal of its radiating portion, the receiving unit impedance of OT1 was very big, was tending towards open circuit, and this moment, controllable silicon Q4 ended, and load end LOAD can not receive the signal of live wire end (LIVE); Photoelectrical coupler OT1 receives the control signal of described control circuit part and described control signal is differentiated, if this signal reaches certain threshold value, then starts at least one load, the action of being correlated with.
The main element of control circuit part of the present utility model is thermoelectric Passive Infrared Sensor (PIR) integrated circuit of one 16 pin, for example a LS6501 type integrated circuit commercially available, standard.
A key element of automatic induction electronic switch described in the utility model is photoelectrical coupler OT1.The utility model is described as it element of switching circuit parts herein.From another angle, also can be its interface member as control circuit parts and switching circuit parts.When switch is in when dynamic, the 7th pin of integrated circuit U1 is a low level, the light-emitting diode conducting of interface member photoelectrical coupler OT1 between control circuit and the switching circuit at this moment, emit beam, and then the bidirectional diode of photoelectrical coupler OT1 receives the light conducting, and then making following controllable silicon Q4 conducting in the switching circuit portion, its load end LOAD receives the signal of live wire end LIVE, reaches the purpose of switch conduction.When switch is in static state, the 7th pin of integrated circuit U1 is a high level, the light-emitting diode of the interface member photoelectrical coupler OT1 of control circuit and switching circuit ends at this moment, can not emit beam, and then the bidirectional diode of photoelectrical coupler OT1 does not receive light and is cut off, and then making controllable silicon Q4 end, its load end LOAD does not receive the signal of live wire end LIVE, reaches the purpose that switch turn-offs.
In the utility model, photoelectrical coupler OT1 and controllable silicon Q4 are key elements of switching circuit portion.Round these two parts, those skilled in the art can visualize the multiple circuit structure of isolating described control circuit part and switching circuit portion, concrete switching circuit portion that has.
Therefore,, the utility model discloses a kind of example of automatic induction electronic switch, it is characterized in that according to a further aspect of the present utility model:
The control circuit part uses a photoelectrical coupler OT1 to carry out isolated coupling with switching circuit portion, wherein No. 7 pin of the power output end of photoelectrical coupler and described integrated circuit U1 link, and its power input is connected with resistance R 9 one of them terminal; The another one terminal of resistance R 9 is connected with the positive source Vcc end of power circuit part; In two other terminal of photoelectrical coupler OT1 (two pickup electrodes), its signal input utmost point and the control utmost point of controllable silicon Q4 and a terminal of a capacitor C 4 interconnect, and another terminal (signal output stage) is connected with a terminal of a resistance R 3; The terminal and the live wire input LIVE of a capacitor C 9 of a terminal of another terminal of resistance R 3 and the anode of controllable silicon Q4, a capacitor C 1, power circuit part are connected; Another switch terminal (negative electrode) of another terminal of capacitor C 4 and controllable silicon Q4, a terminal of inductance L 1, the negative terminal of a voltage-stabiliser tube DZ2 on the power circuit part rectifier bridge and the positive terminal of diode D2 are connected; Another terminal of inductance L 1 is connected with another terminal of capacitor C 1 and load end LOAD; Another terminal of a voltage-stabiliser tube DZ1 on another terminal of resistance R 5 and the rectifier bridge is connected with another terminal of voltage stabilizing element (diode) D1; Another terminal of diode D1 is connected with another end of voltage stabilizing element (diode) D2 and the positive terminal and the positive source Vcc of capacitor C 3.
According to a further aspect of the present utility model, the utility model discloses a kind of automatic induction electronic switch, on the basis of the switch aspect above-mentioned two, be used for illumination, it is characterized in that after switching circuit portion receives the signal of described transducer and this signal differentiated, controlling the work of at least one electric lighting.
The related switch of the utility model can be the two-wire system switch, also can be the multiple-way system switch.
The utility model not only can be used for infrared induction type switch, also can be used for the switch of other type.In fact, be applied to the switch of which kind of type, just depend on and use which kind of transducer.
" object " alleged in the utility model mainly refers to human body and animal body, but comprised that in fact also all can be by self sending the object that infrared radiation triggers relevant infrared sensor.
The utility model is the characteristics that example has illustrated the utility model scheme with the illumination in the above, is pointed out that but require emphasis the utility model is not only applicable to purposes such as family or industrial lighting, also can be used for other purposes.These purposes for example can include, but is not limited to supervision and the control to protected animal activity scope and rule.For example when protected animal via is crossed a specific region; automatic switch starts; be not to send the order of an illumination and start lighting, but send relevant signal to a memory cell or (central authorities) control unit, supply statistical analysis afterwards or control used in real time.
(4) description of drawings
Fig. 1 shows an infrared induction automatic switch of the present utility model.
(5) embodiment
Provide the example of a switching circuit of the present utility model below.
Example of a given infrared induction contactor of the utility model has been shown among Fig. 1.Wherein, the control circuit part uses a photoelectrical coupler OT1 to carry out isolated coupling with switching circuit portion, wherein light-emitting diode negative terminal and control circuit part lead-out terminal link, and its light-emitting diode positive terminal is connected with a resistance R 9 one of them terminal.The another one terminal of resistance R 9 is connected with the positive source Vcc end of power circuit part.In two other terminal of photoelectrical coupler OT1, the control terminal of terminal and controllable silicon Q4 and a terminal of a capacitor C 4 interconnect, and another terminal is connected with a terminal of a resistance R 3.A terminal of a capacitor C 9 of a terminal of another terminal of resistance R 3 and the switch terminal of controllable silicon Q4, a capacitor C 1, power circuit part and the terminal of live wire input LIVE are connected.The negative terminal of another terminal of capacitor C 4 and a terminal of another switch terminal of controllable silicon Q4, inductance L 1, a voltage-stabiliser tube DZ2 on the power circuit part rectifier bridge and the positive terminal of diode D2 are connected.Another terminal of inductance L 1 is connected with the terminal of another terminal of capacitor C 1 and LOAD.Another terminal of a voltage-stabiliser tube DZ1 on another terminal of R5 and the rectifier bridge is connected with another terminal of diode D1.Another terminal of diode D1 is connected with positive source Vcc with the positive terminal of another end of diode D2 and capacitor C 3.The main element of control circuit part of the present utility model is thermoelectric Passive Infrared Sensor (PIR) integrated circuit of one 16 pin, for example commercially available LS6501 type integrated circuit.16 pin of this integrated circuit U1 are respectively:
The 1st pin (AMP1/OUT): the output of first differentiating amplifier (DIFF.AMP.1 OUTPUT),
The 2nd pin (AMP2/IN-): the negative input of second differentiating amplifier (DIFF.AMP.2 INPUT ()),
The 3rd pin (AMP2/OUT): the output of second differentiating amplifier (DIFF.AMP.2 OUTPUT),
The 4th pin (OSC): the input of oscillator (OSCILLATOR INPUT),
The 5th pin (AC): ac power input end (AC INPUT),
The 6th pin (VSS): the negative pole of DC power supply (DC POWER SUPPLY (-)),
The 7th pin (TR/RL): triac/relay output end (TRIAC/RELAY OUTPUT)
The 8th pin (VDD): dc power anode (DC POWER SUPPLY (+)),
The 9th pin (LED/OUT): light-emitting diode output (LED OUTPUT),
The 10th pin (PULSE M/SEL): pulse mode is selected input (PULSE MODE SELECT INPUT),
The 11st pin (INH): forbid input (INHIBIT INPUT),
The 12nd pin (DEAD T/SEL): regularly select input (DEAD TIME SELECT INPUT),
The 13rd pin (TIMER): time control input end (TIMER COTROL INPUT),
The 14th pin (5VREG/OUT): 5V output end of pressure-stabilizing (5V REGULATOR OUTPUT),
The 15th pin (AMP1/IN+): differentiating amplifier electrode input end (DIFF.AMP.1 INPUT (+)),
The 16th pin AMP1/IN-): differentiating amplifier negative input (DIFF.AMP.1 INPUT (-)).
As shown in Figure 1, the used controllable silicon Q4 of the switching circuit portion of present embodiment has 4 utmost points, and wherein the upper left side is the power supply input utmost point, and the upper right side is the power supply output stage, and the lower left is the signal input utmost point, and the lower right is the signal output stage.
In the present embodiment, Automatic Electronic Switch of the present utility model still can normally stably be worked when lower limit load 25W.Owing to broken through the load lower limit that prior art is approximately 60W, therefore can be widely used for places such as all kinds of illuminations.
Those skilled in the art are not difficult according to above description, provide the various technical schemes that can draw according to the utility model.
Claims (3)
1, a kind of automatic induction electronic switch comprises a control circuit part, a power circuit part and a switching circuit portion, it is characterized in that:
(1) control circuit part, comprise a thermoelectric Passive Infrared Sensor integrated circuit (U1) and a peripheral circuit thereof that is used for 16 pin of switch control, one of them the 3rd transducer (Q3) receives the infrared signal that human body sends, be input to the 15th pin of integrated circuit (U1) then, this signal is through the 15th of same integrated circuit (U1) the, 16,1,2,3 pin and peripheral one the 3rd transducer (Q3) thereof, one the 6th resistance (R6), one second electric capacity (C2), one second resistance (R2), the 12 electric capacity (C12), one first resistance (R1), one the 6th electric capacity (C6), the 13 electric capacity (C13), one the 7th resistance (R7), one the 4th resistance (R4), one the 5th electric capacity (C5) is formed two-stage calculation amplifier, so with inhibition signal the 11st pin that comprises integrated circuit (U1), timing signal the 13rd pin, pulse-triggered preference pattern signal the 10th pin, regularly select input the 12nd pin, each signal end of oscillator signal output the 4th pin is controlled output the 7th pin of the output signal of described integrated circuit (U1) together; The 14th pin of integrated circuit (U1) is that described the 3rd transducer (Q3) provides the galvanic current source; The 28 resistance (R28), the 20 electric capacity (C20) provide a system frequency for the 4th pin of integrated circuit (U1); The 6th pin of integrated circuit (U1) is the negative pole of DC power supply, and the 8th pin is the positive pole of DC power supply; The 5th pin of integrated circuit (U1) is the zero crossing test point; The positive and negative each other level output end of the 9th pin of integrated circuit (U1) and the 7th pin;
(2) power circuit part, be used to control circuit that a stable full-wave direct current power supply is provided, comprise that has one first voltage stabilizing element (D1), one second voltage stabilizing element (D2), the rectifier bridge of one the 3rd voltage stabilizing element (DZ1) and one the 4th voltage stabilizing element (DZ2), a first resistance-capacitance depressurization device (C9 and R5) that links to each other with the positive pole of the negative pole of described first voltage stabilizing element (D1) and the 3rd voltage stabilizing element (DZ1), the 3rd dc filter capacitor (C3) and the 9th current-limiting resistance (R9) that is used for step-down that links to each other with the positive pole of the positive pole of described first voltage stabilizing element (D1) and second voltage stabilizing element (D2); Another utmost point of described the 3rd dc filter capacitor (C3) links to each other with the 6th pin of said integrated circuit (U1), and another utmost point of described the 9th current-limiting resistance (R9) extremely links to each other with the power supply input of following photoelectrical coupler (OT1); One of utmost point of utmost point of described the 4th voltage stabilizing element (DZ2) and a utmost point of second voltage stabilizing element (D2), following utmost point of first electric capacity (C1), the 4th controllable silicon (Q4) and first inductance (L1) extremely links to each other;
(3) switching circuit portion comprises a photoelectrical coupler (OT1), is used to realize that the control circuit part is connected with the photoelectricity isolation coupling of switching circuit portion, and then reaches the purpose that reduces the phase mutual interference; The control utmost point of same the 3rd resistance of the receiving unit of described photoelectrical coupler (OT1) (R3), the 4th electric capacity (C4) and one the 4th controllable silicon (Q4) is formed circuits for triggering.
2, automatic induction electronic switch as claimed in claim 1, the control circuit part uses a photoelectrical coupler (OT1) to carry out isolated coupling with switching circuit portion, it is characterized in that:
Wherein No. 7 pin of the power output end of photoelectrical coupler (OT1) and described integrated circuit (U1) link, and its power input is connected with one of them terminal of the 9th resistance (R9); The another one terminal of the 9th resistance (R9) is connected with positive source (Vcc) end of power circuit part;
In two other terminal of photoelectrical coupler (OT1), its signal input utmost point and the control utmost point of the 4th controllable silicon (Q4) and a terminal of the 4th electric capacity (C4) interconnect, and its signal output stage is connected with a terminal of the 3rd resistance (R3); The terminal and a live wire input (LIVE) of the 9th electric capacity (C9) of a terminal of another terminal of the 3rd resistance (R3) and the anode of the 4th controllable silicon (Q4), first electric capacity (C1), power circuit part are connected; The negative terminal of another terminal of the 4th electric capacity (C4) and a terminal of the negative electrode of the 4th controllable silicon (Q4), first inductance (L1), the 4th voltage-stabiliser tube (DZ2) on the power circuit part rectifier bridge and the positive terminal of second voltage-stabiliser tube (D2) are connected; Another terminal of first inductance (L1) is connected with another terminal of first electric capacity (C1) and a terminal of a load end (LOAD); Another terminal of the 3rd voltage-stabiliser tube (DZ1) on another terminal of one the 5th resistance (R5) and the rectifier bridge is connected with another terminal of first voltage-stabiliser tube (D1); Another terminal of first voltage-stabiliser tube (D1) is connected with another terminal of second voltage-stabiliser tube (D2) and the same positive source of positive terminal (Vcc) of the 3rd electric capacity (C3).
3, automatic induction electronic switch as claimed in claim 2 is used for illumination, it is characterized in that controlling the keying of at least one electric lighting after switching circuit portion receives the signal of described transducer and this signal differentiated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001785 CN2765395Y (en) | 2005-01-31 | 2005-01-31 | Auto induction electronic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001785 CN2765395Y (en) | 2005-01-31 | 2005-01-31 | Auto induction electronic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2765395Y true CN2765395Y (en) | 2006-03-15 |
Family
ID=36168309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520001785 Expired - Fee Related CN2765395Y (en) | 2005-01-31 | 2005-01-31 | Auto induction electronic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2765395Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100552577C (en) * | 2007-10-15 | 2009-10-21 | 深圳市和而泰智能控制股份有限公司 | Energy-saving control circuit |
| CN101202542B (en) * | 2006-12-15 | 2010-08-25 | 鸿富锦精密工业（深圳）有限公司 | Infrared energy saving circuit |
| WO2015010637A1 (en) * | 2013-07-26 | 2015-01-29 | 施耐德电气（澳大利亚）有限公司 | Electronic switch and control method for electronic switch |
| CN111404530A (en) * | 2020-05-08 | 2020-07-10 | 深圳市中科创想科技有限责任公司 | A sense accuse circuit for intelligent house |
-
2005
- 2005-01-31 CN CN 200520001785 patent/CN2765395Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202542B (en) * | 2006-12-15 | 2010-08-25 | 鸿富锦精密工业（深圳）有限公司 | Infrared energy saving circuit |
| CN100552577C (en) * | 2007-10-15 | 2009-10-21 | 深圳市和而泰智能控制股份有限公司 | Energy-saving control circuit |
| WO2015010637A1 (en) * | 2013-07-26 | 2015-01-29 | 施耐德电气（澳大利亚）有限公司 | Electronic switch and control method for electronic switch |
| CN111404530A (en) * | 2020-05-08 | 2020-07-10 | 深圳市中科创想科技有限责任公司 | A sense accuse circuit for intelligent house |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201001216Y (en) | High power LED drive circuit | |
| US20110291571A1 (en) | Intelligent energy-saving lamp | |
| CN2765395Y (en) | Auto induction electronic switch | |
| CN109769321B (en) | LED lamp circuit with delayed light-off function | |
| CN106163040A (en) | Voice light fixture ON-OFF control circuit | |
| CN202085359U (en) | Controlling means for acousto-optic touch tri-control non-attended light | |
| CN104768297B (en) | Sensing lamp | |
| CN111405717A (en) | L ED lamp circuit with human body induction function | |
| CN1967992B (en) | A buffer switching power supply | |
| CN201839486U (en) | LED (light-emitting diode) body induction lamp circuit | |
| CN213638284U (en) | Double-control intelligent dimming switch | |
| EP1937038A2 (en) | Power regulator | |
| CN205196008U (en) | Novel intelligence light source actuating system | |
| CN210579392U (en) | Mechanical switch light and speed adjusting control system | |
| CN1705421A (en) | Digital remote controlled dimmer switch capable of controlling energy-saving lamp | |
| CN2298618Y (en) | Universal two-wire splendid type multifunction infrared remote-control multichannel wall switch | |
| CN202603003U (en) | Multifunctional sound control switch | |
| CN201242115Y (en) | Intelligent switching controlled power utilization apparatus | |
| CN204795721U (en) | Emergent bright lamp device of LED light source | |
| CN214851905U (en) | LED lighting device | |
| CN2267525Y (en) | Touch delay action switch | |
| CN209930556U (en) | Light-operated LED drive circuit | |
| CN201345766Y (en) | Anti-jamming sound and light control switch | |
| CN214101853U (en) | Constant current LED lamp circuit with function of turning off light in time delay | |
| CN214708103U (en) | Lamp control circuit based on Bluetooth and light control |
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: 20060315 Termination date: 20140131 |