CN210958911U

CN210958911U - Single-fire double-control intelligent dimming switch

Info

Publication number: CN210958911U
Application number: CN201922045774.7U
Authority: CN
Inventors: 朱新俊
Original assignee: Hangzhou Tuya Information Technology Co Ltd
Current assignee: Hangzhou Tuya Information Technology Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-07-07
Anticipated expiration: 2029-11-25

Abstract

The utility model relates to a two accuse intelligent light-adjusting switches of single fire for concatenate on the connecting line of light source load and live wire, include: two trigger circuits composed of the same circuit structure; the power taking circuit is used for taking alternating current on the connecting circuit, a rectifier bridge is arranged on the power taking circuit corresponding to each trigger circuit, and the trigger circuits are connected with the rectifier bridges in a one-to-one corresponding mode; the zero-point detection circuit outputs an alternating-current zero-crossing signal when alternating current crosses zero, diodes are arranged on the zero-point detection circuit corresponding to each trigger circuit, and the trigger circuits are connected with the diodes in a one-to-one correspondence mode; and the bleeder circuit is connected with the power taking circuit and is provided with an MOS tube Q5, and the conduction from the HVDC to the GND between two adjacent zero points of the alternating current is realized through the MOS tube Q5 so as to compensate the zero point drift of the light source load under the alternating current. The technical scheme of the utility model in, realize that a single fire two accuse intelligent light-adjusting switch collocation a mechanical two accuse switch just can realize single accuse or two accuse functions, need not tear open and change existing circuit and mechanical switch.

Description

Single-fire double-control intelligent dimming switch

Technical Field

The utility model relates to an intelligence house light control field especially relates to a two accuse intelligent light control switches of single fire.

Background

The smart dimmer switches currently on the market are of several types:

1. zero-fire (zero line and live line which need to be connected with commercial power can work) dimming switch. The disadvantages are as follows: zero lines and live wires are distributed in the wall cassette in advance, most wall switch slots without zero lines need to be pulled again, and the wall switch slots are not easy to modify and replace.

2. Single fire single control light modulation switch. The disadvantages are as follows: the double-control function can not be realized, the mechanical double-control switch at the other end needs to be taken down when the traditional mechanical double-control switch is replaced, the internal circuit needs to be adjusted, and the installation is relatively complex.

3. Single fire double control/multiple control light regulating switch. The disadvantages are as follows: the double-control switch can not be compatible with the traditional mechanical double-control switch, one or more switches which are required to be connected in series during use must also be single-fire electronic switches, code pairing and other operations are required, the installation is complex, debugging is not easy, and the use cost is high.

In summary, in the field of the existing intelligent dimming switch which is powered by a single live wire and supports double control or multiple control, the realization idea is to synchronize the on-off state in a wired or wireless manner when two or more electronic dimming switches realize double control or multiple control, and realize the double control or multiple control function by "communicating with each other with or without". High use cost, complex installation and incompatibility with the existing mechanical switch.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

Therefore, an object of the utility model is to provide a two accuse intelligent light-adjusting switch of single fire, it can realize that a two accuse intelligent light-adjusting switch of single fire collocation a machinery two accuse switches just can realize single accuse or two accuse functions, need not tear open and change existing circuit and mechanical switch, need not distinguish intelligent light-adjusting's mounted position.

In order to achieve the above object, the utility model discloses the technical scheme of the first aspect provides a two accuse intelligent light-adjusting switches of single fire for concatenate on the connecting line of light source load and live wire, include:

two trigger circuits composed of the same circuit structure;

the power taking circuit is used for taking alternating current on the connecting circuit, a rectifier bridge is arranged on the power taking circuit corresponding to each trigger circuit, and the trigger circuits are connected with the rectifier bridges in a one-to-one corresponding mode;

the zero-point detection circuit outputs an alternating-current zero-crossing signal when alternating current crosses zero, diodes are arranged on the zero-point detection circuit corresponding to each trigger circuit, and the trigger circuits are connected with the diodes in a one-to-one correspondence mode;

and the bleeder circuit is connected with the power taking circuit and is provided with an MOS tube Q5, and the conduction from the HVDC to the GND between two adjacent zero points of the alternating current is realized through the MOS tube Q5 so as to compensate the zero point drift of the light source load under the alternating current.

In the above technical solution, preferably, each trigger circuit includes a trigger control chip U3, a triac Q2, a resistor VR1, a resistor R17, a resistor R20, a resistor R22, a capacitor C9, and a capacitor C10, which are connected to each other, where pin No. 1 of the trigger control chip U3 is connected to one end of the resistor R20 and one end of the capacitor C10, and pin No. 2 is connected to the other end of the capacitor C10 and grounded; a pin 6 of the trigger control chip U3 is connected with a resistor R17, a pin 4 is respectively connected with a resistor R22 and a bidirectional thyristor Q2, the resistor R17 is connected with the bidirectional thyristor Q2, and the resistor VR1, a capacitor C9 and the bidirectional thyristor Q2 are connected in parallel.

In any of the above technical solutions, preferably, the power-taking circuit includes two rectifier bridges DB1 and DB2, diodes D1-D4, zener diodes ZD1 and ZD2, resistors R8-R12, capacitors C6-C8, capacitors EC1 and EC2, an inductor L1, a transformer T1, and a power chip U1 which are connected,

no. 3 pins of the rectifier bridges DB1 and DB2 are connected together and connected to an alternating current input end Lin, No. 2 pins of the bidirectional controllable silicon on each trigger circuit are connected to No. 2 pins of the bidirectional controllable silicon on each trigger circuit respectively, No. 1 pins are connected together and connected to a diode D1, No. 4 pins are connected together and connected to the ground; the diode D1 is respectively connected to the No. 1 pin of the transformer T1 and the capacitor EC1 through the resistor R8 and the inductor L1, and the zener diode ZD1 is connected to the two ends of the resistor R8 in parallel;

a No. 4 pin of the power chip U1 is connected to a No. 4 pin of the transformer T1; pin No. 5 of the power chip U1 is connected to the ground through a resistor R12, pin No. 4 is connected to the ground through a capacitor C8, and pin No. 3 is connected to a diode D2 through a diode ZD2 and a diode D4; pin 8 and pin 5 of the transformer T1 are connected to the diode D2 and the diode D3 respectively; diode D2 and diode D3 are connected with capacitor C6 and capacitor EC2, respectively, diode D2 is connected to ground through resistor R9, and diode D3 is connected to ground through resistor R10 and resistor R11.

In any of the above technical solutions, preferably, the zero point detection circuit includes phase-connected diodes D5-D7, a resistor R1, resistors R13-R15, a resistor R18, a resistor R19, a resistor R21, a triode Q3, an optocoupler U2, a capacitor C11 and a capacitor C12, the triacs on the two trigger circuits are respectively connected to the resistor R13 and the resistor R14 through the diode D5 and the diode D6, and the resistor R13 is connected in series with the resistor R15, the resistor R18, the diode D7 and the capacitor C12 to the ac input common terminal Lin; the resistor R14 is connected with the resistor R19 and the resistor R21 in series and connected to the input common end Lin, and the capacitor C11 is connected with the resistor R21 in parallel and then connected with the triode Q3; transistor Q3 drives optocoupler U2.

In any of the above technical solutions, preferably, the bleeder circuit includes a MOS transistor Q5, a resistor R24, a resistor R25, a resistor R27, resistors R29-R32, a capacitor C13, and a compound triode Q6, which are connected, where the MOS transistor Q5 can conduct from HVDC to GND between two adjacent zero points of alternating current, so as to compensate zero point drift of the light source load under alternating current; the compound triode Q6 is respectively connected with a resistor R25, a resistor R31, a resistor R32 and a capacitor C13, a resistor R24 is connected with the capacitor C13 in parallel, and a resistor R27, a resistor R29, a resistor 30 and an MOS transistor Q5 are connected in parallel and connected with the compound triode Q6.

In any of the above technical solutions, preferably, the mobile phone further includes a plurality of key circuits, each key circuit includes a key S, a resistor R, and a capacitor C, the capacitor C and the key S are connected in parallel and then connected to ground, one end of the resistor R is connected to the key S, and the other end of the resistor R is connected to 3.3V.

In any of the above technical solutions, preferably, the display device further includes an indication circuit, which includes a resistor R2, a resistor R6, a resistor R7, a resistor R33, a triode Q1, an indication lamp LED1 and an indication lamp LED2, the indication lamp LED1 and the indication lamp LED2 are respectively connected in series with the resistor R2 and the resistor R33 and then connected in parallel to the triode Q1, a pin 1 of the triode Q2 is respectively connected to the resistor R6 and the resistor R7, and the resistor R7 is grounded.

In any of the above technical solutions, preferably, the wireless connection circuit further includes a Zigbee chip M1, a resistor R3, a resistor R4, and capacitors C2-C4, where pin 6 of the Zigbee chip M1 is connected to the resistor R4 and the capacitor C4, respectively, and the capacitors C2, C3, and R3 are connected in parallel to

pins

30, 29, and 28 of the Zigbee chip M1.

In any of the above technical solutions, preferably, the method further includes: the burning terminal is a pin header J1; PCB connector P1, PCB connector P1 are connected with getting electric circuit, zero point detection circuit, trigger circuit and bleeder circuit respectively.

The utility model provides a two accuse intelligent light-adjusting switches of single fire compares with prior art, has following advantage:

1. the single-fire double-control intelligent dimming switch can realize single control or double control (the double control can be realized by matching with the original mechanical double control), the existing circuit and the mechanical switch do not need to be disassembled and changed, and the installation position of intelligent dimming does not need to be distinguished.

2. The double-control and dimming functions of the two single-fire double-control intelligent dimming switches are realized without disassembling and modifying the existing circuit.

3. The LED/CFL dimming circuit is special for a stable zero point and an anti-flash circuit, soft dimming is achieved, flicker is avoided, load compatibility is good, an incandescent lamp can be adjusted, and the LED/CFL circuit supports phase-cut dimming and the like.

4. The wireless control of a mobile phone or other display terminals is realized through the wireless module, and the remote control can be realized through the cloud in cooperation with the gateway.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a circuit diagram of a first trigger module according to an embodiment of the present invention;

fig. 2 shows a circuit diagram of a second trigger module according to an embodiment of the present invention;

fig. 3 is a circuit diagram of a power-taking circuit according to an embodiment of the present invention;

fig. 4 is a circuit diagram of a zero point detection circuit according to an embodiment of the present invention;

fig. 5 shows a circuit diagram of a bleeder circuit in accordance with an embodiment of the present invention;

fig. 6 is a circuit diagram of a first key module according to an embodiment of the present invention;

fig. 7 is a circuit diagram of a second key module according to an embodiment of the present invention;

fig. 8 shows a circuit diagram of an indication circuit according to an embodiment of the present invention;

fig. 9 is a circuit diagram of a wireless connection circuit according to an embodiment of the present invention;

fig. 10 shows a circuit diagram of a pin header according to an embodiment of the invention;

fig. 11 shows a circuit diagram of a PCB connector P1 according to an embodiment of the present invention;

fig. 12 to 16 are schematic diagrams illustrating connection of multiple access modes of a single-fire double-control intelligent dimming switch according to an embodiment of the present invention;

fig. 17 is a schematic control diagram of a single-fire dual-control smart dimmer switch according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1 to 17, a single-fire double-control intelligent dimming switch 100 according to some embodiments of the present invention is described, in which two silicon controlled rectifiers are used as a contactless switch, and each silicon controlled rectifier can independently cut phase and chop to realize dimming. Every time the on-off key on the dimming switch or the virtual switch key at the APP end of the mobile phone is pressed in work, the path of trigger signals in work can be switched to another path, the original path of trigger signals is closed, and the switched trigger signals keep the original trigger phase, so that the double-control function is realized and the previous dimming brightness is kept. Meanwhile, whether the loop is in an ON state or an OFF state can be judged by comparing the zero point signal with the trigger signal, so that the current working state can be synchronously displayed at the APP end of the mobile phone.

As shown in fig. 1 to fig. 11, the intelligent dimming switch 100 with single fire and double control according to an embodiment of the present invention is configured to be connected in series to a connection line between a light source load 200 and a live wire, and includes:

two trigger circuits composed of the same circuit structure;

in this embodiment, as shown in fig. 1, the trigger circuit is a first trigger module and a second trigger module, the first trigger module includes a trigger control chip U3, a triac Q2, a resistor VR1, a resistor R17, a resistor R20, a resistor R22, a capacitor C9, and a capacitor C10, which are connected to each other, a pin No. 1 of the trigger control chip U3 is connected to one end of the resistor R20 and one end of the capacitor C10, and a pin No. 2 is connected to the other end of the capacitor C10 and grounded; a pin No. 6 of the trigger control chip U3 is connected with a resistor R17, a pin No. 4 of the trigger control chip U3 is respectively connected with a resistor R22 and a bidirectional thyristor Q2, the resistor R17 is connected with the bidirectional thyristor Q2, and the resistor VR1, a capacitor C9 and the bidirectional thyristor Q2 are connected in parallel;

as shown in fig. 2, the second trigger module includes a trigger control chip U4, a triac Q4, a resistor VR2, a resistor R23, a resistor R26, a resistor R28, a capacitor C14, and a capacitor C15, which are connected to each other, where pin No. 1 of the trigger control chip U4 is connected to one end of the resistor R26 and one end of the capacitor C15, and pin No. 2 is connected to the other end of the capacitor C15 and grounded; a pin 6 of the trigger control chip U4 is connected with a resistor R23, a pin 4 is respectively connected with a resistor R28 and a bidirectional thyristor Q4, the resistor R23 is connected with the bidirectional thyristor Q4, and the resistor VR2, a capacitor C14 and the bidirectional thyristor Q4 are connected in parallel.

In this embodiment, two triacs Q2 and Q4 are used for power adjustment and on/off switching. Two trigger signals CTR1 and CTR2 are used for respectively controlling the on-off and phase-cut of the bidirectional controlled silicon Q2 and the bidirectional controlled silicon Q4 to adjust the brightness, namely, the two power paths can be switched between the bidirectional controlled silicon Q2 and the bidirectional controlled silicon Q4, and meanwhile, each power path can adjust the power output in a phase-cut chopping mode. The output ports of the two power paths are L1 and L2, and the original double-control line is connected to L1 and L2 to realize the double-control function. When the single-control circuit is used, the power supply wire of the load lamp is connected to L1 or L2.

Specifically, a T1 end of a bidirectional thyristor Q2 is connected with a T1 end of a bidirectional thyristor Q4, and a fuse is connected in series through an inductor L1 and is connected to an input end of an alternating current live wire; a T2 terminal of the triac Q2 is connected to the output terminal L1, and a T2 terminal of the triac Q4 is connected to the output terminal L2.

in this embodiment, pins 3 of the rectifier bridge DB1 and the rectifier bridge DB2 are connected together to the ac input terminal Lin, and pins 2 of the rectifier bridge DB1 and the rectifier bridge DB2 are connected to pin 2 of the triac Q2 and pin 2 of the triac Q4, respectively.

in the embodiment, the zero point monitoring circuit is used for sampling the zero point of the alternating current, a zero point synchronous signal ZRD of each alternating current is sent to the MCU for processing, and the MCU outputs a trigger signal to trigger the conduction of the silicon controlled rectifier at a specific moment according to the zero point position of the alternating current, namely a certain phase of the sine alternating current, so that the phase-cut control of the alternating current is realized. In addition, another characteristic of the zero point signal output by the zero point circuit is determined by whether a certain path of controllable silicon is on or off, that is, at any working moment, the zero point signal can demodulate the zero point of the alternating current and a corresponding on-off state signal.

The bleeder circuit is connected with the power taking circuit and is provided with an MOS (metal oxide semiconductor) tube Q5, and the conduction from the HVDC to the GND between two adjacent zero points of the alternating current is realized through the MOS tube Q5 so as to compensate the zero point drift of the light source load under the alternating current;

in this embodiment, when the low-power LED or CFL operates, the conduction current of the thyristor near the zero point is small, sometimes lower than the holding current of the thyristor to cause the controllable early turn-off, which may cause the load lamp to flicker. This also results in instability of the zero-sampling circuit. The circuit has the function of providing an alternating current path of a power circuit at the moment before each alternating current zero point arrives, optimizing the voltage waveform of phase-cut output, further stabilizing the input signal of zero point sampling and preventing the false triggering of the controlled silicon.

In the above embodiment, preferably, as shown in fig. 3, the power-taking circuit includes two rectifier bridges DB1 and DB2, diodes D1-D4, zener diodes ZD1 and ZD2, resistors R8-R12, capacitors C6-C8, capacitors EC1 and EC2, inductor L1, transformer T1, and power chip U1 connected together,

In any of the above embodiments, preferably, as shown in fig. 4, the zero point detection circuit 30 includes phase-connected diodes D5-D7, a resistor R1, resistors R13-R15, a resistor R18, a resistor R19, a resistor R21, a triode Q3, an optocoupler U2, a capacitor C11, and a capacitor C12, wherein the triacs on the two trigger circuits are respectively connected to the resistor R13 and the resistor R14 through the diode D5 and the diode D6, and the resistor R13 is connected in series with the resistor R15, the resistor R18, the diode D7, and the capacitor C12 to the ac input common terminal Lin; the resistor R14 is connected with the resistor R19 and the resistor R21 in series and connected to the input common end Lin, and the capacitor C11 is connected with the resistor R21 in parallel and then connected with the triode Q3; transistor Q3 drives optocoupler U2.

In this embodiment, the utility model discloses a sampling at alternating current zero point is realized to this circuit, gives MCU with the zero point synchronizing signal ZRD of every alternating current and handles, and MCU triggers the silicon controlled rectifier to switch on according to the zero point position of alternating current at specific moment, a certain phase output trigger signal of sinusoidal alternating current promptly, realizes the phase-cut control to the alternating current. In addition, another characteristic of the zero point signal output by the zero point circuit is determined by whether a certain path of controllable silicon is on or off, that is, at any working moment, the zero point signal can demodulate the zero point of the alternating current and a corresponding on-off state signal.

Specifically, T2 of the bidirectional thyristor Q2 and the bidirectional thyristor Q4 are respectively connected to a resistor R13 and a resistor R14 through rectifier diodes D5 and D6, and the resistor R13 is connected in series with the resistor R15, the resistor R18, the diode D7 and a capacitor C12 and is connected to an alternating current input common end Lin; the resistor R14 is connected with the resistor R19 and the resistor R21 in series and is connected to Lin, and the capacitor C11 is connected with the resistor R21 in parallel and then is connected with the triode Q3; the triode Q3 drives the optocoupler U2, and a pin No. 4 of the optocoupler U2 is connected to a resistor R4 and a capacitor C4 in the wireless connection circuit 70; the other ends of the resistor R4 and the capacitor C4 are connected to 3.3V and GND, respectively.

In any of the above embodiments, preferably, as shown in fig. 5, the bleeder circuit includes a MOS transistor Q5, a resistor R24, a resistor R25, a resistor R27, resistors R29-R32, a capacitor C13, and a compound transistor Q6, which are connected, where the MOS transistor Q5 is capable of conducting from HVDC to GND between two adjacent zero points of alternating current to compensate for zero point drift of the light source load under alternating current; the compound triode Q6 is respectively connected with a resistor R25, a resistor R31, a resistor R32 and a capacitor C13, a resistor R24 is connected with the capacitor C13 in parallel, and a resistor R27, a resistor R29, a resistor 30 and an MOS transistor Q5 are connected in parallel and connected with the compound triode Q6.

Specifically, a rectifier bridge and a rectified output voltage VHDC which are bridged between controllable silicon T1 and T2 are connected to a Drain pole of a MOS transistor Q5, and a Source pole of the MOS transistor Q5 is connected to the ground through a resistor R29; the Gate of the MOS transistor Q5 is connected to pin 3 of the composite triode Q6 through a resistor R27, and pin 2 of the composite triode Q6 is connected to an RTZ signal through a resistor R6, and the RTZ signal is given by an MCU or an SOC.

In any of the above embodiments, preferably, the mobile phone further includes a plurality of key circuits, each key circuit includes a key S, a resistor R, and a capacitor C, the capacitor C and the key S are connected in parallel and then connected to ground, one end of the resistor R is connected to the key S, and the other end of the resistor R is connected to 3.3V.

In this embodiment, as shown in fig. 6, the plurality of key circuits are a first key module at least composed of a key S1, a resistor R34 and a capacitor C1, the capacitor C1 and the key S1 are connected in parallel and then connected to ground, one end of the resistor R34 is connected to the key S1, and the other end is connected to 3.3V; as shown in fig. 7, and a second key module at least composed of a key S2, a resistor R5 and a capacitor C5, the capacitor C5 and the key S2 are connected in parallel and then connected to ground, one end of the resistor R5 is connected to the key S2, and the other end is connected to 3.3V. The working state is as follows: s1, pressing the key for a short time, and pressing the key for a long time to adjust the key to be bright steplessly; s2 keys are pressed, short-time pressing is performed, and long-time pressing is performed without dimming; pressing keys S1 and S2 at the same time enters the distribution network mode.

In any of the above embodiments, as shown in fig. 8, preferably, the display device further includes an indication circuit, which includes a resistor R2, a resistor R6, a resistor R7, a resistor R33, a transistor Q1, and an indication lamp LED1 and an indication lamp LED2, the indication lamp LED1 and the indication lamp LED2 are respectively connected in series with the resistor R2 and the resistor R33 and then connected in parallel to the transistor Q1, the pin 1 of the transistor Q2 is respectively connected to the resistor R6 and the resistor R7, and the resistor R7 is grounded.

In this embodiment, LED1, LED2 indicator light, on long on, off fluorescent indicator light; and the LED1 and the LED2 indicate that the lamp is in a flash state when the distribution network is carried out.

In any of the above embodiments, as shown in fig. 9, it is preferable that the wireless connection circuit 70 is further included, the wireless connection circuit 70 includes a Zigbee chip M1, a resistor R3, a resistor R4, and capacitors C2-C4, the pin No. 6 of the Zigbee chip M1 is connected with the resistor R4 and the capacitor C4, respectively, and the capacitor C2, the capacitor C3, and the resistor R3 are connected in parallel to the pins No. 30, 29, and 28 of the Zigbee chip M1.

In this embodiment, the Zigbee chip M1 adopts an SOC scheme, a built-in microprocessor is used for detection and control, and a wireless link is provided for connecting a network and devices, so as to implement local or remote control. Pin No. 1 of the Zigbee chip M1 is grounded, and pin No. 30 is connected with a 3.3V power supply; pin 24 and pin 11 output trigger signals CTR1 and CTR2, respectively; the pin 6 of the Zigbee chip M1 is used to detect the zero-crossing signal ZRD; the No. 5 pin and the No. 7 pin of the Zigbee chip M1 detect local keys, the local keys are pressed for a short time to control the on and off of the equipment S1 and S2, and the keys are pressed for a long time to control the on and off of the equipment S1 and S2; the No. 8 pin of the Zigbee chip M1 is used for outputting an RTZ signal and controlling the working of the anti-flash circuit; pin 10 and pin 20 of the Zigbee chip M1 are used for controlling an indicator light and indicating the operating state of the device.

In this embodiment, the wireless module in the switch can realize switching and dimming control without being limited by space distance, thereby improving the quality of life and meeting the requirements of energy conservation and emission reduction; in addition, by arranging the wireless module in the switch, the invention adopts the light-adjusting switch based on the zigbee and is matched with the zigbee gateway, so that a user can control the switch and adjust light through the mobile phone APP and can remotely control the switch and the light through the cloud, and the user experience is better.

In any of the above embodiments, preferably, as shown in fig. 10 and 11, the method further includes: the burning terminal is a pin header J1; PCB connector P1, PCB connector P1 are connected with getting electric circuit, zero point detection circuit, trigger circuit and bleeder circuit respectively.

The utility model discloses a two accuse intelligent light-adjusting switches of single fire realizes still including following subcircuit part that can replace. The zero point detection circuit can also adopt a plurality of resistors, capacitors and a triode to form a zero point sampling circuit; the electricity taking part can also adopt a half-wave rectifying circuit consisting of one or two rectifying diodes and other switching power supplies or linear power supply schemes; the bleeder circuit can also use a power switch loop formed by a triode, an MOS tube and the like; the wireless connection circuit 70 may also be formed by wireless connection such as wifi, bluetooth, Sub-G, 433MHz, etc. The trigger circuit comprises but not limited to a thyristor, and also comprises a back edge phase-cut alternating current chopper circuit formed by MOS (metal oxide semiconductor) tubes.

1. a single-fire double-control smart dimming switch can realize single control or double control (double control can be realized by matching with an original mechanical double-control switch 300), does not need to change an existing circuit and a mechanical switch, and does not need to distinguish the installation position of smart dimming, as shown in fig. 12 and 13.

2. The double-control and dimming functions are realized by supporting two single-fire double-control intelligent dimming switches without changing the existing circuit, as shown in fig. 14 and 15.

3. The LED/CFL dimming circuit is special for a stable zero point and an anti-flash circuit, soft dimming is achieved, flicker is avoided, load compatibility is good, an incandescent lamp can be adjusted, and the LED/CFL circuit supports phase-cut dimming and the like. The minimum load power is supported to 3W, and is dimmable, and can be turned off without flicker, as shown in fig. 16.

4. Wireless control of a mobile phone or other display terminal 400 is achieved through a wireless module (including but not limited to a Zigbee module), and a gateway can achieve remote control through a cloud 500, as shown in fig. 17.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a two accuse intelligent light-adjusting switch of single fire for concatenate on the connecting wire way of light source load and live wire, its characterized in that includes:

two trigger circuits composed of the same circuit structure;

the power taking circuit is used for taking alternating current on the connecting circuit, a rectifier bridge is arranged on the power taking circuit corresponding to each trigger circuit, and the trigger circuits are connected with the rectifier bridges in a one-to-one correspondence manner;

the zero-point detection circuit outputs an alternating-current zero-crossing signal when alternating current crosses zero, a diode is arranged on the zero-point detection circuit corresponding to each trigger circuit, and the trigger circuits are connected with the diodes in a one-to-one correspondence manner;

and the bleeder circuit is connected with the power taking circuit and is provided with an MOS tube Q5, and the zero drift of the light source load under the alternating current is compensated by conducting HVDC to GND between two adjacent zero points of the alternating current through the MOS tube Q5.

2. The single-fire double-control intelligent dimming switch according to claim 1, wherein each of the trigger circuits comprises a trigger control chip U3, a triac Q2, a resistor VR1, a resistor R17, a resistor R20, a resistor R22, a capacitor C9 and a capacitor C10 which are connected, wherein a pin No. 1 of the trigger control chip U3 is respectively connected with one end of the resistor R20 and one end of the capacitor C10, and a pin No. 2 is connected with the other end of the capacitor C10 and grounded; no. 6 pin of the trigger control chip U3 is connected with the resistor R17, No. 4 pin is respectively connected with the resistor R22 and the bidirectional thyristor Q2, the resistor R17 is connected with the bidirectional thyristor Q2, and the resistor VR1, the capacitor C9 and the bidirectional thyristor Q2 are connected in parallel.

3. The single-fire double-control intelligent dimming switch according to claim 1, wherein the power-getting circuit comprises two rectifier bridges DB1 and DB2, diodes D1-D4, voltage-stabilizing diodes ZD1 and ZD2, resistors R8-R12, capacitors C6-C8, capacitors EC1 and EC2, an inductor L1, a transformer T1 and a power chip U1 which are connected,

no. 3 pins of the rectifier bridges DB1 and DB2 are connected together and connected to an alternating current input end Lin, No. 2 pins of the bidirectional controllable silicon on each trigger circuit are connected to No. 2 pins of the bidirectional controllable silicon on each trigger circuit respectively, No. 1 pins of the bidirectional controllable silicon on each trigger circuit are connected together and connected to the diode D1, No. 4 pins of the bidirectional controllable silicon on each trigger circuit and connected together to the ground; the diode D1 is connected to pin No. 1 of the transformer T1 and the capacitor EC1 through the resistor R8 and the inductor L1 respectively, and the zener diode ZD1 is connected in parallel across the resistor R8;

the No. 4 pin of the power chip U1 is connected to the No. 4 pin of the transformer T1; pin No. 5 of the power chip U1 is connected to the ground through the resistor R12, pin No. 4 is connected to the ground through the capacitor C8, pin No. 3 is connected to the diode D2 through the diode ZD2 and the diode D4; pin 8 and pin 5 of the transformer T1 are connected to the diode D2 and the diode D3, respectively; the diode D2 and the diode D3 are respectively connected to the capacitor C6 and the capacitor EC2, the diode D2 is connected to the ground through the resistor R9, and the diode D3 is connected to the ground through the resistor R10 and the resistor R11.

4. The single-fire double-control intelligent dimming switch according to claim 1, wherein the zero point detection circuit comprises connected diodes D5-D7, a resistor R1, resistors R13-R15, a resistor R18, a resistor R19, a resistor R21, a triode Q3, an optocoupler U2, a capacitor C11 and a capacitor C12, wherein the triacs on the two trigger circuits are respectively connected to the resistor R13 and the resistor R14 through the diode D5 and the diode D6, and the resistor R13 is connected in series with the resistor R15, the resistor R18, the diode D7 and the capacitor C12 to an ac input common terminal Lin; the resistor R14 is connected in series with the resistor R19 and the resistor R21 to be connected to an input common end Lin, and the capacitor C11 is connected with the triode Q3 after being connected with the resistor R21 in parallel; the triode Q3 drives the optocoupler U2.

5. The single-fire double-control intelligent dimming switch according to claim 1, wherein the bleeder circuit comprises a MOS transistor Q5, a resistor R24, a resistor R25, a resistor R27, resistors R29-R32, a capacitor C13, and a compound triode Q6, wherein the MOS transistor Q5 is capable of conducting from HVDC to GND between two adjacent zero points of alternating current so as to compensate for zero point drift of the light source load under alternating current; the composite triode Q6 is respectively connected with the resistor R25, the resistor R31, the resistor R32 and the capacitor C13, the resistor R24 is connected with the capacitor C13 in parallel, and the resistor R27, the resistor R29, the resistor R30 and the MOS transistor Q5 are connected in parallel and connected with the composite triode Q6.

6. The single-fire double-control intelligent dimming switch according to any one of claims 1 to 5, further comprising a plurality of key circuits, wherein each key circuit comprises a key S, a resistor R and a capacitor C, the capacitor C and the key S are connected in parallel and then connected to the ground, one end of the resistor R is connected with the key S, and the other end of the resistor R is connected with 3.3V voltage.

7. The single-fire double-control intelligent dimming switch according to any one of claims 1 to 5, further comprising an indicating circuit, wherein the indicating circuit comprises a resistor R2, a resistor R6, a resistor R7, a resistor R33, a triode Q1, an indicating lamp LED1 and an LED2, the indicating lamp LED1 and the LED2 are respectively connected in series with the resistor R2 and the resistor R33 and then connected in parallel to the triode Q1, the pin No. 1 of the triode Q2 is respectively connected with the resistor R6 and the resistor R7, and the resistor R7 is grounded.

8. The single-fire double-control intelligent dimming switch according to any one of claims 1 to 5, further comprising a wireless connection circuit, wherein the wireless connection circuit comprises a Zigbee chip M1, a resistor R3, a resistor R4 and capacitors C2-C4, the No. 6 pin of the Zigbee chip M1 is respectively connected with the resistor R4 and the capacitor C4, and the capacitor C2, the capacitor C3 and the resistor R3 are connected in parallel with the No. 30, No. 29 and No. 28 pins of the Zigbee chip M1.

9. The single-fire double-control intelligent dimming switch according to any one of claims 1 to 5, wherein: further comprising:

the burning terminal is a pin header J1;

PCB connector P1, PCB connector P1 with get the electric circuit respectively, zero point detection circuit, trigger circuit with the bleeder circuit is connected.