CN215268790U

CN215268790U - Infrared remote control LED lamp capable of being used in combined mode

Info

Publication number: CN215268790U
Application number: CN202120554849.9U
Authority: CN
Inventors: 俞贤晓; 胡剑; 吴国明
Original assignee: Yingtan Yankon Lighting Co ltd; Zhejiang Sunlight Illuminating Lamp Co ltd; Zhejiang Yankon Group Co Ltd
Current assignee: Yingtan Yankon Lighting Co ltd; Zhejiang Sunlight Illuminating Lamp Co ltd; Zhejiang Yankon Group Co Ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-12-21
Anticipated expiration: 2031-03-18

Abstract

The utility model discloses an infrared remote control LED lamps and lanterns that can make up use of, when the exclusive use, if do not receive infrared signal, keep the high level between its positive signal end and the negative signal end, if receive infrared signal, then adjust luminance, and export corresponding digital electric signal between its positive signal end and negative signal end, when the combination is used, if all do not receive infrared signal, then all keep the high level between the positive signal end and the negative signal end of every infrared remote control LED lamps and lanterns, if at least one receives infrared signal, then this infrared remote control LED lamps and lanterns adjust luminance, and export corresponding digital electric signal between its positive output end and negative output end, every infrared remote control LED lamps and lanterns all can acquire the digital electric signal of other infrared remote control LED lamps and lanterns output and adjust luminance; the infrared remote control LED lamp has the advantages that the infrared remote control LED lamp can be used independently and can be used in combination with multiple lamps, and when the multiple lamps are used in combination, the infrared signals can simultaneously remotely control the multiple infrared remote control LED lamps.

Description

Infrared remote control LED lamp capable of being used in combined mode

Technical Field

The utility model relates to an infrared remote control LED lamps and lanterns especially relate to an infrared remote control LED lamps and lanterns that can make up use.

Background

Traditional LED lamps and lanterns control through the switch of fixed mounting, and the simple operation nature is not enough, has gradually been replaced by the remote control LED lamps and lanterns through remote controller remote control at present. The remote control LED lamp has the advantages of convenience and flexibility, can adjust light through a remote controller, and is widely used.

The remote control LED lamp is provided with a live wire connecting end and a zero line connecting end, when the remote control LED lamp is used, the live wire connecting end and the zero line connecting end are correspondingly connected with a live wire and a zero line of commercial power, and after a control signal sent by a remote controller is received, corresponding light is sent out after the luminous intensity and the color temperature (including colors) are set based on the control signal. As shown in fig. 1, a currently commonly used remote control LED lamp mainly includes an LED lamp circuit (abbreviated as "dimming lamp circuit") capable of dimming by PWM signal and a remote control receiving control circuit (abbreviated as "remote control circuit"), where the dimming lamp circuit has a live line input terminal, a zero line input terminal, n PWM ports, a positive voltage terminal and a negative voltage terminal, n is an integer greater than or equal to 1, a working voltage of the remote control circuit is provided between the positive voltage terminal and the negative voltage terminal of the dimming lamp circuit, the remote control circuit has n PWM output terminals, a positive electrode and a negative electrode, and the working voltage is connected between the positive electrode and the negative electrode of the remote control circuit. And the live wire input end and the zero line input end of the dimming lamp circuit are used as the live wire connecting end and the zero line connecting end of the remote control LED lamp. The positive voltage end of the dimming lamp circuit is connected with the positive electrode of the remote control circuit, the negative voltage end of the dimming lamp circuit is connected with the negative electrode of the remote control circuit, and the n PWM ports of the dimming lamp circuit are connected with the n PWM ports of the remote control circuit in a one-to-one correspondence mode. After the dimming lamp circuit is connected to the mains supply voltage, the voltage is output between the positive output end and the negative output end of the dimming lamp circuit to provide working voltage for the remote control circuit, the remote control circuit outputs a default PWM signal, and the dimming lamp circuit sets corresponding luminous intensity and color temperature (including color) according to the connected PWM signal. When the remote control circuit receives a control signal sent by the remote controller, different PWM signals are output at the n PWM ports according to a specified protocol, and the dimming lamp circuit sets the luminous intensity and the color temperature (including the color) in real time according to the n PWM signals accessed by the n PWM ports.

The existing remote control LED lamp is mainly divided into a wireless remote control LED lamp and an infrared remote control LED lamp, a control signal sent by a remote controller (namely a wireless remote controller) of the wireless remote control LED lamp is a radio signal, and a control signal sent by a remote controller (namely an infrared remote controller) of the infrared remote control LED lamp is an infrared signal. Radio signals have no propagation directivity and have a wall-through function, while infrared signals have directivity and do not have the wall-through characteristic, so that the two control signals respectively have advantages in different application occasions, but also have obvious disadvantages respectively. When a radio signal is used as a remote control signal, if two remote control LED lamps are used in the same room, the function of dimming the two remote control LED lamps independently and simultaneously can be easily realized through unified coding; however, if the two remote control LED lamps belong to two rooms respectively and cannot be coded uniformly, when the two codes are the same and the wireless remote controller is used in one room, the remote control LED lamp in the other room is controlled simultaneously to interfere with the control of the other remote control LED lamp; in addition, the control of radio signals in various countries and regions also shows a trend of being stricter. Therefore, the use of wireless remote control LED lamps currently using radio signals as control signals is increasingly limited. The infrared remote control LED lamp using the infrared signal as the remote control signal is almost not limited, and has cost advantage when being used as a common remote control. When the existing infrared remote control LED lamp is used, although the infrared signal of the existing infrared remote control LED lamp cannot interfere with the control of the infrared remote control LED lamp in a next room, because of the influence of factors such as the emission angle, whether the infrared signal is blocked, the emission distance and the like, the infrared signal sent by the remote controller cannot guarantee that a plurality of infrared remote control LED lamps in the same room can be remotely controlled at the same time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a infrared remote control LED lamps and lanterns that can make up use is provided, and this infrared remote control LED lamps and lanterns can reach the exclusive use, can many lamps and lanterns combined use again, and when many lamps and lanterns combined use, a plurality of infrared remote control LED lamps and lanterns that infrared ray signal that the remote controller sent can remote control the combined use simultaneously.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an infrared remote control LED lamp capable of being used in combination is provided with a live wire input end, a zero line input end, a positive signal end and a negative signal end, wherein a remote control signal is output between the positive signal end and the negative signal end of the infrared remote control LED lamp; when one infrared remote control LED lamp is used independently, the live wire input end of the infrared remote control LED lamp is connected with the live wire of commercial power, the zero wire input end of the commercial power is connected with the zero wire of the commercial power, when the commercial power is connected, the infrared remote control LED lamp can adjust the light, at the moment, if the infrared remote control LED lamp does not receive the infrared signal sent by the infrared remote control, the high level is kept between the positive signal end and the negative signal end of the infrared remote control LED lamp, if the infrared remote control LED lamp receives the infrared signal sent by the infrared remote control, the light adjusting can be carried out by setting the light emitting brightness and the color temperature according to the infrared signal, and a digital electric signal corresponding to the received infrared signal can be output between the positive signal end and the negative signal end of the infrared remote control LED lamp; when m infrared remote control LED lamps are used in combination, m is an integer larger than or equal to 2, the live wire input ends of the m infrared remote control LED lamps are connected with the live wire of commercial power, the zero wire input ends of the m infrared remote control LED lamps are connected with the zero wire of the commercial power, the positive signal ends of the m infrared remote control LED lamps are connected together, the negative signal ends of the m infrared remote control LED lamps are connected together, when the commercial power is connected, the infrared remote controller can adjust the light of the m infrared remote control LED lamps, at the moment, if the m infrared remote control LED lamps do not receive the infrared signals sent by the infrared remote controller, the high level is kept between the positive signal ends and the negative signal ends of the m infrared remote control LED lamps, if one or more of the m infrared remote control LED lamps receive the infrared signals sent by the infrared remote controller, the infrared remote control LED lamps receiving the infrared signal can set the luminance and the color temperature thereof to adjust the light according to the infrared signal, and can output the digital electrical signal corresponding to the received infrared signal between the positive output terminal and the negative output terminal thereof, each of the m infrared remote control LED lamps can acquire the digital electrical signal output between the positive signal terminal and the negative signal terminal of the other infrared remote control LED lamps through the positive signal terminal and the negative signal terminal thereof regardless of whether the infrared signal transmitted by the wireless remote controller is received, and set the luminance and the color temperature thereof to adjust the light based on the accessed digital electrical signal.

When m infrared remote control LED lamps are combined together for use, a plurality of infrared remote control LED lamps with the same coding address are used as a lamp unit, an infrared signal sent by an infrared remote controller has a coding address, when one infrared remote control LED lamp receives the infrared signal with the coding address, the coding address of the infrared remote control LED lamp is compared with the coding address of the infrared signal, if the coding address of the infrared remote control LED lamp is consistent with the coding address of the infrared signal, the infrared remote control LED lamp can set corresponding luminous intensity and color temperature according to the received infrared signal to adjust the light, and outputs a corresponding digital electric signal between a positive signal end and a negative signal end of the infrared remote control LED lamp, otherwise, the current state is kept unchanged, and other infrared remote control LED lamps do not receive the infrared signal, the corresponding infrared signal and the coding address can be obtained based on the digital electric signal output by the infrared remote control LED lamp, then the obtained coding address is compared with the self coding address, if the obtained coding address is consistent with the self coding address, the corresponding luminous intensity and color temperature are set according to the infrared signal to adjust the light, if the obtained coding address is inconsistent with the self coding address, the current state is kept unchanged, and therefore the plurality of infrared remote control LED lamps in the same lamp unit are adjusted the light at the same time.

The infrared remote control LED lamp comprises an LED lamp circuit capable of dimming through PWM signals and a remote control receiving control circuit, the LED lamp circuit capable of dimming through PWM signals is called a dimming lamp circuit for short, the remote control receiving control circuit is called a remote control circuit for short, the dimming lamp circuit is provided with a live wire input end, a zero line input end, a first PWM port, a second PWM port, a positive voltage end and a negative voltage end, the first PWM port and the second PWM port are respectively provided with a positive PWM end and a negative PWM end, an isolation constant voltage is provided between the positive voltage end and the negative voltage end of the dimming lamp circuit to serve as a working voltage of the remote control circuit, the remote control circuit is provided with a first PWM output port, a second PWM output port, a positive signal end, a negative signal end, a positive pole and a negative pole, the first PWM output port and the second PWM port are respectively provided with a positive PWM end and a negative PWM end, working voltage is connected between the anode and the cathode of the remote control circuit, the live wire input end of the dimming lamp circuit is used as the live wire connecting end of the infrared remote control LED lamp, the zero line input end of the dimming lamp circuit is used as the zero line connecting end of the infrared remote control LED lamp, the positive voltage end of the dimming lamp circuit is connected with the positive electrode of the remote control circuit, the negative voltage end of the dimming lamp circuit is connected with the negative electrode of the remote control circuit, the first PWM port of the dimming lamp circuit is correspondingly connected with the first PWM output port of the remote control circuit, the second PWM port of the dimming lamp circuit is correspondingly connected with the second PWM output port of the remote control circuit, a first PWM output port and a second PWM output port of the remote control circuit respectively output a PWM control signal; the infrared remote control LED lamp comprises an infrared remote control LED lamp, a remote control circuit, a decoding output circuit and a remote control circuit, wherein the positive signal end of the remote control circuit is the positive signal end of the infrared remote control LED lamp, the negative signal end of the remote control circuit is the negative signal end of the infrared remote control LED lamp, the remote control circuit comprises an infrared receiving circuit and the decoding output circuit, the infrared receiving circuit is provided with a positive electrode, a negative electrode and an output end, the decoding output circuit is provided with a positive electrode, a negative electrode, an input end, a first PWM positive electrode, a first PWM negative electrode, a second PWM positive electrode and a second PWM negative electrode, the positive electrode of the infrared receiving circuit is connected with the positive electrode of the decoding output circuit, and the connecting end of the infrared receiving circuit is the positive electrode of the remote control circuit; the cathode of the infrared receiving circuit is connected with the cathode of the decoding output circuit, the connecting end of the infrared receiving circuit is the cathode of the remote control circuit, and is also the negative signal end of the remote control circuit, the output end of the infrared receiving circuit is connected with the input end of the decoding output circuit, and the connecting end is the positive signal end of the remote control circuit, the first PWM positive pole of the decoding output circuit is the positive PWM end of the first PWM port of the remote control circuit, the negative pole of the first PWM of the decoding output circuit is the negative PWM end of the first PWM port of the remote control circuit, the second PWM positive pole of the decoding output circuit is the positive PWM end of the second PWM port of the remote control circuit, and the negative pole of the second PWM of the decoding output circuit is the negative PWM end of the second PWM port of the remote control circuit.

The infrared receiving circuit comprises a first resistor, a second resistor, a third resistor, a first capacitor, an infrared receiving head, a first NMOS (N-channel metal oxide semiconductor) tube and a second NMOS tube, wherein the infrared receiving head is provided with a positive electrode, a negative electrode and an output end, one end of the first resistor, one end of the second resistor and one end of the third resistor are connected, the connecting end of the first resistor, one end of the second resistor and the positive electrode of the third resistor are connected, the output end of the infrared receiving head is connected with the grid electrode of the first NMOS tube, the drain electrode of the first NMOS tube, the other end of the second resistor and the grid electrode of the second NMOS tube are connected, the drain electrode of the second NMOS tube is connected with the other end of the third resistor, the connecting end of the second NMOS tube is the output end of the infrared receiving circuit, the other end of the first capacitor, the negative electrode of the infrared receiving head, the source electrode of the first NMOS and the source electrode of the second NMOS tube are connected, and the connecting end of the first capacitor and the source electrode of the second NMOS tube is the negative electrode of the infrared receiving circuit; the decoding output circuit comprises a fourth resistor, a fifth resistor, a first optical coupler, a second optical coupler, a decoding circuit and three dial switches, wherein the first optical coupler and the second optical coupler are respectively provided with an anode, a cathode, a collector and an emitter, the decoding circuit adopts a remote control decoding single chip microcomputer packaged by SOP8 and is provided with an anode, a cathode, a signal input end, a PWM1 end, a PWM2 end and three digital ends, the three digital ends of the remote control decoding single chip microcomputer are respectively connected with one ends of the three dial switches in a one-to-one correspondence manner, the cathode of the remote control decoding single chip microcomputer is connected with the other ends of the three dial switches, the connecting end of the remote control decoding single chip microcomputer is the cathode of the decoding output circuit, the signal input end of the remote control decoding single chip microcomputer is the input end of the decoding output circuit, the anode of the remote control decoding single chip microcomputer, one end of the fourth resistor and one end of the fifth resistor are connected, and the connecting end of the remote control decoding single chip microcomputer is the decoding output circuit The other end of the fourth resistor is connected with the anode of the first optical coupler, the other end of the fifth resistor is connected with the anode of the second optical coupler, the cathode of the first optical coupler is connected with the PWM1 end of the remote control decoding single chip microcomputer, the cathode of the second optical coupler is connected with the PWM2 end of the remote control decoding single chip microcomputer, and the collector of the first optical coupler is the first PWM anode of the decoding output circuit; the transmitting electrode of the first optical coupler is a first PWM negative electrode of the decoding output circuit; the collector of the second optical coupler is the second PWM positive pole of the decoding output circuit; and the transmitting electrode of the second optical coupler is a second PWM negative electrode of a second PWM output end of the decoding output circuit. The encoding address is set by setting three dial switches in the circuit, wherein the three dial switches can set 8 different encoding addresses, a decoding output circuit is constructed by matching with a common remote control decoding single chip microcomputer packaged by SOP8, and the circuit structure is simple and the cost is low on the basis of meeting the decoding output function.

The dimming lamp circuit comprises a constant current drive circuit, a first LED light-emitting circuit, a second LED light-emitting circuit and a color temperature control circuit, wherein the constant current drive circuit is provided with a live wire input end, a zero line input end, a positive PWM end, a negative PWM end, a positive voltage end, a negative voltage end, a positive output end and a negative output end, the first LED light-emitting circuit is a high color temperature LED light-emitting circuit, the second LED light-emitting circuit is a low color temperature LED light-emitting circuit, the first LED light-emitting circuit and the second LED light-emitting circuit are respectively provided with a positive pole and a negative pole, the color temperature control circuit is provided with a first output end, a second output end, a negative pole and a PWM end, the live wire input end of the constant current drive circuit is the live wire input end of the dimming lamp circuit, the zero line input end of the constant current drive circuit is the zero line input end of the dimming lamp circuit, and the positive PWM end of the constant current drive circuit is the positive PWM end of the first PWM port of the dimming circuit, the negative PWM end of the constant current driving circuit is the negative PWM end of the first PWM port of the dimming lamp circuit, the positive voltage end of the constant current driving circuit is the positive voltage end of the dimming lamp circuit, the negative voltage end of the constant current driving circuit is the negative voltage end of the dimming lamp circuit, the PWM end of the color temperature control circuit is the positive PWM end of the second PWM port of the dimming lamp circuit, the negative pole of the color temperature control circuit is the negative PWM end of the second PWM port of the dimming lamp circuit, the positive output end of the constant current driving circuit is respectively connected with the positive pole of the first LED light-emitting circuit and the positive pole of the second LED light-emitting circuit, the negative pole of the first LED light-emitting circuit is connected with the first output end of the color temperature control circuit, and the negative pole of the second LED light-emitting circuit is connected with the second output end of the color temperature control circuit, and the cathode of the color temperature control circuit is connected with the negative output end of the constant current driving circuit.

The constant current driving circuit adopts an isolation constant current circuit scheme taking a chip with the model number of SY5882 as a core control chip as a basic scheme, namely an isolation constant current circuit for short, wherein the isolation constant current circuit is provided with two alternating current input ends, a current output end anode, a current output end cathode and a PWM dimming port which are connected with commercial power, the two alternating current input ends of the isolation constant current circuit are respectively used as a live wire input end and a zero line input end of the constant current driving circuit, the current output end anode and the current output end cathode of the isolation constant current circuit are respectively used as a positive output end and a negative output end of the constant current driving circuit, the PWM dimming port of the isolation constant current circuit is a positive PWM end of the constant current driving circuit, and a GND pin of the chip SY5882 is a negative PWM end of the constant current driving circuit; the constant current driving circuit further comprises a voltage auxiliary coil, a first diode, a second capacitor, a first integrated circuit and a third capacitor, wherein the voltage auxiliary coil is one coil in a high-frequency isolation transformer arranged in the isolation constant current circuit, the second capacitor is an electrolytic capacitor, the first integrated circuit is a three-terminal voltage stabilizing circuit and is provided with an input end, an output end and a negative electrode, one end of the voltage auxiliary coil is connected with the positive electrode of the first diode, the negative electrode of the first diode and the positive electrode of the second capacitor are connected with the input end of the three-terminal voltage stabilizing circuit, the output end of the three-terminal voltage stabilizing circuit is connected with one end of the third capacitor, the connecting end of the three-terminal voltage stabilizing circuit is the positive voltage end of the constant current driving circuit, and the other end of the voltage auxiliary coil, the negative electrode of the second capacitor, the first integrated circuit and the third capacitor, The negative electrode of the three-terminal voltage stabilizing circuit is connected with the other end of the third capacitor, and the connecting end of the three-terminal voltage stabilizing circuit is the negative voltage end of the constant current driving circuit. In the circuit, an isolation constant current circuit scheme taking SY5882 as a core control chip is adopted as a core technology, when the duty ratio of a PWM dimming port of the isolation constant current circuit is more than or equal to 2.5 percent, constant current output is performed between a positive output end and a negative output end of a constant current driving circuit, and when the duty ratio of the PWM dimming port of the isolation constant current circuit is less than 2.5 percent, constant voltage output is performed between the positive output end and the negative output end of the constant current driving circuit, and the output voltage is lower than the voltage for driving the first LED light-emitting circuit and the second LED light-emitting circuit to emit light, so when the duty ratio of the PWM dimming port of the isolation constant current circuit is less than 2.5 percent, such as the duty ratio is 1 percent, the voltage output between the positive output end and the negative output end of the constant current driving circuit cannot drive the first LED light-emitting circuit and the second LED light-emitting circuit to emit light, but the working voltage required by the remote control circuit is kept between the positive output end and the negative output end, therefore, an isolated voltage power supply which is independently arranged for providing voltage for the remote control circuit can be omitted, and the cost is reduced.

Compared with the prior art, the utility model has the advantages that the live wire input end, the zero line input end, the positive signal end and the negative signal end are arranged at the infrared remote control LED lamp, the remote control signal is output between the positive signal end and the negative signal end of the infrared remote control LED lamp, when one infrared remote control LED lamp is used independently, the live wire input end of the infrared remote control LED lamp is connected with the live wire of the commercial power, the zero line input end is connected with the zero line of the commercial power, when the commercial power is connected, the infrared remote controller can adjust the light of the infrared remote control LED lamp, at the moment, if the infrared remote control LED lamp does not receive the infrared signal sent by the infrared remote controller, the high level is kept between the positive signal end and the negative signal end, if the infrared remote control LED lamp receives the infrared signal sent by the infrared remote controller, the light-emitting brightness and the color temperature can be set according to the infrared signal for adjusting the light, when m infrared remote control LED lamps are combined for use, m is an integer larger than or equal to 2, the live wire input ends of the m infrared remote control LED lamps are all connected with the live wire of commercial power, the zero wire input ends of the m infrared remote control LED lamps are all connected with the zero wire of the commercial power, the positive signal ends of the m infrared remote control LED lamps are connected together, the negative signal ends of the m infrared remote control LED lamps are connected together, when the commercial power is connected, the infrared remote controller can adjust the light of the m infrared remote control LED lamps, at the moment, if the m infrared remote control LED lamps do not receive the infrared signals sent by the infrared remote controller, the high level is kept between the positive signal ends and the negative signal ends of the m infrared remote control LED lamps, if one or more of the m infrared remote control LED lamps receive the infrared signals sent by the infrared remote controller, the infrared remote control LED lamps receiving the infrared signal can set the brightness and the color temperature thereof to perform dimming according to the infrared signal, each infrared remote control LED lamp in the m infrared remote control LED lamps can acquire the digital electric signals output between the positive signal end and the negative signal end of other infrared remote control LED lamps through the positive signal end and the negative signal end of each infrared remote control LED lamp regardless of whether the infrared signals sent by the wireless remote controller are received, and the brightness and the color temperature of the digital electric signals are set for dimming based on the received digital electric signals, therefore, the infrared remote control LED lamp of the utility model can be used alone or in combination with a plurality of lamps, when a plurality of lamps are combined for use, an infrared signal sent by the remote controller can simultaneously remotely control a plurality of infrared remote control LED lamps combined for use.

Drawings

FIG. 1 is a block diagram of a prior art remote LED lamp;

fig. 2 is a connection diagram of the infrared remote control LED lamp capable of being combined for use according to the present invention;

fig. 3 is a structural diagram of an infrared remote control circuit of the infrared remote control LED lamp of the present invention;

fig. 4 is a circuit diagram of an infrared remote control circuit of the infrared remote control LED lamp of the present invention;

fig. 5 is a structural diagram of a dimming lamp circuit of the infrared remote control LED lamp of the present invention;

fig. 6 is a circuit diagram of the constant current driving circuit of the infrared remote control LED lamp of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example (b): an infrared remote control LED lamp capable of being used in combination is provided with a live wire input end, a zero line input end, a positive signal end and a negative signal end, wherein a remote control signal is output between the positive signal end and the negative signal end of the infrared remote control LED lamp; when an infrared remote control LED lamp is used independently, the live wire input end of the infrared remote control LED lamp is connected with the live wire of commercial power, the zero wire input end of the commercial power is connected with the zero wire of the commercial power, when the commercial power is connected, the infrared remote control LED lamp can adjust the light, at the moment, if the infrared remote control LED lamp does not receive the infrared signal sent by the infrared remote control, the high level is kept between the positive signal end and the negative signal end of the infrared remote control LED lamp, if the infrared remote control LED lamp receives the infrared signal sent by the infrared remote control, the light adjusting is carried out by setting the light emitting brightness and the color temperature of the infrared remote control LED lamp according to the infrared signal, and a digital electric signal corresponding to the received infrared signal is output between the positive signal end and the negative signal end of the infrared remote control LED lamp; as shown in fig. 2, when m infrared remote control LED lamps are used in combination, m is an integer greater than or equal to 2, the live wire input ends of the m infrared remote control LED lamps are all connected to the live wire of the commercial power, the zero line input ends of the m infrared remote control LED lamps are all connected to the zero line of the commercial power, the positive signal ends of the m infrared remote control LED lamps are connected together, the negative signal ends of the m infrared remote control LED lamps are connected together, when the commercial power is connected, the infrared remote controller can adjust the light of the m infrared remote control LED lamps, at this time, if none of the m infrared remote control LED lamps receives the infrared signal sent by the infrared remote controller, the positive signal end and the negative signal end of the m infrared remote control LED lamps keep high level, and if one or more of the m infrared remote control LED lamps receives the infrared signal sent by the infrared remote controller, the infrared remote control LED lamps receiving the infrared signal set the luminance and the color temperature thereof to adjust the light according to the infrared signal And a digital electric signal corresponding to the received infrared signal is output between the positive output end and the negative output end of the infrared remote control LED lamp, and each infrared remote control LED lamp in the m infrared remote control LED lamps can acquire the digital electric signals output between the positive signal end and the negative signal end of other infrared remote control LED lamps through the positive signal end and the negative signal end of the infrared remote control LED lamp, and set the luminous brightness and the color temperature of the infrared remote control LED lamps to adjust the light based on the accessed digital electric signals, regardless of whether the infrared signals sent by the wireless remote controller are received.

In the embodiment, the infrared remote control LED lamp is internally provided with a coder for setting the serial number address, when m infrared remote control LED lamps are combined together for use, a plurality of infrared remote control LED lamps with the same code address are taken as a lamp unit, the infrared signal sent by the infrared remote controller has the code address, when one infrared remote control LED lamp receives the infrared signal with the code address, the code address of the infrared remote control LED lamp is firstly compared with the code address carried by the infrared signal, if the two are consistent, the infrared remote control LED lamp can set the corresponding luminous intensity and color temperature according to the received infrared signal to carry out dimming, and outputs the corresponding digital electric signal between the positive signal end and the negative signal end, otherwise, the current state is kept unchanged, and other infrared remote control LED lamps do not receive the infrared signal, the corresponding infrared signal and the coding address can be obtained based on the digital electric signal output by the infrared remote control LED lamp, then the obtained coding address is compared with the self coding address, if the obtained coding address is consistent with the self coding address, the corresponding luminous intensity and color temperature are set according to the infrared signal to adjust the light, if the obtained coding address is inconsistent with the self coding address, the current state is kept unchanged, and therefore the plurality of infrared remote control LED lamps in the same lamp unit are adjusted the light at the same time.

As shown in fig. 3, in this embodiment, the infrared remote control LED lamp includes an LED lamp circuit capable of dimming by PWM signal and a remote control receiving control circuit, the LED lamp circuit capable of dimming by PWM signal is abbreviated as dimming lamp circuit, the remote control receiving control circuit is abbreviated as remote control circuit, the dimming lamp circuit has a live wire input terminal, a zero wire input terminal, a first PWM port, a second PWM port, a positive voltage terminal and a negative voltage terminal, the first PWM port and the second PWM port have a positive PWM terminal and a negative PWM terminal, respectively, an isolation constant voltage is provided between the positive voltage terminal and the negative voltage terminal of the dimming lamp circuit as a working voltage of the remote control circuit, the remote control circuit has a first PWM output port, a second PWM output port, a positive signal terminal, a negative signal terminal, a positive electrode and a negative electrode, the first PWM output port and the second PWM port have a positive PWM terminal and a negative PWM terminal, respectively, working voltage is connected between the positive electrode and the negative electrode of the remote control circuit, the live wire input end of the dimming lamp circuit is used as the live wire connecting end of the infrared remote control LED lamp, the zero wire input end of the dimming lamp circuit is used as the zero wire connecting end of the infrared remote control LED lamp, the positive voltage end of the dimming lamp circuit is connected with the positive electrode of the remote control circuit, the negative voltage end of the dimming lamp circuit is connected with the negative electrode of the remote control circuit, a first PWM (pulse width modulation) port of the dimming lamp circuit is correspondingly connected with a first PWM (pulse width modulation) output port of the remote control circuit, a second PWM port of the dimming lamp circuit is correspondingly connected with a second PWM output port of the remote control circuit, and the first PWM output port and the second PWM output port of the remote control circuit respectively output a PWM control signal; the positive signal end of the remote control circuit is the positive signal end of the infrared remote control LED lamp, the negative signal end of the remote control circuit is the negative signal end of the infrared remote control LED lamp, the remote control circuit comprises an infrared receiving circuit and a decoding output circuit, the infrared receiving circuit is provided with a positive pole, a negative pole and an output end, the decoding output circuit is provided with a positive pole, a negative pole, an input end, a first PWM positive pole, a first PWM negative pole, a second PWM positive pole and a second PWM negative pole, the positive pole of the infrared receiving circuit is connected with the positive pole of the decoding output circuit, and the connecting end of the infrared receiving circuit is the positive pole of the remote control circuit; the negative pole of the infrared receiving circuit is connected with the negative pole of the decoding output circuit, the connecting end of the infrared receiving circuit is the negative pole of the remote control circuit, and the infrared receiving circuit is also the negative signal end of the remote control circuit, the output end of the infrared receiving circuit is connected with the input end of the decoding output circuit, the connecting end of the infrared receiving circuit is the positive signal end of the remote control circuit, the positive pole of the first PWM of the decoding output circuit is the positive PWM end of the first PWM port of the remote control circuit, the negative pole of the first PWM of the decoding output circuit is the negative PWM end of the first PWM port of the remote control circuit, the positive pole of the second PWM of the decoding output circuit is the positive PWM end of the second PWM port of the remote control circuit, and the negative pole of the second PWM of the decoding output circuit is the negative PWM end of the second PWM port of the remote control circuit.

As shown in fig. 4, in this embodiment, the infrared receiving circuit includes a first resistor R1, a second resistor R2, a third resistor R3, a first capacitor C1, an infrared receiving terminal U1, a first NMOS transistor Q1 and a second NMOS transistor Q2, the infrared receiving terminal U1 has a positive electrode, a negative electrode and an output end, one end of the first resistor R1, one end of the second resistor R2 and one end of the third resistor R3 are connected, and a connection end thereof is the positive electrode of the infrared receiving circuit, the other end of the first resistor R1, one end of the first capacitor C1 and the positive electrode of the infrared receiving terminal U1 are connected, an output end of the infrared receiving terminal U1 and a gate of the first NMOS transistor Q1 are connected, a drain of the first NMOS transistor Q1, the other end of the second resistor R2 and a gate of the second NMOS transistor Q2 are connected, a drain of the second NMOS transistor Q2 and the other end of the third resistor R3 are connected, and a connection end thereof is the connection end of the infrared receiving terminal 1, and a connection end of the infrared receiving circuit C4934 is connected to the output end of the first resistor R3, and the infrared receiving terminal of the first resistor R4834 is connected to the first resistor R1 and the second resistor R3, and the second resistor R3 is connected to the second resistor R3, and the second resistor R3 is connected to the infrared receiving circuit, The cathode of the infrared receiving head U1 is connected with the source electrode of the first NMOS tube Q1 and the source electrode of the second NMOS tube Q2, and the connecting end of the infrared receiving head U1 is the cathode of the infrared receiving circuit; the decoding output circuit comprises a fourth resistor R4, a fifth resistor R5, a first optical coupler N1, a second optical coupler N2, a decoding circuit and three dial switches K1, K2 and K3, wherein the first optical coupler N1 and the second optical coupler N2 are respectively provided with an anode, a cathode, a collector and an emitter, the decoding circuit adopts a remote control decoding singlechip U2 packaged by SOP8 and is provided with an anode, a cathode, a signal input end, a PWM1 end, a PWM2 end and three digital ends, the three digital ends of the remote control decoding singlechip U2 are respectively connected with one end of the three dial switches K1, K2 and K3 in a one-to-one correspondence manner, the cathode of the remote control decoding singlechip U2 is connected with the other ends of the three dial switches K1, K2 and K3, the connecting end of the remote control decoding singlechip U2 is the cathode of the decoding output circuit, the signal input end of the decoding singlechip U2 is the anode of the first resistor R4 and the positive connecting end of the decoding resistor R5 and the output circuit, the other end of the fourth resistor R4 is connected with the anode of the first optical coupler N1, the other end of the fifth resistor R5 is connected with the anode of the second optical coupler N2, the cathode of the first optical coupler N1 is connected with the PWM1 end of the remote control decoding single-chip microcomputer U2, the cathode of the second optical coupler N2 is connected with the PWM2 end of the remote control decoding single-chip microcomputer U2, and the collector of the first optical coupler N1 is the first PWM positive electrode of the decoding output circuit; the emitting electrode of the first optical coupler N1 is the first PWM negative electrode of the decoding output circuit; the collector of the second optocoupler N2 is the second PWM positive pole of the decoding output circuit; the transmitting electrode of the second optocoupler N2 is a second PWM negative electrode of the second PWM output of the decoding output circuit.

As shown in fig. 5, in this embodiment, the dimming lamp circuit includes a constant current driving circuit, a first LED lighting circuit, a second LED lighting circuit, and a color temperature control circuit, the constant current driving circuit has a live wire input terminal, a null wire input terminal, a positive PWM terminal, a negative PWM terminal, a positive voltage terminal, a negative voltage terminal, a positive output terminal, and a negative output terminal, the first LED lighting circuit is a high color temperature LED lighting circuit, the second LED lighting circuit is a low color temperature LED lighting circuit, the first LED lighting circuit and the second LED lighting circuit each have a positive electrode and a negative electrode, the color temperature control circuit has a first output terminal, a second output terminal, a negative electrode, and a PWM terminal, the live wire input terminal of the constant current driving circuit is the live wire input terminal of the dimming lamp circuit, the null wire input terminal of the constant current driving circuit is the null wire input terminal of the dimming lamp circuit, the positive PWM terminal of the constant current driving circuit is the positive PWM terminal of the first PWM port of the dimming lamp circuit, the negative PWM end of the constant current driving circuit is the negative PWM end of a first PWM port of the dimming lamp circuit, the positive voltage end of the constant current driving circuit is the positive voltage end of the dimming lamp circuit, the negative voltage end of the constant current driving circuit is the negative voltage end of the dimming lamp circuit, the PWM end of the color temperature control circuit is the positive PWM end of a second PWM port of the dimming lamp circuit, the negative electrode of the color temperature control circuit is the negative PWM end of the second PWM port of the dimming lamp circuit, the positive output end of the constant current driving circuit is respectively connected with the positive electrode of the first LED light-emitting circuit and the positive electrode of the second LED light-emitting circuit, the negative electrode of the first LED light-emitting circuit is connected with the first output end of the color temperature control circuit, the negative electrode of the second LED light-emitting circuit is connected with the second output end of the color temperature control circuit, and the negative electrode of the color temperature control circuit is connected with the negative output end of the constant current driving circuit.

As shown in fig. 6, in this embodiment, the constant current driving circuit adopts an isolation constant current circuit scheme using a chip with a model number SY5882 as a core control chip as a basic scheme, which is referred to as an isolation constant current circuit for short, the isolation constant current circuit has two ac input ends connected to mains supply, a current output end anode, a current output end cathode and a PWM dimming port, the two ac input ends of the isolation constant current circuit are respectively used as a live wire input end and a zero line input end of the constant current driving circuit, the current output end anode and the current output end cathode of the isolation constant current circuit are respectively used as a positive output end and a negative output end of the constant current driving circuit, the PWM dimming port of the isolation constant current circuit is a positive PWM end of the constant current driving circuit, and a GND pin of the chip SY5882 is a negative PWM end of the constant current driving circuit; the constant current driving circuit also comprises a voltage auxiliary coil Nav, a first diode D1, a second capacitor C2, a first integrated circuit U3 and a third capacitor C3, the voltage auxiliary coil Nav is a coil in a high-frequency isolation transformer arranged in an isolation constant current circuit, the second capacitor C2 is an electrolytic capacitor, the first integrated circuit U3 is a three-terminal voltage stabilizing circuit and is provided with an input end, an output end and a negative electrode, one end of the voltage auxiliary coil Nav is connected with the positive electrode of the first diode D1, the negative electrode of the first diode D1, the positive electrode of the second capacitor C2 and the input end of the three-terminal voltage stabilizing circuit are connected, the output end of the three-terminal voltage stabilizing circuit is connected with one end of the third capacitor C3, the connecting end of the three-terminal voltage stabilizing circuit is a positive voltage end of the constant current driving circuit, the other end of the voltage auxiliary coil Nav, the negative electrode of the second capacitor C2, the negative electrode of the three-terminal voltage stabilizing circuit and the other end of the third capacitor C3 are connected, and the connecting end of the three-terminal voltage stabilizing circuit is a negative voltage end of the constant current driving circuit.

Claims

1. An infrared remote control LED lamp capable of being used in combination is characterized by comprising a live wire input end, a zero line input end, a positive signal end and a negative signal end, wherein a remote control signal is output between the positive signal end and the negative signal end of the infrared remote control LED lamp; when one infrared remote control LED lamp is used independently, the live wire input end of the infrared remote control LED lamp is connected with the live wire of commercial power, the zero wire input end of the commercial power is connected with the zero wire of the commercial power, when the commercial power is connected, the infrared remote control LED lamp can adjust the light, at the moment, if the infrared remote control LED lamp does not receive the infrared signal sent by the infrared remote control, the high level is kept between the positive signal end and the negative signal end of the infrared remote control LED lamp, if the infrared remote control LED lamp receives the infrared signal sent by the infrared remote control, the light adjusting can be carried out by setting the light emitting brightness and the color temperature according to the infrared signal, and a digital electric signal corresponding to the received infrared signal can be output between the positive signal end and the negative signal end of the infrared remote control LED lamp; when m infrared remote control LED lamps are used in combination, m is an integer larger than or equal to 2, the live wire input ends of the m infrared remote control LED lamps are connected with the live wire of commercial power, the zero wire input ends of the m infrared remote control LED lamps are connected with the zero wire of the commercial power, the positive signal ends of the m infrared remote control LED lamps are connected together, the negative signal ends of the m infrared remote control LED lamps are connected together, when the commercial power is connected, the infrared remote controller can adjust the light of the m infrared remote control LED lamps, at the moment, if the m infrared remote control LED lamps do not receive the infrared signals sent by the infrared remote controller, the high level is kept between the positive signal ends and the negative signal ends of the m infrared remote control LED lamps, if one or more of the m infrared remote control LED lamps receive the infrared signals sent by the infrared remote controller, the infrared remote control LED lamps receiving the infrared signal can set the luminance and the color temperature thereof to adjust the light according to the infrared signal, and can output the digital electrical signal corresponding to the received infrared signal between the positive output terminal and the negative output terminal thereof, each of the m infrared remote control LED lamps can acquire the digital electrical signal output between the positive signal terminal and the negative signal terminal of the other infrared remote control LED lamps through the positive signal terminal and the negative signal terminal thereof regardless of whether the infrared signal transmitted by the wireless remote controller is received, and set the luminance and the color temperature thereof to adjust the light based on the accessed digital electrical signal.

2. The infrared remote control LED lamp capable of being used in combination according to claim 1, wherein the infrared remote control LED lamp has an encoder for setting the serial number address, when m infrared remote control LED lamps are used in combination, a plurality of infrared remote control LED lamps with the same coded address are used as a lamp unit, the infrared signal emitted by the infrared remote controller has the coded address, when one infrared remote control LED lamp receives the infrared signal with the coded address, the coded address of the infrared remote control LED lamp is compared with the coded address carried by the infrared signal, if the coded address and the coded address are consistent, the infrared remote control LED lamp can adjust the light according to the corresponding luminous intensity and color temperature of the received infrared signal, and output the corresponding digital electric signal between the positive signal end and the negative signal end, otherwise, the current state is kept unchanged, and at the moment, even if other infrared remote control LED lamps do not receive the infrared signals, the corresponding infrared signals and the coding addresses can be obtained based on the digital electric signals output by the infrared remote control LED lamps, then the obtained coding addresses are compared with the self coding addresses, if the obtained coding addresses are consistent with the self coding addresses, the corresponding luminous intensity and color temperature are set according to the infrared signals to carry out dimming, and if the obtained coding addresses are inconsistent with the self coding addresses, the current state is kept unchanged, so that a plurality of infrared remote control LED lamps in the same lamp unit are dimmed at the same time.

3. The infrared remote-control LED lamp capable of being used in combination according to claim 2, characterized in that the infrared remote-control LED lamp comprises an LED lamp circuit capable of dimming through PWM signals and a remote-control receiving control circuit, the LED lamp circuit capable of dimming through PWM signals is called a dimming lamp circuit for short, the remote-control receiving control circuit is called a remote-control circuit for short, the dimming lamp circuit is provided with a live wire input end, a zero wire input end, a first PWM port, a second PWM port, a positive voltage end and a negative voltage end, the first PWM port and the second PWM port are respectively provided with a positive PWM end and a negative PWM end, an isolation constant voltage is provided between the positive voltage end and the negative voltage end of the dimming lamp circuit to serve as a working voltage of the remote-control circuit, and the remote-control circuit is provided with a first PWM output port, a second PWM output port and a negative voltage end, The first PWM output port and the second PWM port are respectively provided with a positive PWM end and a negative PWM end, working voltage is connected between the positive pole and the negative pole of the remote control circuit, the live wire input end of the dimming lamp circuit is used as the live wire connecting end of the infrared remote control LED lamp, the zero wire input end of the dimming lamp circuit is used as the zero wire connecting end of the infrared remote control LED lamp, the positive voltage end of the dimming lamp circuit is connected with the positive pole of the remote control circuit, the negative voltage end of the dimming lamp circuit is connected with the negative pole of the remote control circuit, the first PWM port of the dimming lamp circuit is correspondingly connected with the first PWM output port of the remote control circuit, and the second PWM port of the dimming lamp circuit is correspondingly connected with the second PWM output port of the remote control circuit, a first PWM output port and a second PWM output port of the remote control circuit respectively output a PWM control signal; the infrared remote control LED lamp comprises an infrared remote control LED lamp, a remote control circuit, a decoding output circuit and a remote control circuit, wherein the positive signal end of the remote control circuit is the positive signal end of the infrared remote control LED lamp, the negative signal end of the remote control circuit is the negative signal end of the infrared remote control LED lamp, the remote control circuit comprises an infrared receiving circuit and the decoding output circuit, the infrared receiving circuit is provided with a positive electrode, a negative electrode and an output end, the decoding output circuit is provided with a positive electrode, a negative electrode, an input end, a first PWM positive electrode, a first PWM negative electrode, a second PWM positive electrode and a second PWM negative electrode, the positive electrode of the infrared receiving circuit is connected with the positive electrode of the decoding output circuit, and the connecting end of the infrared receiving circuit is the positive electrode of the remote control circuit; the cathode of the infrared receiving circuit is connected with the cathode of the decoding output circuit, the connecting end of the infrared receiving circuit is the cathode of the remote control circuit, and is also the negative signal end of the remote control circuit, the output end of the infrared receiving circuit is connected with the input end of the decoding output circuit, and the connecting end is the positive signal end of the remote control circuit, the first PWM positive pole of the decoding output circuit is the positive PWM end of the first PWM port of the remote control circuit, the negative pole of the first PWM of the decoding output circuit is the negative PWM end of the first PWM port of the remote control circuit, the second PWM positive pole of the decoding output circuit is the positive PWM end of the second PWM port of the remote control circuit, and the negative pole of the second PWM of the decoding output circuit is the negative PWM end of the second PWM port of the remote control circuit.

4. The infrared remote-control LED lamp set according to claim 3, wherein the infrared receiving circuit comprises a first resistor, a second resistor, a third resistor, a first capacitor, an infrared receiving head, a first NMOS tube and a second NMOS tube, the infrared receiving head has an anode, a cathode and an output end, one end of the first resistor, one end of the second resistor and one end of the third resistor are connected and the connection end is the anode of the infrared receiving circuit, the other end of the first resistor, one end of the first capacitor and the anode of the infrared receiving head are connected, the output end of the infrared receiving head is connected with the gate of the first NMOS tube, the drain of the first NMOS tube, the other end of the second resistor and the gate of the second NMOS tube are connected, the drain of the second NMOS tube is connected with the other end of the third resistor and the connection end is the infrared receiving circuit The other end of the first capacitor, the cathode of the infrared receiving head, the source of the first NMOS tube and the source of the second NMOS tube are connected, and the connecting end of the output end of the first capacitor is the cathode of the infrared receiving circuit; the decoding output circuit comprises a fourth resistor, a fifth resistor, a first optical coupler, a second optical coupler, a decoding circuit and three dial switches, wherein the first optical coupler and the second optical coupler are respectively provided with an anode, a cathode, a collector and an emitter, the decoding circuit adopts a remote control decoding single chip microcomputer packaged by SOP8 and is provided with an anode, a cathode, a signal input end, a PWM1 end, a PWM2 end and three digital ends, the three digital ends of the remote control decoding single chip microcomputer are respectively connected with one ends of the three dial switches in a one-to-one correspondence manner, the cathode of the remote control decoding single chip microcomputer is connected with the other ends of the three dial switches, the connecting end of the remote control decoding single chip microcomputer is the cathode of the decoding output circuit, the signal input end of the remote control decoding single chip microcomputer is the input end of the decoding output circuit, the anode of the remote control decoding single chip microcomputer, one end of the fourth resistor and one end of the fifth resistor are connected, and the connecting end of the remote control decoding single chip microcomputer is the decoding output circuit The other end of the fourth resistor is connected with the anode of the first optical coupler, the other end of the fifth resistor is connected with the anode of the second optical coupler, the cathode of the first optical coupler is connected with the PWM1 end of the remote control decoding single chip microcomputer, the cathode of the second optical coupler is connected with the PWM2 end of the remote control decoding single chip microcomputer, and the collector of the first optical coupler is the first PWM anode of the decoding output circuit; the transmitting electrode of the first optical coupler is a first PWM negative electrode of the decoding output circuit; the collector of the second optical coupler is the second PWM positive pole of the decoding output circuit; and the transmitting electrode of the second optical coupler is a second PWM negative electrode of a second PWM output end of the decoding output circuit.

5. The infrared remote control LED lamp capable of being used in combination according to claim 3, wherein the dimming circuit comprises a constant current driving circuit, a first LED light emitting circuit, a second LED light emitting circuit and a color temperature control circuit, the constant current driving circuit comprises a live wire input end, a zero line input end, a positive PWM end, a negative PWM end, a positive voltage end, a negative voltage end, a positive output end and a negative output end, the first LED light emitting circuit is a high color temperature LED light emitting circuit, the second LED light emitting circuit is a low color temperature LED light emitting circuit, the first LED light emitting circuit and the second LED light emitting circuit both have a positive electrode and a negative electrode, the color temperature control circuit comprises a first output end, a second output end, a negative electrode and a PWM end, the live wire input end of the constant current driving circuit is the live wire input end of the dimming circuit, the zero line input end of the constant current driving circuit is the zero line input end of the dimming circuit, the positive PWM end of the constant current driving circuit is the positive PWM end of the first PWM port of the dimming lamp circuit, the negative PWM end of the constant current driving circuit is the negative PWM end of the first PWM port of the dimming lamp circuit, the positive voltage end of the constant current driving circuit is the positive voltage end of the dimming lamp circuit, the negative voltage end of the constant current driving circuit is the negative voltage end of the dimming lamp circuit, the PWM end of the color temperature control circuit is the positive PWM end of the second PWM port of the dimming lamp circuit, the negative pole of the color temperature control circuit is the negative PWM end of the second PWM port of the dimming lamp circuit, the positive output end of the constant current driving circuit is respectively connected with the positive pole of the first LED light-emitting circuit and the positive pole of the second LED light-emitting circuit, and the negative pole of the first LED light-emitting circuit is connected with the first output end of the first LED light-emitting circuit, and the cathode of the second LED light-emitting circuit is connected with the second output end of the color temperature control circuit, and the cathode of the color temperature control circuit is connected with the negative output end of the constant current drive circuit.

6. The infrared remote-control LED lamp capable of being used in combination as claimed in claim 5, wherein the constant current driving circuit adopts an isolation constant current circuit scheme, referred to as isolation constant current circuit for short, with a chip of type SY5882 as a core control chip as a basic scheme, the isolated constant current circuit is provided with two alternating current input ends connected with commercial power, a current output end anode, a current output end cathode and a PWM light modulation port, the two alternating current input ends of the isolation constant current circuit are respectively used as the live wire input end and the zero line input end of the constant current driving circuit, the positive pole and the negative pole of the current output end of the isolation constant current circuit are respectively used as the positive output end and the negative output end of the constant current drive circuit, the PWM dimming port of the isolation constant current circuit is a positive PWM end of the constant current driving circuit, and a GND pin of a chip SY5882 is a negative PWM end of the constant current driving circuit; the constant current driving circuit further comprises a voltage auxiliary coil, a first diode, a second capacitor, a first integrated circuit and a third capacitor, wherein the voltage auxiliary coil is one coil in a high-frequency isolation transformer arranged in the isolation constant current circuit, the second capacitor is an electrolytic capacitor, the first integrated circuit is a three-terminal voltage stabilizing circuit and is provided with an input end, an output end and a negative electrode, one end of the voltage auxiliary coil is connected with the positive electrode of the first diode, the negative electrode of the first diode and the positive electrode of the second capacitor are connected with the input end of the three-terminal voltage stabilizing circuit, the output end of the three-terminal voltage stabilizing circuit is connected with one end of the third capacitor, the connecting end of the three-terminal voltage stabilizing circuit is the positive voltage end of the constant current driving circuit, and the other end of the voltage auxiliary coil, the negative electrode of the second capacitor, the first integrated circuit and the third capacitor, The negative electrode of the three-terminal voltage stabilizing circuit is connected with the other end of the third capacitor, and the connecting end of the three-terminal voltage stabilizing circuit is the negative voltage end of the constant current driving circuit.