An infrared remote-controlled LED lamp that can be used in combination

Abstract

The invention discloses an infrared remote-controlled LED lamp that can be used in combination. When used alone, if no infrared signal is received, a high level is maintained between the positive signal end and the negative signal end of the infrared remote-controlled LED lamp. If an infrared signal is received, dimming is performed and a corresponding digital electrical signal is output between the positive signal end and the negative signal end of the infrared remote-controlled LED lamp. When used in combination, if no infrared signal is received, a high level is maintained between the positive signal end and the negative signal end of each infrared remote-controlled LED lamp. If at least one infrared signal is received, the infrared remote-controlled LED lamp is dimmed and a corresponding digital electrical signal is output between the positive output end and the negative output end of the infrared remote-controlled LED lamp. Each infrared remote-controlled LED lamp can obtain the digital electrical signals output by other infrared remote-controlled LED lamps for dimming. The invention has the advantage that the infrared remote-controlled LED lamp can be used alone or in combination with multiple lamps. When multiple lamps are used in combination, the infrared signal can remotely control multiple infrared remote-controlled LED lamps at the same time.

Description

Technical Field

[0001] The invention relates to an infrared remote-controlled LED lamp, in particular to an infrared remote-controlled LED lamp that can be used in combination. Background Art

[0002] Traditional LED lamps are controlled by fixed switches, which are not convenient to operate. They are gradually being replaced by remote-controlled LED lamps. Remote-controlled LED lamps are not only convenient and flexible, but can also be dimmed by remote control, and have been widely used.

[0003] The remote control LED lamp has a live wire connection terminal and a neutral wire connection terminal. When in use, the live wire connection terminal and the neutral wire connection terminal are connected to the live wire and the neutral wire of the mains electricity. After receiving the control signal sent by the remote control, the luminous intensity and color temperature (including color) are set based on the control signal and the corresponding light is emitted. Figure 1 As shown, the currently commonly used remote-controlled LED lamps mainly include an LED lamp circuit that can be dimmed by a PWM signal (referred to as a dimming lamp circuit) and a remote control receiving control circuit (referred to as a remote control control circuit). The dimming lamp circuit has a live input terminal, a neutral input terminal, n PWM ports, a positive voltage terminal and a negative voltage terminal, where n is an integer greater than or equal to 1. The positive voltage terminal and the negative voltage terminal of the dimming lamp circuit are used to provide a working voltage for the remote control circuit. The remote control circuit has n PWM output terminals, a positive pole and a negative pole, and the working voltage is connected between the positive pole and the negative pole of the remote control circuit. The live input terminal and the neutral input terminal of the dimming lamp circuit serve as the live connection terminal and the neutral connection terminal of the remote-controlled LED lamp. The positive voltage terminal of the dimming lamp circuit is connected to the positive pole of the remote control circuit, and the negative voltage terminal of the dimming lamp circuit is connected to the negative pole of the remote control circuit. The n PWM ports of the dimming lamp circuit and the n PWM ports of the remote control circuit are connected one by one. After the dimming lamp circuit is connected to the mains voltage, the voltage between its positive output terminal and negative output terminal is output to provide the working voltage for the remote control circuit. The remote control circuit outputs the default PWM signal, and the dimming lamp circuit sets the corresponding luminous intensity and color temperature (including color) according to the connected PWM signal. When the remote control circuit receives the control signal sent by the remote control, it outputs different PWM signals at the n PWM ports according to the prescribed protocol, and the dimming lamp circuit sets the luminous intensity and color temperature (including color) in real time according to the n PWM signals connected to its n PWM ports.

[0004] Existing remote-controlled LED lamps are mainly divided into wireless remote-controlled LED lamps and infrared remote-controlled LED lamps. The control signal sent by the remote control of wireless remote-controlled LED lamps (i.e. wireless remote control) is a radio signal, and the control signal sent by the remote control of infrared remote-controlled LED lamps (i.e. infrared remote control) is an infrared signal. Radio signals have no propagation directionality and have the function of penetrating walls, while infrared signals have directionality and do not have the characteristics of penetrating walls. Therefore, the two control signals have their own advantages in different application scenarios, but also have obvious disadvantages. When using radio signals as remote control signals, if two remote-controlled LED lamps are used in the same room, the functions of dimming the two remote-controlled LED lamps individually and simultaneously can be easily realized through unified coding; however, if the two remote-controlled LED lamps belong to two rooms respectively and cannot be uniformly coded, then when the two codes are the same, when a radio remote control is used in one room, the remote-controlled LED lamp in another room will be controlled at the same time, interfering with the control of the other remote-controlled LED lamp; in addition, the control of radio signals in various countries and regions is also showing an increasingly strict trend. As a result, the use of wireless remote-controlled LED lamps that currently use radio signals as control signals is subject to more and more restrictions. Infrared remote control LED lamps that use infrared signals as remote control signals are almost not subject to restrictions and have cost advantages as ordinary remote control applications. When using existing infrared remote control LED lamps, although their infrared signals will not interfere with the control of infrared remote control LED lamps in the next room, due to the influence of factors such as the infrared signal transmission angle, whether it is blocked and the transmission distance, the infrared signal emitted by the remote control cannot guarantee that it can simultaneously control multiple infrared remote control LED lamps in the same room. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an infrared remote-controlled LED lamp that can be used in combination. The infrared remote-controlled LED lamp can be used alone or in combination of multiple lamps. When multiple lamps are used in combination, the infrared signal emitted by the remote control can simultaneously control multiple infrared remote-controlled LED lamps used in combination.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: an infrared remote-controlled LED lamp that can be used in combination, having a live wire input terminal, a neutral wire input terminal, a positive signal terminal and a negative signal terminal, and the positive signal terminal and the negative signal terminal of the infrared remote-controlled LED lamp are used to output a remote control signal; when one of the infrared remote-controlled LED lamps is used alone, the live wire input terminal of the infrared remote-controlled LED lamp is connected to the live wire of the mains, and the neutral wire input terminal is connected to the neutral wire of the mains. When the mains is connected, the infrared remote controller can dim the infrared remote-controlled LED lamp. At this time, if the infrared remote-controlled LED lamp is not connected to the mains, the infrared remote controller can dim the infrared remote-controlled LED lamp. When receiving the infrared signal sent by the infrared remote controller, a high level is maintained between the positive signal terminal and the negative signal terminal. If the infrared remote-controlled LED lamp receives the infrared signal sent by the infrared remote controller, its luminous brightness and color temperature are set according to the infrared signal for dimming, and a digital electrical signal corresponding to the received infrared signal is output between the positive signal terminal and the negative signal terminal. When m infrared remote-controlled LED lamps are used in combination, m is an integer greater than or equal to 2, the live wire input terminals of the m infrared remote-controlled LED lamps are all connected to the live wire of the AC power supply, and the neutral wire input terminals of the m infrared remote-controlled LED lamps are connected to the live wire of the AC power supply. The positive signal ends of the m infrared remote-controlled LED lamps are connected together, and the negative signal ends of the m infrared remote-controlled LED lamps are connected together. When the mains is connected, the infrared remote controller can dim the m infrared remote-controlled LED lamps. At this time, if none of the m infrared remote-controlled LED lamps receive the infrared signal sent by the infrared remote controller, the positive signal end and the negative signal end of the m infrared remote-controlled LED lamps are kept at a high level. If one or more of the m infrared remote-controlled LED lamps receive the infrared signal sent by the infrared remote controller, , then these infrared remote-controlled LED lamps that receive infrared signals set their luminous brightness and color temperature for dimming according to the infrared signals, and output digital electrical signals corresponding to the received infrared signals between their positive output terminals and negative output terminals. Each of the m infrared remote-controlled LED lamps, regardless of whether it receives the infrared signal sent by the wireless remote controller, can obtain the digital electrical signals output between the positive signal terminal and the negative signal terminal of other infrared remote-controlled LED lamps through its positive signal terminal and negative signal terminal, and set its luminous brightness and color temperature for dimming based on the received digital electrical signals.

[0007] The infrared remote-controlled LED lamp has an encoder for setting its number address inside. When m infrared remote-controlled LED lamps are used together, multiple infrared remote-controlled LED lamps with the same code address are used as a lamp unit. At this time, the infrared signal emitted by the infrared remote controller carries the code address. When an infrared remote-controlled LED lamp receives an infrared signal with a code address, it first compares its own code address with the code address carried by the infrared signal. If the two are consistent, the infrared remote-controlled LED lamp will set the corresponding luminous intensity and color temperature according to the received infrared signal for dimming, and output the corresponding digital electrical signal between its positive signal terminal and negative signal terminal. Otherwise, the current state remains unchanged. At this time, even if other infrared remote-controlled LED lamps do not receive infrared signals, they can obtain the corresponding infrared signal and code address based on the digital electrical signal output by the infrared remote-controlled LED lamp, and then compare the obtained code address with their own code address. If they are consistent, the corresponding luminous intensity and color temperature are set according to the infrared signal for dimming. If they are inconsistent, the current state remains unchanged. As a result, multiple infrared remote-controlled LED lamps in the same lamp unit are dimmed at the same time.

[0008] The infrared remote control LED lamp comprises an LED lamp circuit capable of dimming by a PWM signal and a remote control receiving control circuit. The LED lamp circuit capable of dimming by a PWM signal is referred to as a dimming lamp circuit, and the remote control receiving control circuit is referred to as a remote control circuit. The dimming lamp circuit has a live wire input terminal, a neutral 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. The positive voltage terminal and the negative voltage terminal of the dimming lamp circuit are used to provide an isolated constant voltage as the working voltage of the remote control control circuit. The remote control control circuit has a first PWM output port, a second PWM output port, a positive signal terminal, a negative signal terminal, a positive pole and a negative pole. The first PWM output port and the second PWM port have a positive PWM terminal and a negative PWM terminal respectively. The working voltage is connected between the positive pole and the negative pole of the remote control circuit. The live wire input terminal of the dimming lamp circuit serves as the live wire connection terminal of the infrared remote control LED lamp, and the neutral wire input terminal of the dimming lamp circuit serves as the The neutral line connection end, the positive voltage end of the dimming lamp circuit is connected to the positive pole of the remote control circuit, the negative voltage end of the dimming lamp circuit is connected to the negative pole of the remote control circuit, the first PWM port of the dimming lamp circuit is connected to the first PWM output port of the remote control circuit, the second PWM port of the dimming lamp circuit is connected to the second PWM output port of the remote control circuit, 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 includes an infrared receiving circuit and a decoding output circuit, the infrared receiving circuit has a positive pole, a negative pole and an output end, the decoding output circuit has 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 to the positive pole of the decoding output circuit and its connection end is the positive pole of the remote control circuit;The negative electrode of the infrared receiving circuit is connected to the negative electrode of the decoding output circuit, and the connection end is the negative electrode of the remote control circuit, and also the negative signal end of the remote control circuit. The output end of the infrared receiving circuit is connected to the input end of the decoding output circuit, and the connection end is the positive signal end of the remote control circuit. The first PWM positive electrode of the decoding output circuit is the positive PWM end of the first PWM port of the remote control circuit, the first PWM negative electrode of the decoding output circuit is the negative PWM end of the first PWM port of the remote control circuit, the second PWM positive electrode of the decoding output circuit is the positive PWM end of the second PWM port of the remote control circuit, and the second PWM negative electrode of the decoding output circuit is the negative PWM end of the second PWM port of the remote control circuit.

[0009] 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, wherein the infrared receiving head has 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 and the connection end is the positive electrode of the infrared receiving circuit, the other end of the first resistor, one end of the first capacitor and the positive electrode of the infrared receiving head are connected, the output end of the infrared receiving head and the gate of the first NMOS tube are connected, the drain of the first NMOS tube, the other end of the second resistor and the second NMOS tube are connected. The gate of the infrared receiving head is connected, the drain of the second NMOS tube is connected to the other end of the third resistor and the connection end 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 of the first NMOS and the source of the second NMOS tube are connected and the connection end is the negative electrode of the infrared receiving circuit; the decoding output circuit includes a fourth resistor, a fifth resistor, a first optical coupler, a second optical coupler, a decoding circuit and three dip switches, the first optical coupler and the second optical coupler have an anode, a cathode, a collector and an emitter respectively, and the decoding circuit adopts a remote control decoding unit packaged in SOP8. The microcontroller has a positive electrode, a negative electrode, a signal input terminal, a PWM1 terminal, a PWM2 terminal and three digital terminals. The three digital terminals of the remote control decoding microcontroller are respectively connected to one end of the three dial switches in a one-to-one correspondence. The negative electrode of the remote control decoding microcontroller is connected to the other end of the three dial switches and the connection end thereof is the negative electrode of the decoding output circuit. The signal input terminal of the remote control decoding microcontroller is the input end of the decoding output circuit. The positive electrode of the remote control decoding microcontroller, one end of the fourth resistor and one end of the fifth resistor are connected and the connection end thereof is the positive electrode of the decoding output circuit. The other end of the fourth resistor is connected to the anode of the first optical coupler. The other end of the fifth resistor is connected to the anode of the second optical coupler, the cathode of the first optical coupler is connected to the PWM1 end of the remote control decoding microcontroller, the cathode of the second optical coupler is connected to the PWM2 end of the remote control decoding microcontroller, the collector of the first optical coupler is the first PWM positive electrode of the decoding output circuit; the emitter of the first optical coupler is the first PWM negative electrode of the decoding output circuit; the collector of the second optical coupler is the second PWM positive electrode of the decoding output circuit; the emitter of the second optical coupler is the second PWM negative electrode of the second PWM output end of the decoding output circuit.In this circuit, the coding address is set by setting three dip switches, among which the three dip switches can set 8 different coding addresses. The decoding output circuit is constructed with the commonly used remote control decoding microcontroller in SOP8 package. On the basis of meeting the decoding output function, the circuit structure is simple and the cost is low.

[0010] The dimming lamp circuit includes a constant current drive circuit, a first LED light-emitting circuit, a second LED light-emitting circuit and a color temperature control circuit. The constant current drive circuit has a live wire input terminal, a neutral 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 light-emitting circuit is a high color temperature LED light-emitting circuit, and the second LED light-emitting circuit is a low color temperature LED light-emitting circuit. Both the first LED light-emitting circuit and the second LED light-emitting circuit 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 drive circuit is the live wire input terminal of the dimming lamp circuit, the neutral wire input terminal of the constant current drive circuit is the neutral wire input terminal of the dimming lamp circuit, the positive PWM terminal of the constant current drive circuit is the positive PWM terminal of the first PWM port of the dimming lamp circuit, and the The negative PWM end of the constant current drive circuit is the negative PWM end of the first PWM port of the dimming lamp circuit, the positive voltage end of the constant current drive circuit is the positive voltage end of the dimming lamp circuit, the negative voltage end of the constant current drive 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 drive circuit is respectively connected to 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 to the first output end of the color temperature control circuit, the negative pole of the second LED light-emitting circuit is connected to the second output end of the color temperature control circuit, and the negative pole of the color temperature control circuit is connected to the negative output end of the constant current drive circuit.

[0011] The constant current drive circuit adopts an isolated constant current circuit scheme with a chip model SY5882 as the core control chip as the basic scheme, referred to as an isolated constant current circuit. The isolated constant current circuit has two AC input terminals connected to the mains, a positive current output terminal, a negative current output terminal and a PWM dimming port. The two AC input terminals of the isolated constant current circuit are respectively used as the live input terminal and the neutral input terminal of the constant current drive circuit. The positive current output terminal and the negative current output terminal of the isolated constant current circuit are respectively used as the positive output terminal and the negative output terminal of the constant current drive circuit. The PWM dimming port of the isolated constant current circuit is the positive PWM terminal of the constant current drive circuit, and the GND foot of the chip SY5882 is the negative PWM terminal of the constant current drive circuit; the constant current drive circuit also includes a voltage auxiliary coil, a first diode, and a second capacitor. , a first integrated circuit and a third capacitor, wherein the voltage auxiliary coil is a coil in a high-frequency isolation transformer arranged in the isolated constant current circuit, the second capacitor is an electrolytic capacitor, the first integrated circuit is a three-terminal voltage stabilizing circuit, having an input end, an output end and a negative electrode, one end of the voltage auxiliary coil is connected to the positive electrode of the first diode, the negative electrode of the first diode, the positive electrode of the second capacitor 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 to one end of the third capacitor and the connection end thereof is the positive voltage end of the constant current drive circuit, the other end of the voltage auxiliary coil, the negative electrode of the second capacitor, the negative electrode of the three-terminal voltage stabilizing circuit and the other end of the third capacitor are connected and the connection end thereof is the negative voltage end of the constant current drive circuit. In this circuit, an isolated constant current circuit scheme with SY5882 as the core control chip is adopted as the core technology. When the duty cycle of the PWM dimming port of the isolated constant current circuit is greater than or equal to 2.5%, the positive output terminal and the negative output terminal of the constant current drive circuit are constant current outputs, and when the duty cycle of the PWM dimming port of the isolated constant current circuit is less than 2.5%, the positive output terminal and the negative output terminal of the constant current drive circuit are constant voltage outputs, 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. Therefore, when the duty cycle of the PWM dimming port of the isolated constant current circuit is less than 2.5%, for example, the duty cycle is 1%, the voltage output between the positive output terminal and the negative output terminal of the constant current drive circuit cannot drive the first LED light-emitting circuit and the second LED light-emitting circuit to emit light, but the working voltage required for the output remote control circuit is maintained between the positive output terminal and the negative output terminal, thereby omitting the isolated voltage power supply independently provided for providing voltage to the remote control circuit, thereby reducing the cost.

[0012] Compared with the prior art, the advantage of the present invention is that by arranging a live wire input terminal, a neutral wire input terminal, a positive signal terminal and a negative signal terminal at the infrared remote control LED lamp, the positive signal terminal and the negative signal terminal of the infrared remote control LED lamp are used to output a remote control signal. When an infrared remote control LED lamp is used alone, the live wire input terminal of the infrared remote control LED lamp is connected to the live wire of the mains, and the neutral wire input terminal is connected to the neutral wire of the mains. When the mains is connected, the infrared remote control can dim the infrared remote control LED lamp. At this time, if the infrared remote control LED lamp does not receive the infrared signal sent by the infrared remote control, the positive signal terminal and the negative signal terminal are connected. The positive signal terminal and the negative signal terminal of the infrared remote control LED lamp are connected to the live wire of the mains, and the neutral wire input terminals of the m infrared remote control LED lamps are connected to the neutral wire of the mains. The positive signal terminals of the m infrared remote control LED lamps are connected together, and the m infrared remote control LED lamps are connected to the positive signal terminal of the mains. When connected to the mains, the infrared remote controller can dim the m infrared remote-controlled LED lamps. At this time, if none of the m infrared remote-controlled LED lamps receive the infrared signal sent by the infrared remote controller, the positive signal terminal and the negative signal terminal of the m infrared remote-controlled LED lamps maintain a high level. If one or more of the m infrared remote-controlled LED lamps receive the infrared signal sent by the infrared remote controller, the infrared remote-controlled LED lamps that receive the infrared signal set their luminous brightness and color temperature according to the infrared signal for dimming, and output the corresponding color temperature between their positive output terminal and negative output terminal. The infrared remote-controlled LED lamps of the present invention can be used as a digital electrical signal of the infrared signal received. Each infrared remote-controlled LED lamp in the m infrared remote-controlled LED lamps, regardless of whether it receives the infrared signal sent by the wireless remote controller, can obtain the digital electrical signal output between the positive signal end and the negative signal end of other infrared remote-controlled LED lamps through its positive signal end and negative signal end, and set its luminous brightness and color temperature for dimming based on the received digital electrical signal. Therefore, the infrared remote-controlled LED lamp of the present invention can be used alone or in combination of multiple lamps. When multiple lamps are used in combination, the infrared signal sent by the remote controller can simultaneously remotely control multiple infrared remote-controlled LED lamps used in combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of an existing remote-controlled LED lamp;

[0014] Figure 2 It is a connection diagram of the infrared remote-controlled LED lamps that can be used in combination of the present invention when used in combination;

[0015] Figure 3 It is a structural diagram of an infrared remote control circuit of an infrared remote control LED lamp that can be used in combination according to the present invention;

[0016] Figure 4 A circuit diagram of an infrared remote control circuit for an infrared remote control LED lamp that can be used in combination with the present invention;

[0017] Figure 5 It is a structural diagram of a dimming lamp circuit of an infrared remote-controlled LED lamp that can be used in combination with the present invention;

[0018] Figure 6 The circuit diagram is a constant current driving circuit of an infrared remote-controlled LED lamp that can be used in combination according to the present invention. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below with reference to the accompanying drawings.

[0020] Embodiment: An infrared remote-controlled LED lamp that can be used in combination has a live wire input terminal, a neutral wire input terminal, a positive signal terminal and a negative signal terminal. The positive signal terminal and the negative signal terminal of the infrared remote-controlled LED lamp are used to output a remote control signal. When an infrared remote-controlled LED lamp is used alone, the live wire input terminal of the infrared remote-controlled LED lamp is connected to the live wire of the mains, and the neutral wire input terminal is connected to the neutral wire of the mains. When the mains is connected, the infrared remote controller can dim the infrared remote-controlled LED lamp. At this time, if the infrared remote-controlled LED lamp does not receive the infrared signal sent by the infrared remote controller, a high level is maintained between its positive signal terminal and the negative signal terminal. If the infrared remote-controlled LED lamp receives the infrared signal sent by the infrared remote controller, its luminous brightness and color temperature are set according to the infrared signal for dimming, and a digital electrical signal corresponding to the received infrared signal is output between its positive signal terminal and the negative signal terminal.

[0021] like Figure 2As shown, when m infrared remote-controlled 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-controlled LED lamps are all connected to the live wire of the mains, the neutral wire input ends of the m infrared remote-controlled LED lamps are all connected to the neutral wire of the mains, the positive signal ends of the m infrared remote-controlled LED lamps are connected together, and the negative signal ends of the m infrared remote-controlled LED lamps are connected together. When the mains is connected, the infrared remote controller can dim the m infrared remote-controlled LED lamps. At this time, if the m infrared remote-controlled LED lamps do not receive the infrared signal sent by the infrared remote controller, the positive signal end and the negative signal end of the m infrared remote-controlled LED lamps are kept at a high level. If the m infrared remote controllers If one or more of the m infrared remote-controlled LED lamps receive an infrared signal sent by the infrared remote controller, then these infrared remote-controlled LED lamps that receive the infrared signal set their luminous brightness and color temperature for dimming according to the infrared signal, and output a digital electrical signal corresponding to the received infrared signal between their positive output terminal and negative output terminal. Each of the m infrared remote-controlled LED lamps, regardless of whether it receives the infrared signal sent by the wireless remote controller, can obtain the digital electrical signal output between the positive signal terminal and the negative signal terminal of other infrared remote-controlled LED lamps through its positive signal terminal and negative signal terminal, and set its luminous brightness and color temperature for dimming based on the received digital electrical signal.

[0022] In this embodiment, the infrared remote-controlled LED lamp has an encoder for setting its number address inside. When m infrared remote-controlled LED lamps are used together, multiple infrared remote-controlled LED lamps with the same code address are used as a lamp unit. At this time, the infrared signal emitted by the infrared remote controller carries the code address. When an infrared remote-controlled LED lamp receives an infrared signal with a code address, it first compares its own code address with the code address carried by the infrared signal. If the two are consistent, the infrared remote-controlled LED lamp will set the corresponding luminous intensity and color temperature according to the received infrared signal for dimming, and output the corresponding digital electrical signal between its positive signal terminal and negative signal terminal. Otherwise, the current state remains unchanged. At this time, even if other infrared remote-controlled LED lamps do not receive the infrared signal, they can obtain the corresponding infrared signal and code address based on the digital electrical signal output by the infrared remote-controlled LED lamp, and then compare the obtained code address with their own code address. If they are consistent, the corresponding luminous intensity and color temperature are set according to the infrared signal for dimming. If they are inconsistent, the current state remains unchanged. As a result, multiple infrared remote-controlled LED lamps in the same lamp unit are dimmed at the same time.

[0023] like Figure 3As shown, in this embodiment, the infrared remote control LED lamp includes an LED lamp circuit capable of dimming by a PWM signal and a remote control receiving control circuit. The LED lamp circuit capable of dimming by a PWM signal is referred to as a dimming lamp circuit, and the remote control receiving control circuit is referred to as a remote control circuit. The dimming lamp circuit has a live input terminal, a neutral 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. The positive voltage terminal and the negative voltage terminal of the dimming lamp circuit are used to provide an isolated constant voltage as a working voltage of the remote control circuit. The remote control circuit has a first PWM output port, a second PWM output The first PWM output port and the second PWM port have a positive PWM terminal and a negative PWM terminal respectively. The working voltage is connected between the positive and negative poles of the remote control circuit. The live wire input terminal of the dimming lamp circuit serves as the live wire connection terminal of the infrared remote control LED lamp. The neutral wire input terminal of the dimming lamp circuit serves as the neutral wire connection terminal of the infrared remote control LED lamp. The positive voltage terminal of the dimming lamp circuit is connected to the positive pole of the remote control circuit. The negative voltage terminal of the dimming lamp circuit is connected to the negative pole of the remote control circuit. The first PWM port of the dimming lamp circuit and the first PWM output port of the remote control circuit are connected correspondingly. The second PWM port of the dimming lamp circuit and the second PWM port of the remote control circuit The M output ports are connected correspondingly, 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, and 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 includes an infrared receiving circuit and a decoding output circuit. The infrared receiving circuit has a positive pole, a negative pole and an output end. The decoding output circuit has 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 to the positive pole of the decoding output circuit and its connection end is the positive pole of the remote control circuit; the infrared receiving circuit has a positive pole, a negative pole and an output end. The decoding output circuit has 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 to the positive pole of the decoding output circuit and its connection end is the positive pole of the remote control circuit. The negative electrode of the receiving circuit is connected to the negative electrode of the decoding output circuit, and the connection end is the negative electrode of the remote control circuit, which is also the negative signal end of the remote control circuit. The output end of the infrared receiving circuit is connected to the input end of the decoding output circuit, and the connection end is the positive signal end of the remote control circuit. The first PWM positive electrode of the decoding output circuit is the positive PWM end of the first PWM port of the remote control circuit, the first PWM negative electrode of the decoding output circuit is the negative PWM end of the first PWM port of the remote control circuit, the second PWM positive electrode of the decoding output circuit is the positive PWM end of the second PWM port of the remote control circuit, and the second PWM negative electrode of the decoding output circuit is the negative PWM end of the second PWM port of the remote control circuit.

[0024] like Figure 4As shown, 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 head U1, a first NMOS tube Q1 and a second NMOS tube Q2. The infrared receiving head 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 the connection end is the positive electrode of the infrared receiving circuit. The other end of the first resistor R1 and one end of the first capacitor C1 are connected to the positive electrode of the infrared receiving head U1. The output end of the infrared receiving head U1 is connected to the gate of the first NMOS tube Q1. The drain of the first NMOS tube Q1 and the other end of the second resistor R2 are connected to the positive electrode of the infrared receiving head U1. The gate of the second NMOS tube Q2 is connected, the drain of the second NMOS tube Q2 is connected to the other end of the third resistor R3 and the connection end thereof is the output end of the infrared receiving circuit, the other end of the first capacitor C1, the cathode of the infrared receiving head U1, the source of the first NMOS tube Q1 and the source of the second NMOS tube Q2 are connected and the connection end thereof is the cathode of the infrared receiving circuit; the decoding output circuit includes 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, the first optical coupler N1 and the second optical coupler N2 respectively have an anode, a cathode, a collector and an emitter, and the decoding circuit adopts The remote control decoding microcontroller U2 in SOP8 package has a positive pole, a negative pole, a signal input terminal, a PWM1 terminal, a PWM2 terminal and three digital terminals. The three digital terminals of the remote control decoding microcontroller U2 are respectively connected to one end of the three dip switches K1, K2 and K3 in a one-to-one correspondence. The negative pole of the remote control decoding microcontroller U2 is connected to the other end of the three dip switches K1, K2 and K3, and the connection end thereof is the negative pole of the decoding output circuit. The signal input terminal of the remote control decoding microcontroller U2 is the input terminal of the decoding output circuit. The positive pole of the remote control decoding microcontroller U2, one end of the fourth resistor R4 and one end of the fifth resistor R5 are connected, and the connection end thereof is the positive pole of the decoding output circuit. The other end is connected to the anode of the first optical coupler N1, the other end of the fifth resistor R5 is connected to the anode of the second optical coupler N2, the cathode of the first optical coupler N1 is connected to the PWM1 end of the remote control decoding microcontroller U2, the cathode of the second optical coupler N2 is connected to the PWM2 end of the remote control decoding microcontroller U2, the collector of the first optical coupler N1 is the first PWM positive electrode of the decoding output circuit; the emitter of the first optical coupler N1 is the first PWM negative electrode of the decoding output circuit; the collector of the second optical coupler N2 is the second PWM positive electrode of the decoding output circuit; the emitter of the second optical coupler N2 is the second PWM negative electrode of the second PWM output end of the decoding output circuit.

[0025] like Figure 5As shown, in this embodiment, the dimming lamp circuit includes 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 has a live wire input terminal, a neutral 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 light-emitting circuit is a high color temperature LED light-emitting circuit, and 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 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 neutral wire input terminal of the constant current driving circuit is the neutral wire input terminal of the dimming lamp circuit, and the positive PWM terminal of the constant current driving circuit is the first PWM terminal of the dimming lamp circuit. The positive PWM end of the M port, the negative PWM end of the constant current drive circuit is the negative PWM end of the first PWM port of the dimming lamp circuit, the positive voltage end of the constant current drive circuit is the positive voltage end of the dimming lamp circuit, the negative voltage end of the constant current drive 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 drive circuit is respectively connected to 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 to the first output end of the color temperature control circuit, the negative pole of the second LED light-emitting circuit is connected to the second output end of the color temperature control circuit, and the negative pole of the color temperature control circuit is connected to the negative output end of the constant current drive circuit.

[0026] like Figure 6As shown, in this embodiment, the constant current drive circuit adopts an isolated constant current circuit scheme with a chip model SY5882 as the core control chip as the basic scheme, referred to as an isolated constant current circuit, the isolated constant current circuit has two AC input terminals connected to the mains, a positive current output terminal, a negative current output terminal and a PWM dimming port, the two AC input terminals of the isolated constant current circuit are respectively used as the live input terminal and the neutral input terminal of the constant current drive circuit, the positive current output terminal and the negative current output terminal of the isolated constant current circuit are respectively used as the positive output terminal and the negative output terminal of the constant current drive circuit, the PWM dimming port of the isolated constant current circuit is the positive PWM terminal of the constant current drive circuit, and the GND foot of the chip SY5882 is the negative PWM terminal of the constant current drive circuit; the constant current drive circuit also includes a voltage auxiliary coil Nav, a first diode tube D1, the second capacitor C2, the first integrated circuit U3 and the third capacitor C3, wherein the voltage auxiliary coil Nav is a coil in the high-frequency isolation transformer arranged in the isolation constant current circuit, the second capacitor C2 is an electrolytic capacitor, the first integrated circuit U3 is a three-terminal voltage stabilizing circuit, having an input end, an output end and a negative electrode, one end of the voltage auxiliary coil Nav is connected to 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 to one end of the third capacitor C3 and the connection end thereof is the positive voltage end of the constant current drive 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 connection end thereof is the negative voltage end of the constant current drive circuit.

Claims

1. An infrared remote-controlled LED lamp that can be used in combination, characterized in that The infrared remote control LED lamp has a live wire input terminal, a neutral wire input terminal, a positive signal terminal and a negative signal terminal. The positive signal terminal and the negative signal terminal of the infrared remote control LED lamp are used to output a remote control signal. When one of the infrared remote control LED lamps is used alone, the live wire input terminal of the infrared remote control LED lamp is connected to the live wire of the mains, and the neutral wire input terminal is connected to the neutral wire of the mains. When the mains is connected, the infrared remote control can dim the infrared remote control LED lamp. At this time, if the infrared remote control LED lamp does not receive the infrared signal sent by the infrared remote control, the positive signal terminal and the negative signal terminal of the infrared remote control LED lamp are connected to the neutral wire of the mains. When m infrared remote-controlled 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-controlled LED lamps are all connected to the live wire of the mains, the neutral wire input ends of the m infrared remote-controlled LED lamps are all connected to the neutral wire of the mains, and the m infrared remote-controlled LED lamps are connected to the neutral wire of the mains. The positive signal ends of the LED lamps are connected together, and the negative signal ends of the m infrared remote-controlled LED lamps are connected together. When connected to the mains, the infrared remote controller can dim the m infrared remote-controlled LED lamps. At this time, if none of the m infrared remote-controlled LED lamps receive the infrared signal sent by the infrared remote controller, the positive signal end and the negative signal end of the m infrared remote-controlled LED lamps are kept at a high level. If one or more of the m infrared remote-controlled LED lamps receive the infrared signal sent by the infrared remote controller, the infrared remote-controlled LED lamps that receive the infrared signal set their luminous brightness and color temperature for dimming according to the infrared signal, and output a digital electrical signal corresponding to the infrared signal received between their positive output end and negative output end. Each of the m infrared remote-controlled LED lamps, regardless of whether it receives the infrared signal sent by the wireless remote controller, can obtain the digital electrical signal output between the positive signal end and the negative signal end of other infrared remote-controlled LED lamps through its positive signal end and negative signal end, and set its luminous brightness and color temperature for dimming based on the received digital electrical signal. The infrared remote-controlled LED lamp has an encoder for setting its number address. When m infrared remote-controlled LED lamps are used together, multiple infrared remote-controlled LED lamps with the same code address are used as a lamp unit. At this time, the infrared signal emitted by the infrared remote controller carries the code address. When an infrared remote-controlled LED lamp receives an infrared signal with a code address, it first compares its own code address with the code address carried by the infrared signal. If the two are consistent, the infrared remote-controlled LED lamp will set the corresponding luminous intensity and color temperature according to the received infrared signal for dimming, and output the corresponding digital electrical signal between its positive signal terminal and negative signal terminal. Otherwise, the current state remains unchanged. At this time, even if other infrared remote-controlled LED lamps do not receive infrared signals, they can obtain the corresponding infrared signal and code address based on the digital electrical signal output by the infrared remote-controlled LED lamp, and then compare the obtained code address with their own code address. If they are consistent, the corresponding luminous intensity and color temperature are set according to the infrared signal for dimming. If they are inconsistent, the current state remains unchanged. Thus, multiple infrared remote-controlled LED lamps in the same lamp unit are dimmed at the same time; The infrared remote control LED lamp comprises an LED lamp circuit capable of dimming by a PWM signal and a remote control receiving control circuit. The LED lamp circuit capable of dimming by a PWM signal is referred to as a dimming lamp circuit, and the remote control receiving control circuit is referred to as a remote control circuit. The dimming lamp circuit has a live wire input terminal, a neutral 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. The positive voltage terminal and the negative voltage terminal of the dimming lamp circuit are used to provide an isolated constant voltage as the working voltage of the remote control control circuit. The remote control control circuit has a first PWM output port, a second PWM output port, a positive signal terminal, a negative signal terminal, a positive pole and a negative pole. The first PWM output port and the second PWM port have a positive PWM terminal and a negative PWM terminal respectively. The working voltage is connected between the positive pole and the negative pole of the remote control circuit. The live wire input terminal of the dimming lamp circuit serves as the live wire connection terminal of the infrared remote control LED lamp, and the neutral wire input terminal of the dimming lamp circuit serves as the The neutral line connection end, the positive voltage end of the dimming lamp circuit is connected to the positive pole of the remote control circuit, the negative voltage end of the dimming lamp circuit is connected to the negative pole of the remote control circuit, the first PWM port of the dimming lamp circuit is connected to the first PWM output port of the remote control circuit, the second PWM port of the dimming lamp circuit is connected to the second PWM output port of the remote control circuit, 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 includes an infrared receiving circuit and a decoding output circuit, the infrared receiving circuit has a positive pole, a negative pole and an output end, the decoding output circuit has 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 to the positive pole of the decoding output circuit and its connection end is the positive pole of the remote control circuit;The negative electrode of the infrared receiving circuit is connected to the negative electrode of the decoding output circuit, and the connection end thereof is the negative electrode 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 to the input end of the decoding output circuit, and the connection end thereof is the positive signal end of the remote control circuit. The first PWM positive electrode of the decoding output circuit is the positive PWM end of the first PWM port of the remote control circuit, the first PWM negative electrode of the decoding output circuit is the negative PWM end of the first PWM port of the remote control circuit, the second PWM positive electrode of the decoding output circuit is the positive PWM end of the second PWM port of the remote control circuit, and the second PWM negative electrode 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 tube and a second NMOS tube. The infrared receiving head has 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 and the connection end is the positive electrode of the infrared receiving circuit. The other end of the first resistor and one end of the first capacitor are connected to the positive electrode of the infrared receiving head. The output end of the infrared receiving head is connected to the gate of the first NMOS tube. The drain of the first NMOS, the other end of the second resistor and the second NMOS tube are connected. The gate is connected, the drain of the second NMOS tube is connected to the other end of the third resistor and the connection end is the output end of 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 connection end is the cathode of the infrared receiving circuit; the decoding output circuit includes a fourth resistor, a fifth resistor, a first optical coupler, a second optical coupler, a decoding circuit and three dip switches, the first optical coupler and the second optical coupler have an anode, a cathode, a collector and an emitter respectively, and the decoding circuit adopts a remote control decoding unit packaged in SOP8 The microcontroller has a positive electrode, a negative electrode, a signal input terminal, a PWM1 terminal, a PWM2 terminal and three digital terminals. The three digital terminals of the remote control decoding microcontroller are respectively connected to one end of the three dial switches in a one-to-one correspondence. The negative electrode of the remote control decoding microcontroller is connected to the other end of the three dial switches and the connection end thereof is the negative electrode of the decoding output circuit. The signal input terminal of the remote control decoding microcontroller is the input end of the decoding output circuit. The positive electrode of the remote control decoding microcontroller, one end of the fourth resistor and one end of the fifth resistor are connected and the connection end thereof is the positive electrode of the decoding output circuit. The other end of the fourth resistor is connected to the anode of the first optical coupler. , the other end of the fifth resistor is connected to the anode of the second optical coupler, the cathode of the first optical coupler is connected to the PWM1 end of the remote control decoding microcontroller, the cathode of the second optical coupler is connected to the PWM2 end of the remote control decoding microcontroller, the collector of the first optical coupler is the first PWM positive electrode of the decoding output circuit; the emitter of the first optical coupler is the first PWM negative electrode of the decoding output circuit; the collector of the second optical coupler is the second PWM positive electrode of the decoding output circuit; the emitter of the second optical coupler is the second PWM negative electrode of the second PWM output end of the decoding output circuit; The dimming lamp circuit includes a constant current drive circuit, a first LED light-emitting circuit, a second LED light-emitting circuit and a color temperature control circuit. The constant current drive circuit has a live wire input terminal, a neutral 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 light-emitting circuit is a high color temperature LED light-emitting circuit, and the second LED light-emitting circuit is a low color temperature LED light-emitting circuit. Both the first LED light-emitting circuit and the second LED light-emitting circuit 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 drive circuit is the live wire input terminal of the dimming lamp circuit, the neutral wire input terminal of the constant current drive circuit is the neutral wire input terminal of the dimming lamp circuit, the positive PWM terminal of the constant current drive circuit is the positive PWM terminal of the first PWM port of the dimming lamp circuit, and the The negative PWM end of the constant current drive circuit is the negative PWM end of the first PWM port of the dimming lamp circuit, the positive voltage end of the constant current drive circuit is the positive voltage end of the dimming lamp circuit, the negative voltage end of the constant current drive 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 drive circuit is respectively connected to 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 to the first output end of the color temperature control circuit, the negative pole of the second LED light-emitting circuit is connected to the second output end of the color temperature control circuit, and the negative pole of the color temperature control circuit is connected to the negative output end of the constant current drive circuit.

2. The infrared remote-controlled LED lamp that can be used in combination according to claim 1, characterized in that The constant current drive circuit adopts an isolated constant current circuit scheme with a chip model SY5882 as the core control chip as the basic scheme, referred to as an isolated constant current circuit. The isolated constant current circuit has two AC input terminals connected to the mains, a positive current output terminal, a negative current output terminal and a PWM dimming port. The two AC input terminals of the isolated constant current circuit are respectively used as the live input terminal and the neutral input terminal of the constant current drive circuit. The positive current output terminal and the negative current output terminal of the isolated constant current circuit are respectively used as the positive output terminal and the negative output terminal of the constant current drive circuit. The PWM dimming port of the isolated constant current circuit is the positive PWM terminal of the constant current drive circuit, and the GND foot of the chip SY5882 is the negative PWM terminal of the constant current drive circuit; the constant current drive circuit also includes a voltage auxiliary coil, a first diode, and a second capacitor. , a first integrated circuit and a third capacitor, wherein the voltage auxiliary coil is a coil in a high-frequency isolation transformer arranged in the isolated constant current circuit, the second capacitor is an electrolytic capacitor, the first integrated circuit is a three-terminal voltage stabilizing circuit, having an input end, an output end and a negative electrode, one end of the voltage auxiliary coil is connected to the positive electrode of the first diode, the negative electrode of the first diode, the positive electrode of the second capacitor 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 to one end of the third capacitor and the connection end thereof is the positive voltage end of the constant current drive circuit, the other end of the voltage auxiliary coil, the negative electrode of the second capacitor, the negative electrode of the three-terminal voltage stabilizing circuit and the other end of the third capacitor are connected and the connection end thereof is the negative voltage end of the constant current drive circuit.

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