CN204362371U - A kind of circuit structure of Infrared Remote Control LED lamp group - Google Patents

Abstract

The utility model discloses a circuit structure of an infrared remote control LED lamp group, which comprises an LED lamp group, an infrared receiving circuit, a circuit breaker, a memory, an LED driving circuit, a voltage stabilizing circuit and a switch circuit; the voltage stabilizing circuit is powered by a power supply and Stable voltage output voltage for the memory, infrared receiving circuit and circuit breaker to work, the infrared receiving circuit receives the infrared control signal and sends the control signal to the circuit breaker, and the circuit breaker stores the control signal in the memory through the I2C bus And read the command signal in the memory, the circuit breaker sends a PWM signal to the switch circuit according to the command signal sent by the memory to turn on the negative terminal of the LED lamp group; the PWM signal sent by the circuit breaker is also input into the LED drive circuit, And the LED driving circuit outputs a driving voltage to the positive terminal of the LED lamp group to light the LED lamp group.

Description

Circuit structure of an infrared remote control LED lamp group

technical field

The utility model relates to the technical field of LED lamps, in particular to a circuit structure of an infrared remote control LED lamp group.

Background technique

Since Edison invented the electric light, human beings got rid of the darkness and started the era of electric lighting. With the continuous development of society and the continuous improvement of people's living standards, the requirements for the lighting industry are also getting higher and higher, such as the need to further improve the brightness, energy saving, price, and lifespan of lighting products. In this process, a series of lighting products such as incandescent lamps, fluorescent lamps, and energy-saving lamps have appeared successively. As far as fluorescent lamps are concerned, they are divided into inductive and electronic types. Their lighting effect and energy saving are far superior to incandescent lamps, but their service life is not as good as that of incandescent lamps. Although energy-saving lamps have been heavily hyped in the environment of environmental protection and energy saving, they have not completely replaced incandescent lamps.

In recent years, many manufacturers have begun to apply LEDs to the lighting industry. LEDs have the advantages of long service life, low power consumption, and good lighting effects. However, the LED lighting products currently on the market are all of a single type, which is not conducive to promoting the popularization of LED. For example, a manual switch is required to control the LED to turn on or off, and the user must move a certain distance to operate, which greatly reduces the user's operating comfort and simplicity.

Utility model content

The technical problem to be solved by this utility model is to provide a circuit structure of an infrared remote control LED lamp group, which can control the switch of the LED lamp group through infrared remote control, and increase the convenience of the user.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a circuit structure of an infrared remote control LED lamp group, including an LED lamp group, an infrared receiving circuit, a circuit breaker, a memory, an LED driving circuit, a voltage stabilizing circuit and a switch circuit; the voltage stabilizing circuit is powered by a power supply and outputs a voltage for the memory, infrared receiving circuit and circuit breaker to work, the infrared receiving circuit receives an infrared control signal and sends a control signal to the circuit breaker, and the circuit breaker The control signal is stored in the memory through the I2C bus and the command signal in the memory is read, and the circuit breaker sends a PWM signal to the switch circuit according to the command signal sent by the memory to turn on the negative terminal of the LED lamp group; the circuit breaker sends out The PWM signal is also input into the LED driving circuit, and the LED driving circuit outputs a driving voltage to the positive terminal of the LED lamp group to light the LED lamp group.

In the above technical solution, the voltage stabilizing circuit includes a voltage regulator 78L05 and a voltage regulator MD7150, the voltage regulator 78L05 is used as a primary voltage regulator, and the voltage regulator MD7150 is used as a secondary voltage regulator, and the working voltage of 3.3V is controlled by the voltage regulator MD7150 output, voltage regulator 78L05 and output terminals of voltage regulator MD7150 are respectively provided with bypass capacitors.

In the above technical solution, the infrared receiving circuit includes an infrared receiving head IR3638.

In the above technical scheme, the circuit breaker adopts the AME8B053A chip, the memory adopts the AT24C02 chip, the SCL end and the SDA end of the circuit breaker are respectively connected with the SCL end and the SDA end of the memory; the SCL end and the SDA end of the memory are respectively connected in series with a resistor The working voltage of 3.3V is connected to the working voltage of the storage, connected to a bypass capacitor, and then grounded.

In the above technical solution, the LED drive circuit includes a drive IC42560, the PWM terminal of the drive IC receives the PWM signal from the output terminal of the circuit breaker, the VIN terminal of the drive IC is connected to the power supply, an inductor is connected between the VIN terminal and the SW terminal, and the SW terminal The output voltage is superimposed on the voltage of the inductor as the driving voltage for driving the LED lamp group to light.

In the above technical solution, a sampling resistor is connected in series at the input end of the LED lamp group, and the SENSE- terminal and the SENSE+ terminal of the driving IC are respectively electrically connected to both ends of the sampling resistor.

In the above technical solution, the switching circuit includes a field effect transistor KIA50N06, the negative end of the LED lamp group is connected to the D pole of the field effect transistor, the S pole is grounded, and the G pole is connected to the output end of the circuit breaker. the

The beneficial effect of the utility model is that: the infrared remote control is used to control the switch of the LED lamp group and the control of adjusting the brightness, etc., and the combination of the circuit breaker, the memory and the LED drive circuit makes the LED lamp group not fail due to insufficient voltage after power-on. There is a problem of partial light or all dim light.

Description of drawings

Fig. 1 is the overall circuit structure schematic diagram of the present utility model;

Fig. 2 is a schematic diagram of the circuit structure of the first half of Fig. 1;

FIG. 3 is a schematic diagram of the circuit structure of the rear panel of FIG. 1 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1, 2, and 3, a circuit structure of an infrared remote control LED lamp group includes an LED lamp group, an infrared receiving circuit, a circuit breaker, a memory, an LED drive circuit, a voltage stabilizing circuit and a switch circuit; The circuit is powered by a power supply and outputs a voltage for the operation of the memory, infrared receiving circuit and circuit breaker. The infrared receiving circuit receives the infrared control signal and sends a control signal to the circuit breaker. The circuit breaker passes the control signal through I2C The bus is stored in the memory and reads the command signal in the memory. The circuit breaker sends a PWM signal to the switch circuit according to the command signal sent by the memory to turn on the negative end of the LED lamp group; the PWM signal (ON/ OFF) is also input into the LED driving circuit, and the LED driving circuit outputs a driving voltage to the positive terminal of the LED lamp group to light up the LED lamp group. The infrared receiving circuit converts the infrared ray containing the control command signal into an electrical signal and sends it to the PB5 terminal of the circuit breaker. Send a read request with the SDA terminal, and the memory will transmit the command signal corresponding to the electrical signal to the circuit breaker along the SCL terminal and the SDA terminal according to the received electrical signal and the read request, and the circuit breaker will process the command signal to form PWM signal, and input the PEM signal to the PWM terminal of the LED drive circuit and the control terminal of the switch circuit (that is, the G pole of the FET). The power supply is a DC power supply from 9V to 28V.

Among them, the LED lamp group is composed of three groups of LED groups connected in parallel, and each group of LED groups is composed of 9 LED groups connected in series.

Wherein, the voltage stabilizing circuit includes a voltage regulator 78L05 and a voltage regulator MD7150, the voltage regulator 78L05 is used as a primary voltage regulator, and the voltage regulator MD7150 is used as a secondary voltage regulator, and the working voltage of 3.3V is output by the voltage regulator MD7150. The output terminals of the voltage regulator 78L05 and the voltage regulator MD7150 are respectively provided with bypass capacitors.

Wherein, the infrared receiving circuit includes an infrared receiving head IR3638, its pin 1 is used as output, pin 2 is grounded, pin 3 is connected in series with a resistor R2 and then connected to a working voltage of 3.3V, and pin 3 is connected to a bypass capacitor C5 and then grounded .

Wherein, the circuit breaker adopts the AME8B053A chip, the memory adopts the AT24C02 chip, and the SCL end and the SDA end of the circuit breaker are respectively connected with the SCL end and the SDA end of the memory; The working voltage of V is connected to the 3.3V working voltage of the storage, connected to a bypass capacitor and then grounded. The WP terminal, A0 terminal, A1 terminal, A2 terminal and GND terminal of the memory are grounded. A number of control command data are stored in the memory.

Wherein, the LED drive circuit includes a drive IC42560, the PWM terminal of the drive IC receives the PWM signal from the output terminal of the circuit breaker, the VIN terminal of the drive IC is connected to the power supply, an inductor L2 is connected between the VIN terminal and the SW terminal, and the output from the SW terminal The voltage superimposed on the inductor L2 is used as a driving voltage for driving the LED lamp group to light up. Wherein, a sampling resistor R13 is connected in series with the input terminal of the LED light group, and the SENSE- terminal and the SENSE+ terminal of the driving IC are respectively electrically connected to the two ends of the sampling resistor R13, and the two ends of the resistor R13 are only for voltage stabilization. Diode D36V1. VDD is connected to capacitor C13 and then grounded, and COMP is connected to capacitor C14 and then grounded. The LED driving circuit receives the PWM signal output by the circuit breaker, and the LED driving circuit adjusts the output of the SW terminal according to the PWM signal, so as to realize the adjustment of the output of the LED lamp group, such as brightness, etc.

Wherein, the switch circuit includes a field effect transistor KIA50N06, the negative terminal of the LED lamp group is connected to the D pole of the field effect transistor, the S pole is grounded, and the G pole is connected to the output terminal (ON/OFF) of the circuit breaker. The G terminal of the field effect tube controls the on-off of the negative terminal of the LED lamp group by receiving the PWM signal output by the circuit breaker, thereby controlling the extinguishment of the LED lamp group.

The above embodiments are only intended to illustrate rather than limit the utility model, so all equivalent changes or modifications made according to the method described in the scope of the patent application of the utility model are included in the scope of the patent application of the utility model.

Claims (7)

1. The circuit structure of an infrared remote control LED lamp group is characterized in that: comprise LED lamp group, infrared receiving circuit, circuit breaker, memory, LED driving circuit, voltage stabilizing circuit and switching circuit; Described voltage stabilizing circuit is powered by power supply And stabilize the output voltage for the memory, infrared receiving circuit and circuit breaker to work, the infrared receiving circuit receives the infrared control signal and sends the control signal to the circuit breaker, and the circuit breaker stores the control signal in the memory through the I2C bus and read the command signal in the memory, the circuit breaker sends a PWM signal to the switch circuit according to the command signal sent by the memory to turn on the negative terminal of the LED lamp group; the PWM signal sent by the circuit breaker is also input into the LED drive circuit , and the LED driving circuit outputs a driving voltage to the positive terminal of the LED lamp group to light the LED lamp group. 2. The circuit structure of an infrared remote control LED lamp group according to claim 1, characterized in that: the voltage stabilizing circuit includes a voltage regulator 78L05 and a voltage regulator MD7150, and the voltage regulator 78L05 is used as a primary voltage regulator, The voltage regulator MD7150 is used as a secondary regulator, and the 3.3V working voltage is output by the voltage regulator MD7150. The output terminals of the voltage regulator 78L05 and the voltage regulator MD7150 are respectively provided with bypass capacitors. 3. The circuit structure of an infrared remote control LED lamp group according to claim 2, wherein the infrared receiving circuit includes an infrared receiving head IR3638. 4. The circuit structure of an infrared remote control LED lamp group according to claim 2, characterized in that: the circuit breaker adopts an AME8B053A chip, the memory adopts an AT24C02 chip, and the SCL end and the SDA end of the circuit breaker are respectively connected to the SCL of the memory The SCL terminal and the SDA terminal of the memory are respectively connected in series with a resistor and then connected to the working voltage of 3.3V, and the working voltage connected to the storage is connected to a bypass capacitor and then grounded. 5. The circuit structure of an infrared remote control LED lamp group according to claim 1, wherein the LED drive circuit includes a drive IC42560, and the PWM terminal of the drive IC receives the PWM signal from the output terminal of the circuit breaker to drive The VIN terminal of the IC is connected to a power supply, and an inductor is connected between the VIN terminal and the SW terminal, and the voltage output from the SW terminal is superimposed on the inductor as a driving voltage for driving the LED lamp group to light. 6. The circuit structure of an infrared remote control LED lamp group according to claim 5, wherein a sampling resistor is connected in series at the input end of the LED lamp group, and the SENSE- and SENSE+ terminals of the driving IC are respectively Electrically connected to both ends of the sampling resistor. 7. The circuit structure of an infrared remote control LED lamp group according to claim 1, wherein the switch circuit includes a field effect transistor KIA50N06, the negative end of the LED lamp group is connected to the D pole of the field effect transistor, and The S pole is grounded, and the G pole is connected to the output end of the circuit breaker.