CN211457451U

CN211457451U - Remote control circuit for solar lamp

Info

Publication number: CN211457451U
Application number: CN202020467938.5U
Authority: CN
Inventors: 关锦明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-09-08
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses a remote control circuit is used to solar lamp, including control chip, the step-down circuit that is used for supplying power for control chip, infrared remote control receiving circuit, charactron and dimming control circuit, infrared remote control receiving circuit is used for receiving infrared remote control signal and sends for control chip, including infrared receiving head, diode and fourth resistance, the charactron is coupled with control chip, dimming control circuit includes emitting diode, first resistance, controls emitting diode luminance through control chip output PWM signal. The utility model provides a pair of remote control circuit is used to solar lamp is when receiving remote control infrared signal, and the lamp is bright to every ten minutes falls two percent power, falls to thirty fixed of hundredth. Compared with the products on the market, the battery is brighter in the first half night and saves the capacity of the battery in the second half night.

Description

Remote control circuit for solar lamp

Technical Field

The utility model relates to a lamps and lanterns technical field, especially a remote control circuit for solar lamp.

Background

With the development of photovoltaic technology, the utilization of solar energy has been widely applied to various fields, and at present, solar energy is converted into electric energy by a solar photovoltaic panel in the daytime and stored in a storage battery of a solar garden lamp or a solar street lamp which is powered by solar energy on the market, the storage battery supplies power for a constant current driving circuit at night, and the constant current driving circuit outputs constant current to light an LED light source.

However, the existing LED lamp controller can only control the on-off of the LED lamp according to the preset on-off time, and does not have the remote control function, so that the photovoltaic LED lamp has high brightness, and the electric energy of a battery is wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a remote control circuit is used to solar lamp possesses the bright lamp of infrared remote control function control, closes the lamp, PWM output signal's pulse width modulation LED illumination luminance to practice thrift the electric energy.

According to the utility model discloses a remote control circuit is used to solar lamp, including control chip, be used for step-down circuit, infrared remote control receiving circuit, charactron and the control circuit that adjusts luminance for the control chip power supply, infrared remote control receiving circuit is used for receiving infrared remote control signal and sends for control chip, including infrared receiving head, diode and fourth resistance, the charactron is coupled with control chip and is used for showing current electric quantity, the control circuit that adjusts luminance includes emitting diode, first resistance, controls emitting diode luminance through control chip output PWM signal.

Further, the step-down circuit includes the step-down chip, the VCC pin of the step-down chip inserts the battery power, and the GND pin ground of the step-down chip, the OUT pin of the step-down chip outputs the power supply after the step-down.

Furthermore, the VCC pin of the control chip is connected to the power supply, the GND pin of the control chip is grounded, and a first capacitor is connected in parallel between the VCC pin and the GND pin of the control chip.

On the basis of the scheme, a signal output pin of the infrared receiving head is respectively coupled with an anode of the diode and an IR pin of the control chip, a cathode of the diode is grounded, the fourth resistor is connected with the diode in parallel, a power supply pin of the infrared receiving head is coupled with a power supply, and a ground pin of the infrared receiving head is grounded.

On the basis of the scheme, the nixie tube is a 188 nixie tube, and 5 pins of the nixie tube are respectively coupled with corresponding 5 pins of the control chip.

Furthermore, the anode of the light emitting diode in the dimming control circuit is coupled to the power supply, the cathode of the light emitting diode is coupled to the first end of the first resistor, and the second end of the first resistor is coupled to the control chip.

Compared with the prior art, the utility model beneficial effect who has is:

1. when receiving the remote control infrared signal, the lamp is on, and the built-in program reduces the power by two percent every ten minutes to thirty percent for fixation. Compared with the products on the market, the battery is brighter in the first half night and saves the capacity of the battery in the second half night.

2. The circuit layout is simple, and the yield of mass production is improved by 5%.

3. The on-off time of the lamp can be set regularly.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a circuit diagram of a remote control circuit for a solar lamp according to the present invention.

Wherein, the reference numbers:

r1: a first resistor

R2: second resistance

R3: third resistance

R4: fourth resistor

R5: fifth resistor

D1: light emitting diode

D2: diode with a high-voltage source

C1: first capacitor

U1: control chip

U2: nixie tube

U3: step-down chip

P1: infrared receiving head

B: a battery power source.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The LED is a direct current power supply device, can be easily manufactured into a direct current lamp and is widely applied to a direct current system, such as a solar lamp product. The existing LED lamp controller can only control the on-off of the LED lamp according to the preset on-off time, and does not have the remote control function.

Referring to fig. 1, a remote control circuit for a solar lamp includes a control chip U1, a voltage step-down circuit for supplying power to the control chip U1, an infrared remote control receiving circuit, a nixie tube and a dimming control circuit, where the infrared remote control receiving circuit is used to receive an infrared remote control signal and send the infrared remote control signal to the control chip U1, and includes an infrared receiving head P1, a diode D2 and a fourth resistor R4, the nixie tube U2 is coupled to the control chip U1 for displaying current electric quantity, the dimming control circuit includes a light emitting diode D2 and a first resistor R1, and the control chip U1 outputs a PWM signal to control the brightness of the light emitting diode D2. The step-down circuit comprises a step-down chip U3, the model of the step-down chip U3 is 7530, a VCC pin of the step-down chip U3 is connected to a battery power supply B, a GND pin of the step-down chip U3 is grounded, and an OUT pin of the step-down chip U3 outputs a power supply after voltage reduction.

The control chip U1 adopts a new Tang N76E003AT20 singlechip, the VCC pin of the singlechip is connected to a power supply, the GND pin of the control chip U1 is grounded, and a first capacitor C1 is connected in parallel between the VCC pin of the control chip U1 and the GND pin. The first capacitor C1 is a decoupling capacitor, which can provide a stable power supply, and also can reduce the noise of the component coupled to the power supply terminal, and indirectly can reduce the influence of the noise of the component on other components.

The infrared receiving head P1 adopts LF1738 infrared receiving head, and its signal output pin is coupled with diode D2's positive pole, control chip U1's IR pin respectively, and diode D2's negative pole ground connection, fourth resistance R4 and diode D2 are parallelly connected, and infrared receiving head P1U 3's power pin is coupled with power supply, and infrared receiving head P1U 3's ground connection pin ground connection. The infrared remote control signal is received by the infrared receiving head P1.

The nixie tube is 188 for displaying the current electric quantity of the battery power supply B, and 5 pins of the nixie tube correspond to the control chip U1 respectively. The pins of 5 pins including the

pins

9, 10, 11, 12 and 13 are coupled, the voltage of the battery power supply B is detected through the control chip U1, and the electric quantity is displayed according to the voltage value.

The anode of the led D1 in the dimming control circuit is coupled to the power supply, the cathode of the led D1 is coupled to the first end of the first resistor R1, and the second end of the first resistor is coupled to the control chip U1.

The control chip U1 adopts an 8051 kernel Xintang N76E003AT20 singlechip, N76E003 is an enhanced 8-bit 8051 kernel microcontroller (1T working mode) with Flash, and an 18K embedded Flash storage area of the N76E003, commonly called APROM, is used for storing user program codes. The Flash memory area supports application programming (IAP) functions, i.e. the program code can be updated by on-chip firmware. The IAP function also provides a user self-configurable program area or data storage. When the single chip microcomputer detects signals of an infrared head, high and low frequency PWM signals are output to control a switch, the brightness adjusting function adjusts the brightness by outputting PWM with different widths to control the conduction degree of the MOS, and the specific duty ratio of the PWM is fixed through a built-in program to be output. If the power is reduced by 2% per minute, the duty ratio of PWM is reduced by 2%; the 30% power is that the duty ratio of PWM is fixed at 30%. The ground pin of the infrared receiving head P1 is grounded. The infrared remote control signal is received by the infrared receiving head P1 and is sent to the control chip U1, so that the operation of turning on and off the LED lamp is remotely controlled. When receiving the remote control infrared signal, the lamp is on, and the built-in program reduces the power by two percent every ten minutes to thirty percent for fixation. Compared with the products on the market, the battery is brighter in the first half night and saves the capacity of the battery in the second half night. The circuit layout is simple, and the yield of mass production is improved by 5%; the on-off time of the lamp can be set regularly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a remote control circuit is used to solar lamp, includes control chip, is used for the step-down circuit, infrared remote control receiving circuit, charactron and the control circuit that adjusts luminance for the control chip power supply, infrared remote control receiving circuit is used for receiving infrared remote control signal and sends for control chip, including infrared receiving head, diode and fourth resistance, the charactron is coupled with control chip and is used for showing current electric quantity, the control circuit that adjusts luminance includes emitting diode, first resistance, controls emitting diode luminance through control chip output PWM signal.

2. The remote control circuit for the solar energy lamp as claimed in claim 1, wherein: the voltage reduction circuit comprises a voltage reduction chip, a VCC pin of the voltage reduction chip is connected into a battery power supply, a GND pin of the voltage reduction chip is grounded, and an OUT pin of the voltage reduction chip outputs a power supply after voltage reduction.

3. The remote control circuit for the solar energy lamp as claimed in claim 1, wherein: the VCC pin of the control chip is connected into a power supply, the GND pin of the control chip is grounded, and a first capacitor is connected in parallel between the VCC pin of the control chip and the GND pin.

4. The remote control circuit for the solar energy lamp as claimed in claim 1, wherein: and a signal output pin of the infrared receiving head is respectively coupled with an anode of the diode and an IR pin of the control chip, a cathode of the diode is grounded, the fourth resistor is connected with the diode in parallel, a power supply pin of the infrared receiving head is coupled with a power supply, and a ground pin of the infrared receiving head is grounded.

5. The remote control circuit for the solar energy lamp as claimed in claim 1, wherein: the nixie tube is a 188 nixie tube, and 5 pins of the nixie tube are respectively coupled with corresponding 5 pins of the control chip.

6. The remote control circuit for the solar energy lamp as claimed in claim 1, wherein: the positive pole of the light emitting diode in the dimming control circuit is coupled with the power supply, the negative pole of the light emitting diode is coupled with the first end of the first resistor, and the second end of the first resistor is coupled with the control chip.