CN201238410Y - LED solar street lamp controller - Google Patents

Abstract

The utility model relates to a LED solar street lamp controller, it includes intelligent switch, voltage stabilizing circuit, drive circuit, power automatic control circuit, constant current control circuit, white light diode, voltage stabilizing circuit is connected to the direct current voltage Vcc and the ground connection of intelligent switch output, and voltage stabilizing circuit's output is connected to drive circuit, and power automatic control circuit is connected with drive circuit, and drive circuit's output and constant current control circuit are connected, and the positive direct current voltage Vcc with intelligent switch output of white light diode is connected, and the white light diode negative pole is connected with constant current control circuit. The utility model has the advantages of simple and effective circuit, stable white light, easy processing, production, popularization and use and the like.

Description

LED solar street light controller

technical field

The utility model relates to road lighting equipment, in particular to a white light LED solar street lamp controller.

Background technique

At present, there are many kinds of solar street lamps with single power supply and rare earth energy-saving light source. Although solar energy-saving rare earth light source has obvious advantages of low energy consumption and long life compared with incandescent light source, it is still insufficient compared with the new light source white light diode. In addition, although the solar battery is energy-saving and environmentally friendly, it is greatly affected by the weather, so it has to be compensated by increasing the area of the solar panel. As a result, the cost increases, and the brightness is unstable or even not bright due to insufficient power storage. The problem is not conducive to the promotion and use.

Utility model content

Aiming at the above-mentioned defects of the prior art, the utility model provides an LED solar street lamp controller in a dual power supply mode with reasonable design, low power consumption, good energy-saving effect, long service life and stable brightness of the street lamp.

In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

A LED solar street lamp controller, preferably, it includes an intelligent switcher, a voltage stabilizing circuit, a drive circuit, a power automatic control circuit, a constant current control control circuit, a white light diode, and the voltage stabilizing circuit is connected to the output of the intelligent switcher DC voltage Vcc and ground, the output terminal of the voltage stabilizing circuit is connected to the driving circuit, the power automatic control circuit is connected to the driving circuit, the output terminal of the driving circuit is connected to the constant current control control circuit, and the positive pole of the white light diode is connected to the DC voltage output by the intelligent switcher Vcc is connected, and the cathode of the white light diode is connected to the constant current control circuit.

Preferably, the drive circuit is composed of resistors Rb, Rc, Re, capacitor Ce, and a transistor T. One end of Rc is connected to the output end of the voltage stabilizing circuit, and the other end is connected to the collector of the triode T; one end of Rb is connected to the output terminal of the voltage stabilizing circuit. The output end is connected, and the other end is connected to the base of T and the power automatic control circuit; the emitter of the triode T is connected to Rc and the capacitor Ce as the output of the drive circuit; after Rc and Ce are connected in parallel, one end is grounded, and the other end is connected to the emitter of T as the output of the drive circuit.

Preferably, the power automatic control circuit is composed of at least two diodes connected in series, the anode of the diode connected in series with the resistor Rb of the drive circuit and the base of the triode T, and the cathode connected to the ground.

From the above technical solutions, it can be seen that the street lamp circuit designed by combining high-efficiency white light diodes and making full use of solar energy as the power supply mode has the advantages of simple and effective circuit, stable white light, energy saving and environmental protection, good reliability, high efficiency, long life and low cost. Low power consumption, low power consumption, easy processing, production and popularization.

Description of drawings

Fig. 1 is the functional block diagram of the utility model LED solar street light controller;

Fig. 2 is a schematic block diagram of the utility model circuit;

Fig. 3 is a circuit diagram of the utility model.

Detailed ways

The utility model will be described in further detail below in conjunction with specific embodiments.

Referring to shown in Fig. 1, the utility model is made up of solar cell, main power supply, backup power supply, intelligent switcher, intelligent controller, white light source. The solar battery is directly connected to the main power supply to charge the main power supply; the main power supply is a high-energy storage battery, the output of the main power supply is connected to the intelligent switcher, the intelligent switcher selects the output, and the sampling value of the main power supply is connected to the intelligent controller for intelligent control The device monitors the energy stored in the existing power supply; the control output of the intelligent controller is connected to the control terminal of the intelligent switcher, which can control the start-up, shutdown, and switching functions of the intelligent switcher; the backup power supply is the input of 220 or 380 AC, and the corresponding output after conversion The direct current is connected to the intelligent switcher for the intelligent switcher to select the output; the output of the intelligent switcher is directly connected to the white light source to supply the required direct current to the white light source.

The solar battery mainly completes the conversion of solar energy into certain required electric energy under the irradiation of sunlight, and charges the main power supply; the main power supply stores the electric energy supplied by the solar battery; the backup power supply is 220V or 380V alternating current for street lamps , after rectification, filtering, and voltage stabilization, the required direct current is output as the backup power supply for street lamps, and only when the energy of the main power supply is insufficient, it can replace the main power supply; the intelligent switcher mainly completes the output switching between the main power supply and the backup power supply. When energy is needed, if the energy of the main power supply is insufficient, it will switch to the backup power supply under the control of the intelligent controller, otherwise it will be powered by the main power supply; the intelligent controller will automatically monitor the energy function of the main power supply, timing control function and day and night detection With the combination of functions, the white light source can emit light only when the instruction to start the intelligent switcher is issued during the night time period. When the intelligent controller detects that the main power supply is insufficient, it sends an instruction to the intelligent switcher to switch to the backup power supply, and the white light source Powered by backup power, otherwise main power.

As shown in FIG. 2 , the white light source is composed of a voltage stabilizing circuit 1 , a driving circuit 2 , an automatic power control circuit 3 , a white light diode 4 , and a constant current control circuit 5 . The voltage stabilizing circuit 1 is directly connected to the DC voltage Vcc output by the intelligent switch and the ground GND, the output of the voltage stabilizing circuit 1 is connected to the driving circuit 2, the automatic power control circuit 3 is directly connected to the driving circuit 2, and the output of the driving circuit 2 is connected to the constant current control The circuit 5 is connected, the anode of the white light diode 4 is connected with the DC voltage Vcc output by the intelligent switcher, and the white light diode 4 is responsible for connecting with the constant current control circuit 5 .

Referring again to Fig. 3, the voltage stabilizing circuit 1 is composed of a resistor Ra and a voltage stabilizing module W; one end of Ra is connected to Vcc, and the other end is connected to W as an output; one end of W is connected to ground GND, and the other end is connected to Ra as an output; The drive circuit 2 is composed of resistors Rb, Rc, Re, capacitor Ce, and a transistor T; one end of Rc is connected to the output of the voltage stabilizing circuit 1, and the other end is connected to the collector of the triode T; one end of Rb is connected to the output of the voltage stabilizing circuit 1 The other end is connected to the base of the triode T and the power automatic control circuit 3; the emitter of the triode T is connected to the resistor Re and the capacitor Ce as the input of the constant current control circuit 5; after Re and Ce are connected in parallel, one end is connected to GND, and the other end It is connected with the emitter of the triode T as the input of the constant current control circuit 5;

The automatic power control circuit 3 is composed of at least two diodes connected in series, the anode of the series connected diode is connected to the resistor Rb and the base of the triode T, and the cathode is connected to GND;

The white light diode 4 (LED1) consists of at least two white light diodes in series to form a group of white light diodes. After the white light diodes are connected in series, the anode is connected to Vcc, and the cathode is connected to the collector of T1. The latter can be connected in parallel with more than two white light diode groups. , forming a more powerful white light source;

The constant current control circuit 5 is composed of a triode T1 and a resistor R1, the base of the triode T1 is connected to the emitter of the triode T, the collector of the triode T1 is connected to the cathode of the white light diode LED1, and the emitter of the triode T1 is connected to the resistor R1 The other end of the resistor R1 is connected to the ground GND, which is also combined with a white light diode, and more than two groups of parallel connections can realize a white light source with higher power.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (3)

1, a kind of LED solar street lamp controller, it is characterized in that: it comprises intelligent switch, voltage stabilizing circuit, drive circuit, the power automatic control circuit, constant current control control circuit, white light-emitting diodes, described voltage stabilizing circuit is connected to the direct voltage Vcc and the ground connection of intelligent switch output, the output of voltage stabilizing circuit is connected to drive circuit, the power automatic control circuit is connected with drive circuit, the output of drive circuit is connected with constant current control control circuit, the direct voltage Vcc of the anodal and intelligent switch output of white light-emitting diodes is connected, and the white light-emitting diodes negative pole is connected with constant-current control circuit.

2, LED solar street lamp controller according to claim 1, it is characterized in that: described drive circuit is made up of resistance R b, Rc, Re, capacitor C e, triode T, Rc one end is connected with the output of voltage stabilizing circuit, and the other end is connected with the collector electrode of triode T; Rb one end is connected with the output of voltage stabilizing circuit, and the other end is connected with base stage, the power automatic control circuit of T; Triode T emitter links to each other as the output of drive circuit with Rc, capacitor C e; Rc and an end ground connection after Ce is in parallel, the other end is connected the output as drive circuit with the emitter of T.

3, LED solar street lamp controller according to claim 2, it is characterized in that: described power automatic control circuit is composed in series by at least two diodes, the positive pole of series connection back diode is connected minus earth with the resistance R b of drive circuit and the base stage of triode T.

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