CN210444532U

CN210444532U - Street lamp driving system

Info

Publication number: CN210444532U
Application number: CN201920864418.5U
Authority: CN
Inventors: 罗大钊
Original assignee: Shenzhen Ruizhanxin Electronic Co Ltd
Current assignee: Shenzhen Ruizhanxin Electronic Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-05-01
Anticipated expiration: 2029-06-10

Abstract

The utility model relates to a street lamp actuating system. The street lamp driving system is respectively connected with a mains supply and an LED array and comprises a filter, a rectifier, a multi-path DC/DC converter, a feedback circuit and a controller, wherein the mains supply, the filter, the rectifier, the multi-path DC/DC converter and the LED array are sequentially connected, the feedback circuit is connected with the LED array, and the feedback circuit is connected with the multi-path DC/DC converter through a control circuit. The LED lamp controller can realize independent control of each LED lamp in the LED array, and improves the working efficiency of the LED array.

Description

Street lamp driving system

Technical Field

The utility model relates to a street lamp technical field especially relates to a street lamp actuating system.

Background

The LED lamp is also called a semiconductor illuminating lamp, takes a light emitting diode as a light source, is a solid cold light source, and has the advantages of environmental protection, no pollution, low power consumption and the like, and is widely applied to the field of street lamps.

Generally, an LED array lamp source is adopted in an LED lamp source used in the field of street lamps, and due to differences of LED lamps in the LED array lamp source in a production process, the voltages required for normal operation of the LED lamps may also differ, whereas a conventional street lamp driving system can only provide a uniform power supply voltage for the LED array, and cannot realize individual driving control of the LED lamps in the LED array.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can realize carrying out the street lamp actuating system of independent control to each LED lamp in the LED array.

A street lamp driving system is respectively connected with a mains supply and an LED array and comprises a filter, a rectifier, a multi-path DC/DC converter, a feedback circuit and a controller, wherein the mains supply, the filter, the rectifier, the multi-path DC/DC converter and the LED array are sequentially connected, the feedback circuit is connected with the LED array, and the feedback circuit is connected with the multi-path DC/DC converter through the controller.

The street lamp driving system is respectively connected with a mains supply and an LED array and comprises a filter, a rectifier, a multi-path DC/DC converter, a feedback circuit and a controller, wherein the mains supply, the filter, the rectifier, the multi-path DC/DC converter and the LED array are sequentially connected, the feedback circuit is connected with the LED array, and the feedback circuit is connected with the multi-path DC/DC converter through the controller. The LED lamp controller can realize independent control of each LED lamp in the LED array, and improves the working efficiency of the LED array.

In one embodiment, the street lamp driving system further includes an optical coupler, and the optical coupler is respectively connected to the feedback circuit and the controller.

In one embodiment, the street lamp driving system further comprises a photosensitive detection circuit, and the photosensitive detection circuit is connected with the controller.

In one embodiment, the street lamp driving system further comprises a temperature detection circuit, and the temperature detection circuit is connected with the controller.

In one embodiment, the street lamp driving system further comprises an alarm circuit, and the alarm circuit is connected with the controller and used for receiving an alarm signal sent by the controller and sending an alarm prompt.

In one embodiment, the street lamp driving system further comprises a fault display circuit, the fault display circuit is connected with the controller, and the fault display circuit is used for receiving a fault signal sent by the controller to display faults.

Drawings

Fig. 1 is a schematic structural diagram of a street lamp driving system in an embodiment;

FIG. 2 is a schematic structural diagram of another embodiment of a street lamp driving system;

FIG. 3 is a schematic structural diagram of a street lamp driving system according to yet another embodiment;

fig. 4 is a schematic structural diagram of a street lamp driving system in yet another embodiment.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, the present embodiment provides a street lamp driving system 100, which is respectively connected to a mains power supply 200 and an LED array 300, and includes a filter 110, a rectifier 120, a multi-path DC/DC converter 130, a feedback circuit 140 and a controller 150, wherein the mains power supply 200, the filter 110, the rectifier 120, the multi-path DC/DC converter 130 and the LED array 300 are sequentially connected, the feedback circuit 140 is connected to the LED array 300, and the feedback circuit 140 is connected to the multi-path DC/DC converter 130 through the controller 150.

It should be noted that the working principle of the street lamp driving system provided by this embodiment is as follows: the high-voltage alternating current output by the mains supply 200 passes through the filter 110 to filter out noise waves in the mains supply 200, the rectifier 120 rectifies the high-voltage alternating current into direct-current voltage, the multiple paths of direct-current voltage are output through the multiple paths of DC/DC converters 130 to supply power to each LED lamp in the LED array, meanwhile, the feedback circuit 140 detects the voltage of each LED lamp in the LED array 300 in real time and sends the voltage to the controller 150, the controller 150 compares the voltage of each LED lamp with the set voltage of each LED lamp and outputs a PWM (pulse width modulation) signal, and the multiple paths of DC/DC converters 130 receive the PWM signal to adjust the power supply voltage output to each LED lamp in the LED array 300, so that the LED lamps in the LED array 300 are controlled independently, and the working efficiency of the LED array 300 is improved.

In the present embodiment, the filter 110 includes a capacitor and an inductor; the rectifier 120 may employ a bridge circuit formed by four diodes; the multi-path DC/DC converter 130 may be a multi-path BUCK type converter, where the BUCK type converter includes a switching tube, and the controller 150 outputs a PWM pulse modulation signal to control the switching of the switching tube, so that the BUCK type converter modulates and outputs different DC voltages to supply power to the LED array 300; feedback circuit 140 may employ a detection circuit commonly used by those skilled in the art; the controller 150 may be a single chip microcomputer.

The street lamp driving system 100 is connected to the commercial power supply 200 and the LED array 300, respectively, and includes a filter 110, a rectifier 120, a multi-path DC/DC converter 130, a feedback circuit 140 and a controller 150, the commercial power supply 200, the filter 110, the rectifier 120, the multi-path DC/DC converter 130 and the LED array 300 are connected in sequence, the feedback circuit 140 is connected to the LED array 300, and the feedback circuit 140 is connected to the multi-path DC/DC converter 130 through the controller 150. The individual control of each LED lamp in the LED array 300 can be realized, and the working efficiency of the LED array 300 is improved.

In one embodiment, referring to fig. 2, the street lamp driving system 100 further includes an optical coupler 160, and the optical coupler 160 is respectively connected to the feedback circuit 140 and the controller 150.

In this embodiment, the street lamp driving system 100 further includes an optical coupler 160, and the optical coupler 160 can realize electrical isolation between the feedback circuit 140 and the controller 150, so as to ensure stable operation of the driving system.

In one embodiment, referring to fig. 3, the street lamp driving system 100 further includes a photosensitive detection circuit 170, and the photosensitive detection circuit 170 is connected to the controller 150.

In this embodiment, the street lamp driving system 100 further includes a photosensitive detection circuit 170, the photosensitive detection circuit 170 includes a photosensitive sensor, the photosensitive detection circuit 170 is configured to detect an illumination intensity of an external environment, and the controller 150 is configured to adjust a power supply voltage of the LED array 300 according to the illumination intensity of the external environment. Specifically, when the external environment is in the evening, the external illumination intensity detected by the photosensitive detection circuit 170 is weak, and the controller 150 increases the power supply voltage of the LED array 300 through the multi-path DC/DC converter 130; when the external environment is in the daytime, the external illumination intensity detected by the photosensitive detection circuit 170 is strong, and the controller 150 reduces or turns off the power supply voltage of the LED array 300 through the multi-path DC/DC converter 130.

In one embodiment, referring to fig. 3, the street lamp driving system 100 further includes a temperature detection circuit 180, and the temperature detection circuit 180 is connected to the controller 150.

In this embodiment, the street lamp driving system 100 further includes a temperature detection circuit 180, and the temperature detection circuit 160 may be disposed in a housing of the street lamp for collecting a temperature in the housing. Specifically, the temperature detection circuit 180 may be a temperature sensor.

In one embodiment, referring to fig. 4, the street lamp driving system 100 further includes an alarm circuit 190, and the alarm circuit 190 is connected to the controller 150 for receiving an alarm signal sent from the controller 150 and sending an alarm prompt.

In this embodiment, the street lamp driving system 100 further includes an alarm circuit 190, and when the voltage of a part of the LED lamps in the LED array 300 detected by the feedback circuit 140 received by the controller 150 is 0, that is, when a short circuit occurs in a part of the LED lamps in the LED array 300, an alarm signal sent by the controller 150 controls the alarm circuit 190 to give an alarm prompt to remind an operator to repair the street lamp. Specifically, the alarm circuit 190 may adopt an alarm manner such as a voice alarm, a buzzer or an LED flashing alarm.

In one embodiment, referring to fig. 4, the street lamp driving system 100 further includes a fault display circuit 192, the fault display circuit 192 is connected to the controller 150, and the fault display circuit 192 is configured to receive a fault signal sent by the controller 150 for fault display.

In this embodiment, the street lamp driving system 100 further includes a fault display circuit 192, and when the controller 150 controls the alarm circuit 190 to give an alarm, the fault display circuit 192 is controlled to display a fault by sending a fault signal, so as to remind an operator to perform maintenance.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A street lamp driving system is connected with a mains supply and an LED array respectively and is characterized by comprising a filter, a rectifier, a multi-path DC/DC converter, a feedback circuit and a controller, wherein the mains supply, the filter, the rectifier, the multi-path DC/DC converter and the LED array are connected in sequence, the feedback circuit is connected with the LED array, and the feedback circuit is connected with the multi-path DC/DC converter through the controller.

2. The streetlamp driving system according to claim 1, further comprising an optical coupler, wherein the optical coupler is respectively connected to the feedback circuit and the controller.

3. The streetlamp driving system according to claim 1, further comprising a photosensitive detection circuit, wherein the photosensitive detection circuit is connected to the controller.

4. The streetlamp driving system according to claim 1, further comprising a temperature detection circuit connected to the controller.

5. The street lamp driving system according to claim 1, further comprising an alarm circuit, wherein the alarm circuit is connected to the controller, and is configured to receive an alarm signal from the controller and send an alarm prompt.

6. The streetlamp driving system according to claim 1, further comprising a fault display circuit, wherein the fault display circuit is connected to the controller, and is configured to receive a fault signal sent by the controller to perform fault display.