Direct-current power supply and direct-current power supply LED streetlamp system
A DC power supply and circuit technology, applied in the field of circuits, can solve problems such as reducing the life of LED lamps, and achieve the effect of reducing circuit costs and improving the life of LED lamps.
Inactive Publication Date: 2016-08-10
STATE GRID BEIJING ELECTRIC POWER +1
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- Application Information
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Problems solved by technology
[0006] The main purpose of the present invention is to provide a DC power supply and a DC-powered LED street lamp system to solve the problem in the related art that using an AC-powered LED street lamp system will reduce the life of the LED lamp
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[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0027] It should be noted that the terms "first" and "second" in ...
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The invention discloses a direct-current power supply and a direct-current power supply LED streetlamp system. The direct-current power supply comprises a single-phase rectifying circuit, a power supply output distribution circuit and a plurality of direct-current output ports. The first end of the single-phase rectifying circuit is connected in a single-phase sine power supply, and the single-phase rectifying circuit is used for converting the single-phase sine power supply into a first direct-current power supply. The first end of the power supply output distribution circuit is connected with the second end of the single-phase rectifying circuit. The power supply output distribution circuit is used for reducing the voltage of the first direct-current power supply to obtain a second direct-current power supply. The direct-current output ports are connected with the second end of the power supply output distribution circuit and used for outputting the second direct-current power supply. The direct-current output ports are connected in parallel. By means of the direct-current power supply, the problem that in the prior art, because an alternating-current power supply LED streetlamp system is adopted, the service life of LED lamps can be shortened is solved.
Description
technical field [0001] The invention relates to the field of circuits, in particular to a DC power supply and a DC powered LED street lamp system. Background technique [0002] Since light emitting diode (Light Emitting Diode, LED for short) lamps have the advantages of long life, low power consumption, and high brightness, they are widely used as light sources in street lamp systems. The LED light source is driven by low voltage and DC. The working voltage of a single LED light source is low. In actual use, multiple LED light sources are usually connected in series to form an array. The alternating current is converted into a low-voltage direct current to be connected to each group of LED arrays. For different purposes, the operating voltage parameters of the LED array are also different, and different drive power modules must be equipped to convert the 220V alternating current into the operating voltage of the LED array. Each group of LED arrays needs to integrate a driv...
Claims
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IPC IPC(8): F21V23/00H05B33/08H02M7/04H02J3/18F21W131/103F21Y115/10H05B44/00
CPCH02J3/1821H02M7/04F21V23/023F21W2131/103H05B45/40Y02E40/30Y02B20/72
Inventor 韩帅丁屹峰迟忠君刘鹏段玉林
Owner STATE GRID BEIJING ELECTRIC POWER