Drive Circuit Directly Affects The Life of LED Public Lighting
The quality of LED driver power will directly affect the service life of Led Public lighting(CLASSIC), so how to do LED driver power is the primary task of LED power supply designers.
Nowadays, in order to save energy and save electricity, LED public lighting has been greatly promoted, but LED needs to be equipped with power supply, and its quality will directly affect the service life of LED. Therefore, how to make LED driver is the primary task of LED power supply designer. This article describes some of the issues with LED driver power and hopes to provide some help to engineers.
Speaking of LED drivers, it refers to digital drives and analog drives. Digital drive refers to digital circuit drive, including digital dimming control, RGB full color conversion and so on. Analog drive refers to analog circuit drive, including AC constant current switching power supply, DC constant current control circuit. The drive circuit is composed of electronic components, including semiconductor components, resistors, capacitors, inductors, and the like. These components have a lifetime that can cause failure or partial failure of the entire circuit. LEDs have a lifetime of 50,000-100,000 hours. It lasts for 50,000 hours and has a life span of nearly 6 years. The life of a switching power supply is difficult to reach six years. The warranty period for switching power supplies on the market is generally 2 to 3 years. The 6-year warranty power supply is military grade, and the price is 4-6 times that of the ordinary power supply. Lighting factories are difficult to accept. Therefore, the failure of LED public lighting is mainly the failure of the drive circuit.
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