Analysis of the best driving method for LED lamps

LED is the abbreviation of "Light Emitting Diode". Chinese is abbreviated as LED, because it has the advantages of energy saving, long life, high photoelectric efficiency and good seismic performance. It has been developed rapidly in recent years. In theory, the service life of LED is 100,000. About an hour, but in the actual application process, some LED lighting designers have insufficient understanding of LED driving power or excessive pursuit of cost, and ultimately shorten the life of LED lighting products, and many advantages are covered up.

In LED luminaires, there are many ways to connect. Among them, LED aluminum substrate, LED drive power line series and parallel principle has many, need to combine multiple LED arrays together, reliable LED connection method to improve the efficiency and life of LED lights play a big role.

LED driver power is the key to LED lamps. It is like the heart of our human beings. To produce high-quality LED lamps, we must learn to "let go", that is, no longer choose constant voltage to drive LED lamps.

Many designers who design LED luminaires use resistors, capacitors, and bucks, and then add a Zener diode to supply power to the LEDs. This way, the way to drive the LEDs is extremely flawed, not only inefficient, but also on the buck resistor. A large amount of electrical energy may even exceed the power consumed by the LED.

Constant current source driving is the best LED driving method. It uses constant current source to drive. It does not need to connect current limiting resistors in the output circuit. The current flowing through the LED is not affected by external power supply voltage changes, ambient temperature changes, and discrete LED parameters. The effect is to keep the current constant and give full play to the various excellent characteristics of the LED.

The use of constant current drive not only allows the LED luminaire to function properly, but also does not present a danger. At the same time, it can also make the life of LED lamps not damaged, it is a three-pronged!