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LED Driver-Important for Your LED Light Fixtures

 Power supplier for LED Lights driving is very important. Constant power supply could prolong the service life of LED fixtures. So does the LED Driver. There are many different ways to drive LEDs.

Driving a single LED, or a long string of LED light connected in series, has relatively few problems when the current is low (may be 20mA). High current LED lights are tougher to drive, requiring 350mA, 700mA, 1A or higher. Of course, a simple linear regulator could be used if power dissipation was not an issue or a simple resistor if current regulation is not critical. However, in most applications, an efficient switching regulator is used. A switching regulator is essential if the LED string voltage is higher than the supply voltage, or if the supply voltage has wide variation. But switching the LED lights means that electro-magnetic interference has to be considered.

Using shift registers is one way and they have their advantages. However, there are lots of ICs available that are specifically designed to drive LED displays and make life a lot easier for you. One of the most popular LED Driver ICs in the LED displays driver chips. These chips are designed to control 7-segment numeric LED displays of up to 8 digits, bar graph displays, or 8*8 LED dot matrix displays, which is what you will be using them for.

As mentioned above, different LED fixtures need different LED power driver.

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