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What are the different types of LED drivers?
There are two main types of drivers, those that use low voltage DC input power (generally 5-36VDC) and those that use high voltage AC input power (generally 90-277VAC). LED drivers that use high-voltage AC power are called Off-Line drivers, or AC LED drivers. In most applications using a low voltage DC input LED driver is recommended.
Why do I need a constant current LED driver?
In the beginning, we mentioned using a constant current LED driver because these power modules can vary their output voltages to match the series circuit. As LEDs heat up their forward voltages change, so it’s important to use a driver that can vary its output voltage, but keep the same output current.
When to use multiple drivers in a circuit?
This is usually recommended when you only have one driver in your circuit but if there are multiple drivers being dimmed from one potentiometer, the value of the potentiometer can be found from – KΩ/N – where K is the value of your potentiometer and N is the number of drivers you are using.
Why are LEDs used to power multiple LEDs?
LED drivers are used to power LEDs that have no internal current regulation. Connecting multiple LEDs to a constant current LED driver in parallel, runs the risk of reducing the life span of your LEDs.
As we can see above, LED drivers can be sorted into two types: constant current LED drivers and constant voltage LED drivers. Constant current LED drivers are designed for a designated range of output voltages and a fixed output current (mA).
Which is better led drive or power supply?
However, LEDs work most efficiently and safest with a “constant-current” drive. As a result, many new devices have been developed to provide this type of LED drive. Today, the terms “LED driver” and “LED power supply” are used interchangeably. Figure 1.
What kind of LED driver does moons use?
MOONS’ “CP” series LED Driver is a good example shown below. As for CP series, once the output current configured by MSSL200, the output current is fixed, and the output voltage is corresponding adjustable as specification shows, but the power will not exceed the maximum. Figure 2. MOONS’ MU100M105AQ_CP Label
Is it safe to use a constant voltage LED driver?
It is convenient and safe for customers to install the constant voltage LED drivers and its’ lighting project. In short, without the right LED driver, the LEDs would become too hot and unstable, causing malfunctions and poor performance.
What’s the minimum voltage for a series led?
The sum of three of these LED forward voltages is equal to 8.85V dc. So theoretically, 8.85V is the minimum required input voltage to drive this circuit. In the beginning, we mentioned using a constant current LED driver because these power modules can vary their output voltages to match the series circuit.
How is the output voltage of a luxdrive driver determined?
When using LuxDrive drivers, you determine the maximum output voltage by subtracting 2 volts from your input voltage. This is needed because the drivers need a 2 volt overhead to power the internal circuitry.