Question
Download Solution PDFWhat is the output of an LED driver?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFAn LED driver is a self-contained power supply that regulates the power required for an LED or array of LEDs.
- Constant current LED drivers are designed for a designated range of output voltages and a fixed output current (mA). LEDs that are rated to operate on a constant current driver require a designated supply of current usually specified in milliamps (mA) or amps (A).
- Constant voltage LED drivers are used for LEDs that require one stable voltage and have a current that is already regulated either via simple resistors or an internal constant current driver.
The output of LED is either constant voltage or constant current (DC).
LED drivers applications:
1) The change in forward voltage of LED with the change in temperature can cause the LED to burn out, this is also known as Thermal Runaway.
2) LED drivers prevents damage to LEDs as the constant current LED driver compensates for the changes in the forward voltage while delivering a constant current to the LED.
3) Thus LED drivers, convert higher voltage, alternating current to low voltage, direct current, and
4) It keeps the voltage or current flowing through the circuit at its rated level.
Last updated on Jun 11, 2025
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