A Review of Power Factor Correction and Reduction in Total Harmonic Distortion for LED Drivers

The light-emitting diode (LED) driver is of great importance for efficient lighting. The main challenge for the LED driver is to reduce the THD and improve the PF of the circuit. Low power factor in LEDs makes it unsuitable for commercial use. Low power factor not only increases the losses but also is destructive for the electrical equipments. This paper deals with the technologies used for power factor correction and the requirement for using such technologies. It also covers the various problems related to power factor and the related works on power factor and THD improvement for LED driver.