One of the most important features of the Microchip LED drivers is the power control scheme. This scheme is not dependent on a particular power supply. Any generic AC/DC or DC/DC power supply that uses a voltage divider (RTOP and RBOTTOM) to set the output voltage will work. The Efficiency Optimizer improves power efficiency by injecting a current into the voltage divider of the external power supply to dynamically adjust the power supply’s output to the minimum voltage required by the LED strings.