This slide (page 19) analyzes the efficiency of nonideal boost converter. As you can see from the formula below, the efficiency of boost converter is dependent on duty cycle D and load resistance RL.
The smaller the duty cycle D and load resistance RL, the higher the efficiency.
I would like to understand intuitively how D and RL affect the efficiency. For duty cycle, the smaller duty cycle, the less time that current flows through inductor resistance. So the efficiency will increase.
Is this right?
However, how to explain the similar for load resistance, why smaller load resistance results in higher efficiency?