A system includes a first device coupled with a link which transmits a signal having a repeating pattern, and a second device coupled with the link. The second device is to receive the signal, generate one or more delayed signals from the signal, determine a first duration of a first portion of the repeating pattern and a second duration of a second portion of the repeating pattern using the one or more delayed signals, and adjust a current duty cycle of the signal based on the first duration and the second duration.