  This paper investigates a new method to model and control variable-frequency
power converters in a switching-synchronized sampled-state space for
cycle-by-cycle digital control. There are a number of significant benefits in
comparison to other methods including fast dynamic performance together with
ease of design and implementation. Theoretical results are presented and
verified through hardware, and simulations of a current-mode buck converter
with constant on-time and a current-mode boost converter with constant
off-time. Dynamic voltage scaling for microprocessors and LiDAR are among the
applications that can benefit.
