Abstract:
The static and dynamic characteristics of
buck converters are well known for a long time. An easy
approximation results in a first order transfer function
in discontinuous conduction mode (DCM). Based on the
description in DCM in time domain the controller is
designed to compensate a load step using a nonlinear
algorithm for the calculation of the duty cycle. The
result is a controller with dead beat characteristic.
Because in theory the controller needs only one clock
cycle for compensation the controller is a member of the
one-cycle controllers.
