Methods to characterize open-loop dynamics of current-mode-controlled converters

The current-mode-controlled converters are current sources at open loop, and therefore, they cannot operate at a constant-current-type load required for measuring the transfer functions constituting the internal or unterminated set known as the G-parameters, which only describes the dynamics of the voltage-output converter. The paper investigates the methods by means of which the set can be determined by measurements and computationally. The methods are partly derived from the presently developed knowledge on characterizing the current-output converters.