Integrated circuit of a switched mode power supply (SMPS) controller for determining operating characteristics from information about filter devices

摘要

An integrated circuit (10) for controlling a switching power converter, the integrated circuit (10) comprising a digital compensator (16) for controlling the switching of the switching power converter according to a frequency and phase response determined by one or more adjustable coefficients, characterized by a conversion block (18) for converting information specifying a value and / or a type of at least one device of an output filter of the switching power converter outside the integrated circuit (10) to determine the one or more adjustable coefficients, the conversion block (18) comprising: a look-up table (62) storing values for the one or more adjustable coefficients indexed by the information specifying the value or type of the at least one device; and control logic for retrieving one or more particular values from the look-up table (62) in accordance with the information specifying the value or type of the at least one device and adjusting the one or more adjustable coefficients according to the retrieved particular value (s).