Optimal compensating ramp generator for fixed frequency current mode DC-DC converters

摘要

Systems and methods for generating a compensating ramp for a DC-DC converter having fixed frequency current mode control architecture are adaptive to an input voltage of the converter and an output voltage of the converter, and are programmable based on an inductor of the converter. The systems and methods include receiving the input voltage and the output voltage of the converter and outputting, based on the input voltage and the output voltage, a voltage reference or a current reference. The systems and methods include generating a voltage ramp based on the voltage reference or the current reference. A conversion gain associated with converting the voltage ramp to a compensating ramp current is set based on a user input corresponding to an inductance value of the inductor.