Quantitative Feedback Contribution to Design of Voltage Regulator Modules

This work presents a new design method suitable for voltage regulator modules (VRM) requirements. The new method takes into account system uncertainty and it could be easily adapted to new requirements from the industry. The limitations of voltage and current modes to match the output impedance requirement are derived while the measurement of load current is found to be a valid approach to obtain the required voltage regulation characteristic. Simulation results prove the theoretical analysis and controller design.