New control for charge pump buck converter [articol]

Abstract

The paper proposes a new voltage control methodology for the “Charge Pump Buck Converter”. During each commutation, the converter pumps a defined charge to the load circuit. The original circuit was improved and is able to control the output current both through the switching frequency and through the amount of electrical charge which is delivered to the load during each commutation. The control through the charge is very efficient for low rates between output voltage and input voltage. The main equations that can be used for the converter’s design are also presented in the paper.