CONTROLLER FOR BUCK DC/DC CONVERTER WITH EFFECTIVE DECOUPLING

• Main Author: SAGONA, John Duward
• Format: Patent
• Language: English; French; German
• Published: 18.03.2020
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

A DC-DC power converter (10), a control component (40) of a DC-DC power converter (10), and a method of controlling a buck DC-DC power converter are provided. The method includes receiving at least one of a measured load current and a measured input voltage. The measured load current is a measurement of current that flows from the buck inductor (30) of a physical component (20) of the buck DC-DC power converter (10). The measured input voltage is a measurement of the DC link input voltage measured across a DC link of the physical component (20) of the buck DC-DC power converter (10). The method further includes generating a control signal to control a pulse width modulator (PWM) (54), wherein the control signal is based on at least one of the measured load current and the measured input voltage. The PWM (54) is configured to control at least one switch that is coupled to the buck inductor (30) to allow the buck inductor (30) to operate on a current flowing from the DC link only when the at least one switch is turned ON.