Boost rectifier

• Main Authors: SADILEK, TOMAS, BARBOSA, PETER, JANG, YUNGTAEK, KUMAR, MISHA
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2022
• 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 boost rectifier (300) that operates with a single-phase input voltage (VAC) includes (i) an input stage (305) receiving the single-phase input voltage (YAC) and including first and second input filter capacitors (C1, C2), (ii) a switching converter stage (310) coupled to the input stage (305) and including a rectification circuit and an inductor circuit, series-connected first and second switches (S1, S2) providing a common terminal (N) therebetween, and a phase output capacitor (CR), (iii) an output stage (320) that transfers energy stored in the phase output capacitor (CR) to an output load, (iv) a decoupling stage (315) that provides high-impedance decoupling between the switching converter stage (310) and the output stage (320), and (v) a control circuit (350) configured to operate the first and second switches (S1, S2) according to an output signal of a non-linear compensation circuit (355) that combines a feedforward signal derived from both the input and output voltages of the boost rectifier (300) w