Title :
Automatic current shaper with fast output regulation and soft-switching
Author :
Brkovic, Mirjana
Author_Institution :
California Inst. of Technol., Pasadena, CA
Abstract :
A new utility-to-DC, harmonic-free interface combines the functions of automatic input current shaping, fast output voltage regulation, and lossless, soft switching in a single power converter. This was made possible through internal energy storage and the discovery of new modes of operation, which together, effectively decoupled the input boost-like part of the Cuk converter from its buck-like output. Experimental results obtained on a 50 W-12 V prototype confirm the fast output regulation (30 kHz bandwidth for 100 kHz switching frequency) simultaneously with low-harmonic line current waveforms
Keywords :
DC-DC power convertors; PWM power convertors; energy storage; power system harmonics; switching circuits; voltage control; 100 kHz; 12 V; 30 kHz; 50 W; Cuk converter; DC/DC power converter; automatic input current shaping; decoupling; internal energy storage; line current harmonics; output voltage regulation; soft-switching; Capacitors; Circuits; Energy storage; Filters; Frequency; Inductors; Pulse width modulation; Voltage;
Conference_Titel :
Telecommunications Energy Conference, INTELEC '93. 15th International
Conference_Location :
Paris
Print_ISBN :
0-7803-1842-0
DOI :
10.1109/INTLEC.1993.388495
