Title :
Zero-voltage switching multi-output forward converter
Author :
Kim, Jae-Kuk ; Choi, Seong-Wook ; Moon, Gun-Woo
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
A new multi-output forward (MOFC) converter is proposed. It consists of four synchronous switches in secondary side for two outputs. The primary switches control the main output voltage and the synchronous switch in transformer secondary side controls the auxiliary output voltage. The main advantages of the proposed converter are that the secondary switch can achieve the zero voltage switching (ZVS) at entire load conditions and the secondary rectified voltage is a three level waveform, which can reduce the output filter. The operational principle, analysis and design considerations of the proposed converter are presented in this paper. The validity of this study is confirmed by the experimental results from dual outputs (12V-18.3A and 5V-6A) prototype for PC power supply.
Keywords :
power convertors; power filters; power transformers; zero voltage switching; PC power supply; auxiliary output voltage; multioutput forward converter; power filter; primary switches control; synchronous switches; three level waveform; transformer secondary side; zero voltage switching; Circuits; Energy consumption; Power supplies; Regulators; Semiconductor diodes; Switches; Switching converters; Switching loss; Voltage control; Zero voltage switching;
Conference_Titel :
Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International
Conference_Location :
Incheon
Print_ISBN :
978-1-4244-2490-0
Electronic_ISBN :
978-1-4244-2491-7
DOI :
10.1109/INTLEC.2009.5351805
