Title :
A novel single-switch high conversion ratio DC-DC converter
Author :
Leu, Ching-Shan ; Wu, Shun-Yuan
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
By employing the coupled-inductor technique to the two cascaded boost converters, a single-switch high conversion ratio DC-DC converter is proposed. Unlike its predecessor, high voltage gain can be obtained without operating at extreme duty cycle. In addition to the operating principles and the analysis, a 100 kHz 36-75 V DC input, 400 V/240 W converter is implemented and tested. The 91.2% maximum efficiency can be achieved under high-line 85% full load operation condition.
Keywords :
DC-DC power convertors; inductors; cascaded boost converters; coupled inductor technique; frequency 100 kHz; high conversion ratio; high voltage gain; power 240 W; single-switch DC-DC converter; voltage 36 V to 75 V; voltage 400 V; Capacitors; Coupling circuits; DC-DC power converters; Diodes; High intensity discharge lamps; Inductors; Power conversion; Switches; Switching converters; Voltage; DC-DC; boost; high voltage gain ratio;
Conference_Titel :
Power Electronics and Drive Systems, 2009. PEDS 2009. International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-4166-2
Electronic_ISBN :
978-1-4244-4167-9
DOI :
10.1109/PEDS.2009.5385861
