Title :
Very low voltage power conversion
Author :
Shepard, Marshall ; Williamson, Robert C.
Author_Institution :
Dept. of Eng., Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
A DC-DC converter for use with very low input voltages is presented. Operating with inputs as low as 0.3 VDC, the design also incorporates magnetic drive characteristics which significantly reduce the likelihood of core saturation. The circuit was developed to demonstrate the feasibility of efficient and economical electrical energy conversion from parallel arrays of solar cells operating at moderate to high power levels. While the circuit described here has a nominal 24 VDC output, a DC (or AC) output of almost any voltage is equally practical. Converter evaluation necessitated the development of a 500 A adjustable regulated low voltage DC power supply. The design of this supply is also considered
Keywords :
DC-DC power convertors; photovoltaic power systems; solar cell arrays; 0.3 V; 24 V; DC-DC converter; adjustable regulated LV DC power supply; economical electrical energy conversion; magnetic drive characteristics; parallel solar concentrator array; solar cells; very low voltage power conversion; Circuits; DC-DC power converters; Energy conversion; Low voltage; Magnetic cores; Photovoltaic cells; Power conversion; Power generation economics; Power system economics; Saturation magnetization;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921304
