Switching power supply

Details Switching power supply Switching power supply

1997-05-23

1999-11-23

Berhane, Adolf Deneke

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, H02M 3335

Patent

active

059911662

ABSTRACT:
A switching power supply using SEPIC topology with an input and output circuit (12, 14). The input circuit (12) contains two inductance coils (D1.1) and (D1.2). To improve power supply and control properties, the second inductance coil (D1.2) is magnetically coupled to the first inductance coil (D1.1), in such a way that a value (IS), proportional to current (IS), measured in the second inductance coil (D1.2), can be supplied to a current regulator (KI) as an actual value. A computer unit (RG') contains an input (A) for a voltage difference (UF) from output voltage (UA) and reference voltage (USOLL), an input (B) for a sinusoidal input voltage (UE), and an additional input (C) for the peak value (UES) or a phased-shifted voltage (k.times.UES) of the input voltage as a direct voltage reading, whereby a signal

REFERENCES:
patent: 5115185 (1992-05-01), Fraidlin et al.
patent: 5764039 (1998-06-01), Choi et al.
patent: 5771168 (1998-06-01), Liao et al.
Dixon, Lloyd, "High Power Factor Preregulator Using the SEPIC Converter", Unitrode Corp. pp. 6-1--6-12 (May 1993).
Liao, Chiawci, "Akkus Laden, Ohne zu Heizen", Electronik 23, pp. 94-98 (1995).
Electronic Design, pp. 78-84 (May 30, 1995).
Sebastian, J. et al., "Using SEPIC Topology for Improving Power Factor in Distributed Power Supply Systems", EPE Journal, vol. 3, No. 2, Jun. 1993, pp. 107-115.
Wen-Jian Gu et al., "Topologies and Characteristics of DC-DC Converters Using Class E Resonant Switch", Electronics and Communications in Japan, Part 1, vol. 75, No. 1, 1992 pp. 82-96.

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