Title:
DC-DC CONVERTER
Document Type and Number:
Japanese Patent JP3550529
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a converter that remarkably diminishes a switching loss.
SOLUTION: Two forward converters are formed by connecting IGBTS1 and IGBTS2, which are connected in series to an output of a DC power source E, to series circuits, which respectively consists of a diode D1 and a capacitor C1, and of IGBTS3 and a first high-frequency transformer T1, in parallel with IGBTS1, by connecting series circuits, which respectively consists of a diode D2 and a capacitor C2, and of a second high-frequency transformer T2 and IGBTS4, in parallel with IGBTS3, and by connecting diodes D3, D4 respectively between the contact of IGBTS3/the transformer T1 and the AC power source, and between the contact of the transformer T2/IGBTS4 and the AC power source. Outputs of the transformer T1, T2 are respectively rectified and connected to a smoothing reactor Ld having a tap. One terminal of the smoothing reactor is connected to a load, and another terminal is connected to the load through a reflux element D7.
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Inventors:
Satoshi Hamada
Application Number:
JP2000191702A
Publication Date:
August 04, 2004
Filing Date:
June 26, 2000
Export Citation:
Assignee:
Sansha Electric Co., Ltd.
International Classes:
H02M3/28; H02M3/335; (IPC1-7): H02M3/28; H02M3/335
Domestic Patent References:
| JP7337013A | ||||
| JP6217542A | ||||
| JP5268766A | ||||
| JP63024988U |
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