CURRENT RESONANT TYPE DC VOLTAGE CONVERTER, CONTROL INTEGRATED CIRCUIT, AND CURRENT RESONANT TYPE DC VOLTAGE CONVERSION METHOD

Title:

CURRENT RESONANT TYPE DC VOLTAGE CONVERTER, CONTROL INTEGRATED CIRCUIT, AND CURRENT RESONANT TYPE DC VOLTAGE CONVERSION METHOD

Document Type and Number:

WIPO Patent Application WO/2015/137069

Kind Code:

A1

Abstract:

A current resonant type DC voltage converter comprises: a switching circuit (10) for generating an AC voltage from a DC input voltage (Vin); an LC resonant circuit (20) resonated by said AC voltage applied to a resonant capacitor (21) and a resonant coil (22); a transformer (30), the primary side of which is connected to the LC resonant circuit (20) in series; a parallel resonant inductance (Lm1) connected in parallel with the transformer (30); a rectifier circuit (40) for rectifying the current flowing through the secondary side of the transformer (30) to generate a DC output voltage (Vout); and a parallel resonant inductance adjustment circuit (50) for varying the parallel resonant inductance (Lm1).

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Inventors:

NISHIKAWA TAKEO (JP)
HYODO TAKASHI (JP)
YOKOI TOSHIYUKI (JP)

Application Number:

PCT/JP2015/054523

Publication Date:

September 17, 2015

Filing Date:

February 19, 2015

Export Citation:

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Assignee:

OMRON TATEISI ELECTRONICS CO (JP)

International Classes:

H02M3/28; H02M1/00

Foreign References:

JP2005065395A	2005-03-10
JP2010011625A	2010-01-14
JP2002354804A	2002-12-06

Other References: