Switching power supply
The switching power supply device addresses the complexity of multi-phase systems by using a multidimensional, fractal structure with reduced resonant capacitors and shared gate drive signals, achieving high power output and simplified control circuits.
JP7877812B2Active Publication Date: 2026-06-23GS YUASA CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- GS YUASA CORP
- Filing Date
- 2022-05-13
- Publication Date
- 2026-06-23
Smart Images
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Abstract
To provide a switching power supply device capable of achieving high power without increasing complementary gate drive signals.SOLUTION: A plurality of half-bridge LLC converters each having a resonance circuit including resonance capacitors Cr1 to Crn are provided as circuit elements 10. A resonance capacitor Crk (k is a natural number of 1 to n) of each circuit element 10 has one end connected in series with a resonance reactor Lr and a primary coil N of a transformer T and the other end connected with a resonance capacitor Crk of the other circuit element 10 so that Pk (Pk is an arbitrary natural number of 2 or more) circuit elements 10 configure a k-dimensional multiphase LLC converter having a phase difference of 360° / Pk. Secondary coils S of the transformers in the circuit elements 10 operating in the same phase are connected in series, and those series-connected secondary coils S are connected in a star connection.SELECTED DRAWING: Figure 6
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