POWER CONVERSION DEVICE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20240146174A1
SERIAL NO

18280894

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A power conversion device according to the present invention comprises a plurality of class-D amplifiers disposed in parallel. An ON/OFF operation of a switching element of a lead leg and a delay leg of each class-D amplifier is carried out by a phase shift control, in which an auxiliary current is supplied to the class-D amplifier on the basis of a voltage difference between output terminals of an upper and lower class-D amplifiers. The auxiliary current supplements the electric current flowing between the drain and the source of the switching element. Generation of a displacement voltage dv/dt on the switching element, and a displacement current di/dt in modulation waves generated by the displacement voltage are prevented, thus preventing erroneous turn-on of the switching element in the OFF state of the other side of the leg.

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Patent Owner(s)

Patent OwnerAddress
KYOSAN ELECTRIC MFG CO LTD29-1 HEIANCHO 2-CHOME TSURUMI-KU YOKOHAMA-SHI KANAGAWA 230-0031

International Classification(s)

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  • 2022 Application Filing Year
  • H02M Class
  • 2691 Applications Filed
  • 1416 Patents Issued To-Date
  • 52.62 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kunitama, Hiroshi Yokohama-shi, JP 15 126
Miyazaki, Koichi Yokohama-shi, JP 54 819

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges13228601 - 10010020030040050060070080090010001100120013001400

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