Title:
CONDUCTOR CONNECTION STRUCTURE OF MULTILEVEL INVERTER
Document Type and Number:
Japanese Patent JP2018174654
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To shorten conductor distance in a multilevel inverter using DC capacitors DCP, DCN and flying capacitors FCP, FCN, and to reduce wiring inductance by laminating so that currents flow in the opposite direction to each other.SOLUTION: Flying capacitors FCP, FCN and DC capacitors DCP, DCN are arranged on the opposite sides, respectively, centering on semiconductor modules Ma-Md each of which constitutes a charging/discharging path of the flying capacitors FCP, FCN. Conductors 2, 3, 4, 5 for cathodes and anodes of the frying capacitors are laminated on each other. Conductors 6, 7 for an anode and a cathode of the DC capacitors are laminated on a conductor 8 for neutral-point potential. These extend linearly from a heat sink 1 in the opposite direction to each other.SELECTED DRAWING: Figure 4
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Inventors:
KODACHI KEIICHI
Application Number:
JP2017071382A
Publication Date:
November 08, 2018
Filing Date:
March 31, 2017
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD
International Classes:
H02M7/483; H02M7/48
Attorney, Agent or Firm:
Hiromichi Kobayashi
Tomioka Kiyoshi
Uzawa Hidehisa
Tomioka Kiyoshi
Uzawa Hidehisa