The gate drive current supply circuit of a power converter

Title:

The gate drive current supply circuit of a power converter

Document Type and Number:

Japanese Patent JP6146130

Kind Code:

B2

Abstract:

A power supply circuit for a gate driving circuit for driving semiconductor switching devices of a power converter that is configured to perform a DC to AC conversion. The power supply circuit includes a DC power supply including a plurality of serially-connected single DC power supplies, a flying capacitor type power conversion circuit including a plurality of flying capacitors connected in parallel to a plurality of the semiconductor switching devices, and a plurality of serially-connected circuits each having an insulating device, a middle part of the series-connected circuits being connected to a middle potential point of the flying capacitors, and to a fixed potential point of the DC power supply.

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Inventors:

Satoshi Takizawa

Application Number:

JP2013107081A

Publication Date:

June 14, 2017

Filing Date:

May 21, 2013

Export Citation:

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Assignee:

Fuji Electric Co., Ltd.

International Classes:

H02M7/483; H02M1/08

Domestic Patent References:

JP2006081232A
JP2008092651A
JP2001052940A

Foreign References:

WO2011109969A1

Attorney, Agent or Firm:

Akira Sakamoto

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