Title:
POWER INVERTER CIRCUIT
Document Type and Number:
Japanese Patent JP2019057992
Kind Code:
A
Abstract:
To provide a power inverter circuit, in which soft switching is achieved and a steady loss is suppressed.SOLUTION: In a power inverter circuit, a plurality of series circuits each comprising diodes and FETs are provided between second high-potential wiring and low-potential wiring. A main reactor is connected to first high-potential wiring, a first sub reactor is connected between the main reactor and a first FET, and a second sub reactor is connected between the main reactor and a second FET. In a first operation, a first period when the first FET is turned on, a second period when both FETs are turned off, a third period when the second FET is turned on, and a fourth period when both FETs are turned off repeatedly appear. In the third period, current flowing through the first sub reactor is decreased to zero, and thereafter the first FET is turned on. In the first period, current flowing through the second sub reactor is decreased to zero, and thereafter the second FET is turned on.SELECTED DRAWING: Figure 4
Inventors:
TOGYO KEN
Application Number:
JP2017180579A
Publication Date:
April 11, 2019
Filing Date:
September 20, 2017
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H02M3/155
Domestic Patent References:
| JP2007159177A | 2007-06-21 | |||
| JP2008306786A | 2008-12-18 |
Foreign References:
| WO2017081971A1 | 2017-05-18 |
Attorney, Agent or Firm:
Kaiyu International Patent Office