Title:
電力変換装置
Document Type and Number:
Japanese Patent JP6755415
Kind Code:
B2
Abstract:
The power conversion device includes a multilevel boosting circuit and a smoothing capacitor for smoothing output voltage of the multilevel boosting circuit. The multilevel boosting circuit includes: a leg portion in which four semiconductor elements, i.e., a first diode, a second diode, a first switching element, and a second switching element are connected in series; and an intermediate capacitor connected between a connection point of the first diode and the second diode, and a connection point of the first switching element and the second switching element. When voltage of the smoothing capacitor becomes a reference voltage value or more, the control unit executes a protection mode to fix the first switching element and the second switching element in OFF states.
Inventors:
Shuta Ishikawa
Akihiko Iwata
Matsunaga tree
Matsuzaki Kimihiro
Akihiko Iwata
Matsunaga tree
Matsuzaki Kimihiro
Application Number:
JP2019560034A
Publication Date:
September 16, 2020
Filing Date:
August 21, 2018
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02M3/155
Domestic Patent References:
| JP201433553A | ||||
| JP2007288993A | ||||
| JP2012239324A |
Foreign References:
| WO2011092932A1 |
Attorney, Agent or Firm:
Patent Business Corporation Parumo Patent Office