Title:
電力変換装置
Document Type and Number:
Japanese Patent JP7011544
Kind Code:
B2
Abstract:
In the present invention, a single-phase bridge circuit (bridge circuit) includes an upper arm device 30H (first power device) and a lower arm device 30L (second power device) that is connected in series thereto. A gate drive circuit 50L charges and discharges capacitance of a gate of the lower arm device 30L (second power device). A clamp circuit allows conduction between the gate of the lower arm device 30L and a source of the lower arm device 30L (second power device) if a voltage VgsL between the gate and the source of the lower arm device 30L is less than a prescribed value Vthc. The clamp circuit comprises a clamp switch SWc (switching element) and a clamp resistance circuit Rc (first resistor).
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Inventors:
Kamizuma Hiroshi
Takanori Ninomiya
Katsunori Matsui
Takae Shimada
Yuichi Mabuchi
Meguro light
Jun Narushima
Kosuke Aoki
Takanori Ninomiya
Katsunori Matsui
Takae Shimada
Yuichi Mabuchi
Meguro light
Jun Narushima
Kosuke Aoki
Application Number:
JP2018123032A
Publication Date:
February 10, 2022
Filing Date:
June 28, 2018
Export Citation:
Assignee:
Hitachi Industrial Products, Ltd.
International Classes:
H02M7/48; H02M1/08; H03K17/695
Domestic Patent References:
| JP2014075694A | ||||
| JP2013013051A |
Attorney, Agent or Firm:
Kaichi International Patent Office