Title:
バッテリーモジュール内のノイズフィルタ
Document Type and Number:
Japanese Patent JP7259067
Kind Code:
B2
Abstract:
A circuit is provided, including first and second input terminals (110, 112) an output terminal (114), a DC-to-DC converter (120), and a trifilar choke (130) including a first inductor (140) connected between the first input terminal (110) and a first input terminal (150) of the converter (120), a second inductor (142) connected between the second input terminal (112) and a second input terminal (152) of the converter (120), and a third inductor (144) connected between the output terminal (114) and an output terminal (154) of the converter (120). The converter (120) is configured to convert a first voltage (V1) received at its first and second input terminals (150, 152) to a second voltage (V2) at its output terminal (154) higher than the first voltage (V1). The first, second and third inductors (140, 142, 144) are wound on a same core, mutually coupled and arranged such that currents common to the first and second inductors (140, 142) and currents common to the second and third inductors (142, 144) are blocked or attenuated. A current-limiting device, battery modules and a method of noise filtering are also provided.
Inventors:
Melin, Mats
Application Number:
JP2021547863A
Publication Date:
April 17, 2023
Filing Date:
February 22, 2019
Export Citation:
Assignee:
Polarium Energy Solutions AB
International Classes:
H02M1/14; H02M3/155
Domestic Patent References:
| JP11098716A | ||||
| JP2004297551A |
Foreign References:
| CN107528466A |
Attorney, Agent or Firm:
Suzue International Patent Office