Title:
【発明の名称】中間回路キャパシタにおける電圧バランス
Document Type and Number:
Japanese Patent JP2003510996
Kind Code:
A
Abstract:
A balancing circuit for voltages of a series connection of capacitors, particularly for intermediate circuit capacitors ( 3 ) of an inverter, there being at least two intermediate circuit capacitors connected in series over intermediate circuit voltage. The balancing circuit comprises capacitor-specific freely oscillating inverters ( 4 ), the input poles of which are connected in parallel with the capacitor corresponding to the inverter and the output poles of which are connected in parallel to provide a voltage source (Va).
Inventors:
Miettinen, Erkki
Application Number:
JP2001525819A
Publication Date:
March 18, 2003
Filing Date:
September 21, 2000
Export Citation:
Assignee:
ABB O Salmon Yukiture
International Classes:
H02J7/00; H02M5/458; H02M7/48; H02M7/487; (IPC1-7): H02M7/48; H02J7/00
Attorney, Agent or Firm:
Akira Asamura (3 outside)