Title:
WAVEFORM SHAPING CIRCUIT OF INVERTER TRANSFORMER FOR SINGLE-PHASE THREE-WIRE OUTPUT
Document Type and Number:
Japanese Patent JPH0595667
Kind Code:
A
Abstract:
PURPOSE: To improve a waveform distortion, without using a large filter capacitor for a waveform shaping circuit, in opposition to the unbalance and the variety of loads.
CONSTITUTION: A filter circuit, wherein with the output side of a PWM inverter 1 constituting an uninterruptive power supply, connected is a cross winding type transformer 2 for a single-phase three-wire output, which has a leakage inductance, and further, with the secondary output side of the transformer 2, a filter capacitor 3 is connected.
Inventors:
OKAMOTO TAKAYUKI
ABE MAKOTO
ABE MAKOTO
Application Number:
JP28070991A
Publication Date:
April 16, 1993
Filing Date:
October 01, 1991
Export Citation:
Assignee:
NIPPON ELECTRIC IND
International Classes:
H02J3/01; H02M1/12; H02M7/48; (IPC1-7): H02J3/01; H02M1/12; H02M7/48
Attorney, Agent or Firm:
Takeo Masuda