Title:
DETECTING METHOD FOR OUTPUT CURRENT OF INVERTER
Document Type and Number:
Japanese Patent JPH05322938
Kind Code:
A
Abstract:
PURPOSE: To make it possible to detect the output current of an inverter simply and highly accurately at a low cost.
CONSTITUTION: One phase of the output current of an inverter 2 is detected with a current transformer(CT) 4. The current undergoes full-wave rectification in a rectifier circuit 5. The full-wave rectified current undergoes sampling with a CPU 6, and the current is detected. In this way, the highly accurate current detection, which is hardly affected with ripples, can be performed.
Inventors:
ITOIGAWA NOBUO
Application Number:
JP12865492A
Publication Date:
December 07, 1993
Filing Date:
May 21, 1992
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
G01R19/04; H02M7/48; (IPC1-7): G01R19/04; H02M7/48
Attorney, Agent or Firm:
Kiyoshi Matsuzaki