Title:
OUTPUT CURRENT DETECTING SYSTEM FOR POWER CONVERTER
Document Type and Number:
Japanese Patent JPS5851776
Kind Code:
A
Abstract:
PURPOSE:To detect the output current of a converter by performing the prescribed calculation base on the magnitude of an input current and the phase of a gate signal. CONSTITUTION:A current i1 detected by a current detector 10 is inputted to an input terminal T0, this signal is led to an inverting amplifier N1 and switches S1, S3, S5, and the output -i1 of the amplifier N1 is led to switches S2, S4, S6. The outputs of the switches S1 and S2, S2 and S3, S4 and S5 are respectively added by inverting amplifiers N2, N3, N4, and are respectively inputted to terminals T2, T8, T9. On the other hand, switches S1-S6 are closed by gate signals g1-g6 from inverter gate signal generator 9, and phase currents iR, ig, iT are respectively obtained from output terminals T7-T9.
Inventors:
MINAMOTO MASAHIRO
NAKAHARA KAZUHITO
NAKAHARA KAZUHITO
Application Number:
JP14796881A
Publication Date:
March 26, 1983
Filing Date:
September 21, 1981
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
H02M7/515; (IPC1-7): H02P13/20
Attorney, Agent or Firm:
Namiki Akio