Title:
POWER CONVERTER
Document Type and Number:
Japanese Patent JPS5666167
Kind Code:
A
Abstract:
PURPOSE:To ensure the supply of AC output without the interruption thereof even during the interruption of DC power by providing the DC-AC converter using a constantly power supplied battery as the power source. CONSTITUTION:DC voltage is converted into AC by a half bridge circuit 6 and AC outputs A1 and A2 are obtained from a constant voltage transformer 8. Further, a battery 11 is constantly supplied with power through the full-wave rectification of the output A2. DC power interruption is detected by a current transformer 1A so that the change-over of a change-over contactor 14 is performed for a half-bridge circuit 13 using the battery 11 as input power source. Thus-obtained output is impressed to the primary side of a constant voltage transformer 8 via the normally closed contact of the contactor 14 for obtaining the AC output A1 equivalent to that obtained normally. Thereby, power can be continuously supplied while AC output is little interrupted.
Inventors:
YASUOKA IKUO
MINAMI YOUTAROU
MINAMI YOUTAROU
Application Number:
JP13864979A
Publication Date:
June 04, 1981
Filing Date:
October 29, 1979
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
H02M3/28; (IPC1-7): H02M3/28