Title:
【発明の名称】電源回路
Document Type and Number:
Japanese Patent JP2929635
Kind Code:
B2
Abstract:
In a power source circuit of this invention, an AC voltage of a commercial AC power source (30) is full-wave-rectified by a diode bridge (38) and divided into two 1/2 voltages by two capacitors (48, 50) connected to the output terminals of the diode bridge (38). A half-bridge invertor operation is performed by a smoothing capacitor and first and second reverse-conductive switches (74, 76) connected in parallel with the output terminals of the diode bridge (38) via inductors (52, 60), respectively. A power from the capacitors (48, 50) is temporarily stored in the inductors (52, 60), and the first and second reverse-conductive switches (74, 76) are operated, thereby performing two boosting chopper operations.
Inventors:
SHIMIZU KEIICHI
Application Number:
JP2109090A
Publication Date:
August 03, 1999
Filing Date:
January 31, 1990
Export Citation:
Assignee:
TOSHIBA RAITETSUKU KK
International Classes:
H02M5/458; H02M7/48; H02M7/5387; H05B41/24; H05B41/28; (IPC1-7): H02M7/5387
Attorney, Agent or Firm:
Kabazawa Xiang (3 people outside)