Title:
POWER SOURCE CIRCUIT
Document Type and Number:
Japanese Patent JPS6126468
Kind Code:
A
Abstract:
PURPOSE:To reduce the supply of a power from a power source by supplying power only when the terminal voltage of a capacitor connected in parallel with a load becomes lower than the prescribed level. CONSTITUTION:When a switch SW is closed, a transistor Q3 is turned ON, and a capacitor C is charged by power from a line l1. When the capacitor C is charged to the prescribed voltage, a transistor Q4 is turned ON, a transistor Q5 is turned OFF, a transistor Q6 is turned ON, a transistor Q1 is turned OFF, a transistor Q2 is turned ON, and a transistor Q3 is turned OFF, and no power is applied to the capacitor C. When the capacitor C is discharged to turn OFF the transistor Q4, the capacitor C is again charged.
Inventors:
KOBAYASHI MASATO
Application Number:
JP14578984A
Publication Date:
February 05, 1986
Filing Date:
July 12, 1984
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
H02M3/155; (IPC1-7): H02M3/155
Attorney, Agent or Firm:
Nishikyo Keiichiro