The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 1985
Filed:
Mar. 02, 1983
Futoshi Okamoto, Hirakata, JP;
Matsushita Electric Works, Ltd., Kadoma, JP;
Abstract
A power supply apparatus is structured such that the output of an alternating current voltage source (1) is connected to the input of a rectifying circuit (2), a series connection of a first smoothing capacitor (3a), a diode (15) and a second smoothing capacitor (3b) is connected to the output of the rectifying circuit so that the rectifying direction of the diodes may be opposite to the rectifying direction of the rectifying circuit, a first load (4a) is connected in parallel with the series connection portion of the first smoothing capacitor and the diode, and a second load (4b) is connected in parallel with the series connection portion of the second smoothing capacitor and the diode. Accordingly, during a period in which a ripple voltage of the output from the rectifying circuit is high, the first and second smoothing capacitors are charged and a current flows into the first and second loads, and during a period in which a ripple voltage of the output from the rectifying circuit is low a current flows from the first smoothing capacitor through the diode to the first load and a current flows from the second smoothing capacitor through the diode to the second load, whereby a stabilized voltage of little ripple component can be supplied to the first and second loads.