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:
Nov. 28, 2000
Filed:
Jul. 06, 1999
Hiroto Uejima, Kusatsu, JP;
Hidenori Okuda, Kouka-gun, JP;
Isamu Okuda, Ohtsu, JP;
Takashi Uno, Matsuzaka, JP;
Toshikazu Masuzawa, Kusatsu, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A power supply circuit capable of reducing the power consumption during the standby state of an electric appliance. The power supply circuit for supplying the electric appliance with voltages to drive and control the electric appliance, includes a controller for controlling the operation of the electric appliance, a DC-DC converter for outputting a fixed voltage V.sub.1 and a variable voltage V.sub.2, and a regulator for converting the fixed voltage V.sub.1 derived from the DC-DC converter into a specified voltage and supplying the specified voltage to the controller 16 for the electric appliance. The DC-DC converter identifies the state of the air conditioner. When the electric appliance is identified to be in the standby state, the DC-DC converter reduces the fixed voltage V.sub.1, which is inputted to the regulator to a voltage lower than a voltage outputted in the operative state.