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:
Jan. 01, 1991
Filed:
Apr. 04, 1990
Yukio Maeba, Kyoto, JP;
Takahito Chinomi, Nagaokakyo, JP;
Abstract
A DC power supply which is adapted to produce a DC main voltage between a main output terminal provided at one end of a first line and a ground terminal provided at one end of a second line; the power supply being characterized in that there is disposed a constant-voltage-drop means between the second line and the ground terminal; a third line extends from the second line side of the constant voltage drop means; and also an inverse polarity side output terminal is disposed at one end thereof so that an inverse polarity DC side voltage is adapted to be outputted between the inverse polarity side output terminal and the ground terminal, whereby main and side output voltage having opposite polarities can be produced through a simple construction.