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:
Jun. 09, 1998
Filed:
Jun. 06, 1995
Rudolf Limpaecher, Topsfield, MA (US);
D.C. Transformation, Inc., Beverly, MA (US);
Abstract
An electrical power transfer apparatus for connecting to a multiphase power line carrying a AC signal having a period of T.sub.AC, the apparatus including: a capacitive storage circuit; a plurality of charge transfer circuits connected to the capacitive storage circuit and each of which is connected to a different phase of the multiphase power line, wherein during operation the charge transfer circuits resonantly transfer power to and from the multiphase power line and capacitive storage circuit, wherein the resonant transfers to and from the capacitive charge storage circuit occur with a resonant frequency at least as great as 1/T.sub.AC ; and a control circuit coupled to the plurality of charge transfer circuits and which during operation causes the plurality of charge transfer circuits to transfer power between different phases of the multiphase power line via the capacitive storage circuit.