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. 29, 1988
Filed:
Dec. 06, 1984
Wayne D Crowe, Houston, TX (US);
Abstract
A source of DC electrical power (A) provides DC electrical power to a power transmission cable (B) which extends to a remote location, such as a subsea module (D). The power transmission cable is connected with a pair of rectifiers (20a, 20b), each allowing only power of a selected polarity to be passed thereby. A pair of DC to AC inverters (24a, 24b) convert the received electrical power to high frequency square waves which are applied across primary windings (32a, 32b) of inductive couplers (30a, 30b). Secondary windings (38a, 38b) of the inductive couplers convey the AC electrical power to remote module rectifiers (40a, 40a) for providing DC electrical power to the subsea module. In this manner, DC electrical power is transmitted along the power transmission cable to reduce interference and crosstalk, yet the electric power is transmitted across an inductive coupler to facilitate safe separation of the remote module from the power transmission cable.