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:
Apr. 04, 2017
Filed:
Jan. 09, 2013
Koninklijke Philips N.v., Eindhoven, NL;
Oedilius Johannes Bisschop, Drachten, NL;
Tjerk Kornelis Bij De Leij, Drachten, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
A power adaptor to supply power for a portable device has an input circuit () for receiving mains input power, a power switch device (), a power inductance () and an output circuit () coupled to the power inductance to provide the supply power for the portable device, and a controller () for controlling the power switch device according to a supply power requirement of the portable device. The adaptor has a measurement inductance () magnetically coupled to the power inductance, and the controller comprises a measurement input () for detecting a measurement signal indicative of a magnetic state of the power inductance. The controller detects the supply power requirement based on the magnetic state in response to a controlling of the power switch device via the controller. Advantageously different portable devices can be supplied by appropriate power.