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:
May. 21, 2019
Filed:
Feb. 19, 2016
Koninklijke Philips N.v., Eindhoven, NL;
Wei Bian, Eindhoven, NL;
Kin Leong Yip, Eindhoven, NL;
Yao Hean Chiah, Eindhoven, NL;
Kwong Lim Chin, Eindhoven, NL;
Gary Chi Yang Lim, Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
The present application relates to a system () for sensing liquid level in a receptacle (). The system comprises a capacitive sensing probe (), for sensing a capacitance between the capacitive sensing probe () and an electrically conductive portion of the receptacle (). The system also comprises a control circuit () connected to the capacitive sensing probe () for detecting a level of the liquid in the receptacle () based on said capacitance, a non-isolated AC power supply () arranged to power the control circuit (), the non-isolated AC power supply () having an electrical connection between its input and its output, and at least one filter capacitor (C, C) connected in series between the capacitive sensing probe () and the control circuit ().