Koninklijke Philips Corporation N.v.

Kwong Lim Chin

Milind Vishwas Date

Gary Chi Yang Lim

Yao Hean Chiah

Kin Leong Yip

Wei Bian

Sudheer Reddy Tirumala

Jose Luis Garcia Estrada

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 ().

Method and system for sensing a liquid level

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Eindhoven, Netherlands

Kwong Lim Chin