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. 25, 2019
Filed:
Aug. 22, 2017
Signify Holding B.v., Eindhoven, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
Embodiments of the present disclosure involve a detection circuit for a tube and a tube including the detection circuit. The detection circuit comprises: impedance connected between two ends of a tube; a voltage detector configured to detect voltage on the impedance; a voltage threshold circuit configured to provide a voltage threshold; a first control circuit configured to compare voltage across the two ends of the tube to the voltage threshold, and to control the voltage detector to detect only when the voltage across the two ends of the tube is smaller than the voltage threshold. By using the detection circuit of the present disclosure, it can detect whether a human body contacts the tube under protection state, to avoid of the risk of getting an electrical shock.