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. 05, 2022
Filed:
Jun. 09, 2017
Ams Ag, Premstaetten, AT;
Manfred Lueger, Stainz, AT;
AMS AG, Premstaetten, AT;
Abstract
A driving circuit () to generate a signal pulse for operating a light-emitting diode () comprises an external terminal (LEDK, LEDA) to connect the light-emitting diode () to the driving circuit (). In a first operating state/pre-charge state of the driving circuit (), a first controllable switching circuit () connects a first side () of a capacitor () to a reference potential (Vref) and a second controllable switch () connects a second side () of the capacitor () to one of a supply and ground potential (VDD, VSS). In a second operating state of the driving circuit (), the first controllable switching circuit () connects the first side () of the capacitor () to said one of the supply and ground potential (VDD, VSS) and the second controllable switch () connects the second side () of the capacitor () to the external terminal (LEDK, LEDA) to provide a signal pulse for operating the light emitting diode.