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:
Mar. 22, 2016
Filed:
Jan. 28, 2013
Hella Kgaa Hueck & Co., Lippstadt, DE;
Dieter Nietfeld, Paderborn, DE;
HELLA KGAA HUECK & CO., , DE;
Abstract
A method for operating a circuit configuration which includes a power source, a light diode field switched serially with the power source in which the light diode field comprises at least two serial circuits including at least one light diode and a switch, a control and/or regulating means for the light diode field, and a voltage sensor. The control and/or regulation means controlling the controllable switches and the power source such that the control and/or regulation means addresses the controllable switch of at least one serial circuit of the light diode field during a clock cycle for a pulse duration determined by the control and/or regulation means using a control pulse at the control input of the controllable switch for closing. The control and/or regulation means addresses the power source shortly before or at the latest simultaneous with the end of a pulse duration such that the current is reduced, namely by the amount of current through the serial circuit. The controllable switch at the end of the pulse duration is addressed by the control and/or regulation means for opening. During subsequent clock cycles the control and/or regulation means switch on only one of the controllable switches of the serial circuits for a period identified as diagnostics period.