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:
Jan. 23, 2001
Filed:
Jun. 01, 1999
Andreas Rampold, Mittweida, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The apparatus is used for detecting an output direct current (Ia) produced by a pulse controller (PS). This pulse controller (PS) has at least one chopper device (Z) for forming a pulsed intermediate voltage (Up) and a pulsed intermediate current (Ip), which are converted by a smoothing device (GA) into an output DC voltage (Ua) and an output direct current (Ia). The apparatus includes a circuit (Ms) for electrically floating detection of the pulsed intermediate current (Ip) and for converting it into a pulsed measurement voltage (Us), and a switching device (Se) which is clocked by the pulsed intermediate voltage. This switching device (Se) supplies the pulsed measurement voltage (Us) in synchronism with the pulsed intermediate voltage to a low-pass filter (Tp), which produces a measurement DC voltage (Um,) that is proportional to the output direct current (Ia).