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, 2005
Filed:
Mar. 30, 2001
Peter Busch, Augsburg, DE;
Peter Busch, Augsburg, DE;
Fujitsu Siemens Computers GmbH, Munich, DE;
Abstract
The invention relates to a circuit arrangement for measuring the current consumption of a transistor-controlled load, in particular of an electromotor, whereby a load current (I) is detected by measuring the controlling current (I) of an output bipolar transistor (T). The controlling current (I) is detected using the voltage drop across an internal measuring shunt (R). As the controlling current (I) is substantially smaller than the load current, the power losses are negligible in comparison with a measuring shunt that is connected in series to the load. In addition, there is no need for a controlling unit input, to which an external measuring-circuit voltage is applied.