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. 25, 2014
Filed:
May. 18, 2009
Pramod Singnurkar, Graz, AT;
Pramod Singnurkar, Graz, AT;
AMS AG, Unterpremstaetten, AT;
Abstract
A controlled current source comprises a signal input to receive a control input bus signal (D0, . . . , D[n−1]), a mapping unit (MU) with an input coupled to the signal input and an output to provide an internal control bus signal (d0, . . . , dn, Hc), a reference generator (RG) with an input coupled to the output of the mapping unit (MU) and with a low reference output to provide a low reference potential (Vgl) and with a high reference output to provide a high reference potential (Vgh), a current generating unit (CG) with a first input coupled to the output of the mapping unit (MU), a second input coupled to the output of the reference generator (RG) and an output to provide an output current (Iout) controlled by the control input bus signal (D0, . . . , D[n−1]) and the low and high reference potentials (Vgh, Vgl). Furthermore, a method for sourcing a current is provided.