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. 31, 2017
Filed:
Jul. 23, 2013
Ams Ag, Unterpremstaetten, AT;
Gonggui Xu, Plano, TX (US);
AMS AG, Unterpremstaetten, AT;
Abstract
An electric circuit of a switchable current source () comprises an input path (IP) comprising a first resistor (R) and a controllable current source (CS) to provide a changeable current (Itrim) and an output current path (OP) including a controllable output driver (MN), a second resistor (R) and an output terminal (LDR_PIN). A sensing voltage (VSENSE) is tapped at the output current path (OP) and is fed back to a regulator circuit (RC) by a feedback path (FP). The regulator circuit (RC) is connectable to the input path (IP) and the output path (OP) and provides an output signal (Vout) to control the output current driver (MN). The switchable current source () enables to provide an output current (ILDR) at the output terminal (LDR_PIN) in dependence on the first and second resistor (R, R) and the changeable current (Itrim).