公开(公告)号：US20190063958A1

公开(公告)日：2019-02-28

申请号：US16076680

申请日：2017-02-13

申请人： AMS AG

发明人： Dalibor KOLAR ,  Gerhard OBERHOFFNER ,  Simone SABATELLI ,  Dominik RUCK

IPC分类号： G01D5/244

摘要： A sensor arrangement has a current mirror structure that is configured to provide respective base currents at each of a plurality of output current paths based on an input current. For each of the output current paths, a respective adjustment current source is provided that is digitally controllable and is connected to the respective output current path for adjusting the base current of said output current path. For each of the output current paths, a current biased sensor element is coupled in said output current path. The sensor arrangement further has a selection element for selectively connecting one of the output current paths to an evaluation block based on a selection signal. The evaluation block is configured to generate a sensing value corresponding to a resulting current in the connected output current path, to compare the sensing value with an average value, and to update the average value based on the sensing value. A digital control is adapted for generating the selection signal and for digitally adjusting the respective adjustment current source of the connected output current path based on the comparison result.

公开(公告)号：US20230353133A1

公开(公告)日：2023-11-02

申请号：US17780567

申请日：2020-11-11

申请人： ams AG

发明人： Dalibor KOLAR

IPC分类号： H03K5/1532 ,  G01R19/04

CPC分类号： H03K5/1532 ,  G01R19/04 ,  H03K5/08

摘要： A peak-detector circuit may include a first input terminal for providing a first input voltage, a first rectifying element with an anode connected to the first input terminal, a first capacitor with a first electrode connected to a cathode of the first rectifying element, a first terminal coupled to the first electrode of the first capacitor, a second rectifying element with a cathode connected to the first input terminal, a second capacitor, a first switch coupling an anode of the second rectifying element to a first electrode of the second capacitor, and a second terminal coupled to the first electrode of the second capacitor.