Invention Grant
- Patent Title: Sensor arrangement for light sensing and temperature sensing and method for light sensing and temperature sensing
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Application No.: US14849463Application Date: 2015-09-09
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Publication No.: US09291496B2Publication Date: 2016-03-22
- Inventor: Gonggui Xu
- Applicant: ams AG
- Applicant Address: AT Unterpremstaetten
- Assignee: ams AG
- Current Assignee: ams AG
- Current Assignee Address: AT Unterpremstaetten
- Agency: McDermott Will & Emery LLP
- Priority: EP13162530 20130405
- Main IPC: G01N21/00
- IPC: G01N21/00 ; G01J1/42 ; G01K13/00

Abstract:
A sensor arrangement for light sensing and temperature sensing comprises a first sensor input (1) for connecting a temperature sensor (11) and a second sensor input (2) for connecting a light sensor (21), in particular an ambient light sensor. A sensor switch (S3) electrically connects either the first or the second sensor input (1, 2) to an integration input (41) of an integrating analog-to-digital converter (4). A reference circuit (5) connects to the integration input (41) via a first switch (S2). A first reference input (42) of the integrating analog-to-digital converter (4) is to be connected with a first reference potential (Vb1). A counter (6) connects to an integration output (43) of the integrating analog-to-digital converter (4). And a controller unit (6) connects to the counter (6) and is designed to control the first switch (S2) depending on an integrated sensor signal (Vout) integrated by the integrating analog-to-digital converter (4).
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