• Patent Title: Sensor arrangement for light sensing and temperature sensing and method for light sensing and temperature sensing
  • Application No.: US14849463
    Application Date: 2015-09-09
  • Publication No.: US09291496B2
    Publication 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
Sensor arrangement for light sensing and temperature sensing and method for light sensing and temperature sensing
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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