- Patent Title: Electronic arrangement, optical gas sensor including such an electronic arrangement, and method for combined photocurrent and temperature measurement using such an electronic arrangement
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Application No.: US16439741Application Date: 2019-06-13
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Publication No.: US11262295B2Publication Date: 2022-03-01
- Inventor: Michael Weilguni
- Applicant: E+E Elektronik Ges.m.b.H.
- Applicant Address: AT Engerwitzdorf
- Assignee: E+E Elektronik Ges.m.b.H.
- Current Assignee: E+E Elektronik Ges.m.b.H.
- Current Assignee Address: AT Engerwitzdorf
- Agency: Leydig, Voit & Mayer Ltd.
- Priority: EP18177605 20180613
- Main IPC: G01J1/44
- IPC: G01J1/44 ; G01N21/3504 ; G01N21/27
Abstract:
An electronic arrangement includes a first bias terminal, a ground terminal, a photodiode including an anode terminal and a cathode terminal, and a transimpedance amplifier including an operational amplifier. The electronic arrangement is selectively switchable to a photocurrent measurement mode and a temperature measurement mode. In the photocurrent measurement mode: the anode terminal is connected to a first input of the operational amplifier; the cathode terminal is connected to a second input of the operational amplifier; and the first bias terminal is connected to the first input of the operational amplifier and the anode terminal. In the temperature measurement mode: the anode terminal is connected to the ground terminal; the cathode terminal is connected to the second input of the operational amplifier; and the first bias terminal is connected to the first input of the operational amplifier and disconnected from the anode terminal.
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