Invention Grant
- Patent Title: Drive sense circuit
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Application No.: US17649887Application Date: 2022-02-03
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Publication No.: US12025646B2Publication Date: 2024-07-02
- Inventor: Phuong Huynh , Patrick Troy Gray
- Applicant: SigmaSense, LLC.
- Applicant Address: US DE Wilmington
- Assignee: SigmaSense, LLC.
- Current Assignee: SigmaSense, LLC.
- Current Assignee Address: US TX Austin
- Agency: GARLICK & MARKISON
- Agent Timothy W. Markison
- Main IPC: G01R29/26
- IPC: G01R29/26 ; G01R31/40 ; H03F3/45 ; H03K5/1252 ; H03K5/24 ; H03K5/00 ; H03M1/12 ; H03M1/66

Abstract:
A method includes providing, by a signal source circuit of a sensing circuit, a signal to a sensor via a conductor. When the sensor is exposed to a condition and is receiving the signal, an electrical characteristic of the sensor affects the signal. The signal includes at least one of: a direct current (DC) component and an oscillating component. When the sensing circuit is in a noisy environment, transient noise couples with the signal to produce a noisy signal. The method further includes comparing, by a transient circuit of the sensing circuit, the noisy signal with a representation of the noisy signal. When the noisy signal compares unfavorably with the representation of the noisy signal, supplying, by the transient circuit, a compensation signal to the conductor. A level of the compensation signal corresponds to a level at which the noisy signal compares unfavorably with the representation of the noisy signal.
Public/Granted literature
- US20220155359A1 DRIVE SENSE CIRCUIT Public/Granted day:2022-05-19
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