Invention Grant
- Patent Title: Transducer interface pair impedance measurement
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Application No.: US16053662Application Date: 2018-08-02
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Publication No.: US11247232B2Publication Date: 2022-02-15
- Inventor: Krishnaswamy Nagaraj , Asif Qaiyum , Baher S. Haroun
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Ebby Abraham; Charles A. Brill; Frank D. Cimino
- Main IPC: B06B1/02
- IPC: B06B1/02 ; G01F1/66 ; H03K17/687

Abstract:
In described examples, a first and second driver each include a first-rail output transistor including a first terminal coupled to a first power rail and a second-rail output transistor including a first terminal coupled to a second power rail. The first-rail output transistor of each of the first and second drivers includes a second terminal coupled to a second terminal of the second-rail output transistor of an output node of each respective first and second driver. A resistive load includes a first terminal coupled to the first-driver output node and includes a second terminal coupled to the second-driver output node. A sampling circuit generates an indication of an impedance of at least one of the output transistors of the first and second drivers.
Public/Granted literature
- US20190039091A1 TRANSDUCER INTERFACE PAIR IMPEDANCE MEASUREMENT Public/Granted day:2019-02-07
Information query
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