Invention Grant
- Patent Title: High-speed voltage clamp for unterminated transmission lines
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Application No.: US17479058Application Date: 2021-09-20
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Publication No.: US11632103B2Publication Date: 2023-04-18
- Inventor: Chad Andrew Marquart , Glen A. Wiedemeier , Daniel M. Dreps
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Jeffrey Ingalls
- Main IPC: H03K19/00
- IPC: H03K19/00 ; H03K5/08 ; H04L25/02 ; H03K19/003 ; H03K19/0944 ; H03K17/687

Abstract:
A high-speed voltage clamping circuit includes p-type field effect transistor (PFET) biasing circuit, an n-type field effect transistor (NFET) biasing circuit, and a field effect transistor (FET) clamp circuit. The PFET biasing circuit is configured to generate a PFET biasing voltage. The NFET biasing circuit is configured to generate a NFET biasing voltage. The FET clamp circuit is in signal communication with the PFET biasing circuit and the NFET biasing circuit. The PFET biasing circuit controls operation of the clamping circuit in response to a voltage overshoot event and the NFET biasing circuit controls operation of the clamping circuit in response to a voltage undershoot event.
Public/Granted literature
- US20230088871A1 HIGH-SPEED VOLTAGE CLAMP FOR UNTERMINATED TRANSMISSION LINES Public/Granted day:2023-03-23
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