Invention Grant
- Patent Title: Schmitt trigger circuit having mismatched input and supply
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Application No.: US17749278Application Date: 2022-05-20
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Publication No.: US11881859B2Publication Date: 2024-01-23
- Inventor: Abhishek Gupta , Sayantan Gupta
- 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 Valerie M. Davis; Frank D. Cimino
- Main IPC: H03K3/00
- IPC: H03K3/00 ; H03K3/3565 ; H03K3/2893

Abstract:
A circuit includes an inverter coupled between an input and an output. The inverter includes first and second pull-down transistors having control terminals coupled to the input, a pull-up resistor, and a pull-up transistor having a control terminal coupled to the input. The first and second pull-down transistors are coupled in series along a pull-down path extending between a first voltage supply terminal and the output. The pull-up resistor and pull-up transistor are coupled in series along a pull-up path extending between a second voltage supply terminal and the output. A hysteresis transistor has a control terminal coupled to the output. The hysteresis transistor is coupled to the inverter along a hysteresis path extending between the first voltage supply terminal and the pull-up path. A clamp circuit is coupled to the inverter along a clamp path extending between the first voltage supply terminal and the pull-down path.
Public/Granted literature
- US20230378942A1 SCHMITT TRIGGER CIRCUIT HAVING MISMATCHED INPUT AND SUPPLY Public/Granted day:2023-11-23
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