Invention Grant
- Patent Title: Level shifter with improved voltage difference
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Application No.: US15468296Application Date: 2017-03-24
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Publication No.: US10263621B2Publication Date: 2019-04-16
- Inventor: Shang-Chi Wu , Chiting Cheng , Wei-jer Hsieh , Yangsyu Lin
- Applicant: Taiwan Semiconductor Manufacturing Company Limited
- Applicant Address: TW Hsinchu
- Assignee: Taiwan Semiconductor Manufacturing Company Limited
- Current Assignee: Taiwan Semiconductor Manufacturing Company Limited
- Current Assignee Address: TW Hsinchu
- Agency: Jones Day
- Main IPC: H03L5/00
- IPC: H03L5/00 ; H03K19/00 ; H03K19/0185

Abstract:
A level shifter that comprises an input operating in an input voltage domain and an output for outputting an output signal in an output voltage domain. The level shifter further includes an inverter circuit operating in the input voltage domain for inverting an input signal to create an inverted input signal. The level shifter also includes an intermediate circuit operating in an intermediate voltage domain for generating an intermediate signal. An output buffer circuit generates the output signal based at least in part on the inverted input signal and the intermediate signal.
Public/Granted literature
- US20180278252A1 Level Shifter Public/Granted day:2018-09-27
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