Invention Grant
- Patent Title: Capacitive level shifter
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Application No.: US16504149Application Date: 2019-07-05
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Publication No.: US10707871B1Publication Date: 2020-07-07
- Inventor: Mohammad Al-Shyoukh
- Applicant: Silicon Laboratories Inc.
- Applicant Address: US TX Austin
- Assignee: Silicon Laboratories Inc.
- Current Assignee: Silicon Laboratories Inc.
- Current Assignee Address: US TX Austin
- Agency: Zagorin Cave LLP
- Main IPC: H03K19/0185
- IPC: H03K19/0185 ; H03K3/356 ; H03K19/00

Abstract:
A level shifter includes a flying capacitor having a first plate and a second plate. The level shifter includes a circuit coupled to the first plate and coupled to the second plate. The circuit is configured to receive a received signal having a logic state using a first voltage domain and configured to generate a symmetrical output signal having the logic state using a second voltage domain based on charge stored by the flying capacitor. The level shifter has a propagation delay from the received signal to the symmetrical output signal of less than one nanosecond with negligible duty cycle distortion.
Information query
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