Invention Grant
- Patent Title: Level shifter with auto voltage-bias reliability protection
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Application No.: US16743617Application Date: 2020-01-15
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Publication No.: US10911047B1Publication Date: 2021-02-02
- Inventor: Rohit Shetty , Chiew-Guan Tan , Gregory Lynch
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Patterson & Sheridan, L.L.P
- Main IPC: H03K19/003
- IPC: H03K19/003 ; H03K19/00 ; H03K3/356 ; H03K3/012 ; H03K19/0185

Abstract:
Certain aspects of the present disclosure generally relate to a level-shifting circuit. The level-shifting circuit generally includes a first pull-up path having at least one first diode and at least one first transistor, and a second pull-up path having at least one second diode and at least one second transistor. The level-shifting circuit may also include a first pull-down path having a third transistor and a fourth transistor, wherein the fourth transistor is coupled between the third transistor and the first diode; a second pull-down path having a fifth transistor and a sixth transistor, wherein the sixth transistor is coupled between the fifth transistor and the second diode; and an overvoltage protection circuit coupled to gates of the fourth transistor and the sixth transistor.
Public/Granted literature
- US1298636A Protector for the eyes. Public/Granted day:1919-04-01
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