公开(公告)号：US11050424B1

公开(公告)日：2021-06-29

申请号：US16894201

申请日：2020-06-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hareharan Nagarajan ,  Sajal Mittal ,  Abdur Rakheeb ,  Nandish Uppal Raravi ,  Vinod Sharma

IPC: H03K19/0185 ,  H03K3/012 ,  H03K3/037

Abstract: Methods and apparatus for implementing a current-mirror based level shifter circuit are provided. The current-mirror based level shifter circuit includes a current-mirror circuit, a feedback control circuit, a power down circuit and a plurality of inverter circuits. The apparatus is configured to provide a wide voltage shifting range using the current-mirror based level shifter circuit. The apparatus comprising a feedback loop with two diode connected transistors may provide a constant drivability to the node that drives the output, when a current-mirror circuit is turned-off.