High speed voltage level shifter

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United States of America Patent

PATENT NO 9948303
SERIAL NO

15367751

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Abstract

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In one embodiment, a voltage level shifter includes a first p-type metal-oxide-semiconductor (PMOS) transistor having a gate configured to receive an input signal in a first power domain, and a second PMOS transistor, wherein the first and second PMOS transistors are coupled in series between a supply voltage of a second power domain and a node. The voltage level shifter also includes an inverter having an input coupled to the node and an output coupled to a gate of the second PMOS transistor, and a first n-type metal-oxide-semiconductor (NMOS) transistor having a gate configured to receive the input signal in the first power domain, wherein the first NMOS transistor is coupled between the node and a ground.

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Patent Owner(s)

  • QUALCOMM INCORPORATED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Rui San Diego, US 216 2169
Lu, De San Diego, US 11 18
Narayanan, Venkat San Diego, US 22 225
Sinharoy, Samrat San Diego, US 5 14
Vattikonda, Rakesh San Diego, US 18 254
Vilangudipitchai, Ramaprasath San Diego, US 32 161

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