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US 2015/0084682 A1Published application
Dual Path Level Shifter
AssigneePeregrine Semiconductor Corporation
InventorsChris Olson, Neil Calanca
Life of this patent
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Abstract
Dual path level shifter methods and devices are described. The described level shifter devices can comprise voltage-to-current and current-to-voltage converters.
Claims14
A dual path level shifter comprising:
- a dual path level shifter input terminal;
- a dual path level shifter output terminal;
- a first voltage-to-current converter;
- a second voltage-to-current converter;
- a third voltage-to-current converter;
- a first current-to-voltage converter;
- and
- a second current-to-voltage converter,
- wherein:
- in a first condition, during operation, an input signal having an input signal level is routed from the dual path level shifter input terminal to the first voltage-to-current-converter, from the first voltage-to-current-converter to the second current-to-voltage-converter, from the second current-to-voltage converter to the third voltage-to-current converter, from the third voltage-to current-converter to the first current-to-voltage converter and from the first current-to-voltage converter to the dual path level shifter output terminal;
- and
- in a second condition, during operation, the input signal is routed from the dual path level shifter input terminal to the second voltage-to-current converter, from the second voltage-to-current converter to the first current-to-voltage converter and from the first current-to-voltage converter to the dual path level shifter output terminal, whereby the input signal level is shifted to an output signal level.
9 more elements
A level shifting method comprising:
- providing an input signal having an input signal level;
- providing an output terminal;
- providing a first signal path comprising a plurality of MOSFET devices;
- providing a second signal path comprising a plurality of MOSFET devices;
- routing, in a first condition, the input signal to the output terminal through the first signal path without shifting the input signal level, and routing, in a second condition, the input signal to the output terminal through the second signal path by shifting the input signal level to an output signal level higher than the input signal level,
- wherein:
- in the first and second condition, the MOSFET devices are configured such that junctions of each MOSFET device experience voltage levels not higher than a stress threshold level.
4 more elements
A level shifting method comprising:
- providing an input signal having an input signal level;
- providing an output terminal;
- providing a first signal path comprising a plurality of MOSFET devices;
- providing a second signal path comprising a plurality of MOSFET devices;
- routing, in a first condition, the input signal to the output terminal, and
- routing, in a second condition, the input signal to the output terminal and shifting the input signal level to an output signal level higher than the input signal level, wherein:
- in the first condition and second condition, the MOSFET devices are configured such that junctions of each MOSFET device experience voltage levels not higher than the input signal level.
4 more elements
Dependencies are inferred from the claim text.