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US 2013/0293278 A1Published application
Low power dual voltage mode receiver
AssigneeConexant Systems, Inc.
InventorsChristian Larsen, Mark R. Tennyson
Life of this patent
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Abstract
A dual-voltage receiver, comprising a voltage detector. A high voltage Schmitt trigger coupled to the voltage detector. A low voltage Schmitt trigger coupled to the voltage detector. A combined level shifter coupled to the high voltage Schmitt trigger and the low voltage Schmitt trigger, wherein the high voltage Schmitt trigger is on and the low voltage Schmitt trigger is off when the voltage detector outputs a high voltage detect signal.
Claims20
A dual-voltage receiver, comprising:
- a voltage detector;
- a high voltage Schmitt trigger coupled to the voltage detector;
- a low voltage Schmitt trigger coupled to the voltage detector;
- and
- a combined level shifter coupled to the high voltage Schmitt trigger and the low voltage Schmitt trigger, wherein the high voltage Schmitt trigger is configured to be on and the low voltage Schmitt trigger is configured to be off when the voltage detector outputs a high voltage detect signal.
2 more elements
A dual-voltage receiver comprising:
- an electrostatic discharge and filter capacitor stage configured to receive an input voltage and a voltage detect signal and output a filtered signal;
- a low voltage hysteresis inverter coupled to the electrostatic discharge and filter capacitor stage configured to receive the filtered signal;
- a high voltage inverter stage coupled to the input;
- an inverting low-voltage level shifter stage coupled to the low voltage hysteresis inverter;
- and
- a combined level shifter with AND gate stage coupled to the inverting low-voltage level shifter stage and the high voltage inverter stage.
3 more elements
A dual-voltage receiver, comprising:
- a voltage detector;
- a high voltage receiver coupled to the voltage detector;
- a low voltage receiver coupled to the voltage detector;
- and
- a level shifter comprising a high voltage device coupled to the high voltage receiver and a low voltage device coupled to the low voltage receiver, wherein the high voltage device is coupled to the low voltage device and the high voltage receiver is configured to be on and the low voltage receiver is configured to be off when the voltage detector outputs a high voltage detect signal.
2 more elements
Dependencies are inferred from the claim text.