Dual voltage supply
First Claim
1. A system, comprising:
- a dual voltage supply configured to receive a logic state input voltage and configured to output an output voltage, wherein the dual voltage supply is configured to output a nominal voltage at a high state of the logic state input voltage and the dual voltage supply is configured to output a high voltage at a low state of the logic state input voltage;
a pre-charge capacitor configured to receive the output voltage of the dual voltage supply; and
an output buffer has an output buffer power input coupled to the pre-charge capacitor and configured to receive the output voltage of the dual voltage supply, an output buffer signal input configured to receive the logic state input voltage and an output buffer output configured to output a digital output signal.
2 Assignments
0 Petitions
Accused Products
Abstract
A system, comprising a dual voltage supply configured to receive a logic state input voltage and configured to output an output voltage, wherein the dual voltage supply is configured to output a nominal voltage at a high state of the logic state input voltage and the dual voltage supply is configured to output a high voltage at a low state of the logic state input voltage, a pre-charge capacitor is configured to receive the output voltage of the dual voltage supply and an output buffer has an output buffer power input is coupled to the pre-charge capacitor and configured to receive the output voltage of the dual voltage supply, an output buffer signal input is configured to receive the logic state input voltage and an output buffer output is configured to output a digital output signal.
4 Citations
30 Claims
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1. A system, comprising:
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a dual voltage supply configured to receive a logic state input voltage and configured to output an output voltage, wherein the dual voltage supply is configured to output a nominal voltage at a high state of the logic state input voltage and the dual voltage supply is configured to output a high voltage at a low state of the logic state input voltage; a pre-charge capacitor configured to receive the output voltage of the dual voltage supply; and an output buffer has an output buffer power input coupled to the pre-charge capacitor and configured to receive the output voltage of the dual voltage supply, an output buffer signal input configured to receive the logic state input voltage and an output buffer output configured to output a digital output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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at least three voltage dividing resistors coupled in series; a voltage divider switch coupled across at least one of the at least three voltage dividing resistors, said voltage divider switch configured to receive a logic state input voltage; a differential amplifier has a first differential amplifier input coupled to at least one of the at least three voltage dividing resistor and a second differential amplifier input configured to receive a reference voltage; a power gating transistor has a power gating gate coupled to a differential amplifier output of the differential amplifier, a power gating drain configured to be coupled to a power source and a power gating source coupled to one of the at least three voltage dividing resistors; a pre-charge capacitor coupled to the power gating source of the power gating transistor; and an output buffer configured to receive power from the source of the power gating transistor and the pre-charge capacitor, an output buffer signal input configured to receive the logic state input voltage and an output buffer signal output configured to output a digital output signal. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A system comprising:
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at least one third resistor; a power gating transistor has a power gating drain configured to be coupled to a power source and a power gating source coupled to the at least one third resistor; a pull up transistor has a pull up gate configured to receive a logic state input voltage, a pull up source coupled to a first end of the at least one third resistor; a differential amplifier has a first input coupled to a reference voltage and a differential amplifier output coupled to a power gating gate of the power gating transistor; and an output buffer has an input buffer power input configured to receive the output voltage, an output buffer signal input configured to receive the logic state input voltage and an output buffer signal output configured to output a digital output signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method comprising:
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a) establishing a digital output buffer having a buffer input, a buffer output and a buffer power connection; b) pre-charging a pre-charge capacitor coupled to the buffer power connection to one of a high state upon receiving a low logic state input voltage at the buffer input and a nominal state upon receiving a high logic state input voltage at the buffer input; and c) utilizing the charge stored on the pre-charge capacitor to drive the buffer output.
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30. A method comprising:
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a) establishing a digital output buffer having a buffer input, a buffer output and a buffer power connection; b) selecting two resistor division ratios to set a sense signal; c) pre-charging a pre-charge capacitor coupled to the buffer power connection based on the sense signal; and d) utilizing the charge stored on the pre-charge capacitor to drive the buffer output.
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Specification