Time-based supply voltage difference to digital conversion
AssigneeInfineon Technologies AG
InventorFranesco Brandonisio
Life of this patent
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Abstract
Systems, methods, and circuitries are provided to generate a regulated supply voltage based on a target voltage. In one example, a method includes converting the target voltage to a first digital time-based signal and converting the regulated supply voltage to a second digital time-based signal. A difference signal is generated based at least on a difference between the first digital time-based signal and the second digital time-based signal. Regulator circuitry is controlled to generate the regulated supply voltage based at least on the difference signal.
Claims22
A method for generating a regulated supply voltage for a load based on a target voltage, the method comprising:
- converting the target voltage to a first digital time-based signal;
- converting the regulated supply voltage to a second digital time-based signal;
- generating a difference signal based at least on a difference between the first digital time-based signal and the second digital time-based signal;
- and
- controlling regulator circuitry to generate the regulated supply voltage based at least on the difference signal.
A supply voltage regulation system configured to generate a regulated supply voltage for a load based on a target voltage, the system comprising:
- target voltage-to-time conversion circuitry configured to convert the target voltage to a first digital time-based signal;
- regulated supply voltage-to-time conversion circuitry configured to convert the regulated supply voltage to a second digital time-based signal;
- difference circuitry configured to:
- generate a difference signal based at least on a difference between the first digital time-based signal and the second digital time-based signal;
- and
- provide the difference signal to a regulator circuitry to cause the regulator circuitry to generate the regulated supply voltage based at least on the difference signal.
Voltage-to-time conversion circuitry comprising:
- an oscillator configured to input a voltage and generate an oscillator signal having a frequency related to the voltage;
- and
- period digitization circuitry configured to:
- determine a period of the oscillator signal;
- and
- generate the digital time-based signal based at least on the period;
- and
- provide the digital time-based signal for use in controlling an electronic component based on the voltage.
Dependencies are inferred from the claim text.