Apparatus for generating a digital signal dependent on a current slope
AssigneeRenesas Design (UK) Limited
InventorDantes John
Life of this patent
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Abstract
An apparatus for generating a digital signal that is dependent on an average slope of a first current flowing through a circuit element during a sample period, the apparatus comprising a delta-sigma modulator configured to sense the first current during the sample period, and generate the digital signal using the sensed first current.
Claims22
An apparatus for generating a digital signal that is dependent on an average slope of a first current flowing through a circuit element during a sample period, the apparatus comprising:
- a delta-sigma modulator configured to:
- sense the first current during the sample period;
- and
- generate the digital signal using the sensed first current by converting the average slope of the first current into the digital signal,
- wherein the average slope of the sensed first current is an average rate of change of the sensed first current with time.
A method of generating a digital signal that is dependent on an average slope of a first current flowing through a circuit element during a sample period, the method comprising:
- sensing, using a delta-sigma modulator, the first current during the sample period;
- and
- generating, using the delta-sigma modulator, the digital signal using the sensed first current by converting the average slope of the first current into the digital signal,
- wherein the average slope of the first current is an average rate of change of the first current with time.
Dependencies are inferred from the claim text.