Power sensing
AssigneeSilego Technology, Inc.
InventorsTom Truong, Albert Chen
Life of this patent
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Abstract
Improved techniques for sensing and reporting consumed power are disclosed. The disclosed techniques comprise an integrated circuit solution for sensing power. In some embodiments, such an integrated circuit comprises a resistor on which a sense voltage sensed across an external resistor in response to a load current is mirrored and an analog-to-digital converter configured to regulate the voltage across the resistor and output a binary value representing power. The binary value representing power may integrate one or more electrical or environmental parameters such as current, voltage, temperature, battery voltage, etc.
Claims23
An integrated circuit, comprising:
- an internal resistor on which a sense voltage sensed across an external resistor in response to a load current is mirrored;
- and
- an analog-to-digital converter whose output sets a resistor ladder that regulates the voltage across the internal resistor to mirror the sense voltage and comprises a digital value representing power.
A computer program product embodied in a non-transitory computer readable storage medium and comprising computer instructions for:
- mirroring a sense voltage sensed across an external resistor in response to a load current on an internal resistor of an integrated circuit;
- and
- regulating voltage across the internal resistor to mirror the sense voltage using a resistor ladder set by an output of an analog-to-digital converter comprising the integrated circuit,
- wherein the output of the analog-to-digital converter comprises a digital value representing power.
A method, comprising:
- mirroring a sense voltage sensed across an external resistor in response to a load current on an internal resistor of an integrated circuit;
- and
- regulating voltage across the internal resistor to mirror the sense voltage using a resistor ladder set by an output of an analog-to-digital converter comprising the integrated circuit, wherein the output of the analog-to-digital converter comprises a digital value representing power.
Dependencies are inferred from the claim text.