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US 2021/0305997 A1Published application
Device comprising a sensor, controller and corresponding methods
AssigneeInfineon Technologies AG
InventorMario MOTZ
Life of this patent
Estimating the term…
Abstract
A device includes a sensor configured to output an analog sensor signal, an analog-to-digital converter circuit configured to convert the analog sensor signal into a sigma-delta-modulated digital signal having a bit width of n bits, and a pulse width modulator configured to generate a pulse-width-modulated signal based on the sigma-delta-modulated digital signal.
Claims24
A device, comprising:
- a sensor configured to output an analog sensor signal;
- an analog-to-digital converter circuit configured to convert the analog sensor signal into a first digital signal having a bit width of n bits, wherein the first digital signal is a sigma-delta-modulated signal and n is equal to or greater than one;
- and
- a pulse width modulator configured to generate a pulse-width-modulated signal based on the first digital signal.
1 more element
A controller, comprising:
- an input configured to receive a pulse-width-modulated signal from a sensor device;
- and
- a processing circuit configured to generate a first digital reception signal based on averaging over k cycles of the pulse-width-modulated signal, where k is greater than or equal to 2.
A method, comprising:
- generating a first digital signal having a bit width of n bits based on an analog sensor signal, wherein the first digital signal is a sigma-delta-modulated signal and n is equal to or greater than one, and
- generating a pulse-width-modulated signal based on the first digital signal.
A method, comprising:
- receiving from a sensor device a pulse-width-modulated signal generated based on a sigma-delta-modulated signal;
- and
- generating a first digital signal based on averaging over k cycles of the pulse-width-modulated signal, where k is greater than or equal to 2.
Dependencies are inferred from the claim text.