Patent · US Active

Low power ADC sampling in a digital power controller

US10574253B1 · kind B1 · utility

3Cited by
3References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 19, 2019
Grant dateFeb 25, 2020
Priority date—
Expiry dateMar 19, 2039

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R19/2513
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

According to certain aspects, the present embodiments provide a solution for sampling and converting an analog signal at high frequencies but with low power consumption. In some embodiments, a low power, low resolution, AC coupled ADC is used to track the high frequency component of the analog input signal, in parallel with a high resolution ADC to sense the DC signal at a significantly lower sample rate. According to some aspects, the AC coupled ADC requires no reference or a low resolution reference. In these and other embodiments, a plurality of low resolution, low power ADCs having a high sampling rate may be time multiplexed together with a precision ADC at a low sampling rate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.