Analog-to-digital converter and method for digitizing an electrical voltage value

By converting analog electrical voltage into a magnetic field for measurement, the ADC achieves stable and precise digitization, overcoming the limitations of drift-prone voltage references in traditional ADCs.

DE102025101917B3Active Publication Date: 2026-07-09HAHN SCHICKARD GESELLSCHAFT FUR ANGEWANDTE FORSCHUNG EV
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Patent Information

Application Number
DE102025101917
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-07-09
Estimated Expiration
2045-01-20

AI Technical Summary

Technical Problem

Existing analog-to-digital converters (ADCs) suffer from drift-prone voltage references, leading to inaccurate and non-reproducible measurements over time.

Method used

Convert the analog electrical voltage into a magnetic field, which is measured using a magnetic field detection device, eliminating the need for a drift-prone reference by utilizing magnetic field generation and detection devices, such as coils and magnetic field cameras, to generate and detect magnetic fields correlated with the voltage.

Benefits of technology

Provides precise and stable digitization of electrical voltage values over time by leveraging magnetic field measurements, avoiding the inaccuracies associated with traditional voltage references.

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Abstract

An analog-to-digital converter (ADC) comprises a magnetic field generation device configured to generate a magnetic field based on an analog electrical voltage applied to the magnetic field generation device. A magnetic field detection device is configured to detect the magnetic field and output a signal based on the magnetic field. An evaluation device is configured to evaluate the signal and provide an evaluation signal that indicates a digital value of the electrical voltage.
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