Leckstromkompensation

Details

Veröffentlichungs-Nr.

EP3945681

Aktenzeichen

EP20188774

Anmeldetag

30. Juli 2020

Veröffentlichung

3. September 2025

Erteilung

3. September 2025

Rechtsraum

EP

IPC

H03L7/099G05F1/46G05F3/26

Abstract

A leakage-current compensation circuit, comprising: a first node for connection of a first component thereto, whereby a first leakage current flows through the first component and through the first node with a given polarity with respect to the first node, the magnitude of the first leakage current dependent on a first potential difference across the first component; a second component connected to a second node and configured such that a second leakage current flows through the second component and through the second node, the magnitude of the second leakage current dependent on a second potential difference across the second component; a current mirror connected to the first node and the second node and configured to cause a compensation current to flow through the first node with opposite polarity to the first leakage current with respect to the first node, the magnitude of the compensation current dependent on the magnitude of the second leakage current due to current mirroring; a differential amplifier configured, based on a difference between the first potential difference and the second potential difference, to control a feedback component connected in series with the second component along a current path carrying the second leakage current to cause the second potential difference to track the first potential difference; and an AC coupling connected to superimpose an AC-component of the first potential difference on the second potential difference.

Anmelder

Firma

Socionext Inc.

Land

🇯🇵 Japan

Fachgebiete