Active voltage compensation device

JP2026090561APending Publication Date: 2026-06-02EM CORETECH
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
EM CORETECH
Filing Date
2026-03-02
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Conventional EMI filters for high-power systems are bulky, costly, and difficult to mass-produce due to the need for multiple discrete components, and they lack effective protection against external disturbances and easy malfunction detection.

Method used

An integrated active voltage compensation device with a sensing unit, amplification unit, and compensation unit, including an integrated circuit and power conversion unit, which actively compensates for common-mode noise and protects against disturbances like lightning strikes, with integrated malfunction detection.

Benefits of technology

The device minimizes size, cost, and weight while providing stable operation across various power systems, enabling easy verification of functionality and protection against external shocks.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026090561000001_ABST
    Figure 2026090561000001_ABST
Patent Text Reader

Abstract

The present invention provides an active voltage compensation device that actively compensates for common-mode noise occurring in each of at least two or more high-current paths. [Solution] The active voltage compensation device 100 includes a sensing unit 120 that senses common-mode noise current on a high-current path and generates an output signal corresponding to the noise current, an amplification unit 130 that amplifies the output signal of the sensing unit and generates an amplified signal, an amplified signal feedback unit 150 that transmits a feedback signal corresponding to the amplified signal of the amplification unit back to the amplification unit, and a compensation unit 160 that generates a compensation voltage on the high-current path based on the output voltage corresponding to the amplified signal.
Need to check novelty before this filing date? Find Prior Art