Patent · US Active

Micro-scale planar-coil transformer with shield

US12125630B2 · kind B2 · utility

0Cited by

22References

18Claims

0Family size

Assignee

Analog Devices International Unlimited Company · IE

Inventors

Baoxing Chen · Westford, US
Wenhui Qin · Shanghai, CN
Yuanyuan Zhao · Lake Forest, US
Xin Yang · 东风镇, CN
Shaoyu Ma · Shanghai, CN

Key dates

Filing date	Jan 9, 2023
Grant date	Oct 22, 2024
Priority date	—
Expiry date	Jan 9, 2043

Classification

Technology area (CPC H)Electricity
CPC primaryH05K2201/09672
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Micro-scale planar-coil transformers including one or more shields are disclosed. The one or more shields can block most common-mode current from crossing from one side to another side of a transformer. Reduction of common-mode current crossing the transformer results in reduction of dipole radiation, which is the main component of electromagnetic interference (EMI) in some transformers.

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