TI pioneers the industry's first stand-alone active EMI filter ICs, supporting high-density power supply designs

04/28/2023

Texas Instruments (TI) debuted the industry’s first stand-alone active electromagnetic interference (EMI) filter integrated circuits (ICs), enabling engineers to implement smaller, lighter EMI filters, to enhance system functionality at reduced system cost while simultaneously meeting EMI regulatory standards.

As electrical systems become increasingly dense and interconnected, mitigating EMI is a critical system design consideration for engineers. With innovative developments from Kilby Labs, TI’s research and development labs for new concepts and breakthrough ideas, the new portfolio of stand-alone active EMI filter ICs can sense and cancel common-mode EMI by as much as 30 dB at frequencies between 100 kHz and 3 MHz in single- and three-phase AC power systems. This capability enables designers to reduce the size of chokes by 50%, compared to purely passive filter solutions, and meet stringent EMI requirements.

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