Filter-ICs für Stromversorgungen

Reduce system size, weight and cost with stand-alone AEF ICs

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Mitigating electromagnetic interference (EMI) has become more challenging given the large passive filters in power-supply systems. By acting as a capacitance amplifier, our active EMI filter (AEF) ICs in our power-supply filter ICs portfolio make it possible to achieve up to 30 dB of additional EMI attenuation, reducing the inductance value of chokes in common-mode filters up to 80%. AEF ICs make it possible to reduce system size, weight and cost of EMI filters for high-power density solutions.

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Common-mode AEF ICs

AEF ICs sense the common-mode EMI voltage disturbances and inject noise-canceling current back into power lines, effectively amplifying the filter capacitance and enabling the use of smaller chokes. 

Related categories

Design- & Entwicklungsressourcen

Calculator tool
TPSF12Cx quickstart design tool for common-mode AEF
TPSF12C1/-Q1 and TPSF12C3/-Q1 common-mode AEF quickstart calculator tool
Evaluation board
TPSF12C3-Q1 three-phase active EMI filter evaluation board
The TPSF12C3-Q1 evaluation module (EVM) is designed to evaluate the performance of the TPSF12C3-Q1. The solution improves the common-mode (CM) electromagnetic interference (EMI) filter in three-phase AC power systems. The TPSF12C3-Q1 IC provides a low-impedance path for CM noise in the frequency (...)
Evaluation board
TPSF12C1-Q1 single-phase active EMI filter evaluation module
The TPSF12C1-Q1 evaluation module (EVM) is specifically designed to conveniently evaluate the performance of the TPSF12C1-Q1 active filter IC. The solution improves the common-mode (CM) electromagnetic interference (EMI) signature in single-phase AC and 3-wire DC power systems. The TPSF12C1-Q1 IC (...)
TPSF12C3-Q1
Filter-ICs für Stromversorgungen

Automotive common-mode active EMI filter for three-phase systems

Ungefährer Preis (USD) 1ku | 1.104

TPSF12C1-Q1
Filter-ICs für Stromversorgungen

Aktiver EMI-Gleichtaktfilter für Einphasensysteme in der Automobilindustrie

Ungefährer Preis (USD) 1ku | 0.936

Benefits of power-supply filter ICs

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Meet stringent EMI standards

Our AEF ICs sense, process and mitigate EMI by as much as 30 dB, helping you meet CISPR 11, CISPR 32 and CISPR 25 EMI requirements.

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Reduce filter size, weight and cost

Design using up to an 80% lower inductance value using our AEF ICs, resulting in chokes that are half the size, lighter and more cost-effective.

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Extend capacitor life

By shrinking the size of large magnetics with our AEF ICs, you can reduce the amount of generated heat and improve system reliability.

Power trends

Mitigate EMI for increased performance

Comité International Spécial des Perturbations Radioélectriques (CISPR) standards are the global benchmark for limiting EMI in electrical and electronic devices. Our highly-integrated AEF ICs act as capacitive amplifiers, enabling you to significantly reduce emissions while maintaining the same filter size. Meet stringent EMI standards with greater margins using AEF ICs.

Vorgestellte Produkte für low EMI
Neu TPSF12C1-Q1 PREVIEW Automotive common-mode active EMI filter for single-phase systems
Neu TPSF12C3-Q1 PREVIEW Automotive common-mode active EMI filter for three-phase systems

Reduce system size, weight and cost of passive EMI filter solutions and increase reliability

Touch current safety regulations limit the size of Y-rated filter capacitors, resulting in large inductors. Our highly integrated AEF ICs enable you to significantly reduce magnetic components and overall filter size while maintaining a similar level of EMI performance. Ancillary benefits include lower power loss for better thermal management and improved system reliability, easier mechanical packaging design and lower cost.

Vorgestellte Produkte für power density
Neu TPSF12C1-Q1 PREVIEW Automotive common-mode active EMI filter for single-phase systems
Neu TPSF12C3-Q1 PREVIEW Automotive common-mode active EMI filter for three-phase systems

Technische Ressourcen

Technischer Artikel
Technischer Artikel
How a stand-alone active EMI filter IC shrinks common-mode filter size
Power density is a primary metric for applications in highly constrained system environments. Read this paper to learn how you can reduce the volume of the EMI filter components for a cost-effective, high-power density solution.
Video
Video
Getting started with active EMI filter ICs to mitigate common-mode EMI, save space and reduce cost
Learn how our portfolio of stand-alone AEF ICs for CM noise cancellation effectively reduces size, weight and cost in single-phase and three-phase systems compared to a traditional passive filter design.
Ressource
Ressource
How to mitigate common-mode EMI and increase power density in single- and three-phase systems
A compact and efficient design of the EMI input filter is a main challenge in a high-density switching regulator. This paper reviews practical circuit realizations using our AEF ICs for CM noise reduction in AC power systems.