Power Electronics / Power Management


EMC filters for power supplies

25 February 2015 Power Electronics / Power Management

In addition to its own range of two-line filters for its power supplies, TDK-Lambda is offering complementary EPCOS two-line EMC filters of the SIFI series and EPCOS IEC inlet filters.

Professional high-end EPCOS EMC filters include the SIFI product line, a standardised modular system based on five product lines with different insertion loss characteristics and terminal styles, including a medical version with low leakage current. These filters offer very good suppression of symmetrical and asymmetrical interference and come in F, G and H variants for normal, enhanced and very high insertion loss characteristics at 50 Ω impedance.

The medical versions also boast extremely low leakage current of 2 μA for applications such as ultrasound devices, X-ray systems, or other medical diagnostic devices where low leakage current is a critical factor. Applications for all three of the important approvals, namely UL, cUL and ENEC, have been submitted.

Also offered is the proven B84771 series of EPCOS IEC inlet filters with two new series. The B84773 series features an integrated fuse, while the B84776 series has both a switch and a fuse. The power switch of the B84776 series is of bipolar design and thus separates the phase and the neutral conductor. The three series offer an extended range of rated current from 1 to 20 A at 250 V d.c./a.c. and a climatic category (IEC 60068-1) of 25/85/21. Additionally, the new IEC inlet filters are available in a medical version with low leakage current of 2 μA.

Designed for a maximum ambient temperature of 85°C, all IEC and SIFI filters are RoHS-compatible with UL/CSA approval. ENEC approval is already available on the B84771, and pending on the B84773 and B84776.

For more information contact Tobie Muller, Accutronics, +27 (0)11 782 8728, [email protected], www.accutronics.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

The role of bidirectional charging in the evolving energy landscape
Avnet Silica Power Electronics / Power Management
As reliance on renewable sources like wind and solar continues to grow, the need for efficient energy flow and storage solutions has become more critical than ever.

Read more...
How to calculate a buck converter’s inductance
Power Electronics / Power Management
In the buck circuit, the inductor design is a key element that is closely related to system efficiency, the output voltage ripple, and loop stability.

Read more...
TDK expands programmable PSU series
Accutronics Test & Measurement
With a 3U high chassis, the GAC and GAC-PRO provide extremely high-power density for a fully featured programmable AC power source.

Read more...
High-current EMI filters
Accutronics Power Electronics / Power Management
TDK has introduced 20 and 40 A, 80 V DC board-mount EMI filters, reducing differential mode conducted emissions for switching power supplies with high input current requirements.

Read more...
Isolated SMD DC-DC converters
iCorp Technologies Power Electronics / Power Management
MinMax has launched a series of isolated SMD DC-DC converters, the MSU01 series delivering 1 W, while the MSU02 series offers 2 W output.

Read more...
Analysing magnetic fields
Accutronics Test & Measurement
The engineers at Narda Safety Test Solutions have achieved a breakthrough in isotropic measurement and analysis of low-frequency magnetic fields in the form of their latest digital H-field probe.

Read more...
Is RFoIP technology the future for signal transportation for Satcom applications?
Accutronics Editor's Choice Telecoms, Datacoms, Wireless, IoT
RFoF technology continues to be used for successful IF signal transportation in the ground segment and there is widespread belief that it will be for some time to come, especially for critical communications applications.

Read more...
Next-gen power meter
Electrocomp Express Power Electronics / Power Management
The VT-PWR-LV is a next-gen Vista Touch power meter from Trumeter for single, split, and three-phase systems.

Read more...
Advanced PMIC for high-performance AI applications
ASIC Design Services Power Electronics / Power Management
Microchip Technology has announced the MCP16701, a Power Management Integrated Circuit (PMIC) designed to meet the needs of high-performance MPU and FPGA designers.

Read more...
New SiC power MOSFET
Future Electronics Power Electronics / Power Management
STMicroelectronics’ SCT012H90G3AG is a robust, automotive-grade SiC MOSFET, engineered for demanding power electronics, featuring a 900?V drain-source voltage and exceptionally low on-resistance of 12?mO at 60?A.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved