Switched capacitors (SCs) are highly-versatile circuit elements that can be used to provide various functions, ranging from micro-scale implementations embedded in integrated circuits (ICs) or designed into wearables and other small devices, to a variety of power conversion applications, up to grid-scale systems. This FAQ series will explore the versatility of switched-capacitors. Following this initial […]
filters
Noise suppression filters optimized for in-vehicle power-over-coax apps
TDK Corporation announces the launch of the MDF1005 series of noise suppression filters for in-vehicle PoC, used in applications such as ADAS circuits, BUS lines, telematics units, and more. Mass production will begin in December 2020. The products in the MDF1005 series have good DC superimposition characteristics with impedance within the PoC high-frequency band, between […]
How to design modular dc-dc systems, Part 2: Filter design
The previous tutorial in this series highlighted the performance, flexibility, and speed benefits of using power modules to design power systems then provided an overview of the modular design process. A modular design strategy is powerful, but it requires support circuitry in the power delivery network (PDN) to form a complete power system. This second […]
Miniature common mode filters combine wide differential bandpass with ESD protection
Nexperia, the expert in essential semiconductors, has announced its new PCMFxHDMI2BA-C, a combined, highly efficient, common mode filter and ESD protection device with the widest 10 GHz differential bandwidth. It is suitable for the latest HDMI 2.1 standard up to 12G FRL, where eye-diagram tests were passed even with “worst cable model”. This highly integrated PCMFxHDMI2BA-C device provides excellent common […]
Current-compensated dual choke filter inductors handle high currents
Bourns, Inc.introduced the Model DR334A Line Filter Series. These current-compensated dual choke filter inductors feature higher current capability than typical standard signal line common mode chokes, as well as high stray inductance and differential mode noise rejection. These capabilities make the Model DR334A series ideal line filter solutions for consumer, industrial and other market power […]
Compact, single-phase EMC block filter meet space and performance constraints
SCHURTER completes its portfolio of single-phase EMC filters with its FMBB EP series, launching a new generation of ultra-compact filters with high-performing attenuation. The new double-stage filter family is more powerful than typical filters, meeting the space constraints and performance requirements of today’s state-of-the-art electronic devices. Top-quality components, including right-sized film capacitors and chokes with […]
Compact multilayer common-mode choke targets WiFi frequency range
With WE-CCMF, Würth Elektronik offers a compact multilayer common mode choke in a 0504 package which is characterized by high common mode attenuation in the WiFi frequency range (> 30 dB @ 2450 MHz). WE-CCMF is the solution to improve the sensitivity of Wireless LAN and Bluetooth enabled devices (notebooks, laptops, routers, IoT devices) that […]
Three-phase built-in filter with neutral line suited for tight spaces
FMAD CP is the latest 1-stage filter family for 3-phase systems, equipped with neutral line. The extremely compact and high-performance filters are ideally suited for use in tight spaces commonly found in today’s machinery. The new filter family is ideally suited for devices with high EMC loads at low or medium power. Typical applications include […]
High-current noise suppression filters optimized for smart-speaker apps
TDK Corporation expanded the MAF series of noise suppression filters with two new MAF1608GAD-L types that are designed for audio lines. The new multilayer filters have a compact footprint of just 1.6 x 0.8 mm and an insertion height of just 0.6 mm and are able to suppress noise at cellular frequencies from 1 GHz […]
Common-mode choke coil for Automotive Ethernet handles 150 C temperatures
Murata Manufacturing Co., Ltd. announced that the DLW32MH201YK2, a common mode choke coil (CMCC) for Automotive Ethernet (100BASE-T1). Withstanding extreme temperatures ranging from -55 to +150ºC, makes this product a world first for its type. Mass production of this product will start in December 2019. In recent years, as cars have been equipped with more […]
