Electronic Design

Active Antialias Filter for 24-bit ADC Features Low Distortion, High SNR

For many analog-to-digital converter (ADC) applications, a simple passive resistor/capacitor (RC) filter at the buffer input will provide adequate antialiasing filtering. However, an active filter is ...
Electronic Design

Radical Approach: Active EMI Filter IC Shrinks Higher-Power AC-DC Supplies

A new IC-based approach to EMI filtering in ac-dc power subsystems dramatically cuts inductor size and offers other benefits as well. The nature of the EMI problem in ac-dc supplies and its ...
pv magazine International

Scientists use series active filter to improve power quality of grid-tied PV

Scientists in the Middle East have developed a series active filter to improve power quality in grid-tied PV systems, consisting of an inductor, two capacitors, and four transistor-diode pairs. The ...
EDN

Buck controllers integrate active EMI filter

Optimize the size and EMI of power supply designs with the LM25149-Q1 and LM25149 DC/DC buck controllers from Texas Instruments. Each of these 42V synchronous controllers features an integrated active ...
New Electronics

TI unveils stand-alone active EMI filter ICs for high-density power supply designs

Texas Instruments (TI) has unveiled what it claims is the industry’s first stand-alone active electromagnetic interference (EMI) filter integrated circuits (ICs). Intended to help engineers implement ...
EDN

Half-bridge topology finds applications in high density power converters

Due to the ever increasing demands to drive up DC-DC power converter density, topologies that had previously been used only in high power applications are now finding their way into medium and lower ...