For SMPS designs in industrial applications, recent technology trends include the need for high efficiency and power density as well as increased bus voltages. This triggers the need for power devices with 650 V breakdown voltage. With its 650 V CoolMOS CFD7 product family Infineon Technologies AG meets these demands. The devices are best suited for […]
Power Electronic Tips
Small coiled metal-alloy power inductors boast high saturation current, high permeability, low resistance
Würth Elektronik announced WE-MAPI, one of the world’s smallest coiled metal-alloy power inductors. It is characterized by a high saturation current, high permeability, and low resistance. The most important area of applications for the WE-MAPI range are high-performance DC/DC converters with a high efficiency for switching frequencies of up to 20 MHz. New additions to […]
4-channel, ultra-low TVS optimized for high-speed line protection
Alpha and Omega Semiconductor Limited introduced the AOZ8S212UD4, AOZ8S321UD4, and AOZ8S306BD4, a series of Transient Voltage Suppressor (TVS) for high-speed line protection using the best-in-class low capacitance TVS platform. The new products are ideal for Electrostatic Discharge (ESD) protection for laptops, televisions, and other electronic devices. The low capacitance TVS series is optimized for high-speed line protection including […]
Navigating new safety standards for power supplies
More stringent requirements are scheduled to soon emerge from standards bodies that will affect a wide range of manufactured equipment. Sebastian Fischer, Andreas Flũhlern • Traco Electronic AG Standards committees are working on a new, common standard for safety requirements governing audio/video, information and communication technology–the IEC/EN/UL 62368-1. The first version of IEC 62368-1 was […]
Formula E batteries, software and technology transfer – Virtual Roundtable (part 1 of 2)
Moderated by Jeff Shepard EE World has organized this “virtual roundtable” bringing together experts in Formula E racing technology to share with you their experience and insights into batteries, software, and potential technology crossovers between Formula E and conventional electric vehicles. Joining us for this virtual roundtable are: Masayasu Yoshida (MY), Vice President, Automotive Systems […]
Silicon half-bridge driver ganged with GaN transistors for faster charging
STMicroelectronics has unveiled MasterGaN, the world-first platform embedding a half-bridge driver based on silicon technology along with a pair of gallium-nitride (GaN) transistors. The combination will accelerate the creation of next-generation compact and efficient chargers and power adapters for consumer and industrial applications up to 400W. GaN technology enables these devices to handle more power even as […]
Triple-isolated ac/dc industrial supplies output 300 W
Cosel Co, Ltd announced the expansion of its leading RB series, designed for mid-size robotics and factory automation, with the addition of a 300W version. The RBC300F is an open-frame, configurable AC/DC power supply with triple outputs tailored for robotic controllers and factory automation. Based on a unique concept, the Cosel RBC300F series offers three […]
500 W, quarter-brick digital dc-dc converter saves board space in RFPA and 5G apps
Flex Power Modules announces the BMR683, a new series of digital PMBus DC/DC converters primarily aimed at radio frequency power amplifier (RFPA) applications and infrastructure for the 5G telecom market. The new converter family provides indispensable monitoring functionality and control of the feedback loop to help stabilization. The high-density BMR683 converter is introduced in the […]
Coming: New safety ratings for power adapters
Prepare yourself for the updated standards about to take hold in power equipment that includes external adapters. Ron Stull • CUI Inc. A power adapter is a barrier between lethal ac mains voltage and the dc power line for end equipment. Different environments, however, demand different adapter construction to meet safety levels. For example, domestic, […]
Why electrolytic capacitors blow up
Electrolytic capacitors have a reputation for failing spectacularly when mistreated. Leland Teschler • Executive Editor Pop open a common LED bulb and you’ll often find an electrolytic capacitor occupying a place in the input from the ac line. Though illumination-grade LEDs generally have lifetimes exceeding 10,000 hours, the electrolytic caps in their base may not […]