The conduction cooled TDK-Lambda PFH500F-28 ac-dc power modules are rated at 28 V 504 W, feature a compact 4×2.4-in footprint and have optional read/write programming and communication through a PMBus interface. These third-generation power supplies are candidates for a variety of applications including COTS (Commercial-Off-The-Shelf), power amplifiers, LED displays and test equipment. The PFH500F-28 series […]
DC-DC
Low-noise 400-mA low-dropout linear regulator targets always-on automotive modules, noise-sensitive loads
The STMicroelectronics LDO40L 400mA low-dropout linear regulator delivers quiet and efficient power for always-on automotive modules and noise-sensitive loads. With 45µA quiescent current, the AEC-Q100 qualified LDO40L reduces the demand on vehicle batteries to run loads such as body and interior functions that are active when the ignition is off. In addition, the device can be disabled […]
First USB-C combo buck-boost battery charger for mobile computing systems
Renesas Electronics Corporation introduced the industry’s first USB-C buck-boost battery charger to support both Narrow Voltage Direct Charging (NVDC) and Hybrid Power Buck-Boost (HPBB) charging for notebooks, ultrabooks, tablets, and power banks using the reversible USB Type-C connector cable. Through firmware control, the ISL9241 can switch between NVDC and HPBB modes, providing a low-cost and […]
Integrated motor controller and driver for 2-phase stepper motors up to 3.5A RMS
TRINAMIC Motion Control now announces the TMC5161. This cDriver solution is an easy to use building block with a powerful integrated MOSFET driver stage and complete motion control features, including innovative current regulation. Designed with ease of use in mind, the powerful chip can be set up and evaluated easily using Trinamic’s free, easy to […]
Power Electronics Top Talks in November on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com Dell power supply – I got this PSU from one of my colleagues and did a quick inspection for the faults in […]
GaN FETs boost efficiency in electric vehicle chargers
The role gallium-nitride FETs play in the design of an EV charging circuit help illustrate how these wide-bandgap semiconductors facilitate energy efficiency. FENG QI, TRANSPHORM THE PHASE-SHIFT FULL BRIDGE (PSFB) is a classic topology for applications that must accommodate a wide range of operating voltages, as with battery chargers. A PSFB converter generally uses four […]
Isolated DC-DC converter targets data center apps with 70-A output
Flex Power Modules introduces its first generation of DC products to address the growing need for higher energy efficiency levels in data center and cloud computing infrastructure. The new BMR481 DC-DC converter has an input range of 40-60V targeting 48-54V nominal supplies, and a programmable 0.5-1.35V output. The 12 x 27.7mm footprint ‘main’ module provides […]
Optimizing the energy efficiency of converters and controllers
Here’s how to evaluate energy efficiency associated with components that make up widely used power conversion circuitry. FRANK DE STASI, MATHEW JACOB, TEXAS INSTRUMENTS INC. IN SOME WAYS, selecting a module, converter or controller for power conversion resembles deciding whether to take a flight, board a train, or drive from point A to B. Once […]
12:1-input quarter-brick dc/dc converters key on railway apps
Two 40-W and 60-W dc/dc converter series come in quarter-brick packages with an ultra-wide input voltage range of 14 to 160 Vdc making them a good candidate for railway rolling stock applications and high voltage battery systems. The 12:1 input voltage range of RECOM’s RP40Q-RUW and RP60Q-RUW series covers all input voltages from nominal 24 […]
Step-down regulator module targets data center apps with on-board memory
Analog Devices, Inc. (ADI) expanded its suite of Power by Linear µModule regulators with the LTM4700 step-down DC/DC power regulator, which combines the highest power in its class with the energy efficient performance needed to reduce data center infrastructure cooling requirements. Configured as dual 50A or single 100A configuration, the new power µModule’s innovative package technology enables an increasing […]