Power
Automotive linear regulator IC features built-in diagnostics
The A4481 from Allegro MicroSystems Europe is an AEC-Q100 qualified linear voltage regulator IC with built-in control, diagnostics and protection features that address the requirements of automotive applications. The device regulates input voltages between 5.25 and 40V down to an output voltage of 5V ±1%, and is able to supply up to 50mA of load current.
Programmable attenuators cover broadband frequencies of up to 40GHz
Fairview Microwave announces the release of their digitally controlled programmable attenuators with performance up to 40GHz and up to 60dB attenuation range with 0.03dB minimum step size. These programmable attenuators are commonly used in electronic warfare, military and space communication systems, radar and test and measurement applications.
DC/DC converters feature 8:1 input in a half brick case
MTM Power, the specialist for individual power supplies, offers in its programme DC/DC converters in a brick case with an 8:1 input (9-75V). The PMD150 UHB8 has an output power of 150W and is available with the output voltages of 5, 12, 15, 24, 28 or 48 V.
In-vehicle USB battery chargers save tooling costs
Pre-assembled, off-the-shelf USB battery chargers for multiple in-vehicle locations from Molex are now available from TTI Europe. The parts deliver 5V and 1.5A, are compliant with battery charging (BC) 1.2 standards and help save tooling and engineering costs. The parts have been designed for existing rocker-switch panels for commercial vehicles and are compatible with Molex’s automotive I/O connectors.
Energy recovery helps return power to its source
In the latest addition to its power system automatic test equipment (ATE), Intepro has announced the release of the ELR 5000 modular, programmable DC load. Housed in a 6U, 19” rack enclosure, the ELR 5000 can accommodate up to ten completely self-contained, fully programmable DC load modules with 320W nominal power each.
Step-down regulator increases efficiency
Linear Technology Corporation has introduced the LTC7130, a constant frequency peak current mode synchronous step-down DC/DC converter with temperature compensated ultra-low DCR current sensing and clock synchronisation. The device’s architecture eases compensation and offers the ability to directly parallel multiple ICs for higher current capability.
Striking a balance between flexibility, performance and cost
Designed to provide a balance between electrical performance, rugged mechanical design and cost, while providing flexibility for power system engineers, Murata Power Solutions has introduced the BPM15 Series of isolated DC-DC power modules, which can deliver 15W of isolated output power from ±5V, ±12V and ±15V outputs.
Method for batteries use organic electrode materials
With people wanting to use smaller electronic devices, smaller energy storage systems are needed. Researchers of Aalto University in Finland have demonstrated the fabrication of electrochemically active organic lithium electrode thin films, which help make microbatteries more efficient than before. Researchers used a combined atomic/molecular layer deposition (ALD/MLD) technique, to prepare lithium terephthalate, a recently found anode material f...
Changes in healthcare needs impact on power designs
Dave Wellman, Sales Manager, Gresham Power Electronics, explains how foundational technologies such as power supplies, which are a vital component in all medical electronics, can be overlooked in a fast moving industry sector.
Sine-waving the route to lower HV-IPD power losses
Consumers have become used to improved energy efficiency and performance of appliances built with variable-speed drives. Georges Tchouangue, Toshiba Electronics Europe believes further demands can be met using sinusoidal current control