Power

For an automotive three-phase fan motor driver, Allegro has picked a control algorithm for quiet running in electric vehicles. Called A89307, it uses field-oriented control to drive continuous sinusoidal current to the load. “By design, electric and hybrid vehicles are quieter than traditional models with internal combustion engines, especially when they’re stopped, and drivers are becoming increasingly sensitive to noise created ...

Flex Power Modules has added 30W dual output variants with 4:1 inputs to its PKE range of through-hole encapsulated board-mounted dc-dc converters. PKE532x series has an 18-75Vdc (100V peak) input range suitable for 24, 28 or 48 V nominals PKE332x series input range is 9-36Vdc (50V peak) Both parts are available with either ±12V or ±15V regulated dual outputs, and ...

Hylec-APL has introduced a 24A PCB-mount rising-clamp connector strip that can be snapped into different lengths, describing it as: “particularly useful and cost-effective for R&D projects and short production runs”. Called DTBN7001, the strips are 36 poles long, although can be supplied pre-shortened, and connect to the PCB through 5mm-pitch pins (4.5mm long, 1.3mm diameter hole recommended). Mounted, they sit ...

Hot on the heels of CUI, Trumpower has introduced a brick-style 300W ac-dc adapter built around GaN transistors. This time for medical users. TGM300 series power adapters are Class II for IEC 60601-1-11 home healthcare needs. “The GaN FET line achieves a power density greater than 9W/in3 and has a withstand voltage of 4,000Vac from input-output – 2xMOPP – and ...

The modular and configurable power supplies are designed for integration into mission-critical systems. Among the range available for fast delivery from Farnell are the UltiMod series of UX4 and UX6 AC-DC modular power supplies. They have up to 91% efficiency and low acoustic noise. The UX4 delivers up to 600W and can be populated with up to four power modules. The ...

CUI has turned to GaN transistors to shrink its 300W and 120W mains adapters. “Due to their compact size, these ac-dc supplies are ideal for a variety of portable consumer and industrial applications like sequencing, molecular testing, and livestock tracking,” according to the company. SDI300G-U 300W continuous, 183 x 83 x 35, IEC Class I safety (three-prong C14 connector, pictured) SDI300G-UR ...

Central Semiconductor has created a line novel of zero temperature coefficient current limiting diodes, packaged in DPAK and rated at between 27 and 575mA. Minimum voltages range across 1.5 to 2V – see table. Manufactured in the industry standard DPAK surface mount package, these Industry First devices are “This technology is a distinct innovation in current limiting device technology,” said ...

STMicroelectronics is aiming at lighting with 800V super-junction mosfets for fly-back converters. The transistors are part of the company’s MDmesh K6 series, which it claims have the best Rds(on) x area for similar 800V devices, and enhance several parameters to minimise power losses: “it is especially suited to applications such as LED drivers and HID lamps, as well as adapters, and power supplies for ...

A precious metal recovery company has launched a lithium ion battery recycling service in Sheffield, claiming it to be the UK’s first. “When it comes to recycling the batteries, we know most UK companies export their end-of-life units to Europe and other parts of the world for recycling and material recovery and as a result transport accounts for around a ...

Sungrow has upped the output power of its 1.5kV solar string inverter to 352kW, ~40% more than its previous generation, making is the world’s most powerful at 1500kV, according to Infineon. Why is Infineon talking about other company’s products? Because it is supplying the silicon carbide mosfet modules used inside. “We are pleased to continue our collaboration with Sungrow and leverage ...