Power Supplies

Infineon Technologies is to integrate 600 and 700V GaN power hemts alongside gate driver chips inside single packages, in 5 x 6mm or 6 x 8mm SMD packages. IGI70NxxxA2xS is to be a 700V range that combines a single GaN transistor with a single-channel driver in 5 x 6mm PQFN with with 140 to 500mΩ options (IGI70NxxxA2PS), or 6 x ...

Nexperia has created a pair of 17mΩ 13.5A resettable electronic fuses for 12V hot-swap applications in 3 x 3 x 0.75mm DFN3030-10 (SOT8037-1) packaging. NPS3102A and NPS3102B operate with 9 to 18V on the input (21V abs. max) and can limit output current to anywhere between 2 and 13.5A range, programmed using a resistor – the voltage across which can ...

Magnix has designed a range of batteries for electric aviation. The first product of the line, Samson300, is focussed on maximum energy density, according to the company, achieving 300Wh/kg. A cycle life of over 1,000 full-depth discharge cycles is claimed. “Patented safety technologies include cell level protections from thermal runaway and ability to store batteries for long periods at zero charge,” ...

XP Power has introduced a range PCB-mount PSUs that will run from 85 to 528Vac. There are 5W (EHL05) and 20W (EHL20) types, all single output, with 3.3, 5, 9, 12, 15, 24 or 48Vdc outputs depending on version. There is a choice of open-frame or encapsulated (see photo) packaging, and efficiency is typically between 82 and 88% – 3.3V ...

Texas Instruments has used integrated moulded magnetics to shrink the size of six multi-amp dc-dc converters – five buck types and one boost. The shrunk versions are branded ‘MagPack’ by the company, which will not reveal details of the construction except to say that the control IC and inductor coil are stacked before magnetic material for the inductor is over-moulded ...

TDK-Lambda has announced a series of rugged conduction-cooled dc-dc buck converters rated up to 750W. They come in a five-sided conduction cooled aluminium housing that measures 38.1 x 49.5 (39.4) x 13mm including (ignoring) mounting tabs. None are isolated and all have a single regulated output, remote on-off, remote sense and output trim – through a standard 1/16th brick through-hole ...

Recom has created a 15W ac-dc power supply range that meet a wide range of international specifications including those for medical use. RACM15E-K supplies come in 80 x 23.8 x 22mm open-frame form with Molex connectors (photo below), or in a 83 x 26.4 x 29.5mm IP20 enclosure with push-in terminals and a DIN rail clip (right) – they are ...

Subtle electrolyte changes can maintain power density in electric aviation batteries, according to the University of Michigan. While extended capacity retention is key for vehicle traction batteries, electric aviation demands power density retention from its batteries. “Both takeoff and landing require high power, and landing is more challenging because you’re not fully charged,” said Michigan engineering professor Venkat Viswanathan. “To ...

Puls has introduced a range of DIN rail electronic circuit breakers for 24V loads from 90 to 480W. “With a width of only 22.5mm, PISA-M is the smallest four-channel electronic circuit breaker in the market,” according to the company. “PISA-M features a digital coded interface providing a way to remotely control the devices and to monitor the operational system status. ...

Rohm has released a line of 16bit microcontrollers for power supplies with hybrid analogue-digital control loops, plus an evaluation board with software as a design stepping stone. “In recent years medium power power supplies are required to provide a level of reliability and precise control that is difficult to meet with analogue-only configurations,” said Rohm. “On the other hand, while ...