Power Supplies

Anglia Components has signed a distribution agreement with GaN-based power management specialist,  EPC (Efficient Power Conversion), covering the UK and Ireland. EPC’s enhancement mode GaN (eGaN) FETs and ICs will be part of Anglia‘s portfolio, which includes mainstream power technologies, including silicon mosfet and SiC as well as GaN.  The distributor said that the new signing enhances its range particularly ...

Cosel has announced a pair of 2 x 3inch format medical power supplies: UMA30F and UMA60F, delivering up to 30, or up to 60W, respectively. Both handle inputs across 85 to 264Vac. At high input voltages, efficiency can be as high as 91%. Sizing is ~51 x 76 x 22mm for UMA30F, increasing to ~24mm tall for the ..60F. These ...

TI announced a co-packaged 650V GaN half bridge and driver at APEC in Florida this week, intended for use in active-clamp fly-back dc-dc converters delivering less that 75W. Called LMG2610, the IC includes a pair of GaN transistors in a half-bridge, gate drivers, a bootstrap diode and a high-side gate-drive level shifter, all in a  9 x 7mm QFN package. ...

Power Integrations is aiming at industrial and automotive power supplies up to 100W, by building 900V GaN transistors into its InnoSwitch3 fly-back switcher family – something it announced at APEC in Florida. Previously 750V was the highest rating amongst the GaN members of this family. There are two product lines now with 900V gallium nitride options: The AEC-Q100-qualified InnoSwitch3-AQ family ...

P-Duke has developed a series of 500W conduction-cooled PCB-mount ac-dc power supplies in an encapsulated full-brick package (117 x 61 x 12.7mm thick (+4mm pins)). TBF500 PSUs are up to 93% efficient and operate from 85-264Vac (with derating below 100V), with the baseplate across -40 to +105°C, and up to 5,000m altitude. No-load consumption is 600mW. Depending on device, the ...

Murata has created a 1210 (3.2 x 2.5 x 2.5mm) wide-band wire-wound chip common mode choke that will attenuate noise on 1.2A automotive supply rails at over 1GHz. “It is of particular value when addressing the power supply line noise issues now occurring as driver assistance hardware connects with wide frequency band sensors and imaging equipment such as radar and ...

Silanna Semiconductor has released a superjunction mosfet-based reference design for a 65W universal (90 – 264Vac) USB Type-C output mains power power adaptor. Called RD-35, it combines Silanna’s SZ1131 ac-dc active clamp fly-back controller with its SZPL3102A 65W synchronous buck converter and a Hynetek HUSB350 USB PD controller. “This allows a single base charger design to be deployed across a ...

Toshiba is aiming at 60kHz power factor correction stages with a 650V 60A reduced switching loss IGBT. “Using previous generation IGBTs, the PFC stage of air conditioners would have an operating frequency below 40kHz,” it said. The new device, GT30J65MRB, comes in a TO-3P(N) and typically dissipates 350μJ when turning off at 175°C “an improvement of at least 40% when ...

Analogue devices has created a fast-responding low-noise low drop-out linear regulator, digitally-programmable to output various voltages between 500mV and 4.2V at up to 3A. Input range is 600mV to 5.5V. Dubbed LT3073, its output, set through three tri-level pads, can be: in 50mV increments from 500mV to 1.2V, in 100mV increments from 1.2 to 1.8V, and then 2, 2.5, 3, ...

Bourns is aiming at high power density forward converters with a series of planar construction transformers. Called the PLN0xx-ED21 series, of them the company said: “Planar-style transformer components offer efficiency and power density advantages over conventional wire-wound transformer designs due to significantly reduced ac resistance losses.” Ratings vary across 48 to 70W with inputs from 33 to 57Vdc when switching ...