Power Supplies

STMicroelectronics has introduced a demo board that controls two 10A 74V brushless motors with real-time field-oriented control. Called EVSPIN32G4-DUAL, it is built around the company’s STSPIN32G4 motor control system-in-package (9x9mm VFQFPN). Inside that is a 170MHz 32bit Arm Cortex-M4 MCU die (STM32G431) that includes a hardware  CORDIC accelerator for trigonometric calculations, alongside a gate driver die that can sink or ...

A French-Taiwanese collaboration has produced a primary-side IC for 65W ac-dc USB PD adapters. The companies are GaN specialist Wise-integration and mixed-signal IC maker Leadtrend Technology. Together that have created LD966L, a 650V system-in-package multi-mode PWM fly-back converter with Leadtrend’s silicon controller die and an enhancement-mode GaN transistor die from Wise. It comes in an 8x8mm QFN package and its ...

SemiQ will unveil 1,200V silicon carbide half-bridges packaged in S3 modules at PCIM next month. The industry-standard package is 62mm long and 26.3mm high. So far, only the part numbers and basic specs have been revealed: GCMX003A120S3B1-N 600A 3mΩ GCMX005A120S3B1-N 400A 4.5mΩ They will be aimed at induction heaters, welding equipment, uninterruptible power supplies photovoltaic inverters, wind inverters, energy storage, ...

Cosel has introduced a 3.5kW ac-dc 1U rack-mount power supply that will run from three phases between 180 to 528Vac. Two versions are available giving a choice of 48 or 65Vdc output, each trimmable +15% to -50% (24 to 55.2V, or 32.5 to 74.75V). Called HFA3500TF, the enclosed PSUs have three-wire inputs and will run from delta or star power networks. ...

EPC is aiming at satellites with an application note on four-phase dc-dc point-of load converters using multiple 26 x 19mm modules. The note, AN005, picks a radiation-specified current-mode PWM controller from Texas Instruments (TPS7H5001-SP) as a source of PWM waveforms. Each TPS7H5001-SP can produce two pairs of upper and lower PWMs for a total of two phases, and TPS7H5001-SP has ...

Over the last decades, Mean Well has become one of the most recognisable global providers of power supply modules and converters. However, its product range also includes a broad selection of other solutions, such as KNX equipment for building automation systems. The assortment described below includes modules compatible with the KNX system, i.e. a standard applied in home and industrial ...

Microchip Technology has announced a family of radiation-tolerant isolated dc-dc 50W power converters, in nine variants with single and triple-outputs ranging from 3.3V to 28V. LE50-28 power converters are designed to meet MIL-STD-461. The power converters have a companion EMI filter. This series provides flexibility to parallel up to four power converters to reach 200W. “The family of devices enable ...

The latest figures from European Components Distribution (DMASS) show a decline in Q1 of 23.3% with semiconductor revenue dropping by 26.5%. DMASS Europe’s chairman, Hermann Reiter, was keen to stress there is no cause for alarm, saying that this market consolidation was long overdue. “Everyone should have prepared to weather a few quarters of weak bookings and billings,” he said, ...

Silicon carbide chip company SemiQ has begun a known-good-die screening program for SiC mosfets “that delivers electrically sorted and optically inspected SiC technology ready for back-end processing and direct die attachment”, it said. It covers 1,200V 20 (pictured), 40 or 80mΩ mosfet die (119, 63 or 35A at 25°C respectively). “Our known-good-die SiC mosfets provide performance advantages such as near-constant ...

Powerbox is aiming at ground-based defense applications and harsh industrial environments with a 1,000W IP65 ruggedised ac-dc power supply series. ECD1000A comes in a metal enclosure with baseplate conduction cooling and can be used with the plate from -40 to +75°C, derated in some situations. Operation is from 85 to 305Vac (100 to 277Vac nominal) and output is 28Vdc 36A. ...