Power

Microchip has turned to silicon carbide to create a bi-directional electric vehicle on-board charger design for 400V or 800V batteries. There are two halves: a 7.6kW bi-directional two-phase interleaved totem-pole power factor corrector, and an 11kW dual full bridge transformer-coupled bi-directional dc-dc converter. “These two designs work together,” Microchip told Electronics Weekly. “At PCIM we showed both operating in bi-directional ...

Infineon has announced a flurry of new power products as a prelude to PCIM in Nuremberg next week, the latest of which is a family of 600V super-junction mosfets. Its eighth generation, “the devices combine the best features of the 600V CoolMOS 7 series and are the successors to the P7, PFD7, C7, CFD7, G7 and S7 product families”, according ...

Transistor maker Cambridge GaN Devices has signed a memorandum of understanding with Taiwan’s Industrial Technology Research Institute to develop USB-PD adaptors as well as to share international market information, visit to potential customers and promote the PSUs. The agreement covers 140 – 240W, >30W/in3, ac-dc power adapters for e-mobility, power tools, notebooks and phones (prototype GaN-based USB PD adapter right) ...

Alpha and Omega Semiconductor has designed an asymmetrical half-bridge mosfet pair in a 3.5 x 5mm DFN package for high-current dc-dc converters. Rated at 30V, AONG36322 has a 83A <4.5mΩ high-side transistor and a 163mA <1.3mΩ low-side transistor with 10V gate drive. On-resistances rise to <8mΩ and <1.75mΩ respectively with 4.5V gate drive. “AONG36322 [is] ideal for a new generation ...

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 ...

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. ...

Fluke is aiming at mid-sized solar power installations with PVA-1500HE2, an analyser and I-V curve tracer rated at 1.5kVdc and 30A. Update: Later in the year, Fluke added a 1,500V solar multimeter and a matching 60A wireless current clamp “Similar products can often struggle to obtain accurate readings due to high capacitance levels and are incapable of recording data continuously ...

Samsung is aiming at electric vehicle on-board chargers with a 1,000v 22nF multi-layer ceramic capacitor. CL32C223JIV1PN# (yes, there is a # in the part number) is aimed at CLLC resonant power supply topologies and is constructed with a COG dielectric. Operation is across -55 to +125°C and it has a ±5% tolerance. Packaging is a 2.5mm tall 3.2 x 2.5mm ...