Alpha and Omega Semiconductor has released a 7A 23V USB Type-C protection and reverse-blocking switch IC. Dubbed AOZ1377DI, is can be used in both Sink and Source applications and it “offers features that significantly reduce voltage drop and power loss compared to back-to-back p-channel devices”, promises the company. Instead it uses a pair of internal drain-to-drain n-channel mosfets, whose gates ...
Tag Archives: power
700W/channel Class-D audio amp design with GaN output
EPC has used GaN transistors to create a high-power Class-D two-channel audio power amplifier design. Instantiated in evaluation kit EPC9192, it is capable of pushing 700W/channel into 4Ω (or 2Ω) or 350W/channel into 8Ω. Bridging the two channels results in 1.4kW drive into 4 to 8Ω. Key components, per channel, are a pair of 200V EPC2307 GaN transistors on a ...
Capaldi is chair of UK power electronics network
Professor Mike Capaldi, dean of innovation and business at Newcastle University, is to be the Chair of UK power, electronics, machines and drives (PEMD) manufacturing network DER-IC. Funded by Innovate UK, the network offers access to equipment, facilities and expertise from the PEMD manufacturing supply chain. Capaldi is returning to the network having lead the initial funding application and development ...
BASF picks 6MWh sodium-sulphur battery for solar power back-up
BASF Schwarzheide has installed a 1MW 5.8MWh sodium-sulphur battery to increase the amount of energy it can use from the solar park at its manufacturing site in Lusatia Germany, where it produces electric vehicle battery materials. “The stationary energy storage system is another step towards increased sustainability in battery production for electric vehicles,” said company v-p of battery metals Daniel ...
Wurth advocates press-fit PCB connections for high-voltage vehicle power distribution
Würth Elektronik is promoting PCBs with press-fit power connectors as the interconnection technology of choice for high-voltage power distribution in mobile machines and commercial vehicles. It has a design service for vehicle companies seeking custom power distribution units that handle between 60 and 1,000V “that are compact, robust and can be flexibly configured”, it said. “Press-fit technology makes it possible ...
High power battery connectors are polarised and sealed to IP67
Weidmuller has announced a series of battery connectors and battery connector cable assemblies. They are “engineered to handle high currents” and “designed to withstand harsh environmental conditions”, according to the company. Connectors for cables from 16 to 95mm2 are available, with contacts made from copper alloy finished with silver and, approved according to UL 4128. Predicted mechanical connection life, without ...
GaN, SiC and Si squeeze 4.5kW out of server PSU
Navitas Semiconductor has demonstrated a 4.5kW 54V server power supply using both GaN and SiC transistors. Claimed density is “over 130W/in3 with efficiency over 97%. The architecture replaces the standard four diode bridge (and boost power factor correction) at the front end with an active all-transistor circuit – a multi-phase totem pole power factor corrector. While often called ‘bridgeless’ because ...
APEC: 1mΩ 100V GaN transistor has dual-side cooling
EPC is claiming “the lowest on-resistance GaN FET on the market” for its 1mΩ 100V EPC2361, which comes in a 3 x 5mm QFN package with top and bottom cooling. 1mΩ is at 50A 25°C with 5V on the gate, and rises to ~1.8mΩ at the max operating temperature of 150°C (minimum is -40°C). The preliminary data sheet has no ...
Power module revenue on a 12.1% CAGR 2023-29
Power module revenue will grow from $8 billion in 2023 to $16 billion by 2029 representing a 12.1% CAGR between 2023 and 2029, according to Yole Group. The power module packaging costs fully depend on the packaging materials, such as die-attach and ceramic substrate materials, and the package size. In 2023, it represented a $2.3 billion market in 2023, with ...
ISSCC Piezoelectric energy transfer in dc-dc converter
Despite there potential efficiency, piezoelectric power converters are a technology that has never become popular, even though the power transfer component is thin and flat, instead of boxy like an inductor, and piezoelectrics are quick and simple to make – much like a ceramic capacitor. The flip-side are the disadvantages, warranting a mushrooming component count to temper them. Enter the ...