Mazda and Rohm have signed a deal to develop GaN-based automotive power electronics. “Compared to conventional silicon power semiconductors, GaN can reduce power conversion losses and contribute to the miniaturisation of components through high-frequency operation,” according to Rohm. “Both companies will collaborate to transform these strengths into a package that considers the entire vehicle, and into solutions that innovate in ...
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The latest Electronics Weekly product news, ranging from Analogue and Asics to Software and Test.
Farnell signs global distribution deal with MCC
Semiconductors from Micro Commercial Components, or MCC, are now available from Farnell, following a worldwide distribution agreement. MCC, headquartered in California, brings a range of semiconductors, including diodes, mosfets, IGBTs, SiC devices, protection devices (TVS and ESD protection), voltage regulators, transistors and power modules. The company is bringing over 100,000 semiconductor products to Farnell, of which 25% are automotive-grade components. ...
IPC praises President Trump for defence industry support
The IPC, the industry association for printed circuits and electronics assembly chose the anniversary of President Biden issuing the Presidential Determination 2023-06, to lament the lack of investment in the US PCB industry. The Presidential order, signed in March 2023, invoked the Defense Production Act (DPA), which was designed to stimulate US investment in PCB manufacture and ‘related technologies’. According ...
Good free book on DC drive system selection
Maxon has published a handbook about DC drive system selection. “The book includes a six-step flowchart, providing a clear path to select the drive system specific to application requirement,” said the company. “The chapters dedicated to each drive system component also offer the formulae required to select the right product at each stage. Illustrations and descriptions of the variables bring ...
25Top/s DX-M1 NPU expected in Q2
DeepX is to start production of its DX-M1 neural processor unit IC in the second quarter of this year, according to the company, which claims for it “the highest power-efficiency and performance efficiency in the world”. The company has published ResNet-50 figures in support of these claims: >10Top/s/W and 60frame/s/Top/s. Total capability per IC is 25Top/s. It is due to ...
MEMS micro-tweeter loudspeaker works from 1Vrms
xMEMS has created a micromachined silicon earbud loudspeaker that does not need a booster amplifier. Instead, Lassen, as it will be know, will run from a standard 1Vrms audio signal, delivering up to 115dB SPL across 6kHz to 20kHz – making it a tweeter. It measures 3.2 x 5 x 1.15mm, and is aimed at two-way ‘true wireless stereo’ (TWS) ...
Runnier silicone potting gels for faster filling
Wevo has introduced a series of runnier silicone potting gels to fill spaces more quickly. “Whereas most standard products have viscosities in the region of 1,000mPa·s, the two-component silicone gels in the Wevosil series offer around 500mPa·s,” according to the company. “That not only enables faster filling of complex component geometries, it also improves air bubble elimination with electrical encapsulation ...
10 x 12mm 650V mosfet hits 3.74ΩnC and 8ΩpF
Vishay is claiming industry’s lowest Rds(on).Qg and Rds(on).Co(er) figures-of-merit for its latest 650V super-junction mosfet. The typical figures are 3.74ΩnC and 8ΩpF respectively. SiHK050N65E is an n-channel device aimed at power factor correction and subsequent dc-dc converter blocks up to 6kW. Typical on-resistance is 48mΩ (25°C, 10Vgs) and gate charge can be 78nC (16A, 520V, 10Vgs). “The device addresses 200 ...
Thermistor for EV transmissions
TDK is aiming at oil-cooled electric vehicle power trains with a immersion thermistor. “Oil cooling is anticipated to become the dominant temperature management method in the electric drivetrain of EVs,” it said. Called B58101A0851A000, and is designed to push into the oil cavity from the outside through a hole. From end to end it measures ~43mm and it is “highly ...
5mm tall dc-dcs convert 48V to 12V at up to 2kW
Vicor is aiming at 48V to 12V conversion with a family of surface-mount dc-dc converter modules ranging from 750W to 2kW. “Power delivery networks are making a decisive shift from 12V to 48V architectures to take advantage of higher efficiency,” according to the company. “The benefits of using 48V have been illustrated in high-performance computing, automotive and in many other ...