Automotive sensor-less, brush-less controller for 3Φ DC motors

Allegro has introduced a three-phase, sensor-less, brush-less DC motor controller for automotive use with engine cooling fans, and oil and water pumps. Called A4964, it works with external n-channel mosfets and is designed to work in systems where a small microcontroller provides communication to a central  electronic control unit (ECU), plus intelligent fault and status handling. It provides ...

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EuMW: Rohde & Schwarz tests automotive radar

Rohde & Schwarz is developing a range of automotive radar testing equipment. According to the firm, soon-to-be-available is something for analysing radomes, and a multi-dimensional automotive radar echo generator. The AREG100A automotive radar echo generator, previewed at European Microwave Week in Nuremberg, is aimed at end-of-production-line testing for all automotive radar bands  – 24, 76 ...

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Bluetooth 4.2 module works on 3.3mA

Panasonic is claiming a record low power for its latest Bluetooth module, which has a peak consumption of 3.3mA in receive or transmit mode. Supporting mandatory and optional Bluetooth 4.2 features, PAN1760A is intended to add wireless function to IoT, medical and industrial applications. The 15.6 x 8.7 x 1.9mm surface-mount device is based on Toshiba’s ...

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64bit quad-core Risc-V for Linux

SiFive has released an open-source RISC-V architecture 64bit, quad-core application processor aimed at full-featured operating systems such as Linux. “RISC-V is a free and open instruction set architecture [ISA] designed to enable chips across the full spectrum of computing devices, from embedded devices to the data centre,” said the firm. “The release of the U54-MC Coreplex ...

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GaN-on-Si RF power transistor hits 500W for radar

Macom has announced a 500W (peak) GaN-on-Si power transistor for pulsed L-Band airport surveillance radar at 1.2-1.4GHz. Called MAGX-101214-500, greater than 70% power efficiency is claimed during 50V pulsed operation. “Supplied in a small-footprint ceramic flanged package and supporting matching structures that minimise circuit size, MAGX-101214-500 transistors help to enable rugged, compact radar systems underpinned with ...

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Qorvo launches 802.11ax ICs

RF specialist Qorvo has announced an expanded portfolio of 802.11ax products for Wi-Fi gateways, set-top boxes, routers and enterprise access points. “Our  portfolio reduces the need for thermal management, helping our customers design smaller, more attractive products without internal fans, ” says Qorvo’s Cees Links. Qorvo’s bulk acoustic wave (BAW) filters allow full power output ...

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IET and ITN combine to promote engineering

The IET and ITN have launched a news and current affairs-style programme ‘Engineering the Next Generation,’ which explores the challenges, careers and future of modern engineering in the UK. With the government announcing the £229 million of industrial strategy investment, ‘Engineering the Next Generation’ brings to life the opportunities and challenges the sector in the ...

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Omnivision NIR image sensor boosts QE

Omnivision has introduced  near-infrared (NIR) sensor technology called Nyxel which claims  to increase quantum efficiency (QE) up to 3x at 850nm and 5x at 940nm, when previous NIR-capable sensors. These improvements in NIR sensitivity enable the image sensor to see better and farther under the same amount of light, extending the image detection range. Conversely, to match ...

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Dc-dc converter takes up to 60V in and makes down to 0.8V, at 10A

Vishay has announced buck converters running from 4.5-60V and supplying, depending on version, between 2 and 10A. Inside the family are a pair of n-channel trench mosfets and a controller, all in a 5x5mm MLP55-27L package. The devices are: SiC464 (2A), SiC463 (4A), SiC462 (6A), and SiC461 (10A). Adjustable output voltage is 0.95xVin down to ...

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