Author Archives: steve bush

SMD toroidal common-mode chokes work up to 10A

Coilcraft’s surface-mount common-mode chokes include 16 sizes for power line circuits up to 10A, suppressing noise up to 100MHz with >40dB attenuation in some cases. Consumer electronics and industrial applications are foreseen. “All EMI chokes feature a low-profile, toroidal construction in a surface-mount, magnetically-shielded package with footprints as small as 13 x 13 mm,” said ...

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RS cycle ride raises £230,000 for cancer charity

Staff from RS Components have completed an epic charity cycle ride, covering 1,100 miles from Aberdeen to London, raising £230,000 for Children with Cancer UK. . More than 60 employees took part in the ‘Tour de Branch’, which called at the firm’s 16 UK branches over 12 days, finishing at its London HQ where participants were greeted ...

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PCIM: Rohm’s 1.2kV IGBTs drop only 1.7V

Rohm’s automotive grade 1,200V IGBTs are aimed at inverters used in electronic compressors and for switching positive temperature coefficient (PTC) heaters. RGS series parts are AEC-Q101-compliant and come in 1.2kV and 650V variants. “Increasing the number of electric vehicles advances the need for electric compressors often driven with IGBT’s,” according to Rohm, and “the demand ...

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Aceinna offers AMR current sensors for power

Massachusetts-based Aceinna has a range of current sensor chips based anisotropic magnetoresistive (AMR) technology, using an insulating substrate with 4.8kV isolation. Called MCA1101, the chips measure bi-directional current, both ac and dc signals, with 1.5MHz bandwidth and 300ns rise-time. Current input and output pins (four pins each, see diagram) are on the same side of the ...

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Data repeater extends links for PCIe 4.0, as well as 3.0, 2.0 and 1.0

For long data cables, Diodes has introduced aPCIe 4.0 compliant equalising repeater for use between 2.5Gbit/s and 16Gbit/s. Called PI3EQX16904GL, and branded a ReDriver by the firm, the device supports four 100Ω differential current mode logic (CML) data I/Os, providing programmable linear equalisation, output swing, and gain to reduce inter-symbol interference over a variety of physical ...

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An unintended consequence of self-driving cars?

The benefits of self-driving cars are likely to prompt vehicle owners to drive more, and that extra distance could partially or completely offset the potential energy-saving benefits that automation may provide, according to a University of Michigan study. “Much higher energy efficiency targets are required for self-driving cars” It considers the expectation that self-driving cars ...

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4x2mm chips senses ambient light and proximity

Vishay has announced VCNL4040, a combined optical proximity detector and ambient light sensor, that includes infra-red LED, two photodetectors, signal processing and a 16bit ADC in a 4 x 2 x 1.1mm package. “The three-in-one sensor features an interrupt function and supports an I²C bus communications interface, which simplifies window and sensor placement, According to ...

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1.2kV Si rectifiers close on SiC

Vishay has introduced FRED Pt Gen 5 1,200V hyper-fast and ultra-fast rectifiers rated at 30A and 60A for hard-switched and soft-switched (resonant) designs “offering the best conduction and switching loss trade-off for devices in their class”, according to the firm. Matched to operate with mosfets of fast IGBTs, the diodes are optimised for PFC and ...

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PSU with battery back-up connection in 2x4in footprint for security

Delta’s PJU-60W open-frame ac-dc PSUs come with integrated dc un-interruptable power supply, and are aimed at security applications. There are two versions: PJU-13V60WCBA, with a 13.8V 3.5A output and designed to work with a 12V sealed lead-acid battery PJU-27V60WCBA, with a 27.6V 1.4A output and designed to work with a 24V sealed lead-acid battery Batteries ...

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RS parent creates distributor for IoT and single-board computing

RS Components’ parent company Electrocomponents has launched a global technology business to focus on single board computing IoT. Called OKdo, “it will provide end-to-end support for all SBC and IoT segments, spanning makers, entrepreneurs, industrial designers, educators and re-seller partners,” according to the Electrocomponents “it will deliver a combination of hardware, software, development support and ...

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