Author Archives: steve bush

Automotive MCUs for SiC charging

STMicroelectronics has announced a microcontroller for electric vehicle on-board chargers, particularly those using silicon carbide power components. “Typical automotive MCUs in the market today cannot execute the charging-control algorithms at a rate that can support the higher SiC switching frequencies,” claimed ST. “Instead, additional DSP chips are needed specifically to handle the control loop.” The ...

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Low power and quick accurate low-voltage op-amps from Maxim

Maxim has quietly released a couple of op-amp families, one very low power and the other blending high speed, precision and low noise. MAX40023 and MAX40024 are single and dual amplifiers that will run from 1.6 to 3.6V, typically for 17μA per channel. A shut-down pin typically takes this to 55nA. Both inputs and outputs swing ...

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High-power IR LEDs from Vishay

Vishay has released a family of six high-power infra-red emitters in 3.4 x 3.4mm lead-less packages. They are “designed with a 42mil chip for 1.5A dc operation, with  support for pulsed currents up to 5A”, according to New Yorker Electronics, which is stocking the parts. They come in two wavelengths and three viewing angles. The parts ...

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500W ac-dc PSUs

Mornsun’s LMF500-20Bxx series of 500W ac-dc PSUs are available from Relec. The units have a universal input of 80 – 264Vac “and dual use of the same terminal enables it to also accept 110 – 370Vdc”, according to the Dorset-based distributor. There are six models, all with built-in power factor correction, offerign a choice of output ...

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High-side mosfet load switch driver is 1.2 x 0.8mm

Toshiba has introduced a mosfet load switch gate driver in a 1.2 x 0.8 x 0.35mm 6bump WCSP6G the chip-scale package, suiting it to wearables and smartphones, it said. The IC, called TCK421G, can separately drive the gates of a pair of back-to-back n-channel mosfets to make a reverse-blocking switch – useful when multiplexing power sources. If ...

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2W xenon light source spans UV to IR for analysis and measurement

Excelitas has introduced a precision-aligned 2W xenon light engine for light-based measurements. Called µPAX-3, in includes an EMI-suppressing enclosure, the xenon flash lamp light source, a trigger circuit and a power supply – all within 42mm square by 31mm deep (plus connector), which is smaller and more robust than the existing µPAX-2, according to the ...

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PCI Express 6.0 compatible Base transmitter test

Tektronix has introduced “industry’s first PCI Express 6.0 compatible Base transmitter test solution, just weeks after the PCI-SIG working group released PCIe 6.0 Base specifications and validation requirements”, according to the test equipment company. For use at 64Gtransfer/s with DPO70000SX ATI oscilloscopes of at least 50GHz bandwidth, it includes PCIe 6.0 measurement-specific software, enhanced PAM4 ...

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100W through a sugar cube

Flex Power Modules has used a two-phase topology to deliver 80A continuously (140A peak) from a 0.7cm3 (10 x 9 x 7.6mm) dc-dc module. Called BMR510, it includes necessary magnetic components and can produce outputs between 0.5 – 1.3V from inputs spanning 4.5 to 16V “which makes it compatible with 4:1 conversion ratio front-end intermediate bus converters”, said ...

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Custom PSUs from Recom

Austrian power supply maker Recom has a custom design service for ac-dc and dc-dc converters. “Our engineering teams in China, Taiwan, Austria and Italy can design new products from the ground up,” according to the company. “Alternatively, semi-custom-designs and modifications to existing products are offered. Recom’s automated production lines offer economies of scale through various ...

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