Author Archives: steve bush

More on: MIT’s carbon nanotube RISC-V CPU

Last week MIT announced a CPU made from carbon nano-tube (CNT) mosfets using standard CMOS fab equipment and only the materials and processes found within commercial CMOS fabs. Electronics Weekly has delved inside to see how it works. In essence, the CNT logic is CMOS, as the researchers have found a way to create p-channel CNT ...

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Thin flexible bio-sensors are 3d-printed

Georgia Tech has developed a way to 3d print highly flexible bio-compatible battery-free wireless stretch sensors. A potential application is pressure sensing inside brain blood vessels damaged by aneurysms – floppy side bulges that can burst. ‘Aerosol jet’ 3D printing is the chose fabrication technique – in which a fine mist of droplets are blown ...

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Ventec adds thermally-conductive thin isolation foils

Ventec has added two thermally-conductive thin isolation foil materials to its range of thermal interface materials under its distribution agreement with EMI Thermal. Both feature high tensile strength, designed to prevent cut through and electrical shorts, are UL94-V0 recognised and have no viscosity (see table below for characteristics). Intended applications include: PSUs, telecoms, visual devices, ...

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Reset chip works on 24V rails and wastes only 300nA

Texas Instruments has introduced a reset chip for voltage rails between 1.5V and 10V, that can work on 24V rails with additional resistors (see below). Called the TPS3840 family, supply current is typically 300nA, and is 700nA max over temperature. Threshold voltage is fixed, and versions are available from 1.6 to 4.9V in 0.1V steps – ...

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1A buck boost dc-dc in 1.2 x 1.6mm offers 2.8µA Iq

Rohm is claiming 97% efficient operation with a 200mA load and 2.8µA quiescent current from a buck-boost dc-dc converter that produces 2.5V or 3.3V (selectable) from 2.0-5.5V. Up to 1A is available at 3.3V with the input above 2.7V (see bottom table). This is all from a 1.20 x 1.60 x 0.57mm 12pin WL-CSP UCSP50L1C package, including the four ...

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Pico Tech adds DALI decode to scope software

Pico Technology has added DALI decoding and analysis to its PicoScope software, with an update to version 6. “Networked DALI devices are at the heart of modern buildings management. Engineers and systems integrators developing modules and deploying DALI networks need tools to identify timing and signal integrity problems when they occur,” said Pico business development ...

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