Author Archives: steve bush

Reader-friendly guide to open-source hardware DIN Spec.

A reader-friendly guide to the recently-announced open-source hardware specification DIN Spec 3105 has been published, written on behalf of the Journal of Open Hardware by Jérémy Bonvoisin of the University of Bath, one of the many contributors to the specification in which German standards organisation Deutsches Institut für Normung solidly defines what ‘open-source hardware’ is, and what isn’t. The ...

This story continues at Reader-friendly guide to open-source hardware DIN Spec.

Or just read more coverage at Electronics Weekly

Siglent adds lower-cost spectrum analysers

Siglent Technologies has added a pair of RF analysers to its range: an entry-level spectrum analyser, and a lower-end real-time spectrum analyser. SSA3032X-R (photo right) is the real-time spectrum analyser, with a maximum bandwidth of 9kHz to 3.2GHz (as opposed to 5GHz or 7.5GHz in the company’s faster real-time (‘-R’) versions). Specs shared with its ...

This story continues at Siglent adds lower-cost spectrum analysers

Or just read more coverage at Electronics Weekly

3W dc-dc converters with 3kV isolation, 4:1 input range and 2MoOP

Cosel has announced a series of high isolation 3W dc-dc converters for medical and industrial applications. Isolation in the MH3 series is 3kVac and 4.2kVdc, and for medical applications the parts offer two means of operator protection (2x MoOP, 250Vac) isolation to IEC60601-1 3rd edition. There is a choice of input ranges, each spanning a ...

This story continues at 3W dc-dc converters with 3kV isolation, 4:1 input range and 2MoOP

Or just read more coverage at Electronics Weekly

Sub-GHz wireless MCU for two-layer boards supports LoRa

STMicroelectronics has added a QFN48 package to its STM32WLE5 wireless SoCs. Called STM32WLE5Cx “the new 7mm x 7mm package option makes it suited to a simplified two-layer board design that eases manufacturing”, according to the company – ‘x’ decides how much flash is available. These chips combine an ARM Cortex-M4 STM32L4 microcontroller with Semtech’s SX126x ...

This story continues at Sub-GHz wireless MCU for two-layer boards supports LoRa

Or just read more coverage at Electronics Weekly

Sensor for Pb ions finds pollution in muddy water

Lead pollution in rivers can be measured in minutes using a proof-of-concept sensor from Rutgers University in New Jersey. It is designed to work directly with sediment – in which Pb pollution tends to gather, and which gets disturbed during activities such as dredging. One of the time consuming parts of sensing in water with ...

This story continues at Sensor for Pb ions finds pollution in muddy water

Or just read more coverage at Electronics Weekly

Alternative magnetic material for electric vehicle motors

Japanese scientists are proposing a new material for use in the permanent magnets of electric vehicle motors. The incumbent technology – neodymium-iron-boron, sometimes with dysprosium – works well, but Nd and Dy are considered minerals or strategic importance by nations which mine them, and are mostly found in China where exports are restricted. Working together, ...

This story continues at Alternative magnetic material for electric vehicle motors

Or just read more coverage at Electronics Weekly

High-performance fabric sensors survive washing machine

Re-usable flexible medical skin electrodes have been built by combining fabric and chemical engineering at the University of Massachusetts Amherst. Technical performance is similar to commercial wet gel electrodes, while convenience is comparable to dry electrodes – which are easy to use but generally provide inferior signals to wet electrodes. Four of the electrodes have been ...

This story continues at High-performance fabric sensors survive washing machine

Or just read more coverage at Electronics Weekly

‘Open source hardware’ no longer vague as DIN pins down the definition

German national standards body DIN (Deutsche Institut für Normung) has defined exactly what ‘open-source hardware’ is, and what it isn’t. This should mean an end to ‘open-washing’ – marketing partially or completely closed-source hardware as ‘open-source’. The definition is laid down in document ‘DIN Spec 3105 Open source hardware’, which has been written in English. ...

This story continues at ‘Open source hardware’ no longer vague as DIN pins down the definition

Or just read more coverage at Electronics Weekly

Two separate inductors in one package for Class-D automotive audio

Vishay aims to save space in automotive Class-D audio amplifiers with two independent inductors in the same package. Built into a 2525 case size (under 8 x 8 x 8mm), the AEC-Q200 qualified IHLD-2525GG-5A inductors are intended “to provide noise filtering in Class D amplifiers”, they “consists of two IHLP inductors with operating temperatures up ...

This story continues at Two separate inductors in one package for Class-D automotive audio

Or just read more coverage at Electronics Weekly

Inclinometer chip with machine learning

STMicroelectronics has introduced a two-axis digital inclinometer for use in industrial automation and structural-health monitoring. It includes a programmable machine-learning core and 16 independent programmable finite state machines intended to save power for battery operation and reduce data transfers from edge sensors to the cloud. Called IIS2ICLX, the device has selectable full-scale of ±0.5, ±1, ±2 ...

This story continues at Inclinometer chip with machine learning

Or just read more coverage at Electronics Weekly