Electronics Design

Small switch mode PSU module MPS MP2307 fail

I  need power supplies for different eletronics circuits. I decided to get some cheap switch mode power supply modules 5Pcs Mini DC Adjustable Power Supply Buck Module Step Down Module (available also as single unit). The ideas was to try to use them instead of power wasting traditional linear regulators. 5Pcs Mini DC Adjustable Power

Bespoke Processors: Cheap, Low-Power Chips That Only Do What’s Needed – IEEE Spectrum

http://spectrum.ieee.org/tech-talk/semiconductors/design/bespoke-processors-cheap-lowpower-chips-that-only-do-whats-needed This article tells about interesting approach to processor design: Starting with a Texas Instruments openMSP430, they produced bespoke designs. “Our approach was to figure out all the hardware that an application is guaranteed not to use irrespective of the input,” says Kumar. What’s left is “a union, or superset, of all possible paths that data

LED current regulator has low dropout | EDN

http://www.edn.com/design/led/4442091/LED-current-regulator-has-low-dropout?utm_content=buffer1967d&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer This article has an intetesting LED current regulator circuit idea built using transistors. The voltage drop on the current sensing resistor r is less than 40mV.  The nominal LED current here is 7.2 mA at 9V. Increasing to 20V causes a current change of +15%, giving a dynamic resistance of about 10kΩ.

IMS 2017: RF/microwave test equipment, part 1 | EDN

http://www.edn.com/electronics-blogs/rowe-s-and-columns/4458491/IMS-2017–RF-microwave-test-equipment–part-1?utm_content=buffer9eaa6&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer The IEEE International Microwave Symposium is in Honolulu, Hawaii in 2017. Here is some of the new test equipment seen by EDN staff.

Death of Moore’s Law Makes Open Hardware Possible – Hackster’s Blog

https://blog.hackster.io/death-of-moores-law-makes-open-hardware-possible-7aaad86e47bf Bunnie argued that while Moore’s Law held if you started developing a project at the point when a vendor released their silicon it would be obsolescent even before you managed to ship it.  We may well have reached the point where our computing is “good enough.” That, at least as far as computing is concerned, we’re

Inside an isolated RS-485 transceiver | EDN

http://www.edn.com/design/analog/4458434/Inside-an-isolated-RS-485-transceiver?utm_content=buffer1c35d&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer Over the past decade, legislation has changed and now requires machinery and equipment operating in harsh environments to implement isolation for their data transmission systems. As a result, the trend away from legacy single-channel isolated systems to applications utilizing multi-channel isolation has led to the introduction of new isolation components. Many of these applications

Turn Any Surface Into A Touch Screen

http://www.iflscience.com/technology/this-spray-can-turn-any-surface-into-a-touch-screen/ This looks interesting. The technology, called Electrick, was developed by scientists from Carnegie Mellon University in Pennsylvania, with the findings published in an open access paper. The spray consists of an electrically conductive carbon-based material. By applying electrodes to the object, and then measuring the voltage at different points, the position of a person’s finger can

A Circuit That Sees Radiation Strikes Could Keep Errors at Bay – IEEE Spectrum

http://spectrum.ieee.org/tech-talk/semiconductors/design/a-circuit-that-sees-radiation-strikes-could-keep-errors-at-bay For a short time, it looked like the worlds electronics would be safe (well, safer) from radiation. With the switch from planar transistors to FinFETs, ICs suddenly became naturally resistant (literally) to having their bits flipped by a neutron splashing into them and blasting lose a small cloud of charge.  But two things are now

How to Save Money and Reduce Risk Developing a New Electronic Hardware Product

https://blog.hackster.io/how-to-save-money-and-reduce-risk-developing-a-new-electronic-hardware-product-1d554c5bb762 Bringing a new electronic product to market is generally difficult, risky, and expensive. To succeed, and make it to eventual profitability, you need to focus your early efforts on minimizing risk and cost. This article gives tips if you plan to go to hardware business.  Here is another related article worth to read: Let’s