Content posted in January 2009
Intel researchers demo RF energy harvester
Articles 1/26/2009 Post a comment
Using low-lost circuitry based on a Texas Instruments MSP430 microcontroller, researchers at Intel Labs have devised an RF energy-scavenging platform that can harvest 60 microwatts - sufficient to drive many remote sensing applications - from a TV transmission tower at a distance of 4.1 km.
Using op-amps in the precision signal path
Articles 1/25/2009 3 comments
In systems where a digital sensor is interfacing to a processor, it will often fall to a digital engineer to design the complete signal path. So what are the key analog phenomena that need to be managed in order to produce a high-precision signal path with a single-supply op amp?
NEC : 16-bit flash MCUs feature an LCD controller-driver
Articles 1/16/2009 Post a comment
NEC has developed twelve 16-bit all-flash microcontrollers (MCUs) with on-chip LCD driver, optimized for the fields of handheld healthcare diagnostic instruments such as blood glucose meters, building utility meters for the gas/water/electricity markets, and FA equipment.
Allegro : Buck regulator IC achieves high switching frequency
Articles 1/15/2009 Post a comment
The A4403 from Allegro MicroSystems Europe is a 3-A buck regulator IC which uses a valley current-mode control scheme to offer very low switch-on times, making it attractive for applications that require high switching frequencies combined with high input voltages and low output voltages.
MCUs reduce cost of e-metering apps
Articles 1/13/2009 Post a comment
The ultra-low-power MSP430FE42x2 MCU solutions from TI are designed to reduce the electronic bill of materials for single-phase electricity metering applications to the $1 range.
There’s a further cool thing you can do with a spreadsheet that most SPICEs can’t. That’s to use the spreadsheet ‘solver’ functionality to adjust component values in the search for a better-fitting circuit – or even to find a set of component values for a circuit you can’t otherwise design.
Infineon MOSFETs have been embedded into PC boards by Schweizer Electronic AG
You now need to adjust component values to achieve some system goal, such as predefined frequency response or time behaviour, and there’s no closed method for working out those values.
As a member of the electronics design community, I am angry and disappointed with the recent deaths of 346 people due to the Boeing MAX 8 design