Electrical power

http://www.edn.com/design/power-management/4458294/Using-a-supercapacitor-for-power-management-and-energy-storage-with-a-small-solar-cell–Part-1 The environment has abundant energy but little power. Energy harvesting can tap the environment’s “infinite” source of energy, and avoids the cost of wiring to mains power or replacing of batteries. This article will look at using small solar cells.  Depending on the light level, whether indoors or out, small solar cells may deliver →

This is 150W 12V DC to 230V 50 Hz AC conveter designed to be used in car. It failed few days ago when powering a laptop.  Let’s take a look what is inside. Closer look. Here is DC power input filtering.. looks as quite ugly late add-on to design.. More circuit board details. On the →

http://www.edn.com/electronics-products/electronic-product-reviews/other/4458242/Power-Integrations-highlights-importance-of-power-factor-correction–at-APEC-2017?utm_content=bufferce187&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer Power factor correction is the process of improving a low power factor in a facility by increasing the ratio of real (working) power to apparent (total) power. Power-factor correction allows the input current to continuously flow, reduces the peak input current, and reduces the energy loss in the power supply, thus improving its operation →

http://www.edn.com/electronics-blogs/living-analog/4458237/Space-vectors- Interesting article on three phase power – how to generate it in motor control applications. →

http://spectrum.ieee.org/energy/renewables/nanogrids-microgrids-and-big-data-the-future-of-the-power-grid  The power grid’s interlocking technological, economic, and regulatory underpinnings were established about a century ago and have undergone only minimal disruption in the decades since. But now the industry is facing massive change. →

https://techcrunch.com/2017/03/29/mit-critical-infrastructure-research-brenner-trump/?ncid=rss&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Techcrunch+%28TechCrunch%29&sr_share=facebook There is need to improve cyber security on our infrastructure. →

http://www.edn.com/design/power-management/4458085/Power-quality-monitoring-technology–helping-industrial-equipment-stay-healthy?_mc=sm_edn&hootPostID=510cd8126072cf72f2a2673535aee8d9 According to a recent study published by the Electric Power Research Institute (EPRI), large industrial facilities in the US lose over $100 billion every year due to power problems including power supply variations and voltage disturbances.  When the lights flicker at home, it’s an annoyance. But when power is disturbed at a factory, it →

https://www.theguardian.com/environment/2017/mar/07/solar-power-growth-worldwide-us-china-uk-europe?CMP=share_btn_tw →

http://www.edn.com/electronics-blogs/powersource/4458088/Measuring-appliance-power-consumption?_mc=sm_edn&hootPostID=9fedecb073d55f43621c2bd0befab5d9 Tips how to analyse power consumption of different equipment. →

https://www.forbes.com/sites/jamesconca/2012/06/10/energys-deathprint-a-price-always-paid/#3c839a52709b Everyone’s heard of the carbon footprint of different energy sources, the largest footprint belonging to coal because every kWhr of energy produced emits about 900 grams of CO2. Wind and nuclear have the smallest carbon footprint with only 15 g emitted per kWhr. But how dangerous different energy sources are for people working with →