Adding self power down functionality to your devices
Power SupplyPower down feature is very handy on battery operated devices. For instance most of multimeters already have this feature allowing them to self turn off when there is no activity for some...
View Article12V solar charger using LM317
Solar Energy[Alex] decided to build a solar charger for his car battery. He had an 18V solar panel able to provide up to 83mA. You cannot connect panel directly to battery because charging voltage...
View ArticleElectronic parts voice look-up assistant
SoftwareAs electronic enthusiast you probably have pile of resistors, capacitors and other electronic components. Most of them are color coded and in order to use any of these you need to identify each...
View ArticleHand written equation conversion to LaTex and MathML
SoftwareWriting formulas and equations for some publication or websites is time consuming task. Usually there is LaTex syntax used to enter formulas. But when formulas get more complex it gets really...
View ArticleGround fills and polygons – how to do this right in eagle
PCB TechnologiesTake any professionally made PCB and you will find that in most cases areas between traces are filled with copper areas. In fact background fills can give benefit but also be harmful to...
View ArticleRight hand for electronics designers – pcb calculator
PCB TechnologiesDesigning a good PCB requires some knowledge and good calculator. First one can be obtained gradually by making tons of PCBs and learning from failures. Different thing is calculator....
View ArticleBuilding simple power supply from theory to working example
Power SupplyPower supply is essential part in every electronic device. The whole system relies on it. If power supply fails – device dies too and there is a chance that sensitive parts may be damaged....
View ArticleIntrinsically safe laptops
Computer HardwareComputer is number one tool in engineering, manufacturing and production. When you need some mobility - Laptop is best choice. We all know that computers are packed with electronics...
View ArticleWhat Are Airfield Obstruction Lights?
MiscATG airfield obstruction lights are specialty lights set up on runways and helipads at commercial airports as well as private airfields. These facilities are required by law to provide this...
View ArticleSimple dummy load for basic testing
Power SupplyI bet you face lots of problems in design process where you simply need to test power supply, or LED by providing/drawing constant current regardless to voltage change. Such device is...
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