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with Grant Imahara

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Poll Results: Edison or Tesla: AC vs DC?

Winner is Tesla! (87%)

Edison VS Tesla



Tesla, Edison and the War of Currents

The latter part of the 19th century saw the first footsteps in a technological revolution that would dwarf all the advances ... Continue

Successful Power Designs For LED Lighting: Guide on LED Driver Topologies

LEDs are continuing to gain market share and penetration into all aspects of lighting. Electrically LEDs are a p–n junction diode ... Continue

The Future of Portable Power

Smartphones represent the peak of portable electronic design. These powerful cellular- and Internet-enabled devices boast ... Continue

Competing Wireless Power Standards: Qi vs. Rezence

Having to charge multiple devices can be frustrating. Whether it’s at an airport terminal or a coffee shop, power outlets ... Continue

Power Efficient Design for Wearable Electronics

The wearable electronic device market is growing rapidly with predictions of more than a $10bn market size by 2020. But the ... Continue

GaN: Gaining Traction, But Still Short of Fulfilling Its Promise in Power Electronics

If vertical GaN is to gain market acceptance in a big way, improvements will be needed in a number of areas to scale ... Continue

Advantages of the 1200 V SiC Schottky Diodes with MPS Design

A Silicon Carbide (SiC) Schottky diode has no real reverse recovery charge. Thus a hybrid set of 1200 V SiC diode and ... Continue

Low Power Design Application Site

As we unplug from the wall and leave power cords behind, our need for greater mobility has increased the demand for low power solutions. Charge ahead and explore ... Continue

Everything for Capacitive Power Supplies

Development engineers are faced with the task of supplying a growing number of devices and system units that only have low voltages ... Continue

Wide Band Gap Application Site

Wide bandgap semiconductors are essential to our technology future. SiC/GaN hold the key to making devices smaller, smarter, more efficient and cheaper to own. See how it’s narrowing the gap ... Continue

Lighting Application Site

The future of lighting is LEDs, especially when it comes to efficacy. Discover illuminating information and new technologies to bring your brightest ideas to light ... Continue

Scientists at Rice University have made a breakthrough in microsupercapacitors. Currently they are expensive to make but using lasers that could soon change by using lasers to burn electrode patterns into sheets of plastic, manufacturing costs and effort drop. The result is a battery that can charge 50 times faster than current batteries and discharge even slower than current supercapacitors.; Sodium-ion batteries, that use salt, have been used in laptops following the creation of a prototype by the French network of researchers and industrial firms called RS2E. This battery uses a standard that means it can be placed in laptops and even work in electric cars like the Tesla Model S. The exact method on build and how it works are being kept secret but the 6.5cm battery can manage 90 watt-hours per kilogram, making it comparable to lithium-ion but with a 2000 cycle lifespan.; The future of batteries is 3D. Prieto is the first company to crack this with its battery that uses a copper foam substrate. These batteries will not only be safer, thanks to no flammable electrolyte, but will also have a longer life, charge faster, have a five times higher density, be cheaper to make and be smaller than current batteries. Prieto aims to put its batteries into small items first, like wearables. But says the batteries can be up-scaled for phones and maybe even cars in the future.; Scientists at MIT have discovered solid-state batteries that are better than current lithium-ion efforts. These batteries should be safer, last longer and offer more power. Current lithium-ion batteries rely on an electrolyte liquid to transport charged particles between the two electrodes. This liquid can be flammable and degrades the battery, limiting its life. According to the MIT report these new batteries could be charged for hundreds of thousands of cycles before degrading. They could also provide a 20 to 30% improvement in power density meaning more charge for whatever it’s powering. And they aren't flammable so they're ideal for electric cars.; Scientists at Stanford University have developed an aluminum graphite battery that could replenish to full in a smartphone in just a minute. Their aluminum graphite batteries are flexible, long lasting and charge extremely fast. An issue is they hold about half the power of a current lithium battery.; Researchers at the California NanoSystems Institute (CNSI) at UCLA have set the stage for a watershed in mobile energy storage by using a special graphene material to significantly boost the energy density of electrochemical capacitors. The material, called a holey graphene framework, has a three-dimensional, perforated structure characterized by tiny holes. It increases energy density and allows electrochemical capacitors to maintain their high power density.

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