At Sensors Expo 2019, Ben Lanail, Director of Business Development at Alta Devices, explains how his company’s thin-film solar voltaic cells can provide power for a variety of devices and applications, including the Internet of Things (IoT). Made from wide band gap (WBG) gallium arsenide (GaAs), the cells have very good light to electricity conversion […]
Is the energy in energy harvesting really free?
Of course. However, the conversion process to get useful electricity certainly is not. Also, several design considerations must be taken into account to ensure a system’s success. This includes thinking differently about power consumption. With all of the wireless communications applications expanding in consumer, commercial and industrial applications, the power must be achieved without connecting […]
How can the power consumption for computing be reduced for energy harvesting?
At Sensors Expo 2018, Chet Jewan, vice-president of sales and business development from Eta Compute, explains how his company’s computing technology can benefit heart rate monitoring and energy harvesting applications. The first demo, with an Eta Compute chip running at 0.476V powered by solar energy, displays Jewan’s heart rate. A second demo has sensors being […]
How can you harvest RF energy?
At Sensors Expo, Eric Biel, an engineer from Powercast Corporation, explains how radio frequency or RF energy can be used in energy harvesting applications. RF wireless power transmitted by the PowerSpot transmitter is received by two receiver sticks with LEDs. The TX91503 PowerSpot transmitter broadcasts an RF signal in the unlicensed 915 MHz industrial, scientific […]
What’s new in supercapacitors for energy harvesting?
At Sensors Expo 2018, Pierre Mars, head of the applications team at Cap-XX, a supercapacitor manufacturer from Australia, explains the supercapacitor demos in their booth. Using a 800 mF supercapacitor provides the energy to power a 2.9V near-field communication (NFC) 13.5 MHz sensor puck from Silicon Labs. With the charged supercapacitor (above 2.6V) the unit […]
What’s new in batteryless sensing?
To solve the problem of replacing batteries in ever-increasing wireless sensing applications in the Internet of Things (IoT), PsiKick has developed proprietary sensors called Smart Sense Nodes (or S2Ns) that employ ultra-low-power digital and RF circuit technologies. The S2Ns are powered by energy harvested from heat or indoor lighting that eliminates the need for a […]
What’s new in solar energy harvesting for sensors?
At Sensors Expo 2018, Ben LeNail, Director of Business Development at Alta Devices, a maker of thin, flexible solar photovoltaic cells for energy harvesting, provided an update on the company’s technology, its applications and energy harvesting solutions for sensors. The company’s specialty photovoltaic cells are ultra-high efficiency devices. Alta Devices has held the world record […]
What’s new in thin-film batteries?
At Sensors Expo 2018 in San Jose, CA, Jeff Sather, the vice president of Customer Solutions at Cymbet Corporation, explained the various formats for the company’s EnerChip thin-film, solid-state batteries. The wafer fabricated batteries have 5 µAH and 50 µAH ratings. The 5 µAH CBC005-BDC is a rechargeable 1.75mm x 2.15mm x 200 microns thick […]
How do you make an RF energy harvester even better?
For Powercast, whose Powerharvester receiver (PCC110) has been deployed in industrial and commercial systems for seven years, today’s answer is reduce the footprint and volume. The company’s new PCC114 receiver chip’s footprint (1 x 0.6 x 0.3 mm) is seven times smaller than the PCC110 (2 x 2.1 x 0.9 mm) and has 20 times […]
What is the current status of energy harvesting for wireless sensing systems?
Energy harvesting (EH) has been an exciting potential source to power wireless sensing nodes for well over a decade. As in many new technology areas, the hype frequently exceeds the capability of the technology, especially within the short term. While some projections have changed within the last few years, EH still has great potential for […]
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