Buck-Boost Battery Charge Controller with MPPT and I2C
https://www.electronics-lab.com/buck-boost-battery-charge-controller-mppt-i2c/
The LT8491 from Analog Devices is a buck-boost switching regulator battery charge controller that implements a constant-current constant-voltage (CCCV) charging profile used for most battery types, including sealed lead-acid (SLA), flooded, gel and lithium-ion. Applications are expected to include solar powered battery chargers (see simplified schematic above), multiple types of lead-acid battery charging, Li-ion battery […]
Indoor Solar Cells optimised to convert ambient indoor light to electricity
https://www.electronics-lab.com/indoor-solar-cells-optimised-to-convert-ambient-indoor-light-to-electricity/
Swedish and Chinese scientists have developed organic solar cells optimised to convert ambient indoor light to electricity. The power they produce is low, but is probably enough to feed the millions of products that the internet of things will bring online. For more information see the IDTechEx report on Energy Harvesting Microwatt to Megawatt 2019-2029. […]
makerPower Solar – An intelligent solar power system for the internet of things.
https://www.electronics-lab.com/makerpower-solar-intelligent-solar-power-system-internet-things/
makerPower Solar is a combination intelligent solar battery charger and power supply for low- to medium-power devices freeing them from the outlet. It is designed to provide 24/7 power for a wide range of embedded systems and IoT gadgets. According to Julio: Optimal charging is provided through a dynamic perturb-and-observe maximum power-point transfer converter (MPPT) […]
Miniature Solar Cells Embedded in Clothes can Charge your Mobile
https://www.electronics-lab.com/miniature-solar-panels-embedded-clothes-can-charge-mobile-phone/
Miniature technology is a claim in today’s world. We talked recently about the tiny gyroscope which is the size of a grain of rice, and now clothes embedded with miniature solar cells the size of a flea can allow wearers to generate electricity outdoors, and charge items like mobile phones and smartwatches. The cell developed […]
10kW 3-Phase Grid Tie Inverter Reference Design for Solar String Inverter
https://www.electronics-lab.com/10kw-3-phase-grid-tie-inverter-reference-design-solar-string-inverter/
This verified reference design provides an overview on how to implement a three-level three-phase SiC based DC:AC grid-tie inverter stage. Higher switching frequency of 50KHz reduces the size of magnetics for the filter design and enables higher power density. The use of SiC MOSFETs with switching loss ensures higher DC bus voltages of up to […]
Solar harvesting into Li-ion battery
https://www.electronics-lab.com/solar-harvesting-into-li-ion-battery/
A highly efficient solar powered Li-ion charger with two regulated outputs. The AEMLION is a 0.8×0.6 inch (20x15mm) PCB with the AEM10941 Solar Harvesting IC from E-peas. It efficiently converts solar energy into Li–ion battery charge, it even works with indoor light. It features 3.3V and 1.8V regulated outputs that are enabled when the battery […]
High Efficiency MPPT Solar Charger
https://www.electronics-lab.com/high-efficiency-mppt-solar-charger/
A 75 watt MPPT Solar Charger with tons of features. Efficiency > 97%, USB interface, data logging, 2 USB charging ports and much more…by Lukas Fässler This is an open source project that I’ve been working on for several years now. From its modest beginnings it has evolved to a rather sophisticated device with a […]
DC-DC converter starts up and operates from a single photocell
https://www.electronics-lab.com/dc-dc-converter-starts-operates-single-photocell/
by Marian Stofka @ www.edn.com: The bq25504 from Texas Instruments is a good candidate to become a milestone on the road to micro-power management and energy harvesting. A prominent feature of this IC is its ability to start up at a supply voltage as low as 330 mV typically, and 450 mV guaranteed. With an SMD […]
Solar energy harvester IC that operates with indoor lighting
https://www.electronics-lab.com/solar-energy-harvester-ic-operates-indoor-lighting/
Saelig Company, Inc. (www.saelig.com) has introduced the patented Sol Chip Saturn802 Energy Harvester IC – a unique photovoltaic (PV) cell which can produce output voltage levels of 0.75V, 1.5V, 2.25V, 3.0V, 4.5V, and 9V, which existing solar cells cannot do. The maximum power which can be obtained in full daylight is around 10mW, or 55uW […]
Perovskite solar cells stabilized at 19% efficiency
https://www.electronics-lab.com/perovskite-solar-cells-stabilized-19-efficiency/
Researchers at EPFL in Switzerland have found that adding large organic compounds called guanidinium (CH6N3+) into methylammonium lead iodide perovskite solar cells can provide stable power efficiency of 19%, approaching that of silicon cells. by Nick Flaherty @ eenewseurope.com: The lab of Mohammad Khaja Nazeeruddin at EPFL Valais Wallis, with colleagues at the University of […]