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 […]
Grid-connected solar microinverter reference design
https://www.electronics-lab.com/grid-connected-solar-microinverter-reference-design/
A PDF from Microchip on the theory behind inverter design connected to grip power.: There are two main requirements for solar inverter systems: harvest available energy from the PV panel and inject a sinusoidal current into the grid in phase with the grid voltage. In order to harvest the energy out of the PV panel, […]
Bismuth Oxyiodide (BiOI)—A Non-toxic Alternative To Solar Cells
https://www.electronics-lab.com/bismuth-oxyiodide-bioi-non-toxic-alternative-solar-cells/
Bismuth is considered as a “green-element” and bismuth-based compounds are gaining attention as potentially non-toxic and defect-tolerant solar absorbers. The researchers of the University of Cambridge and the United States developed theoretical and experimental methods to show that bismuth, which sits next to lead (Pb) on the periodic table, can be used to make inexpensive solar cells. […]
Solar Power Module v2
https://www.electronics-lab.com/solar-power-module-v2/
Chip McClelland @ hackster.io published his solar li-po battery charger based on MCP73871 to manage the solar and DC charging of the LiPo battery, TPS63020 Buck-Boost Converter and Maxim 74043 LiPo Fuel Gauge. He writes: I build connected sensor which are often deployed in local parks where there is no access to utility power. Over the […]
Open Source UV Index Detector
https://www.electronics-lab.com/open-source-uv-index-detector/
Boris Landoni @ open-electronics.org documents his UV index detector. It measures solar radiation and visualizes the corresponding value on the integrated display of a miniaturized Arduino, in order to tell us when to expose ourselves to the sun… Open Source UV Index Detector – [Link]
MPPT solar charger
https://www.electronics-lab.com/mppt-solar-charger-2/
Lukas Fässler from Soldernerd has been working on revised version of his MPPT Solar charger project: Over the last few weeks I have been quite busy with my MPPT Solar Charger project. I’ve built up a first board and started writing firmware for it. Since the last version was not too different in terms of […]
BQ25504 Solar Cell LiPo Charger
https://www.electronics-lab.com/bq25504-solar-cell-lipo-charger/
by Pesky Products @ tindie.com: This is a small (0.5 x 0.5 inch) breakout board for Texas Instrument’s BQ25504 Ultra Low Power Boost Converter with Battery Management for Energy Harvesting Applications. BQ25504 Solar Cell LiPo Charger – [Link]
How to connect a Solar Inverter in 10 minutes
https://www.electronics-lab.com/connect-solar-inverter-10-minutes/
Let’s connect a solar power inverter for AC voltage output in just 10 minutes. How to connect a Solar Inverter in 10 minutes – [Link]
MPPT solar charger
https://www.electronics-lab.com/mppt-solar-charger/
Lukas Fässler show us his progress on the MPPT solar charger: One of my main goals with this design is to achieve very low standby current, somewhere in the tens of microamps. The basis for this is a low-power buck on the basis of a Texas TPS62120 where the microcontroller can switch the output voltage […]
DIY USB 5V Solar Power Bank
https://www.electronics-lab.com/diy-usb-5v-solar-power-bank/
Abdulgafur tipped us with his latest project, a 5V solar powered power bank. The circuit consists of two stages, the first stage is the battery charger stage based on MCP73831 and the second stage is the step up converter based on LT1302-5 which converts the battery voltage to 5V. Solar energy is renewable, free, widely […]