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 […]
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]
New PWM controller IC By Microchip Charges Batteries of Any Chemistry
https://www.electronics-lab.com/pwm-controller-charges-batteries-of-any-chemistry/
Battery technologies of all chemistry are experiencing revolutionary changes nowadays. Nanotechnology is leading this revolution by yielding new battery technologies including but not limited to Tiny Supercapacitors and Li-ion batteries that never explode at any condition. But, it’s bothersome to make different chargers for different types of batteries. So, Microchip solved this problem by introducing […]
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 […]
A very simple DIY solar-powered USB charger
https://www.electronics-lab.com/simple-diy-solar-powered-usb-charger/
Raj @ embedded-lab.com tipped us with his latest project. It’s a simple, but useful USB Solar powered charger able to charge a power bank or your smartphone. Yesterday, I built a very simple DIY solar-powered USB charger for my TP-link 10400mAh USB Power Bank. All I needed was a 6V/3.5W solar panel and the TD1410-based 5V buck converter module. […]
SunDuino – Run your C application using solar power
https://www.electronics-lab.com/sunduino-run-c-application-using-solar-power/
SunDuino is a Single Board Computer with integrated Battery Charger, Voltage Regulators, I2C, Digital and Analog IO. It’s main benefit is that it can run a compiled C app for years on a small battery or forever using built in solar charger. A background RTOS provides SLEEP functions for reducing operating current to 100ua while providing 125ms periodic wakeups. […]
iPhone Battery Charger / Tester
https://www.electronics-lab.com/iphone-battery-charger-tester/
mozzwald.com has designed an iphone battery charger /tester. I have seen technicians often replace batteries when they may not necessarily need to be or ignore the fact that they could be the cause of the issue at hand. To remedy this I designed a basic iPhone battery charging breakout board system. The system can charge […]
Counterfeit Macbook charger teardown
https://www.electronics-lab.com/counterfeit-macbook-charger-teardown/
Ken Shirriff @ righto.com has done a detailed teardown of a counterfeit macbook charger and show us the difference from a genuine one and why this can be dangerous. He writes: What’s inside a counterfeit Macbook charger? After my Macbook charger teardown, a reader sent me a charger he suspected was counterfeit. From the outside, […]
Smartphone Solar charger card
https://www.electronics-lab.com/smartphone-solar-charger-card/
Here is a nice idea of a business card solar smartphone charger with USB plug. The charger is 3mm thick and can provide 50mA @ 5V Smartphone Solar charger card – [Link]