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 […]
MPPT charge controller reference design for 12- and 24-V solar panels
https://www.electronics-lab.com/mppt-charge-controller-reference-design-12-24-v-solar-panels/
This reference design is a Maximum Power Point Tracking (MPPT) solar charge controller for 12-V and 24-V solar panels. This compact reference design targets small and medium power solar charger solutions and is capable of operating with 15- to 60-V solar panel modules, 12- or 24-V batteries and providing upwards of 20 A output current. […]
Icarus IoT Board has GPS, accelerometer and LiPo charging
https://www.electronics-lab.com/icarus-iot-board-gps-accelerometer-lipo-charging/
More-powerful, low-power Icarus IoT Board sells at €99,50 Low-power, cost-effective Icarus IoT board built with the newest nRF91 modem from Nordic Semiconductor combines the latest technological features in the market and integrates the use of GPS and cellular data (LTE-M / NB-IoT) all in one to offer an endless range of possibilities. The new offering […]
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) […]
LTC4162 Charges batteries from Solar Cells using MPPT
https://www.electronics-lab.com/ltc4162-charges-batteries-solar-cells-using-mppt/
35V/3.2A Battery Step-Down Battery Charger with PowerPath and I2C Telemetry. by Zachary Pantely @ analog.com The first step to designing a battery charger is choosing a battery charger IC from the vast field of available solutions. To make an informed decision, a design team must first clearly define the battery parameters (chemistry, cell count, etc.) […]
BrainDead MPPT Solar charger 35V/8A
https://www.electronics-lab.com/braindead-mppt-solar-charger-35v-8a/
Simple solar charger 35V/8A with automatic MPPT supporting SLA/Li-Ion/LiFePO4 up to 8s. by Adam Lučanský: PCB DIN-rail mountable MPPT solar charger (software-less), as well as ideal-diode prioritizer (if battery is full, load is powered directly from solar panel without cycling battery). Prototype PCB is in production (as of 20.8.2018) and soon ready for testing. The […]
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 […]
Integrated battery charger has optional power point tracking
https://www.electronics-lab.com/integrated-battery-charger-has-optional-power-point-tracking/
An integrated, high voltage multi-chemistry synchronous monolithic step-down battery charger and PowerPath manager with onboard telemetry functions and optional maximum power point tracking (MPPT) has been announced by Analog Devices. The Power by Linear LTC4162 is 3.2A, 35VIN/35VOUT synchronous monolithic multi-chemistry PowerPath manager/charger with digital I2C telemetry and MPPT operation. The LTC4162 transfers power from […]
ATmega32U4-Based Synchronous MPPT Buck Solar Charger
https://www.electronics-lab.com/atmega32u4-based-synchronous-mppt-buck-solar-charger/
You want to maximize the power output of your solar panel? Then you need a maximum power point tracking charge controller! Source files here. Features: Programmable with Arduino IDE Input voltage: 15 – 22V Output voltage: 1 – 14.4V Simple MPPT (Maximum Power Point Tracking) solar charge controller for 18V solar panels Proper buck converter […]
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 […]