Li-Po/Li-Ion Arduino Charger Shield using BQ21040
Arduino

Li-Po/Li-Ion Arduino Charger Shield using BQ21040

This Li-Po/Li-ion Arduino charger shield is mainly designed to power up the Arduino from single 3.6V Li-Po battery. Li-Ion and Li-Pol Charger/ DC-DC Boost converter Arduino shield provides 6.5V/400mA from single Lithium Polymer battery. The Arduino shield is equipped with BQ21040...

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How to shrink your USB Type-C battery charger [PDF]
USB

How to shrink your USB Type-C battery charger [PDF]

Maxim’s app note on a highly compact Type-C charger solution. A highly integrated solution, as seen with the MAX77860 USB Type-C 3A switch-mode charger, dramatically reduces system complexity by integrating the charger, the power path, the Safeout LDO, ADC, and the USB-C CC and BC...

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makerPower Solar – An intelligent solar power system for the internet of things.
Photovoltaic

makerPower Solar – An intelligent solar power system for the internet of 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...

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BrainDead MPPT Solar charger 35V/8A
Photovoltaic

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...

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Low-current charger provides battery backup from USB to 1-cell applications
Power

Low-current charger provides battery backup from USB to 1-cell applications

Another app note from Maxim Integrated on small current battery management.The circuit provides a 1-cell Li ion backup battery charger for low-current devices performing resistor limited current sharing. A simple circuit sometimes needs to charge a 1-cell Lithium-ion (Li+) battery from...

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ATmega32U4-Based Synchronous MPPT Buck Solar Charger
Photovoltaic

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...

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Lipo Charge/Boost/Protect board in 18650 cell holder format
Power

Lipo Charge/Boost/Protect board in 18650 cell holder format

Peter6960 published a new build: So couple months ago, GreatScott made a video where he designed a circuit. Nothing too innovative, just the same TP4056 charger the MT3608 Boost combined on one PCB. He did add a Lipo protection circuit though, initially using the same DW01. But then,...

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USB Adaptive Charger (2.7A per port) with Wattmeter
USB

USB Adaptive Charger (2.7A per port) with Wattmeter

A 10.8A, 4 port USB charger with a wattmeter and adaptive intelligent charging. It works by taking any DC input between 7V to 17V, from an AC/DC adapter or car adapter. It can be used anywhere with wall outlets, car power ports, lead-acid batteries, DC-output solar panels, and...

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