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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High Voltage Capacitor Charger for Photo-Flash Using LT3751
High Voltage

High Voltage Capacitor Charger for Photo-Flash Using LT3751

The project is built for professional photo flash systems. Circuit generates high voltage from low voltage battery to operate a photo-flash tube. The project can also be used in other applications like high voltage capacitor charger, emergency strobe, high voltage power supply,...

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2062
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Versatile And Open Source LiPo bBattery Breadboard Power Supply
HardwareICPower supply

Versatile And Open Source LiPo bBattery Breadboard Power Supply

Orlando Hoilett from Calvary Engineering LLC designed a  versatile Li-Po battery breadboard power supply and wrote an Instructables on it. This power supply outputs 3.3V to the breadboard and takes input from a single-cell LiPo battery. The breadboard power supply also has the...

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Solar Power Module v2
Solar

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...

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