What should you do to safe battery.
Make a dummy load for a lower voltage DC power supply. Very good if to test a power supply you got or if you are trying to make one.
Make your own adjustable voltage solar charger.
The solar powering unit presented here has a timer which turns on the Arduino in regular intervals.
This solar powering unit is a time-switching, battery-powered, solar-charged circuit for Arduino.
Ethernet Development Board for Raspberry Pi RP2040 with POE Capability,
Low Noise Adjustable Linear Double Output AC-DC Power Supply
Every engineer needs at least one bench power supply in his house. I agree one can get the power supply directly from the store. How else?
How to build a professional 30V 4A adjustable bench supply using the ZK-4KX Buck-Boost Converter and a old laptop power brick.
A non microcontroller project, A battery charger and overvoltage protector. Can be used as universal battery charger for lithium/ lead acid.
A tiny DC to DC buck converter board is useful for many applications, especially if it could deliver currents up to 3A.
Taking a safe side, using low DC voltage in high power mode we can design a suitable hot plate for our SMT projects.
Some projects need to work with AC main supply. I don't like to work with seperate boxes such as device and AC adapter.
How to build an adjustable switching power supply using LM2576 [buck converter, CC-CV].
This power bank allows you to charge your mobile phones anywhere at any time when you do not have access to the ordinary charger.
Make your own DC-DC Boost Converter to step up DC voltage
Made a bench PSU from scratch using the ZK-4KX DC-DC Buck Boost module and a 3D-printed body.
A small but powerful inverter circuit can power up your small devices. A Inverter with square wave Ac on output.
The USB Power Injector allows a convenient way to power up USB 2.0 devices from a lab power supply, while still allowing data transfer.
Reviewing the popular WEL3005 Electronic Load and Battery Tester Module
A variable power supply is incredibly useful in electronics projects, allowing you to fine-tune voltage to meet your circuit’s requirements.
A simple and fully automatic, 12V uninterruptible power supply system for small/medium power appliances.
The project describes the construction and operation of flip-disc displays. It also shows a simple way to control them via Arduino.
This may be the lifesaver hack, the flex, with a night lamp and a hub of USB peltiers. Keep one with you, always.
