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Portable power supply with built-in batteries
Most of the bench power supplies we use derive power from the main AC supply. ThomasVDD presents his Arduino-controlled smart power supply with built-in battery backup so that you can use it anywhere...
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Making a high-current bench-power supply utilizing ARTESYN NXA66 regulator...
Andy Brown explored reverse engineering the ARTESYN NXA66 regulator module to build a cost-effective bench-power supply with high current supply capability. NXA66 is a non-isolated dc-dc converter...
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DIY Buck-Boost converter
A buck-boost (also known as step-down and step-up) converter is a type of DC-to-DC converter that combines the principles of the buck and boost switched mode power supplies in a single circuit. What...
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Solar powered USB power bank
Solo-lab’s new project article is about building a rechargeable USB power bank which harvests energy by using a solar panel. It uses a 3.7V, 4000mAh LiPo battery to store the electric energy generated...
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A very simple DIY solar-powered USB charger
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. I bought...
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DIY power bank using recycled Laptop battery
This DIY power bank project from Do It Yourself Gadgets uses recycled laptop battery and a 5V boost converter to construct an USB charger. DIY power bank using laptop battery This article will show you...
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Prototyping board with built-in power supply
This prototyping board with built-in regulated power supplies was designed by Electro-Lab and consists of four independent DC-DC buck converters based on LM2675-ADJ and generates 3.3V, 5V, 12V and -12V...
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Dual channel battery charger plus analyzer
K.C. Lee‘s dual channel battery charger is a microcontroller-based efficient switching mode power supply design for not only the charging job but also for determining the charge/discharge...
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Open source, modular bench power supply
Here’s a neat bench power supply design from a Hackaday user which offers very interesting features such as software calibration, programmatic control via USB Raw HID, etc at an affordable price. While...
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Making a low cost portable phone charger
If you have any spare old phones with no use lying around, you may want to use their batteries to build this portable charger for your new smartphone. On the electronics side, this project only...
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STM32 powered miniature power supply
This compactly designed power supply uses STM32 microcontroller to compute the power supply output voltage and load current, and display these parameters on a RGB OLED display. The input to this power...
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TPS61230 based 5V LiPo Booster
Jianan Li, a ECE and CS student at Duke University, has designed this 5V LiPo Booster based on TI’s TPS61230 IC. It is breadboard-friendly and it can be directly plugged into the power rails of...
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Switching regulators guide
From Jim Williams’s application note on Switching Regulators for Poets: The post Switching regulators guide appeared first on Embedded Lab.
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Supercapacitors for reliable backup power in embedded systems
From Samuel Nork’s article “Supercap backup circuit provides reliable uninterrupted power” Temporary backup power is a common requirement for a wide range of applications whenever the main power source...
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DC booster for your 12V load
This 12V DC booster circuit uses the MC34063A device which contains all the primary functions required for DC−to−DC converters. It has a built-in temperature compensated reference, comparator,...
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DIY battery backup for your Raspberry Pi
This project is about making a battery backup circuit for Raspberry Pi computer and prevent any abrupt shutdown during power failure. It also allows to safely turn the device off if the main power...
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