Linear Bench Power Supply
https://www.electronics-lab.com/linear-bench-power-supply/
Matt Godfrey published his linear lab power supply which has adjustable voltage and current limit. Specs: 0-30V, 0-2A, separate 5V output, display of setpoint and output current and voltage: This project is a simple linear bench power supply with adjustable voltage and current. It is meant to be a learning experience, putting ideas of circuit design, […]
AmpStrike – Battery Powered Bench Power Supply
https://www.electronics-lab.com/ampstrike-battery-powered-bench-power-supply/
This is a small bench power supply that is powered by two lithium-ion batteries. The project was inspired by Dave Jones from EEVblog but the design is completely mine. The voltage range is 0-20V regulated in 10mV steps and maximum current is 1A with current limit set in 1mA steps. The power supply runs on […]
BooSTick – small AA voltage booster
https://www.electronics-lab.com/boostick-small-aa-voltage-booster/
A single AA battery provides voltages of 5V or 3.3V for hardware prototyping. This tiny board allows you to bring the power to your project, and not the other way around. Bring your micro to the sensor without running wires! A single AA battery is used to provide breadboard power of 5V or 3.3V (or […]
Low voltage power supply
https://www.electronics-lab.com/low-voltage-power-supply-unit/
Dilshan Jayakody has build a low voltage power supply that is able to provide four outputs: 1.5V, 1.8V, 2.5V and 3.3V. This power supply can be used to power low voltage mcus, CPLDs and analog ICs. He writes: In this post we introduce simple and flexible, regulated low voltage power supply unit. This power supply […]
1.2V to 37V Regulated Power Supply – 1.2A
https://www.electronics-lab.com/1-2v-to-37v-regulated-power-supply-1-2a/
This project provides a variable output power supply ranging from 1.2 to 37 V @ 1.5 A. Uses industry populer LM317 in TO3 package for delivering variable output voltage. Specifications Input 40 VDC or 28V AC 2Amps Output : 1.2 to 37 V @ 1.5 A regulated low ripple DC voltage Heatsink for regulator IC […]
5A Adjustable Regulated Power Supply
https://www.electronics-lab.com/5a-adjustable-regulated-power-supply/
This project provides a variable output voltage ranging from 1.2 to 32 V @ 5 A. Project based on LM338K IC, LM338K is adjustable 3 terminal positive voltage regulator capable of supply in excess of 5A over a 1.2V to 32V output range, simple circuit consist few components. Features Input Supply : 24 VAC or […]
Home Built Bench Power Supply using ATMEGA328P
https://www.electronics-lab.com/home-built-bench-power-supply-using-atmega328p/
ianjohnston.com has designed a nice power supply based on ATMEGA328P and Arduino bootloader. The output is dual channel 0-24vdc @ 3A each, with preset constant current and independant voltage/current control. This isn’t a full design blog but I’ve tried to document/add stuff as I go along, the idea being I’ll put all design documentation (schematic, […]
Arduino Controlled Modular Bench Power Supply
https://www.electronics-lab.com/arduino-controlled-modular-bench-power-supply/
Denis @ envox.hr has designed a great PSU that is reliable, modular, programmable and of course Open source. The power supply is controlled by an Arduino and a touchscreen TFT screen is used to monitor and control it. It comes with a bunch of features you can check on the link below. The programmable bench power […]
5V Symmetrical Regulated Power Supply
https://www.electronics-lab.com/5v-symmetrical-regulated-power-supply/
This Project provides Positive and Negative (Dual Output) 5 V @ 1 A Regulated Power Supply. Specifications Input 7-0-7 VAC to 12-0-12 VAC or +/- 9 to 18 VDC Output : Dual output ± 5 V @ 1 A regulated low ripple DC voltage Heat-sink for regulator ICs Onboard bridge rectifier to convert AC to […]
SparkFun: A look inside some common power supplies
https://www.electronics-lab.com/sparkfun-a-look-inside-some-common-power-supplies/
MTaylor @ sparkfun.com takes a look inside different power supplies he has on his box. Power supplies are everywhere these days. With the advent of switching power supplies, the cost of high-current supplies has radically dropped. Maybe you’ve noticed how the large, heavy, wall-wart style adapters are no longer lurking around your baseboards, falling out of […]