Electronics Projects Archive

Electronic plans news for electronic hobbyist or engineers. Free electronic schematics (circuits) electronic blog site. Electronic content post and more..

Arduino Push Pull Solenoid Drum Midi Player

An interesting study was done using push-pull solenoids in the Arduino drum project. Rhythms are played using MIDI files with Arduino. The Arduino Ethernet card is used to read MIDI..

RMS 500W Amplifier ZENER V3

8-OHM RMS 100W Amplifier ZENER’s 500W version. Semi-complementary ZENER amplifier, the sound is very clean and there is no pop sound at the opening. As long as you make it..

Switching Power Supply 2X40V Active PFC 400V

Active PFC supported SMPS power supply is made with IR2156 Ballast driver integrated circuit. Active PFC section uses MC33262 active power factor integrated circuit. Output voltage of SMPS circuit on..

A Useful Tool for Work Safety in SMPS Repair

Switched power supply, SMPS circuits can take a long time to repair, continuous measurements are made, electricity is supplied, re-checking, etc. When the input voltage 220VAC is cut off, there..

TP4056 Led Headlamp Charger Modification

While I was thinking that there is no worse, dangerous, low-quality design for 18650 Rechargeable Li-Ion batteries and chargers, I encounter much worse chargers and batteries. The batteries of the..

Arduino Memory Buttons

A project made with Arduino to redesign a control panel with large and mechanical on-off switches. A circuit was designed with Arduino to use a smaller push-release button. The pressed..

Open Source ECU Project Car Engine Management

Open source ECU. Electronic control unit is the new generation automotive engine management. With the availability of cheap but extremely powerful STM32 microcontrollers, a very simple and powerful engine management..

160V Motor Power Supply UC3842

A converter circuit design was made with UC3842 as the power supply of 170VDC and 3.1 Ampere motor to operate the lathe. At first, the lathe machine was operated with..

Pulse Charger for Car Batteries + Desulfator Circuit

I made a PCB drawing with the power stage of the TL494 control circuit that I shared in the article “Converting a Computer Power Supply to a Battery Charger”. The..

Adjustable Soldering Iron Circuit 24V 48W

In the analog soldering station project, a “K” type thermocouple was used for temperature measurement. With the adjustable soldering iron circuit, Quick, Solomon and Gordak brand soldering irons were tested..