Electronics Projects Archive

The charger ensures that the battery is charged with a constant current and then recharged after the charging current is reduced. The circuit consists of a full-wave rectifier, a current..

Devices made with NE555 for tacho feedback, optocoupler insulation, DC motor, washing machine motor speed control, lamp etc. control. Various motor control projects made with NE555 timer integrated circuit. You..

The small amplifier consists of 3 transistors and passive components. It can deliver 400mW power at 9VDC operating voltage, speaker impedance is 8-OHM. The input signal is between 200mV and..

Transistor Hi-fi amplifier covers the frequency range from 30 Hz to 100 KHz. It has a wide operating voltage range from 7VDC to 15VDC. Hi-fi Amplifier Technical data; Continuous output..

All issues of the ELV Electronics company ELVjournal Electronics Magazine from 1979-2025 (German 6 months) You can download them as PDF from the official website or access them via your..

250W amplifier has been tested in the field for a long time, high quality and high power. You can use it with 2 8 ohm speakers or one 4 ohm..

Welding machine project is a two-in-one SMPS Power Supply and Welding Machine built on the STM32F103 Development board. Welding Machine circuit Working frequency 45khz. Toroidal cores are used in power..

The lead battery activator prevents the formation of crystalline sulphate deposits on lead plates. Crystalline sulphate deposits form especially in lead batteries that have been stored for a long time,..

Regulator, Power Supply I have completed the power supply, which is the second phase of the Big Breadboard project, and boxed it up. It could have been all together under..

I gave the device in the Breadboard Box project that I shared before to my friend as a gift. He loves electronics (especially analog electronics) and since he makes lots..