Electronics Projects Archive

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

Washing Machine Motor Driver Circuit Lathe Machine Saw

In applications for external starting of the washing machine engine, the biggest missing torque is the lack of power control, starting the engine by applying direct voltage only provides speed,..

Advanced Battery Repair Circuit Desulphator

A more powerful and advanced automatic Battery desulfurizer circuit as an alternative to the “Battery Repair Desulfurator Circuit” project. The circuit is used to dissolve the sulfate on the battery..

Electronic Load Circuit LM324 4 Mosfet

It is a more powerful version of the “Mosfet Electronic Load Circuit LM358” project I shared, with 4 mosfets. When I got the 2-Mosfet circuit close, I did not bother..

Desoldering Pump Cleaning

“Cleaning the Desoldering Pump” was one of my duties during my apprenticeship years 🙂 Even though I don’t clean it as thoroughly as in those days, it still works. Note:..

Siren Circuit with LM317T

A simple electronic siren circuit using the adjustable regulator integrated LM317T. Sound is produced with a 384 Hz square wave that oscillates approximately 9.8 Volts peak-to-peak. The RMS power of..

Light Signal circuit

A simple but useful and stable circuit. In this state, it easily operates a 50W lamp without needing cooling. Of course, it got a little hot in my 100W experiments..

OpAmp Tester Circuit

It is actually a simple circuit that makes a flip flop with three different opamp types. The PCB design of the elector is slightly different and the sockets used for..

Battery Discharge Protection Circuit

A simple battery discharge protection circuit implemented with TL431, BC557 transistors and a small number of resistors. The power line is controlled with an N-Channel MOSFET instead of a relay,..

30 Users 1 Admin RFID Access Control Circuit

A project using RFID-RC522 module and PIC16F628A to perform access control with RFID Key cards. Adapted from Arduino “AcessControl” software. The PIC16F628A software is written in CCS C to work..

Single Supply TDA2030 Bridge

The TDA2030 Bridge amplifier can be used with a single source power supply. Working voltage DC 12V…. It is between 32V and can be operated with 12V battery, 24V battery,..