Electronics Projects Archive

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

Heat Sensitive Fan Speed Control Circuit

A circuit PCB design that adjusts the fan speed according to the temperature was made as small as possible, most of the components are SMD, in addition to the fan..

2SA1943 2SC5200 200W Amplifier Circuit

The single channel 200W version of the amplifier shared in the article 400w (2X200w) Transistor Amplifier Circuit was designed as small as possible in PCB size. The power transistors of..

Power Strobe LED

The Strobe Led Lamp circuit has 16 effect modes selected with the button built on the PIC12F675 microcontroller. Since the selected mode is stored in the integrated eeprom, the selected..

Musical Ring Box Led Heart Circuit RGB Effect

I shared the ATmega88 microcontroller Led Heart circuit years ago. The LED Heart circuit that I have applied is controlled by the ATmega8 microcontroller. I made a lot of decoration..

Pocket prototype board PCB

Every electronic system, even the simplest, requires a power supply. The presented board contains three stabilizers supplying voltage through pin connectors and special wires to the contact plate with pocket..

LM317 TIP36C 0-30V 0-5A Laboratory Power Supply

I have seen different versions of the power supply, even the same circuit has a halide designed as a battery charging circuit in the LM317 datasheet file and in some..

DIY Orthopedic Knee Chair

It can be thought that sitting on the knee chair, does not look comfortable, but it is a very useful design especially for those who spend a lot of time..

TL072 Active Filter Circuit For Subwoofer Amp

The important thing for the subwoofer amplifier is the Bass filter circuit. Circuit TL072 Opamp is built on operational amplifier. The system’s task is to collect signals from both channels..

Car Amplifier Circuit 2X300W 500W SG3525 DC DC Converter

My brother Hasan is an old project of two channels 300w and 500w versions. Pre-shared 500W 250W Hi-Fi Transistor Amplifier Circuits and SG3525 EI33 ATX 200-600w DC-DC Converter for auto..

OBD II Socket Adapter PCB

The project is an external OBDII socket interface that allows easy access to the CAN bus and other transmission lines used by vehicle manufacturers using a diagnostic tester. Recommendations: the..