Electronics Projects Archive

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

Speaker Repair Coil Replacement

In general, the loudspeaker coil will light up as a result of overload or if the amplifier fails and supplies DC voltage to the output. Generally, repairs are not made..

JTAG AVR Programmer Isolator

The Jtag Isolator device is intended for designers working with devices supplied with voltage dangerous to life or at a potential much higher than the potential of the earth. In..

Solenoid Coil Power Reducer Circuit

Solenoid valves are devices widespread in industry and outside. The indisputable convenience of use is paid for by the considerable power consumption of the coil, which – obviously – heats..

Raspberry Pi Extension Module

Raspberry Pi GPIO GPIO Pi B + extension module The described extension module design allows the use of Raspberry Pi + in control and control applications, providing access to all..

Soft Start Circuit For DC motors

Electric motors, in addition to many obvious advantages, also have some disadvantages. One of them is the consumption of a much higher current during start-up compared to the current consumed..

PIC18F4455 USB Multimeter Circuit

Digital PIC18F4455 multimeter is nowadays the most used measuring instrument for electrotechnical measurements. For users, the advent of digital multimeters meant above all reliability and instrument for measuring all common..

Arduino 8 Band Neopixel Strip Led Spectrum Analyzer Circuit

Arduino Neopixel Spectrum Analyzer Microphone, Arduino, and LED strip to express the sound with light, together with hardware developer who likes to make physical computing, new media art, and IoT…

IRFP240 IRFP9240 Mosfet 400W Amplifier Circuit

Despite the apparent simplicity, this amplifier showed excellent quality parameters, which allows you to safely rank it as a Hi-Fi equipment. The amplifier has a very pleasant sound in the..

STK442-090 Amplifier Circuit

HI-FI 2 x 80W Power Amplifier on STK442-090 Micro assembly Most radio amateurs can be divided into two categories: supporters and opponents of microcircuit amplifiers. As arguments for using such..

Class D Bass Guitar Amplifier Circuit

Completed class d amplifier project Class d power amp, preamp, vu meter, psu, panel desing. Learn about design of amplifiers in class D. Design amplifier wiring for bass with a..