Electronics Projects Archive

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

USB Bluetooth Module Amplifier Project

A quality complete 2N3055 amplifier project with bass, treble tone control at 2x10W (4-Ohm) or 2x20W (4-Ohm) power that can be used with USB mp3 module. 2N3055 transistors are used..

AT-ATX Transformer TL494 IGBT IR2110 13.8V 200W Power Supply

In the power supply device, TL494 integrated circuit is used for PWM control, power transistors are IGBT (or mosfet), IR2110 integrated circuit is used instead of transformer for driver. Power..

Low Noise Amplifier SPY Listening Device

Can hear sounds through glass panels or walls. Battery operated Sensitive amplifier, low noise amplifier with up to 5000x amplification, so even the smallest noise sources can be heard loudly..

6V Battery Discharge Protection Circuit

The purpose of the Battery Protection circuit is to protect the 6V battery from over-discharging. The battery voltage is continuously monitored and when it reaches a dangerously low voltage value,..

Increase Your Car’s Performance Battery Voltage Stabilizer Grounding Part 2

“Increase Your Car’s Performance Battery Voltage Stabilizer Grounding” I mentioned the additional chassis method for passenger cars in my post. I applied it on my car. Preparing the cable was..

How to Run Hair Dryer Motor with 18650 Battery Blower Fan

Hair dryers use DC motors between 12V…24V. ​​They rarely fail, usually the 220V cable or heating resistor fails. I have not seen a motor fail yet, in fact I have..

Simple Soft Starter for Motors and Transformers

Soft start, soft start device for motorized hand tools, motors and transformers. It can solve problems such as fuse blowing, irregular operation etc. due to instantaneous high current draw during..

Cyclic Timer NE555 On-Off

A simple but functional timer device that allows you to control any device powered by 230 VAC mains in a cyclical, intermittent manner. A typical astable circuit with the NE555..

50mA-400mA 1.2V-12V Simple Charger for NiCd and NiMH Batteries

NiMH, NiCd Battery charger is a simple circuit with a single transistor and LED indicator, built with very little material. The number of series-connected batteries can be increased according to..

100A Desulfator Lead Acid Battery Sulphate Remover

The 12V Battery Desulfurizer, a more powerful 100 ampere version of the previously shared “Lead Acid Battery Sulfate Dissolver 80A Desulfurizer” device, applies 100A pulses up to 100 µs every..