Electronics Projects Archive

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

Laboratory Power Supply Symmetrical 0-40V 4A 0-20V 0-8A

Regulated power supply can be adjusted between 0.20 Volt 8 Ampere or 0.40 Volt 4 Ampere according to the selection. Current limiting between 0V and 20V 2mA..8A. High output voltage,..

LM324 Electronic Load 8 Mosfet 600W

LM324 Electronic Load 4 Mosfet is the 8 mosfet version of the LM324 op amp blind load device shared in the article. The PCB size is 10x10cm and single-layer. The..

IRFP9240 IRFP240 High Quality Mosfet Amplifier

The mosfet amplifier was originally made as a subwoofer amplifier, but that doesn’t mean that the amplifier performs poorly in the rest of the frequency range. It’s a powerful, quality..

ATX Power Supply Modified 13.8V 80 Plus PFC PWM Combo Controlled

I modified the ATX 80 Plus power supply with active PFC using SC3805 or CM6805BSX integrated circuits for single output 13.8V high power. In the article “Flyback atx power supply..

SMPS Modified Charging Car Battery with Laptop Adapter

Connecting a Car Battery to a UPS Uninterruptible Power Supply I mentioned in the article that I need to modify the SMPS power supply to charge the car battery.. The..

Connecting Car Battery to UPS Power Supply

Can a car battery be connected to a UPS?, Can a car battery be charged with a UPS?, Installing a car battery to a UPS. I was using a small..

Resonance Welding Machine Inverter IR2153

High power SMPS application with IR2153 Welding machine. Used in profile welding etc. works well. Explanation for adjustment: The only adjustment to be made is to set the frequency for..

LED Heart Circuit PIC16F628

ATmega88 led heart circuit (smd led effect), Led Heart Circuit Music Box RGB Led Effect, RGB Led Heart Circuit PIC 12F629 Mood Light, 30 Led LED Heart circuit made with..

Pulse Time Control Spot Timer For Battery Spot Welding Machine

For battery spot welding machine construction a powerful source and a control circuit for triggering are required, the cheapest and simplest is the single trigger design made with NE555. The..

30, 40, 50, 60 Degrees 4 Level On-Off Type Electronic Thermostat

A simple thermostat device to keep the temperature constant. In the Electronic thermostat project, you can select the desired temperature value to control at 4 levels: 30, 40, 50, 60..