Voltage adjustment from 0.1V to 25V with “+” and “-” buttons; When the “+” and “-” buttons are held down, a slow change begins at 0.1V, after 2 seconds the change accelerates. Min. for 3A version of current limit. Min. for 150mA and 10A version. Setting it to 500mA; The current mode is selected by…
I made an application about converting the old generation ATX power supply to a 0.24v 0.8.5A regulated power supply, as in the project of converting the computer power supply to a battery charger that I shared before. The price of regulated power supplies has increased, this power supply is very useful in your workshop, and…
I tested another combination lock circuit. The function of the system is to receive the signals from the infrared receiver and compare them with the values previously stored in the EEprom of the PIC12F675. After receiving the 4-digit password, it compares the lock activation output and outputs. To set the password, simply press the ‘Prog’…
You can use IR2104 MOSFET full bridge motor driver circuit in your high power motor projects. There are DIP and SMD version PCB drawings of the circuit. 7400 NAND gate IC is used in the signal input. The author faced many problems while implementing this project. An important detail is that if the supply voltage…
Automation project using PIC12F675 Microcontroller automatically discharges water with Electrovalve. Infrared light reflection method is used to detect the presence of a person or object. It can be used in automatic urinal flushing or different automation control projects, scenarios. It is important to isolate the infrared receiver and infrared transmitter led from each other. The…
With the rapid development of electronics, it is unfortunately becoming commonplace to install wireless devices for listening and video transmission in apartments and workplaces. However, even if the operating systems are known, it is not so easy to detect such devices. These devices are very small in size and very similar to the devices we…
It is an application that will be useful for measurements with a multimeter. Measurement is made by drilling 0.8mm or 0.9mm holes in the measuring instrument probes and attaching them directly to the header pins on the circuit boards. Or an unassembled capacitor, resistor, etc. It is used for measuring electronic components. Although there are…
Since I don’t work at very high powers, power electronics, measurement etc. Like many electronics, I use a stone resistor, in fact, it’s healthier to use a metal type shunt resistor, sometimes I wrap it in a shunt resistor. I don’t know how suitable the type of material used for handmade shunt resistors is, I…
A modification to convert an old generation ATX or older AT computer power supply to a 4AH..100AH battery charger. You can add a TL494 controlled module to the power supply and make a high power charger that works very well after a few tweaks. The output voltage of the circuit can be adjusted between 10.6v….17v…
It is very practical to make circuits with a breadboard, especially in circuits with less material. Sometimes I build mixed circuits, but usually simple circuits. In the breadboard experiments, the power supply started to be a problem. It takes some time, especially when 2 or 3 different voltages are required, especially if symmetrical voltage is…