Tag: power electronic projects

Power supply circuits, SMPS Power supplies Switched DC DC Power supplies Inverter circuits Battery Battery Charging Circuits. Power electronics circuits, projects.

Hot Glue Gun Booster Circuit

| 2023/10/18

A hot silicone gun was used extensively for a contract job. Since it did not heat up quickly, I solved the problem with a simple rectifier circuit. It was used for about 2 weeks and it did not cause any problems, but constant exposure of the resistor to high voltage may cause problems. I decided…

Hakko 907 Soldering Iron Control Circuit Arduino Nano

| 2023/10/18

The Hakko 907 Soldering station is built on Arduino Nano, so you won’t need a programmer and various adapters for it again. The circuit has minimal parts and requires no adjustments. Hakko 907 soldering iron circuit has been used for about 5 years and has never caused any problems. Hakko 907 Driver Circuit Features: Designed…

Adjustable power supply

| 2023/10/18

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…

Regulated Power Supply 0.24V 0.8.5A ATX Modified

| 2023/05/04

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…

Making a High Current Shunt Resistor

| 2023/05/04

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…

Converting Computer Power Supply to Battery Charger

| 2023/04/07

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…

Breadboard Power Supply Box

| 2023/04/07

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…

12V 20A Lead-Acid Battery Charger TL494 UC2906 ACS758

| 2023/03/19

The designed SMPS charger system uses both constant current and constant voltage charging methods. It can be used to charge classic, gel and traction accumulators with a working voltage of 12 V. It can gently charge deeply discharged accumulators, but also maintain their maximum capacity during a longer shutdown. The charger is able to recognize…

2X38V 250W IR2156 Amplifier Power Supply SMPS

| 2022/10/27

An SMPS switched power supply project for power amplifiers with the IR2156 half-bridge mosfet driver IC from International Rectifier (currently acquired by Infineon Technologies). Brief information about IR 2156. The IR2156 is a half-bridge half-bridge converter controller with a built-in high voltage driver and a programmable oscillator. It was designed by the manufacturer as a…

BMS 3S 25A Circuit Diagram and Modified

| 2022/10/07

BMS 3S 25A is frequently used especially for Li-ion battery conversion of cordless drills. Its prominent features are balanced charging, over-current, short-circuit protection, allowing instantaneous 34-40A current flow, which is very good for high-power applications, and the PCB size is very small and the mosfets are cooled over the PCB. (although a heatsink may be…