Active PFC supported SMPS power supply is made with IR2156 Ballast driver integrated circuit. Active PFC section uses MC33262 active power factor integrated circuit. Output voltage of SMPS circuit on load is 2X40VDC PFC output voltage is 400V There is source PCB drawing of Active PFC Power supply project (sprint layout 6) also MC33262 PFC…
I made a PCB drawing with the power stage of the TL494 control circuit that I shared in the article “Converting a Computer Power Supply to a Battery Charger”. The PCB size is small and light enough to fit in a toolbox with a thick strip cooler that cannot be higher than 10×10 cm, a…
I don’t know about ultrasonic welding for plastic, but there are projects that can be useful for those who are interested. The appropriate ultrasonic with sufficient power in the application is 60W at 68kHz, disassembled from an ultrasonic cleaner. A lower frequency is more suitable. PVC welding The ultrasonic transducer behaves approximately like a series…
I prepared a PCB for the Simple Switch Mode Power Supply Self Osc ATX Transformer that I shared before. It is compatible with the battery boxes of many drills. Apart from the PCB design, the tests were very challenging, I encountered interesting problems and saw strange events especially in electronics repair work. The problem of…
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…
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…
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…
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…
1200W 60V SMPS Power supply UC3844 Classic topologies of blocking converters are usually considered suitable only for small ones performance, on the order of about 100-200 W. Their main advantage for low-power applications is simplicity and large input voltage range. At the output of the transformer only the rectifier diode and the output capacitor are…
Simple SMPS Circuit Self-Oscillating ATX Transformer There were shares to run the rechargeable drill without a battery IR2153 SMPS, Battery, Transformer.. The batteries of the drill I used were also faulty, the price of the battery pack was quite high, by connecting a 12v 7ah battery, I used the drill for a long time, but…