Summer holiday is comming and maybe you are looking for some interesting project which will be helpful for your development. Active electronic load is very good project which you can use everytime during you development of power supply or regulator.
When should you use the electronic load? If you develop own power supply or regulator, you should test the behaviour of regulation loop.
You can find out what happen when you connect the load to your regulator.
The main component which controls the active electronic load is STM32 (STM32F072C8) microcontroller. The microcontroller drives operational amplifier which drives powerful transistor.
The STM32 microcontroller includes USB interface, so you can easily control the electronic load by software in laptop.
If you want to control the electronic load quickly, just use encoder and the values (power, current) you can see on the display.
The power voltage of electronic load is from 3.3V up to 40V, you can also power the load from 5V USB.
The permament power can be up to 12W (with room temperature).
The electronic load includes protections - overvoltage, overcurrent, temperature.
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