Hi guys,
Im currently trying to design a power supply which is capable of simulating a solar cell. This basically means simulating the voltage-current characteristic (which looks like a constant current over an initial range of voltages to a threshold where the current drops down quickly to zero).
I have done some research as well as receiving plenty of advice and have decided to connect a variable voltage source (to give the ability to simulate several types of cells theoretically) with a current limiting circuit.
The current limiting circuit needs to be able to be adjusted via a microcontroller to give a range of voltages (thus simulating a variable resistor). I have been struggling with simulations and was wondering if there was any easy solution for the current limiting that anyone knew?
I have a very limited understanding of this type of circuit so any help would be greatly appreciated. Cheers.
Im currently trying to design a power supply which is capable of simulating a solar cell. This basically means simulating the voltage-current characteristic (which looks like a constant current over an initial range of voltages to a threshold where the current drops down quickly to zero).
I have done some research as well as receiving plenty of advice and have decided to connect a variable voltage source (to give the ability to simulate several types of cells theoretically) with a current limiting circuit.
The current limiting circuit needs to be able to be adjusted via a microcontroller to give a range of voltages (thus simulating a variable resistor). I have been struggling with simulations and was wondering if there was any easy solution for the current limiting that anyone knew?
I have a very limited understanding of this type of circuit so any help would be greatly appreciated. Cheers.