I hope you will find patience to read my beginner question.
I need to do some test on a diode using a simple setup: AC power supply + load + diode. The problem is that I must generate a sinusoidal or square waveform with 8 periods (the period duration varies from 300us up to 10ms), with amplitude varying between ±10V and ±20V,0V DC Offset (at least ±0.5V steps) and peak current up to ±250A.
These would be the ideal specifications. The minimum would be ±200A, ±10.5V and ±20V, 100Hz and 3Khz, sine or square waveform, 8 periods.
I'm not familiar with such kind of tests and I don't have any experience in this field. I'm asking here hoping someone having more experience in this field can recommend me some an alternative or some instruments.
I've searched on the internet for some instruments but I can't find something which is suitable for my setup. Or maybe I don't know exactly what to search. I've found some 4-Quadrant Amplifier and AC Sources but always are limited: if they have current capability then they have limited output voltage or vice versa.
For the load I think I can use something from http://www.frizlen.com/en/home/ but I'm not sure. I need a resistive load between 50 and 100 mOhm.
I've also thinked to create an DC-AC Pure Sine Wave inverter without a 220V transformer at the output, and power it from a High Current DC Voltage source. I've found this document:
in which they explain how to design a pure sine wave inverter and I want to ask the community if this idea might work, keeping in mind that my required output frequency are between 100Hz and 3KHz.
Is anyone who can advice me or suggest how to generate these waveforms? Thank you in advance :)