Hi
I am trying to create a circuit that will generate a variable DC voltage from a 300VDC power supply, the output needs to vary from about 5V to 300VDC at 2A. The load is a 2.2H inductor with a ESR of 165 Ohms. So far, I have tried many things, including a PWM signal that gets filtered out, a buck converter with variable PWM input to control the output voltage, etc. Any ideas or suggestions would be greatly appreciated.
I am trying to create a circuit that will generate a variable DC voltage from a 300VDC power supply, the output needs to vary from about 5V to 300VDC at 2A. The load is a 2.2H inductor with a ESR of 165 Ohms. So far, I have tried many things, including a PWM signal that gets filtered out, a buck converter with variable PWM input to control the output voltage, etc. Any ideas or suggestions would be greatly appreciated.