I want to simulate my DC/DC converter in LTspice. it is 12Vin, 1000V out, 1.5W. The way it behaves is that it will output 1000V into a high resistance load, but when the resistance gets below a certain number, the output voltage starts to drop, as the wattage is exceeded. I calculate that the converter should put out 1000V into a 666,666Ω load; anything below that, and the voltage should trail off linearly to zero as resistance goes down to zero (I think).
I have not been able to figure out how to do this. I input a series resistance of 666,666Ω but that results in serious loading which is not right.
BTW this is the part.
I have not been able to figure out how to do this. I input a series resistance of 666,666Ω but that results in serious loading which is not right.
BTW this is the part.