I have been trying to model my load in LTSpice but seem to be getting different results for different methods. The first suggested to replace my resistors with pulsed current sources, and that was it. Another tells me to keep my load resistors, but place pulsed current sources in parallel with them with the characteristics of my load.
The characteristics of my load is a travelling wave tube transmitter, so for example can be operating at a duty cycle of 1% @ 100kHz or 25% @ 10kHz, etc. I will attach the second method that I mentioned in a schematic in hopes the question will be clear. If there are alternative methods that are more accurate please let me know.
Output 1 is 15kOhm resistor, 3kV voltage, 600W and output 2 is 600kOhm resistor, 6kV voltage, 60W output power (continous pulse). Average pulsed powers are much lower.
The load pulses from full current to substantially ZERO current at the aforementioned rates. Only current in the secondary side is due to the resistive divider for feedback. This is what I have read. Others have told me I must include a minimum load resistor, so if anyone has advice on whether to do that(and how?) then that would be additionally very helpful.
The characteristics of my load is a travelling wave tube transmitter, so for example can be operating at a duty cycle of 1% @ 100kHz or 25% @ 10kHz, etc. I will attach the second method that I mentioned in a schematic in hopes the question will be clear. If there are alternative methods that are more accurate please let me know.
Output 1 is 15kOhm resistor, 3kV voltage, 600W and output 2 is 600kOhm resistor, 6kV voltage, 60W output power (continous pulse). Average pulsed powers are much lower.
The load pulses from full current to substantially ZERO current at the aforementioned rates. Only current in the secondary side is due to the resistive divider for feedback. This is what I have read. Others have told me I must include a minimum load resistor, so if anyone has advice on whether to do that(and how?) then that would be additionally very helpful.
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