twonsr
Junior Member level 3
hi :
I have a trouble to simulate the PSRR about my voltage regulator.
I want to know my circuit's stability with vdd fluctuation , so I let my vdd to be a sin wave as sin( 10 15m 10k 0 0 0 )
10 is the vdd , 15m is the amlitude and 10k is the frequency.
And then I give a ".TRAN" instruction to get the output's fluctuation.
But I find if I add accurate=1 in options , the result will change very much.
Why ?
If my simuation method is wrong , please help me and give me some suggestion.
Thank you very much.
I have a trouble to simulate the PSRR about my voltage regulator.
I want to know my circuit's stability with vdd fluctuation , so I let my vdd to be a sin wave as sin( 10 15m 10k 0 0 0 )
10 is the vdd , 15m is the amlitude and 10k is the frequency.
And then I give a ".TRAN" instruction to get the output's fluctuation.
But I find if I add accurate=1 in options , the result will change very much.
Why ?
If my simuation method is wrong , please help me and give me some suggestion.
Thank you very much.