AC analysis issue

youshang

Q:


上圖為SIMPLIS 內建範例電路 LLC_CLOSED_LOOP

一般ac analysis的設定是在輸出灌一個擾動源並夾上 AC碳棒


接下來加入POP TRIGGER 確認觸發的訊號 –(此範例為變頻)  我們的電路也是餵給POP TRIGGER 內部的振盪訊號

接下來設定


此時間需要比 穩態的開關切換週期來的長

這邊也部分設定好了，只點選pop 按run


出現此訊息  

必需要再另外勾選Transient才能夠跑

而勾選Transient後，跑完的結果也沒有顯示bode curve 以及phase curve


A:
工程師建議勾選Transient後下方再勾選AC

1.      The pop trigger clock already correct to power stage switch cycle
2.      Disable Soft-start etc.. function, let power stage operation in Feedback mode at the beginning
3.      Setting maximum period is correct ( higher than 1 switch cycle period)
4.      Added AC source and Bode probe as below



The Simplis operation in transient is work, but when check pop


When press down Run bottom…


Appear this Window
You must enable a Transient analysis with the simulator | choose analysis… schematic menu when the default sampling type is set to integer
Enable Transient analysis & pop as below



It’s work but only run transient result without bode curve
My question is how to solve this problem as below


By the way , the control used logic function,
Please help me send this mail to principal company.