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学习别人搭建一个比较简单的bulk电路，由三角波产生方波，方波驱动mosfet，但仿真走不完，求大侠们帮我这个新手解一下。如果不要三角波和方波的电路，右边整个电路可以仿真完。好像是比较器那里有点问题，从波形那里看到仿真停在比较器刚要反转的时间，但不明白为什么比较器反转就会出问题呢？三角波、方波、推挽这三个组合仿真也是正常的。谢谢！
仿真文件：
buck4.zip
(46.03 KB, 下载次数: 7)
仿真图：
仿真设置：
结果如下：
23.7001m 4 0 500n 0.094s 26.848s 2.62E-14 23.70%
23.7501m 2 0 500n 0.109s 26.957s 6.38E-14 23.75%
23.8001m 1 0 500n 0.109s 27.066s 3.64E-14 23.80%
*** ERROR "ALG_NO_SOLUtiON" *** Cannot find nonlinear system solution.
*** ERROR "ALG_ITERATIONS" *** Too many iterations
Partial results at time=0.023823900000013 were written to the initial point "tr".
System size:
108 analog variables
0 digital variables
86 components and subsystems
28 nonlinear components
Algorithm:
47654 time steps
2 backtracks
0 rollbacks
1 iteration limited time steps = 0.0021%
10615 Newton iterations
0.223 Newton iterations/timestep
CPU times:
20.4u sec/nonlinear device/timestep
91.8u sec/nonlinear device/Newton iteration
execution time= 27.3 sec.
messages given: 2 errors
仿真文件：
buck4.zip
(46.03 KB, 下载次数: 7)
仿真图：
仿真设置：
结果如下：
23.7001m 4 0 500n 0.094s 26.848s 2.62E-14 23.70%
23.7501m 2 0 500n 0.109s 26.957s 6.38E-14 23.75%
23.8001m 1 0 500n 0.109s 27.066s 3.64E-14 23.80%
*** ERROR "ALG_NO_SOLUtiON" *** Cannot find nonlinear system solution.
*** ERROR "ALG_ITERATIONS" *** Too many iterations
Partial results at time=0.023823900000013 were written to the initial point "tr".
System size:
108 analog variables
0 digital variables
86 components and subsystems
28 nonlinear components
Algorithm:
47654 time steps
2 backtracks
0 rollbacks
1 iteration limited time steps = 0.0021%
10615 Newton iterations
0.223 Newton iterations/timestep
CPU times:
20.4u sec/nonlinear device/timestep
91.8u sec/nonlinear device/Newton iteration
execution time= 27.3 sec.
messages given: 2 errors
友情提示: 此问题已得到解决，问题已经关闭,关闭后问题禁止继续编辑，回答。
我怕加了电压反馈电路更难仿真出来，所以右边电路很简陋，只有电容和电感。
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