saber2012DC仿真提示如下，求大大帮忙
> dc (pins all,siglist / *.*/*(*) The no_ramping algorithm failed. Trying the dyn_ramping algorithm.The dyn_ramping algorithm failed. Trying the gmin_ramping algorithm.Cannot solve with the initial value of GBegin=1The gmin_ramping algorithm failed. Trying the static_ramping algorithm.The static_ramping algorithm failed. Trying the den_ramping algorithm.Automatic algorithm selection exhausted*** ERROR "ALG_SINGULAR_JACOBIAN" *** Singular Jacobian matrix.Some possible causes for a singular Jacobian matrix:
- Model operating outside of its intended region of operation.- Node/subsystem with no connection to the reference (floating).- Current loops (voltage sources/inductors in parallel).- Missing equation and/or missing variable reference.Partial results were written to the initial point "dcerr".execution time= 0.203 sec.messages given: 1 error
源文件如下
