用saber2007 DC仿真手中一款節(jié)能燈電路（實(shí)物），新手，在論壇和網(wǎng)上找了各種資料，無法解決。請(qǐng)各位大師幫看看，萬分感激。

錯(cuò)誤提示：

*** ERROR "MAST_NO_NUM_EQUATION" *** Numerically no equation at /n_263.*** 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.

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