仿真只能运行50ms,1844输出的驱动波形也对,但输出电压不是设定的15V,而是30V左右,显示的直流偏置点明显不对,输出窗口提示:
Simulation Profile: SCHEMATIC1-开关电源3844 ---------------
** Profile: "SCHEMATIC1-3844" [ F:\CAD\\1844\3844-pspicefiles\schematic1\3844.sim ]
Reading and checking circuit
Circuit read in and checked, no errors
Calculating bias point for Transient Analysis
X_U1.x78.n1 forced to X state for bias point
X_U1.x78.n1 forced to X state for bias point
X_U1.x78.n1 forced to X state for bias point
X_U1.x78.n1 forced to X state for bias point
Unable to converge all DtoA interface devices
Bias point calculated
Transient Analysis
(post_AtoD_chg) digital_time=55225194, CUR_DIG_TIME=55225224
(post_AtoD_chg) digital_time=61689645, CUR_DIG_TIME=61689721
(post_AtoD_chg) digital_time=61689655, CUR_DIG_TIME=61689721
(post_AtoD_chg) digital_time=61689675, CUR_DIG_TIME=61689721
(post_AtoD_chg) digital_time=61689699, CUR_DIG_TIME=61689721
(post_AtoD_chg) digital_time=62189089, CUR_DIG_TIME=62189183
(post_AtoD_chg) digital_time=62189116, CUR_DIG_TIME=62189183
(post_AtoD_chg) digital_time=62189148, CUR_DIG_TIME=62189183
那位高手知道是怎么回事吗?
