saber仿真:使用uc3845仿不起來閉環(huán)(主電路有變壓器)
我現(xiàn)在用uc3845,在仿傳統(tǒng)boost電路時是可以閉環(huán)的.但是在仿隔離boost變換器時,也就是比boost電路多了一級變壓器隔離.
閉環(huán)后瞬態(tài)仿真錯誤提示:
*** ERROR "ALG_NO_SOLUTION" *** Cannot find nonlinear system solution.
*** 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.
Potential problem variables/equations:
saber仿真:使用uc3845仿不起來閉環(huán)(主電路有變壓器)
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如果把直流仿真的采樣點(diǎn)密度從1改為2 出現(xiàn)錯誤提示
如果把直流仿真的sample point density從1改為2,出現(xiàn)錯誤提示:
dc (density 2
The no_ramping algorithm failed. Trying the dyn_ramping algorithm.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vbe(driver.e
) is out of defined sample points on the low end.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vce0(driver.
e) is out of defined sample points on the low end.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vbe(driver.e
) is out of defined sample points on the low end.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vce(driver.e
) is out of defined sample points on the low end.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vce0(driver.
c) is out of defined sample points on the high end.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vce(driver.c
) is out of defined sample points on the high end.
*** ERROR "BUG_ASSERT_FAILED" *** Program failure at line 623 in file trandc.r.
Notify Analogy, Inc.
restore
The dyn_ramping algorithm failed.
uc3845很容易出這樣的錯誤.另外,saber上我只看到節(jié)點(diǎn),沒有看到line呀?
如果把直流仿真的sample point density從1改為2,出現(xiàn)錯誤提示:
dc (density 2
The no_ramping algorithm failed. Trying the dyn_ramping algorithm.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vbe(driver.e
) is out of defined sample points on the low end.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vce0(driver.
e) is out of defined sample points on the low end.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vbe(driver.e
) is out of defined sample points on the low end.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vce(driver.e
) is out of defined sample points on the low end.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vce0(driver.
c) is out of defined sample points on the high end.
*** ERROR "ALG_OUT_OF_REGIONS" *** /uc3845.p_pwm02_677_1/totem.tot1/vce(driver.c
) is out of defined sample points on the high end.
*** ERROR "BUG_ASSERT_FAILED" *** Program failure at line 623 in file trandc.r.
Notify Analogy, Inc.
restore
The dyn_ramping algorithm failed.
uc3845很容易出這樣的錯誤.另外,saber上我只看到節(jié)點(diǎn),沒有看到line呀?
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@prentemp
如果把直流仿真的采樣點(diǎn)密度從1改為2 出現(xiàn)錯誤提示如果把直流仿真的samplepointdensity從1改為2,出現(xiàn)錯誤提示:dc(density2Theno_rampingalgorithmfailed.Tryingthedyn_rampingalgorithm.***ERROR"ALG_OUT_OF_REGIONS"***/uc3845.p_pwm02_677_1/totem.tot1/vbe(driver.e)isoutofdefinedsamplepointsonthelowend.***ERROR"ALG_OUT_OF_REGIONS"***/uc3845.p_pwm02_677_1/totem.tot1/vce0(driver.e)isoutofdefinedsamplepointsonthelowend.***ERROR"ALG_OUT_OF_REGIONS"***/uc3845.p_pwm02_677_1/totem.tot1/vbe(driver.e)isoutofdefinedsamplepointsonthelowend.***ERROR"ALG_OUT_OF_REGIONS"***/uc3845.p_pwm02_677_1/totem.tot1/vce(driver.e)isoutofdefinedsamplepointsonthelowend.***ERROR"ALG_OUT_OF_REGIONS"***/uc3845.p_pwm02_677_1/totem.tot1/vce0(driver.c)isoutofdefinedsamplepointsonthehighend.***ERROR"ALG_OUT_OF_REGIONS"***/uc3845.p_pwm02_677_1/totem.tot1/vce(driver.c)isoutofdefinedsamplepointsonthehighend.***ERROR"BUG_ASSERT_FAILED"***Programfailureatline623infiletrandc.r.NotifyAnalogy,Inc.restoreThedyn_rampingalgorithmfailed.uc3845很容易出這樣的錯誤.另外,saber上我只看到節(jié)點(diǎn),沒有看到line呀?
提示信息
ERROR "ALG_OUT_OF_REGIONS"
Example
*** ERROR "ALG_OUT_OF_REGIONS *** /op_amp1.ut/tn.q2/pxvbci (q.1) is out of defined sample points on the low end.
Problem
This error is generally associated with the use of the q, spq, d, and spd models, but can also appear when others are used. The voltages and/or the currents applied to the model are outside the defined operating range. Check the error message to determine which models are involved.
Solution
?Check your netlist to make sure the models are connected and biased correctly.
?Find out if the collector-to-emitter voltages are being limited. Use the di command to display DC voltages. Invoke the SaberScope Waveform Analyzer to see tranalysis or dtanalysis results.
?If the error still occurs, contact Customer Support.
按上面的提示檢查一下電路吧!
ERROR "ALG_OUT_OF_REGIONS"
Example
*** ERROR "ALG_OUT_OF_REGIONS *** /op_amp1.ut/tn.q2/pxvbci (q.1) is out of defined sample points on the low end.
Problem
This error is generally associated with the use of the q, spq, d, and spd models, but can also appear when others are used. The voltages and/or the currents applied to the model are outside the defined operating range. Check the error message to determine which models are involved.
Solution
?Check your netlist to make sure the models are connected and biased correctly.
?Find out if the collector-to-emitter voltages are being limited. Use the di command to display DC voltages. Invoke the SaberScope Waveform Analyzer to see tranalysis or dtanalysis results.
?If the error still occurs, contact Customer Support.
按上面的提示檢查一下電路吧!
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@prentemp
我不會把saber文件傳上去我只會全屏拷貝.怎么傳呢?弱弱地問
試試:
1 如MOSFET 使用 實(shí)際的產(chǎn)品 若是使用ideal mosfet
最好在MOSFET 并聯(lián)一個小電容10~100p 和反并聯(lián)一 個二極管;
2 先開環(huán)仿真 ,設(shè)置好電感 ,電容,r 的值,不要隨意 設(shè)置參數(shù) (很重要).開環(huán)成功后,再閉環(huán)
3 若能仿,觀察MOSFET驅(qū)動信號,再做判斷
4 仿真最好 : 先分塊仿真 ,成功后再聯(lián)調(diào)
1 如MOSFET 使用 實(shí)際的產(chǎn)品 若是使用ideal mosfet
最好在MOSFET 并聯(lián)一個小電容10~100p 和反并聯(lián)一 個二極管;
2 先開環(huán)仿真 ,設(shè)置好電感 ,電容,r 的值,不要隨意 設(shè)置參數(shù) (很重要).開環(huán)成功后,再閉環(huán)
3 若能仿,觀察MOSFET驅(qū)動信號,再做判斷
4 仿真最好 : 先分塊仿真 ,成功后再聯(lián)調(diào)
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@onlylm2002
試試:1如MOSFET使用實(shí)際的產(chǎn)品若是使用idealmosfet 最好在MOSFET并聯(lián)一個小電容10~100p和反并聯(lián)一 個二極管;2 先開環(huán)仿真,設(shè)置好電感,電容,r的值,不要隨意設(shè)置參數(shù)(很重要).開環(huán)成功后,再閉環(huán)3若能仿,觀察MOSFET驅(qū)動信號,再做判斷4仿真最好:先分塊仿真,成功后再聯(lián)調(diào)
我仿真全橋的時候,開環(huán)仿真主電路和控制電路沒有問題,但是閉環(huán)的時候,驅(qū)動信號開始有輸出,但過了一段時間就突然沒有了,請問這一般是什么原因?qū)е碌模?/div>
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