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| | | | | 输出到控制的传递函数
在ST 应用笔记AN1059中,给出了如下形式的输出到控制的传递函数
除非是使用数学软件,上述表达式很难直接应用于日常的设计中, 推导一个简化的表达式是相当有必要的,经分析可得表达式如下
其中
上述两个表达式的增益相位图为
从上图可看出,二者匹配相当好,故推导的表达式可用于环路补偿的设计。 |
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| | | | | | | | | | | 这个信息只是提示有错,具体的错误信息在 Command Shell window内,把那里面的内容截图贴上来 |
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| | | | | | | | | | | | | ****************************************
<<<<<<<< Error Message ID: 1023 >>>>>>>>
input file C:\Users\ThinkPad\Desktop\single stage pfc simulation\SIMPLIS_Data/L6561-1.deck, line 180:
X$U5 53 60 67 57 58 SIMPLIS_1SHOT_BB$26
Unable to locate the definition
of `subcircuit SIMPLIS_1SHOT_BB$26' in the
input, include, or library file(s).
****************************************
<<<<<<<< Error Message ID: 1023 >>>>>>>>
input file C:\Users\ThinkPad\Desktop\single stage pfc simulation\SIMPLIS_Data/L6561-1.deck, line 190:
X 44 60 61 51 50 NLB_MULTI$31
Unable to locate the definition
of `subcircuit NLB_MULTI$31' in the
input, include, or library file(s). |
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| | | | | | | | | | | | | | | 点击Place-〉Simplis Primitives-〉Non-linear block 查找是否有如下图
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| | | | | | | SIMPLIS偏重于仿,SABER偏重于真,我觉得 |
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| | | | | | | | | 各有千秋,关于Simplis的优缺点 下文有详细的介绍
MERITS AND LIMITATIONS OF CIRCUIT SIMULATION IN POWER ELECTRONICS APPLICATIONS.pdf
• Simulation of sub-switching period phenomena, such as detailed switching
transitions, is practically impossible
• Simulations of multiple switching period characteristics, such as small-signal
loop gain and loop response to a step load change, can be very accurate
• Although many challenges still remain, simulation can be a valuable tool during
the design cycle
• validation of the loop design can be obtained prior to hardware build
• models can be shared with customers to facilitate understanding and to
demonstrate functionality of a circuit |
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| | | | | 楼主,问下,怎么样算是仿真PFC成功了啊。。。。因为我是在校学生做毕设,要仿真PFC,给的有电路图,谢谢指导,是出现了什么样的图像算是仿真成功啊? |
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| | | | | | | | | | | | | 仿真到这就报错了,错误信息如下。您的意思是到现在仿真还没开始是吧?
****************************************
<<<<<<<< Error Message ID: 5011 >>>>>>>>
At t = 1.19878e-001, it is unable to find
the correct state of operation for
some device. For example, check
the following devices:
X$U1.X$S3.S1, X$U1.X$S4.S1, X$U1.!R$R3, X$U1.X$U1.!DAND
X$U1.X$U11.!DCOMP, X$U1.X$U13.!DINV |
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| | | | | | | | | | | | | | | 首先R2 应该是1.5meg,而不是1.5m
下图中红色地方接到地
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| | | | | | | | | | | | | | | | | 嗯,我那个图接地是画错了,已经重新画了,但是Vin和Iin还是感觉不对,我把画的图传上来,你可不可以运行一下看看问题在哪里?
learn.zip |
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| | | | | | | | | | | | | 这个是VCC的图,老师做出了实际的电路,用的就是我上面画的电路,但是他们用的是SA7527,我因为找不到SA7527,所以用的l6551,电路是不是要修改呢? 我看MC33262和SA7527好像可以PIN TO PIN换芯片 |
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| | | | | 怎么用软件计算PF值?我怎么计算得PF=34.8W/(115.3V*0.5A)=0.603
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| | | | | L6562芯片比较经典,能跟着楼主学习下芯片内部逻辑,大有收获谢谢! |
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