Free On-line SMPS Design Tool
Issue 60, 4th February, 2010
TIPS on PowerEsim
Component Finder

Component Finder is a tool to help user to find a suitable component. It will list out some components that satisfy the searching criteria. If too many components fulfill the criteria, we will filter out some components and only display part of them. If necessary, you can change the number of components shown by changing the value at the list box.

The default value of the number of components shown in the page is 500. You can change this value at Preference page.

What is New? Simulation & Design Counter: 4072018
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Closeloop Analysis
Loop analysis is a tool to let user arbitrarily draw a transfer function,G(s), by varying the coefficients or components from the feedback block. It provides the interface to customize the transfer function and shows the gain and phase of the transfer function.

Input ai and bi using this interface. You can set the number of parameters by setting n, where n is the order of the transfer function. The range of ai and bi should be specified for curve fitting purpose. For coefficient which user may not want to be changed by our non-linear regression curve fitting engine, user simply unchecks the check box as shown above. Click on "Compensation Setting". You can set the expected Gain and Phase at different frequencies. Then, close this window and click on "Automatic Compensation".

After Automatic Compensation, a non-linear regression curve fitting will change values of ai and bi so as to fit the expected gain and expected phase as close as possible. The adjusted ai and bi are shown at the parameter setting interface.
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