Using components from specialized library

Question

Waqar Ahmad 2022-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/1667459-using-components-from-specialized-library

回答： Sabin 2022-12-24

Hello,

I am implementing a model while using the MOSFET from from the specialized library,

As per my perception, the N-Channel MOSFET (shown at upper position in the figure) has more options for parameterization than the one shown at lower side, However I am unable to connect it with the PWM signal.

My Question:

Is my perception about the N-Channel MOSFET true or not?
How can I connect it with the PWM signal?
do I need to connect myself a diode with it which will act as a body diode, or just change in the parameters?

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Benjamin Thompson 2022-3-9

What MATLAB products are you using for this example?

Waqar Ahmad 2022-3-14

Hi Benjamin,

I am using the "Simscape/Electrical/Semicinductor & converters"

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Answer 1

Sabin 2022-12-24

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https://ww2.mathworks.cn/matlabcentral/answers/1667459-using-components-from-specialized-library#answer_1135452

The top one is the N-Channel MOSFET which is indeed more complex than the MOSFET (Ideal, Switching). You cannot connect the gate signal in the same way as the N-Channel MOSFET is not accepting PS inputs (only electrical connections). You can use a voltage source connecting the + terminal to the gate and negative terminal to the source. Check the MOSFET Characteristics example. Both blocks allow you to include the body diode from the block mask. By default, body diode is not included.