LM3478: Webench Flyback Simulation

Adam Daluga

Part Number: LM3478

Hi,

I’m trying to simulate the LM3478 in webench as a flyback converter. I can only seem to configure it as a boost converter.

Can you tell me how to simulate the flyback functionality of it? I am reviewing a design and would like to confirm its operation.

Thanks,

Adam

over 5 years ago

0 Richard Fu22 over 5 years ago

TI__Mastermind 31315 points

Hi Adam,

You can build a model of the flyback converter using the LM3478 PSPICE transient model. In order to implement a coupled inductor, I would recommend putting the magnetizing inductance in parallel with a transformer that has the desired turn ratio. You can also refer to this application note to double check:

http://www.ti.com/lit/an/snva761a/snva761a.pdf?ts=1588004708306

Thanks,

Richard

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LM3478: Webench Flyback Simulation