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Vipergan50TR, switching frequency

Yali_Fan1
Visitor

Dear ST office,

 

I have a project with the chip Vipergan50TR.

We need the output voltage of 20V/0.2A,  -20V/0.2A,  7V/1.5A. We plan to let the vipergan chip control 20V channel.

 

I tried your online design tool for AC/DC. When i typed in output voltage is 20V, 0.2A for just one channel with the chip Vipergan50TR. It shows me the switching frequency is too low. Please see attachment.

Why does this happen, how can we change it?

 

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