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error amp of current mode buck converter

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chungming

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buck converter current mode

Hi ~~
The system bandwidth of buck converter often set : 1/10*clock Frequency .
But the error amp spec only identifies Gm Av.
How about the bandwidth , slew rate ??
Do we need a very fast slew rate of error amp?
Or if slew rate too fast ,the system intends to unstable?
Thanks ~!!
 

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