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How to consider the stability of charge-pump?

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staric

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How to consifer the stability of charge-pum?Positive and negtive ? Who can give me some paper about it?. I cannot find any paper. Thanks.
 

is there any stablility problem in CP?
 

i think that u should bias the CP with just DC with no i/p signal and then do stb analysis ,but i am not sure of this cause CP should be in switching , so maybe u can try in all cases with UP high then with DOWN high then with both low and with both high , it shouldnt be hard but i think time consuming.
i think just to be sure try putting a pulse on the supply and then see if it oscillates or not.
 

What's your loop? To discuss the stability issue, analysis the close-loop is the first step.
 

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