questions about bandgap startup circuit

woaidongyouji

hi all,
i wanna do some research about the startup circuit of bandgap, please help me

1:how to analysis the numbers of the stable operating points of the circuit. as far as i know, some bandgap circuits have 2 stable operating points, some circuits have 3 stable operating points. I wanna know are there some methods to count the numbers of stable operating points?

2:how to analysis a kind of startup circuit can work properly? what kind of situation can make the bandgap circuit fail to startup?

3:is there any method to calculate the startup time and the overshot time?

any suggestion or any paper reference is highly appreciated.

ps: pls show me the paper download links, thanks all

                               
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woaidongyouji

no one cares?

hzcj

you can refer this book：Voltage Reference - From Diode To High Precision High Order BandGap， it can be found here。