stability simulation setup for Bandgap..

[bharatsmile2007]

Hi..

can any one tell me the simualtion setup for finding out the stability of the BGR?

Pls find the schematic i used....

Thanks

 

[mengcy]

I use "iprobe" to analysis the stability of the BGR.
Any other methods?

 

[jluhzw]

I will do the tranisent simulation to test if it
is stable when power on.
Please take attention to the startup with different
rate of power on.

 

[saro_k_82]

Replace the short between node VBE and the gate of TP8 with a dc voltage source (V1) with dc=0. Do a STB analysis pointing to V1. This should tell you the dc gain, PM and GM of the loop.
To confirm it in the time domain, apply a small step disturbance on the supply (when the nodes are stable) and see how various nodes jump and settle.