wonbef
Full Member level 3
- Joined
- Oct 13, 2004
- Messages
- 188
- Helped
- 8
- Reputation
- 16
- Reaction score
- 6
- Trophy points
- 1,298
- Location
- Nanshan, Shenzhen
- Activity points
- 1,083
hi, all,
the following circuits are bandgap voltage referenc circuits. but Fig.1 can operate correctly, and Fig.2 will oscillate if the rise time of the power-on is very short (ex: 1us, 10us). but the open loop is stable. i don't know the reason why Fig.2 oscillate, does it result from start circuit? need your help, thanks in advance.
very sorry, i don't know how to paste the figure in here, so i upload the circuits file.
kind regards,
wonbef
the following circuits are bandgap voltage referenc circuits. but Fig.1 can operate correctly, and Fig.2 will oscillate if the rise time of the power-on is very short (ex: 1us, 10us). but the open loop is stable. i don't know the reason why Fig.2 oscillate, does it result from start circuit? need your help, thanks in advance.
very sorry, i don't know how to paste the figure in here, so i upload the circuits file.
kind regards,
wonbef