how to reduce power supply noise？
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There is inducdance in bonding wire, if switch current in high speed, there will have large undershoot or overshoot
on power supply, I know that add decouping capacitor may help, but the cap needed may be large.
Anybody has experience to solve this problem?
on power supply, I know that add decouping capacitor may help, but the cap needed may be large.
Anybody has experience to solve this problem?
1. switch only after current become 0 by implementing minimum and maximum duty ratio
2. separate the power supply for different part of the IC so that the ringing will not cause malfunction to other part
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