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Maximum transient voltage across C2/C7 calculation?

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btbass

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If we have a power supply to a BTS711L1 High side switch, decoupled by two capacitors in parallel, C2: 220nF/C7: 100nF.
The transient test pulse 2a (+37V/+50V, 0.05ms cycles for 500 pulses) with a source impedance of 2 Ohms.
How would you calculate the maximum transient voltage across C2/C7?
 

According to the time constant ratio you can simply assume the full generator voltage.
 

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