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It is closely related with the ESR (equivalent series resistance) of the cap, lower the resistance higher ripple current it can absorb. Because this resistance puts thermal limits through the caps.
Why not use a simple inrush current limiting circuit instead of inductors, yes inductors can be used for filtering purposes but with an active inrush current limiting circuit you do not need passive limiting solutions. Additionally, you can adjust charging time by simply changing a 0805 package cap.
I think, you can test the power supply rating with a potentiometer with high power dissipation capability.
You must check two things during testing (while decreasing the resistance value):
-When the power supply lost its rated regulation, because there will be some voltage drops in the...
Hi nima_1981,
I suggest you to look up Linear Technology Design Note 355 called "Op Amp Selection Guide for Optimum Noise Performance", i think this document is very helpfull.
About the gain, I can not say the formula directly by looking up, most plausible solution is the testing the circuit...
Are you planning to simulate the low voltage cable in an axact manner? Because when you calculate the capacitance of an low voltage cable you will see that the reactive power generated by the capacitances can be neglected due to low cable lengths. If you planning to see only voltage drops you...
You can use LT1028 as well, there is an example called "Low Noise, Wide Bandwidth Instrumentation Amplifier" in the data sheet. I guess this would work fine to measure a differential signal.
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