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Shaping of signal only with analog components

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ricko_uk:
Hi Tim,
thank you once again for all your input. The breadth and depth of your knowledge across so many areas is pretty impressive (I am referring also to all the very many other posts you provided detailed answers to, mine and others!).

The solenoids are custom but don't yet have much details on them as the manufacturer is still working/refining them.

Ref the other coils, there were various projects. Some for welding and extrusion thickness measurement and defect sensing. One was a pemf. Another was a CDI. Some of the boards are being made and other are being tested.

Thank you again!! :)

nfmax:
Can you fit an accelerometer, velometer, or displacement transducer to the solenoid armature, and construct a closed-loop feedback control system? It might give better results (once you get it stable)

ricko_uk:
thank you nfmax for your suggestion,
that's not an option, that's why we need that waveform. :)

nfmax:
Since you want to controllably increase and then decrease the current flowing through the solenoid coil, unless its inductance is very small compared to its resistance you will need to reverse the voltage across it. If I understood your original post correctly you only have a single 12V supply. However it isn't clear if the drive circuit will be powered up at all times, or if you require the 'Gaussian' current waveform to be generated as the supply is turned on & off. Can you clarify, please?

Edit to ask: what is the maximum current? And what is the time scale of the waveform?

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