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Electrical Engineering
Current Surge Capacitor Calculator
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[QUOTE="Rive, post: 6091904, member: 324024"] Adding more caps is not the right way to go. You should check the power consumption of the motor and also: do some software tweaking to allow some kind of soft-start for the motor. The high current draw at 0 RPM will just deplete any (sane sized) cap anyway and bring the input voltage below the starting level of the CPU board. Alternative is to use a 12V 2A PSU and put the motor on a separate regulator. The power stored in a cap grows with U[SUP]2[/SUP], so you would have ~ six times of power to start the motor in a 12V cap. Ui.: it is also a possible solution to put a diode on the power in of the Pi and add caps [B]after[/B] the diode. That would keep up the voltage on the module while the motor starts up. But you have to check the undervoltage threshold of the module first. [/QUOTE]
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