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Nov 16, 2018 at 15:44 comment added Javier Loureiro well, the IC is a stepper motor driver, so I omitted the signals to the MCU , and many other signals for the board. It is a 4 layer board, and one is the gnd plane. The stepper driver has two h bridges that power two coils from vmotor. The 4 pins are connected directly to the motos. My question is about the return path to the power connector on the board, placed far from the ic drivers and the motors.
Nov 16, 2018 at 13:58 comment added Marcus Müller @JavierLoureiro thanks for the schematic. Now, my question really is: what are these pins that you connect there? But, this is progress. So, these ICs (whatever they do, and whatever pins they have) would be directly at the output connectors, right? And the capacitors would be as close as possible to these, too, right? Where would you even need a ground plane aside from the ground side of the capacitor? In your schematic, that's the only place where ground is used... So, I don't see where, geometrically as well as electronically, you'd have that split ground plane.
Nov 16, 2018 at 13:22 comment added Harry Svensson There is an embedded schematic drawing system in your edit if you press ctrl+m while in edit mode. But I'm fairly certain that even if you made this with a proper schematic, it won't help anyone. - We shall wait for people with mind reading skills to come.
Nov 16, 2018 at 12:56 comment added Javier Loureiro done! i will never make al living with my drawing skills
Nov 16, 2018 at 12:56 history edited Javier Loureiro CC BY-SA 4.0
included a hand made schematic
Nov 16, 2018 at 12:46 comment added Marcus Müller yes, I got that. Draw a schematic.
Nov 16, 2018 at 12:46 comment added Javier Loureiro this is a board with 3 stepper motor drivers , and I would like to optimize the ground plane for all the powe zone of the board.
Nov 16, 2018 at 12:45 comment added Marcus Müller Not getting any clearer sorry. Please draw a schematic.
Nov 16, 2018 at 12:44 comment added Javier Loureiro the current goes to the driver... and all the datasheets recommend the capacitor on the driver input.
Nov 15, 2018 at 11:14 comment added Marcus Müller sorry, not sure what you have in mind; can you draw in a schematic that shows what these capacitors connect? Why do you want to enforce that? If you want to enforce that, why not put the capacitor at the motor connector instead of somewhere else? Really confused.
Nov 15, 2018 at 11:01 history asked Javier Loureiro CC BY-SA 4.0