Idle stepper plan for Proteus

[rusefillc]

I have six pin stepper idle

40 OHm between middle +12 wires and other ends of 80 OHm coils. Coils A and B seem to NOT be connecter.

My preference would be to use two Proteus H-bridges. What do I do with the middle +12?

What do I do about those being connected on the vehicle? would H-bridge plan not work until +12 middle pins are disconnected?

full schematics https://github.com/rusefi/rusefi/wiki/Vault-of-Mitsubishi#1995-3000gt

[rusefillc]

@andreika-git @mck1117 ^^^

[mck1117]

that's a unipolar stepper, not a bipolar stepper, so it needs yet another different control mode, and four lowside outputs

[mck1117]

[rusefillc]

Would cutting those +12v wires make it a bipolar stepper?

[mck1117]

It may work, but it's not very PnP. It's possible the motor may be too weak if we rewired it as a bipolar stepper.

[rusefillc]

So we use four low sides for stepper coils great news we have those on Proteus

@mck1117 do we need fly-backs on those lines?

[rusefillc]

Let's see if we have enough Proteus low sides, let's add fly-backs on the board just in case.

[Qwerty-OFF]

[rusefillc]

@mck1117 does this look right?

[mck1117]

looks fine to me