Which is the better choice?
APS 6374 sensored
APS 6374 sensored v2
Turnigy sk8 6374
If there are any better motors in eu, please suggest.
I dont want an sk3 because I dont want to bother with encoder.(I have it on my sk8 but it required quite alot of tweaking before it ran perfectly.)
The S in xt90 stands for antispark. All xt90s is antispark already. That is why people make loopkeys out of it. You only need 1 of them in the system. On top of that, the unity has a built in antispark. So if you loopkey with xt90s on unity that’s just a ton of antisparks that won’t really be useful. But no harm either.
@Venom121212 the purpose of the antispark is to prevent an in-rush of current on connection (the spark), which can pulse a voltage higher than system allows, kind of like how a boost converter works, but in this case undesirable. The resistor in the XT90S slows this down and prevents it from happening. The unity however, has a mosfet antispark, which means that if the fets are all working properly, then the resistor on the XT90S does nothing, because the unity will not power on after connection anyway, no electricity flows. Ultimately, the antispark mechanism is done by the mosfets turning on when you trigger the unity. So put all the antispark before that you want, but the job is still done by the mosfets at the end.
The XT90S is special because it is a 2 stage connector. The resistor hits first, letting power through slowly, (this only takes a fraction of a second to charge), then the main body of the connector hits, at which point voltage has been equalized by the initial resistor section and now full power can flow. Wiring a resistor to a switch would mean full power goes through the resistor, it’ll blow in a second. However: you could have a 2 stage switch, 1st stage connecting through resistor, second stage connecting full power. But the switch would have to go between 1 and 2 very fast.
The speed doesn’t matter, the resistor and main barrel is linked together. What would be bad is: leaving it partially plugged in, then power would flow only through the first section. Or 2: plugging it in so fast that the resistor did not have time to balance the power. You would have to connect it within a few ms. So you’d have to be like superman or something.