You cannot limit the amps and accelerate at the same speed using the same motors.
So whether I use a 6.5A source or a 9A source with the same voltage, that the motor won’t accelerate at the same speed, even though they’re both exceeding the peak draw current and below the overcurrent protection of the H-bridge?
If the answer to that is “no, they will accelerate at the same speed”, that’s exactly why I’m asking my question, and why I don’t want to slowly increase the motor speed.
Using an under-powered power supply would possibly limit the current, but will also likely cause other problems
That’s why I want to stick with the unit I have now with it’s abundant amperage but limit how much current goes to each H-bridge…
all you can do is “limit current” with current limiting drivers
That’s fine… that’s all I’m asking for.
Show they datasheet of the motors, and from that you can determine how much current they require, or you can measure the current with a multimeter. The ntc thermistor may work, if the problem is the inrush current of the motors, but since we do not know what motors you are using, and their current requirements, it is impossible to say
I don’t remember any specifics about the motors beyond being Mabuchi RS-555. There’s some variance between these RS-555 motors but it seems the highest stall current is a little past 9A.
This seems simple.
Yes… I’m well aware of all that. That’s pretty much the basis behind my question.
Stating you “want” to provide 6-10a per motor using a controller that won’t control current and can’t switch past 10a makes me laugh inside…
What “controller”? The H-bridge? Because if you actually read my question (which it doesn’t seem you did) I want to prevent tripping the OCP of the H-bridge by limiting the amount of current it takes, but, without globally reducing the power supply itself.
If you’re going to be condescending, I don’t want an answer from you.
- You put individual 6 amp supplies on each motor.
- You design and build 6 amp current limiting circuits for each motor.
Are you serious right now? This is what I’ve been asking how to do the entire time. There’s no “advanced physics” that I know, but people like you just keep wasting time with pedantic and condescending remarks. Drop the ego you suspect I have, re-read the last sentence in my original post, and you’ll realize the only thing I was asking how to do were the options you provided (mostly #2).
I prefer to stick with the computer PSU I have since 35A is plenty if I limit 6A per motor. But, I don’t know how to to do that, hence me being here…
- You buy new H bridges with internal current limiting.
If that was the best option to me, I wouldn’t be here. But since the H-bridges are known to do what I want without overheating, I don’t have a compelling reason to get rid of them.