Hello,
I'm working on a starting schematic for a 12V DC brushless motor. The armature resistance is ~0.5ohms, and I would like to limit the starting current to 2A. The motor must start via a push-button switch, and I would prefer not to insert additional resistance into the armature circuit. In order to satisfy the push-button specification, I am not able to manually ramp up the voltage by turning a rheostat. I've thought about using an LM555 monostable timer, but am unsure about how to implement it. I think the best solution might be something that could slowly ramp up the voltage from about 1V.
Thanks in advance for any ideas!
I'm working on a starting schematic for a 12V DC brushless motor. The armature resistance is ~0.5ohms, and I would like to limit the starting current to 2A. The motor must start via a push-button switch, and I would prefer not to insert additional resistance into the armature circuit. In order to satisfy the push-button specification, I am not able to manually ramp up the voltage by turning a rheostat. I've thought about using an LM555 monostable timer, but am unsure about how to implement it. I think the best solution might be something that could slowly ramp up the voltage from about 1V.
Thanks in advance for any ideas!
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