The 20 servos and 1 stepper motor are powered by a 20V power supply and a 5V power supply. The 20V power supply is connected to the stepper motor driver and it also supplies 20V to the buck converter. The stepper motor driver is set to allow the stepper motor to pull up to 300mA. The buck converter converters 20V to 5V and it outputs 2V of current. The 5V from the buck converter powers 10 of the servos, and the other 10 servos are powered by the 5V power supply.
One of the challenges of this project was figuring out how to supply the 20 servos with enough current while still staying within our budget. Each servo can draw up to 500mA at peak operating power, and they normally draw about 250mA. Since our system really relies on the power of the servos, we wanted to ensure they would have enough current. We could have bought a more expensive power supply with high current output, but instead we pieced together a couple of power supplies to make the system work.
One of the challenges of this project was figuring out how to supply the 20 servos with enough current while still staying within our budget. Each servo can draw up to 500mA at peak operating power, and they normally draw about 250mA. Since our system really relies on the power of the servos, we wanted to ensure they would have enough current. We could have bought a more expensive power supply with high current output, but instead we pieced together a couple of power supplies to make the system work.