Both electric vehicles and electric bicycles use three-phase induction motors. So if you look at the motor itself, it is an alternating current motor.
To put it simply, it has the form above. It has a permanent magnet on one side and an electromagnet on the other, so it rotates while changing the current in the electromagnet.
Therefore, it cannot be driven directly with direct current, and a device that makes direct current as if it is three-phase alternating current must be inserted in the middle.
A separate booster is not included. If the battery is 48V, the motor also uses a 48V motor, so only the motor driver is inserted in the middle.
Both electric vehicles and electric bicycles use three-phase induction motors. So if you look at the motor itself, it is an alternating current motor.
To put it simply, it has the form above. It has a permanent magnet on one side and an electromagnet on the other, so it rotates while changing the current in the electromagnet.
Therefore, it cannot be driven directly with direct current, and a device that makes direct current as if it is three-phase alternating current must be inserted in the middle.
A separate booster is not included. If the battery is 48V, the motor also uses a 48V motor, so only the motor driver is inserted in the middle.