Patent ID: 11897339
Assignee: MAKITA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 1:
2. The cart according to claim 1, further comprising:
a second driving wheel;
a second motor configured to rotate the second driving wheel;
a second motor drive circuit configured to drive the second motor;
a second motor brake circuit configured to electrically brake the second motor; and
a second rotation speed sensor configured to detect a rotation speed of the second motor, wherein
the control device is configured to control the second motor via the second motor drive circuit and the second motor brake circuit based on a target rotation speed of the second motor and the rotation speed detected by the second rotation speed sensor,
the second motor brake circuit includes a second semiconductor element configured to operate in a third mode and a fourth mode in response to a second control input signal,
second brake current for electrically braking the second motor flows in the second semiconductor element,
when the second semiconductor element operates in the third mode, the magnitude of the second brake current changes substantially linearly when the second control input signal changes,
when the second semiconductor element operates in the fourth mode, the magnitude of the second brake current changes less than the magnitude of the second brake current changes in the third mode when the second control input signal changes,
the second motor brake circuit is configured to operate the second semiconductor element in the third mode when braking the second motor, and
each of the target rotation speed of the motor and the target rotation speed of the second motor is set individually.