Patent ID: 11949362
Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A power tool, comprising:
a motor;
a power switching network configured to drive the motor; and
a motor controller in communication with the power switching network and including an electronic processor and a memory, and the motor controller configured to:
receive a desired speed signal,
monitor a speed of the motor,
generate an error value signal between the desired speed signal and the monitored speed,
generate a conduction angle signal based on the generated error value signal, wherein the conduction angle signal is a splined conduction angle signal,
determine whether the conduction angle signal is greater than the error value signal,
increase a conduction angle output by the power switching network in response to the conduction angle signal being determined to be greater than the error value signal,
decrease the conduction angle output by the power switching network in response to the conduction angle signal being determined to be less than the error value signal,
determine whether the conduction angle is less than a maximum threshold value, and
maintain the conduction angle in response to determining that the conduction angle is not less than the maximum threshold value.