Patent ID: 11937688
Assignee: SMART CHIP MICROELECTRONIC CO. LIMITED
Field: Medical technology (Instruments)
Classification: CPC A  G  H | IPC A  G  H

Claim 7:
8. The toothbrush according to claim 1, wherein the switching signals are consecutive and are distributed in time slots having a uniform time slot width tsw to define the switching frequency; and/or wherein a switching signal comprises an on-portion having an on-portion duration and an off-portion having an off-portion duration in a time slot having a time slot width tsw, wherein the time slot width is the reciprocal of the switching frequency fs such that tsw=1/fs, wherein the drive circuitry is configured to have a drive current component flowed through the drive circuit in response of an on-portion which is in force, and the drive current which flows through the drive circuit during the signal packet duration of a signal packet which is in force equals sum of on-portion durations of all on-portions of the signal packet in force and determines amplitude of movement of the drive mechanism during the signal packet duration of the signal packet which is in force.