Patent ID: 11876474
Assignee: SHANGHAI AWINIC TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  B | IPC G  H

Claim 18:
19. A driving chip comprising: a register, a static random-access memory and a drive controller, wherein
the static random-access memory is configured to pre-store a first braking waveform signal; and
the register is configured to, in response to a first control instruction, trigger the drive controller to read the first braking waveform signal in the static random-access memory to perform a first braking process on a linear resonance actuator,
wherein the first braking waveform signal comprises a first pulse and a second pulse, and the first pulse is outputted prior to the second pulse, and an amplitude AMP(i) of the first pulse and an amplitude AMP(i+1) of the second pulse meet the following equation:

AMP(i+1)=floor*AMP(i)/2m);

wherein i represents an integer not less than 1, N represents a pulse amplitude attenuation factor, m represents the number of bits of the pulse amplitude attenuation factor stored in a register, and a floor function is a ROUNDDOWN function.