Title:
VOICE COIL ACTUATOR DRIVER SIGNAL GENERATOR
Document Type and Number:
WIPO Patent Application WO/2021/027312
Kind Code:
A1
Abstract:
An apparatus and a method for generating a voice coilactuator (VCA) signal is described. A drive signal is generated to drive the VCA and a resulting current signal from the VCA detected. The frequency of the drive signal isadapted in response to detecting an asymmetry in the current signal.
Inventors:
GAUTAMA TEMUJIN (GB)
Application Number:
PCT/CN2020/085825
Publication Date:
February 18, 2021
Filing Date:
April 21, 2020
Export Citation:
Assignee:
GOODIX TECH HK COMPANY LIMITED (CN)
International Classes:
H02K15/00; G03B13/34
Foreign References:
| CN108155846A | 2018-06-12 | |||
| CN102290924A | 2011-12-21 | |||
| CN106842771A | 2017-06-13 | |||
| CN108668056A | 2018-10-16 | |||
| CN108258973A | 2018-07-06 | |||
| CN107342719A | 2017-11-10 | |||
| US20100080545A1 | 2010-04-01 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
Download PDF: