Actuator driving apparatus and camera module including the same
US10241348B2 · kind B2 · utility
2Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2016 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Jul 14, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0069
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An actuator and a camera module including the same are provided. The actuator driving apparatus includes a detector configured to apply a reference signal to a driving coil of an actuator and detect a coil current flowing in the driving coil, a calculator configured to determine a position of a lens carrier based on the coil current, and a driver configured to drive the actuator based on the position of the lens carrier and a position control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.