Three-axis lens driving module without position sensing and position control method thereof

• Main Authors: ZHANG JILONG, PAN TAO, OUYANG JIANHUA, ZHANG XUYAO, KE LINXIANG, ZHUO YINGJI
• Format: Patent
• Language: Chinese; English
• Published: 28.04.2023
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ELECTROGRAPHY; GENERATION; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS

The invention discloses a three-axis lens driving module without position sensing and a position control method thereof. The three-axis lens driving module comprises a stator part, a first rotor part, a second rotor part and the like, wherein the image sensor packaging piece of the stator part is provided with a circuit board piece, a driving and position control chip is arranged on the circuit board piece, and the driving and position control chip is respectively provided with an initialization program and a position control program; the position control program can obtain an external gyroscope sensor signal to carry out a closed-loop position control algorithm to obtain an error between a displacement increment estimated value of a movable part of the motor and a value needing to be compensated so as to achieve closed-loop control of precise driving in the X-axis direction, the Y-axis direction and the Z-axis direction. 本发明公开一种无需位置感测的三轴镜头驱动模块及其位置控制方法，包含一静子部、第一动子部、第二动子部等结构；其中：该静子部的图像传感器封装件，设有一电路板件，并在该电路板件上设有