利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN105785820B 相机音圈马达执行器的整形信号控制方法 有权

相机音圈马达执行器的整形信号控制方法
摘要：
本发明公开了一种相机音圈马达执行器的整形信号控制方法，包含以下步骤：计算整形信号中的每一上升/下降步骤的上升/下降时间；根据每一上升/下降步骤的上升/下降时间计算对应上升/下降步骤的初始上升/下降幅度；根据每一上升/下降步骤的初始上升/下降幅度计算整形信号的上升/下降幅度微调系数；由整形信号的上升/下降幅度微调系数并结合每一上升/下降步骤的初始上升/下降幅度计算得到每一上升/下降步骤的上升/下降幅度的给定值。本发明在充分考虑马达振荡特性中的频率和阻尼系数后，对于马达的振荡具有抑制效果，并且对时钟周期与音圈马达自然振荡周期之间存在的误差具有高容错性。
摘要（英）：

The invention discloses a shaping signal control method for a voice coil actuator of a camera. The method comprises the following steps that rise/fall time of each rise/fall step in a shaping signal is calculated; the initial rise/fall amplitude of the corresponding rise/fall step is calculated according to the rise/fall time of each rise/fall step; a rise/fall amplitude fine tuning coefficient of the shaping signal is calculated according to the initial rise/fall amplitude of each rise/fall step; and a given value of the rise/fall amplitude of each rise/fall step is calculated according to both the rise/fall amplitude fine tuning coefficient of the shaping signal and the initial rise/fall amplitude of each rise/fall step. According to the invention, the frequency and damping coefficient in oscillation characteristic of a motor are taken into full consideration, oscillation of the motor is inhibited, and error between a clock period and a natural oscillation period of the voice coil motor is highly tolerant.

公开/授权文献
0/0