Voice coil motor control method and system and controller

A voice coil motor and control method technology, applied in control systems, AC motor control, DC motor speed/torque control, etc., can solve the problems of complex peripheral circuits and low reliability, and achieve simple peripheral circuits and high reliability , Avoid the effect of electromagnetic reflection and mechanical vibration interference

Inactive Publication Date: 2017-03-22
SHENZHEN THZ SYST EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the current optical delay devices usually use analog signals to perform closed-loop control on the voice coil motor. The analog signal is easily disturbed by the electromagnetic reflection and mechanical vibration of the voice coil motor. The reliability is low, and the peripheral circuit is more complicated.

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  • Voice coil motor control method and system and controller
  • Voice coil motor control method and system and controller
  • Voice coil motor control method and system and controller

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Embodiment Construction

[0031] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the embodiment of the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0032] The terms "comprising" and any variations thereof in the description and claims of the present invention and the above drawings are intended to cover non-exclusive inclusion. For example, a process, method or system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also inc...

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Abstract

An embodiment of the invention provides a voice coil motor control method and system and a controller. A voice coil motor is electrically connected with a drive circuit and is mechanically connected with a displacement sensor; and the drive circuit and the displacement sensor are electrically connected with the controller. The voice coil motor is subjected to closed-loop control through digital signals, which can be prevented from interference of electromagnetic reflection and mechanical vibration of the voice coil motor, so that reliability is high; and a peripheral circuit is simple.

Description

technical field [0001] Embodiments of the present invention belong to the technical field of voice coil motor control, and in particular relate to a voice coil motor control method, system and controller. Background technique [0002] Because of its high frequency response and high precision, voice coil motors are widely used in optical delay devices of terahertz time-domain spectrometers with high signal frequencies. [0003] However, the current optical delay devices usually use analog signals to perform closed-loop control on the voice coil motor. The analog signal is easily interfered by the electromagnetic reflection and mechanical vibration of the voice coil motor, has low reliability, and the peripheral circuit is more complicated. Contents of the invention [0004] Embodiments of the present invention provide a voice coil motor control method, system, and controller. Digital signals are used to perform closed-loop control on the voice coil motor, which can avoid in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/034H02P7/025
CPCH02P7/00H02P25/034
Inventor 李建伟潘奕彭世昌丁庆
Owner SHENZHEN THZ SYST EQUIP CO LTD
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