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1.发明授权Control techniques for motor driven systems utilizing back-EMF measurement techniques 有权利用反电动势测量技术的电机驱动系统的控制技术公开(公告)号：US09121753B2
公开(公告)日：2015-09-01
申请号：US13760622
申请日：2013-02-06
申请人： Alan Patrick Cahill , Gary Casey , John A. Cleary , Eoin Edward English , Christian Jimenez , Javier Calpe Maravilla , Colin G. Lyden , Thomas F. Roche
发明人： Alan Patrick Cahill , Gary Casey , John A. Cleary , Eoin Edward English , Christian Jimenez , Javier Calpe Maravilla , Colin G. Lyden , Thomas F. Roche
CPC分类号： G01H13/00 , H02P25/028 , H02P25/034
摘要： A method and apparatus for automatic resonance detection is disclosed for a motor-driven mechanical system such as a voice coil motor (VCM) in which a resonance detector and driver are provided. The automatic resonance detector is implemented on the same integrated circuit as the driver, and dynamically determines the natural resonant frequency of the VCM driven by the driver. The resonant frequency is determined by measuring the back electromotive force (BEMF) of the VCM, detecting the slope of the BEMF signal, and determining the resonant frequency from the slope of the BEMF signal.
摘要翻译： 公开了一种用于自动共振检测的方法和装置，用于诸如提供谐振检测器和驱动器的音圈电机（VCM）的电动机械系统。 自动谐振检测器在与驱动器相同的集成电路上实现，并且动态地确定由驱动器驱动的VCM的固有谐振频率。 谐振频率通过测量VCM的反电动势（BEMF），检测BEMF信号的斜率以及从BEMF信号的斜率确定谐振频率来确定。
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公开(公告)号：US20160357203A1
公开(公告)日：2016-12-08
申请号：US15174553
申请日：2016-06-06
IPC分类号： G05F1/46
摘要： Embodiments of the present invention may provide an integrated circuit with reduced power loss. The integrated circuit may comprise a processing system and a feedback circuit. The processing system may generate a load signal from a variable power supply, which is external to the integrated circuit. The feedback circuit may compare the load signal and a voltage input from the variable power supply, and based on the comparison, generate a feedback signal for adjusting the variable power supply, thereby reducing power loss.
摘要翻译： 本发明的实施例可以提供具有降低的功率损耗的集成电路。 集成电路可以包括处理系统和反馈电路。 处理系统可以从集成电路外部的可变电源产生负载信号。 反馈电路可以比较负载信号和来自可变电源的电压输入，并且基于比较，产生用于调整可变电源的反馈信号，从而减少功率损耗。
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3.发明申请CONTROL TECHNIQUES FOR MOTOR DRIVEN SYSTEMS UTILIZING BACK-EMF MEASUREMENT TECHNIQUES 有权利用反电动势测量技术的电机驱动系统的控制技术公开(公告)号：US20140217945A1
公开(公告)日：2014-08-07
申请号：US13760622
申请日：2013-02-06
申请人： Alan Patrick Cahill , Gary Casey , John A. Cleary , Eoin Edward English , Christian Jimenez , Javier Calpe Maravilla , Colin G. Lyden , Thomas F. Roche
发明人： Alan Patrick Cahill , Gary Casey , John A. Cleary , Eoin Edward English , Christian Jimenez , Javier Calpe Maravilla , Colin G. Lyden , Thomas F. Roche
CPC分类号： G01H13/00 , H02P25/028 , H02P25/034
摘要： A method and apparatus for automatic resonance detection is disclosed for a motor-driven mechanical system such as a voice coil motor (VCM) in which a resonance detector and driver are provided. The automatic resonance detector may be implemented on the same integrated circuit as the driver, and dynamically determines the natural resonant frequency of the VCM driven by the driver. The resonant frequency is determined by measuring the back electromotive force (BEMF) of the VCM, detecting the slope of the BEMF signal, and determining the resonant frequency from the slope of the BEMF signal.
摘要翻译： 公开了一种用于自动共振检测的方法和装置，用于诸如提供谐振检测器和驱动器的音圈电机（VCM）的电动机械系统。 自动共振检测器可以在与驱动器相同的集成电路上实现，并且动态地确定由驱动器驱动的VCM的固有谐振频率。 谐振频率通过测量VCM的反电动势（BEMF），检测BEMF信号的斜率以及从BEMF信号的斜率确定谐振频率来确定。
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