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公开(公告)号：US09035587B2
公开(公告)日：2015-05-19
申请号：US13827031
申请日：2013-03-14
Applicant: Cirrus Logic, Inc.
Inventor： John Laurence Melanson
Abstract: A system and method of controlling a motor are disclosed. The system comprises a current observer for observing a motor current at a sampling rate and a proportionate-integral controller that provides a proportionate path and an integral path and at least forms part of a proportionate-integral control loop based on the motor current. The current observer observes a motor current of the motor at a sampling rate. The proportionate path calculates, for a present cycle of the sampling rate, a proportionate path term for the proportionate-integral control loop based on the motor current. The system outputs a respective motor output voltage to the motor in conformity with the proportionate path term calculated for the present cycle. In conformity with the motor current, the integral path calculates an integral path term for another respective motor output voltage to be used in a later cycle of the sampling rate.
Abstract translation: 公开了一种控制电动机的系统和方法。 该系统包括用于以采样率观察电动机电流的当前观察者，以及提供比例路径和积分路径的比例积分控制器，并且至少形成基于电动机电流的比例积分控制回路的一部分。 当前的观察者以采样率观察电动机的电动机电流。 比例路径针对采样率的当前周期计算基于电动机电流的比例积分控制回路的比例路径项。 系统根据为本周期计算的比例路径项将相应的电动机输出电压输出到电动机。 根据电动机电流，积分路径计算在随后的采样率循环中使用的另一个相应的电动机输出电压的积分路径项。
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公开(公告)号：US09425725B2
公开(公告)日：2016-08-23
申请号：US13780466
申请日：2013-02-28
Applicant: Cirrus Logic, Inc.
Inventor： John Laurence Melanson
Abstract: Systems and methods of estimating a motor position of a motor are disclosed. One exemplary system and method involve observing motor currents of the motor at two different times. Average motor voltages of the motor are determined between the two different times. Average back electro motive force (BEMF) values of the motor are calculated between the two different times. The BEMF values are in conformity with the observed motor currents and the average motor voltages. Another exemplary system and method for estimating a rotor position of a motor involve a motor position estimator that receives information from the motor and estimates a rotor position for a future time. The future time corresponds approximately to a desired target current,
Abstract translation: 公开了一种估计电动机的电动机位置的系统和方法。 一个示例性系统和方法涉及在两个不同时间观察电动机的电动机电流。 在两个不同时间之间确定电动机的平均电动机电压。 在两个不同时间之间计算电机的平均后向电动力（BEMF）值。 BEMF值与观察到的电机电流和平均电机电压一致。 用于估计电动机的转子位置的另一示例性系统和方法涉及一种电动机位置估计器，其从电动机接收信息并估计未来时间的转子位置。 未来时间大致对应于期望的目标电流，
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公开(公告)号：US20140265968A1
公开(公告)日：2014-09-18
申请号：US13827031
申请日：2013-03-14
Applicant: Cirrus Logic, Inc.
Inventor： John Laurence Melanson
IPC: H02P6/18
Abstract: A system and method of controlling a motor are disclosed. The system comprises a current observer for observing a motor current at a sampling rate and a proportionate-integral controller that provides a proportionate path and an integral path and at least forms part of a proportionate-integral control loop based on the motor current. The current observer observes a motor current of the motor at a sampling rate. The proportionate path calculates, for a present cycle of the sampling rate, a proportionate path term for the proportionate-integral control loop based on the motor current. The system outputs a respective motor output voltage to the motor in conformity with the proportionate path term calculated for the present cycle. In conformity with the motor current, the integral path calculates an integral path term for another respective motor output voltage to be used in a later cycle of the sampling rate.
Abstract translation: 公开了一种控制电动机的系统和方法。 该系统包括用于以采样率观察电动机电流的当前观察者，以及提供比例路径和积分路径的比例积分控制器，并且至少形成基于电动机电流的比例积分控制回路的一部分。 当前的观察者以采样率观察电动机的电动机电流。 比例路径针对采样率的当前周期计算基于电动机电流的比例积分控制回路的比例路径项。 系统根据为本周期计算的比例路径项将相应的电动机输出电压输出到电动机。 根据电动机电流，积分路径计算在随后的采样率循环中使用的另一个相应的电动机输出电压的积分路径项。
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公开(公告)号：US20140239863A1
公开(公告)日：2014-08-28
申请号：US13780466
申请日：2013-02-28
Applicant: CIRRUS LOGIC, INC.
Inventor： John Laurence Melanson
IPC: H02P21/00
Abstract: Systems and methods of estimating a motor position of a motor are disclosed. One exemplary system and method involve observing motor currents of the motor at two different times. Average motor voltages of the motor are determined between the two different times. Average back electro motive force (BEMF) values of the motor are calculated between the two different times. The BEMF values are in conformity with the observed motor currents and the average motor voltages. Another exemplary system and method for estimating a rotor position of a motor involve a motor position estimator that receives information from the motor and estimates a rotor position for a future time. The future time corresponds approximately to a desired target current,
Abstract translation: 公开了一种估计电动机的电动机位置的系统和方法。 一个示例性系统和方法涉及在两个不同时间观察电动机的电动机电流。 在两个不同时间之间确定电动机的平均电动机电压。 在两个不同时间之间计算电机的平均后向电动力（BEMF）值。 BEMF值与观察到的电机电流和平均电机电压一致。 用于估计电动机的转子位置的另一示例性系统和方法涉及一种电动机位置估计器，其从电动机接收信息并估计未来时间的转子位置。 未来时间大致对应于期望的目标电流，
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