公开(公告)号：US08587232B2

公开(公告)日：2013-11-19

申请号：US13746420

申请日：2013-01-22

Applicant: Lynn R. Kern

Inventor： Lynn R. Kern

IPC: H02P1/04

CPC classification number: H02P6/205 ,  H02P6/21 ,  H02P6/24

Abstract: A system and method are presented for aligning a rotor in a motor. The motor may include the rotor and a plurality of pairs of electromagnets. One or more pairs of electromagnets may be excited at a first excitation level. The one or more pairs of electromagnets may be less than all of the plurality of pairs of electromagnets. The excitation of the one or more pairs of electromagnets may be increased to a second excitation level over a first period of time. The excitation of the one or more pairs of electromagnets may be decreased to a third excitation level over a second period of time. Exciting the one or more pairs of electromagnets, increasing the excitation, and decreasing the excitation may cause the rotor to stop in a known position.

Abstract translation: 提出了一种用于使电动机中的转子对准的系统和方法。 马达可以包括转子和多对电磁体。 可以在第一激发电平下激励一对或多对电磁体。 一对或多对电磁体可以小于多对电磁体的全部。 一对或多对电磁体的激励可以在第一时间段内增加到第二激发电平。 一对或多对电磁体的激励可以在第二时间段内减小到第三激发电平。 激励一对或多对电磁体，增加激励和减少激励可能导致转子在已知位置停止。

公开(公告)号：US20110291597A1

公开(公告)日：2011-12-01

申请号：US12790161

申请日：2010-05-28

Applicant: Lynn R. Kern ,  James P. McFarland ,  Joe A. Marrero

Inventor： Lynn R. Kern ,  James P. McFarland ,  Joe A. Marrero

IPC: H02P6/20

CPC classification number: H02P6/20

Abstract: System and method for aligning and initiating rotation of a rotor in a motor. The motor may include the rotor and a plurality of pairs of electromagnets. The energy needed for alignment of the rotor of the motor may be used to generate the first movement in forced commutation. The energy needed for alignment may be combined with the initial energy to start the motor. The logic may be configured to align the rotor of the motor by energizing the three coils of the motor. Pulse width modulation may be applied to the first coil to control current on the coils; when a maximum PWM duty cycle is reached, the coil not required to rotate the correct direction may be released, thereby initiating motion in a rotor of the three phase motor. A rotation period may be determined. One or more pairs of electromagnets of the plurality of pairs of electromagnets may be excited at a first excitation level. The excitation level may be increased, over a second period of time, to a second excitation level. The second excitation level may be a higher excitation level than the first excitation level. The rotation period may be decreased over the first and second periods of time.

Abstract translation: 用于对齐和启动电机中转子旋转的系统和方法。 马达可以包括转子和多对电磁体。 马达转子对准所需的能量可用于产生强制换向的第一运动。 对准所需的能量可以与初始能量相结合以起动电动机。 逻辑可以被配置成通过给电动机的三个线圈通电来对准电动机的转子。 可以对第一线圈施加脉宽调制以控制线圈上的电流; 当达到最大PWM占空比时，不需要旋转正确方向的线圈可能被释放，从而在三相电动机的转子中起动运动。 可以确定旋转周期。 多对电磁体中的一对或多对电磁体可以在第一激发水平被激发。 励磁电平可以在第二时间段内增加到第二激励电平。 第二激励电平可以是比第一激励电平更高的激励电平。 旋转周期可以在第一和第二时间段内减小。

公开(公告)号：US20110115421A1

公开(公告)日：2011-05-19

申请号：US12620656

申请日：2009-11-18

Applicant: Lynn R. Kern ,  James P. McFarland

Inventor： Lynn R. Kern ,  James P. McFarland

IPC: H02P6/20

CPC classification number: H02P6/20

Abstract: System and method for initiating rotation of a rotor in a motor. The motor may include the rotor and a plurality of pairs of electromagnets. A rotation period may be determined. One or more pairs of electromagnets of the plurality of pairs of electromagnets may be excited at a first excitation level. The excited one or more pairs of electromagnets may be determined based on the rotation period. The excitation level may be decreased, over a first period of time, to a second excitation level. The second excitation level may be a lower excitation level than the first excitation level. The excitation level may be increased, over a second period of time, to a third excitation level. The third excitation level may be a higher excitation level than the second excitation level. The rotation period may be decreased over the first and second periods of time.

Abstract translation: 用于启动电机中转子旋转的系统和方法。 马达可以包括转子和多对电磁体。 可以确定旋转周期。 多对电磁体中的一对或多对电磁体可以在第一激发水平被激发。 激励的一对或多对电磁体可以基于旋转周期来确定。 励磁电平可以在第一时间段内降低到第二激励电平。 第二激励电平可以是比第一激励电平低的激励电平。 激励电平可以在第二时间段内增加到第三激发电平。 第三激励电平可以是比第二激励电平更高的激励电平。 旋转周期可以在第一和第二时间段内减小。

公开(公告)号：US20100315029A1

公开(公告)日：2010-12-16

申请号：US12632495

申请日：2009-12-07

Applicant: Lynn R. Kern ,  James P. McFarland

Inventor： Lynn R. Kern ,  James P. McFarland

IPC: H02P6/14

CPC classification number: H02P6/14 ,  H02P2209/07

Abstract: A control method for a sensor-less, brushless, three-phase DC motor. The effects of commutation on the motor may be minimized using a sinusoidal current drive on each electromagnet. The “off” times and/or the “on” times of the drive transistors controlling the electromagnets in a full “H-bridge” configuration drive scheme may be delayed. By overlapping the drive signals to the electromagnets with respect to a commutation command, the effects of switching between electromagnets may be minimized. In addition, the “on” and “off” times may also be adjusted during the overlapping to further ensure that the coils continuously conduct current, and that the current does not change direction during the switching. The delays, and hence the overlap times of the coil drive signals may be dynamically controlled, for example by using digital timers, making the response predictable and easily controlled. The present position of the rotor in the motor may be determined using Hall sensors configured in the motor, or it may be determined using the un-energized electromagnets in a motor without Hall sensors.

Abstract translation: 无传感器，无刷，三相直流电机的控制方法。 可以使用每个电磁体上的正弦电流驱动来最小化电机上的换向效应。 在完全“H桥”配置驱动方案中控制电磁体的驱动晶体管的“关”时间和/或“开”时间可能会延迟。 通过将驱动信号相对于换向指令重叠到电磁体，可以使电磁铁之间切换的效果最小化。 此外，还可以在重叠期间调整“开”和“关”次，以进一步确保线圈连续导通电流，并且电流在切换期间不改变方向。 可以例如通过使用数字定时器来动态地控制线圈驱动信号的延迟，并因此线圈驱动信号的重叠时间，从而使响应可预测并且易于控制。 电动机中的转子的当前位置可以使用配置在电动机中的霍尔传感器来确定，或者可以使用没有霍尔传感器的电动机中的未通电的电磁体来确定。

公开(公告)号：US20100102766A1

公开(公告)日：2010-04-29

申请号：US12393996

申请日：2009-02-26

Applicant: Lynn R. Kern ,  James P. McFarland

Inventor： Lynn R. Kern ,  James P. McFarland

IPC: H02P6/18

CPC classification number: H02P6/182

Abstract: A control method for a sensor-less, brushless, three-phase DC motor. A pulse-width modulation (PWM) duty cycle may be calculated. A voltage induced by rotation of a rotor may be sampled at a first expected zero crossing value to produce a first sampled voltage value. An average of a plurality of sampled voltage values, including voltage values sampled at a plurality of prior expected zero crossing values and the first sampled voltage value, may be calculated. The first sampled voltage value may be subtracted from the calculated average to produce a delta zero crossing error. The delta zero crossing error may be multiplied by a first constant representing electromechanical properties of the motor to produce a representation of an angular velocity. One or more time values may be generated based on the representation of the angular velocity. Operation of the motor may be controlled based on the one or more time values and the PWM duty cycle.

Abstract translation: 无传感器，无刷，三相直流电机的控制方法。 可以计算脉冲宽度调制（PWM）占空比。 可以在第一预期过零值处对由转子旋转引起的电压进行采样，以产生第一采样电压值。 可以计算多个采样电压值的平均值，包括在多个先前预期过零值处采样的电压值和第一采样电压值。 可以从计算的平均值中减去第一采样电压值，以产生Δ零交叉误差。 Δ过零误差可以乘以表示电机的机电特性的第一常数以产生角速度的表示。 可以基于角速度的表示来生成一个或多个时间值。 可以基于一个或多个时间值和PWM占空比来控制电动机的操作。

公开(公告)号：US09385641B2

公开(公告)日：2016-07-05

申请号：US12620656

申请日：2009-11-18

Applicant: Lynn R. Kern ,  James P. McFarland

Inventor： Lynn R. Kern ,  James P. McFarland

IPC: H02K29/06 ,  H02P6/20

CPC classification number: H02P6/20

Abstract: System and method for initiating rotation of a rotor in a motor. The motor may include the rotor and a plurality of pairs of electromagnets. A rotation period may be determined. One or more pairs of electromagnets of the plurality of pairs of electromagnets may be excited at a first excitation level. The excited one or more pairs of electromagnets may be determined based on the rotation period. The excitation level may be decreased, over a first period of time, to a second excitation level. The second excitation level may be a lower excitation level than the first excitation level. The excitation level may be increased, over a second period of time, to a third excitation level. The third excitation level may be a higher excitation level than the second excitation level. The rotation period may be decreased over the first and second periods of time.

Abstract translation: 用于启动电机中转子旋转的系统和方法。 马达可以包括转子和多对电磁体。 可以确定旋转周期。 多对电磁体中的一对或多对电磁体可以在第一激发水平被激发。 激励的一对或多对电磁体可以基于旋转周期来确定。 励磁电平可以在第一时间段内降低到第二激励电平。 第二激励电平可以是比第一激励电平低的激励电平。 激励电平可以在第二时间段内增加到第三激发电平。 第三激励电平可以是比第二激励电平更高的激励电平。 旋转周期可以在第一和第二时间段内减小。

公开(公告)号：US20150208598A1

公开(公告)日：2015-07-30

申请号：US14540053

申请日：2014-11-13

Applicant: Lynn R. Kern

Inventor： Lynn R. Kern

IPC: A01G31/02 ,  A01G1/00

CPC classification number: A01G31/02 ,  Y02P60/216

Abstract: An improved hydroponic nutrient delivery gardening system apparatus is described. This improved hydroponic delivery gardening system apparatus improves upon existing systems by minimizing the effects of sunlight and heat on the nutrient solution system without the use of an external nutrient cooling system, improve nutrient availability to roots, improve oxygen availability to roots, and improve the consistency of, and the ability to accurately measure, the pH of the media and nutrient mix.

Abstract translation: 描述了改进的水培营养输送园艺系统装置。 这种改进的水培输送园艺系统设备通过最小化阳光和热量对养分溶液系统的影响而改善现有系统，而不使用外部营养冷却系统，改善对根的营养可用性，提高对根的氧气可利用性并提高一致性 以及准确测量培养基和营养组合物pH值的能力。

公开(公告)号：US08872795B2

公开(公告)日：2014-10-28

申请号：US13605799

申请日：2012-09-06

Applicant: Lynn R. Kern

Inventor： Lynn R. Kern

IPC: G06F3/045 ,  G06F3/041

CPC classification number: G06F3/045 ,  G06F3/0416

Abstract: A resistive sensing touch panel may include row receiver tracks and column drive tracks. A controller may send and receive control signals and sense signals, respectively, to and from the resistive touch panel. The resistive touch panel may provide sense signals when a touch of the panel is detected. The sense signals may be sampled on a number of rows. When sampling a given row, the controller may change the termination of that row by coupling the end of the sampled row to a resistor having a higher value then terminating resistors coupled to the end of non-sampled rows that are adjacent to the sampled row. The controller may further pull the terminating resistors coupled to the end of the non-sampled adjacent rows to a supply rail voltage while the sampled row is being sampled.

Abstract translation: 电阻感测触摸面板可以包括行接收器轨道和列驱动轨道。 控制器可以分别发送和接收控制信号并且感测来自电阻式触摸面板的信号。 当检测到面板的触摸时，电阻式触摸面板可以提供感测信号。 感测信号可以在多行上采样。 当给定行进行采样时，控制器可以通过将采样行的末端耦合到具有较高值的​​电阻器来改变该行的终止，然后终止电阻器耦合到与采样行相邻的非采样行的末端。 当采样的行被采样时，控制器可以进一步将耦合到未采样的相邻行的端部的终端电阻拉到电源轨电压。

公开(公告)号：US20120049776A1

公开(公告)日：2012-03-01

申请号：US12872834

申请日：2010-08-31

Applicant: Lynn R. Kern

Inventor： Lynn R. Kern

IPC: H02P6/18

CPC classification number: H02P6/182 ,  H02P7/04

Abstract: A control method for a sensor-less, brushless, three-phase DC motor. The stator coil in the electromagnets inside the motor may be used as the inductive element through which a voltage regulator can regulate the current as a means of regulating the output voltage. The value of the control signal provided to the drivers controlling power to the coils may be calculated based on at least the rail voltage, as measured in real time. This allows for a wide variation of input voltages, while maintaining a relatively constant output power to the motor. In general, by taking into account the value of the rail voltage when determining the final value of the control signal that is applied to the stator coils, the maximum current through the stator coils may be scaled to the same magnitude current that would be expected to flow through the coils if the rail voltage were the rated (nominal) fan/motor voltage, even when the actual rail voltage is different, e.g. higher than the rated fan/motor voltage.

Abstract translation: 无传感器，无刷，三相直流电机的控制方法。 电动机内的电磁铁中的定子线圈可以用作电感元件，电压调节器可以通过电感元件调节电流作为调节输出电压的手段。 可以基于至少实时测量的轨道电压来计算提供给控制线圈功率的驱动器的控制信号的值。 这允许输入电压的宽的变化，同时保持对电动机的相对恒定的输出功率。 通常，通过考虑在确定施加到定子线圈的控制信号的最终值时轨道电压的值，通过定子线圈的最大电流可以被缩放到与预期相同的幅度电流 如果轨道电压是额定（标称）风扇/电机电压，即使实际轨道电压不同，也可以流过线圈，例如 高于额定风扇/电机电压。

公开(公告)号：US20100215510A1

公开(公告)日：2010-08-26

申请号：US12393571

申请日：2009-02-26

Applicant: Chao-Ming Tsai ,  Lynn R. Kern

Inventor： Chao-Ming Tsai ,  Lynn R. Kern

IPC: F04D27/00

CPC classification number: F04D27/00

Abstract: A control circuit for controlling the rotational speed of a fan may include a memory element to store operating data corresponding to an operational profile of the fan defined by RPM (revolutions per minute) versus temperature, with the operating data comprising a respective temperature value and a respective RPM value for each respective operating point representing a change in slope of a function that corresponds to the operational profile of the fan. A processing unit may operate to receive a present temperature value, retrieve the operating data from the storage unit, and identify a pair of consecutive operating points such that the present temperature value is greater than a lower respective temperature value of the pair of consecutive operating points, and lower than a higher respective temperature value of the pair of consecutive operating points. The processing unit may calculate a desired RPM value corresponding to the present temperature value by performing linear interpolation between the pair of consecutive operating points, and output the desired RPM value to a closed-loop fan controller configured to control a rotational speed of the fan according at least to the desired RPM value.

Abstract translation: 用于控制风扇的转速的控制电路可以包括存储元件，用于存储与由RPM（每分钟转数）相对于温度定义的风扇的操作分布相对应的操作数据，其中操作数据包括相应的温度值和 每个相应的工作点的相应的RPM值表示与风扇的操作轮廓对应的功能的斜率的变化。 处理单元可以操作以接收当前温度值，从存储单元检索操作数据，并且识别一对连续的操作点，使得当前温度值大于该对连续工作点的较低相应温度值 ，并且低于该对连续工作点的相应温度值的较高值。 处理单元可以通过在一对连续的操作点之间进行线性插值来计算与当前温度值对应的期望的RPM值，并将期望的RPM值输出到闭环风扇控制器，该闭环风扇控制器被配置为根据 至少达到所需的RPM值。