公开(公告)号：US07050885B2

公开(公告)日：2006-05-23

申请号：US10075974

申请日：2002-02-15

申请人： Richard E. Fiegle ,  James Leo Kohler

发明人： Richard E. Fiegle ,  James Leo Kohler

IPC分类号： G05D23/00 ,  H02P29/00

CPC分类号： F24F11/30 ,  F24F2110/00 ,  F24F2140/40

摘要： A pulse count accumulator includes a plurality of counters and a communication port. The plurality of counters are each coupled to a different one of a plurality of actuators and a value of each of the counters corresponds to a position of a corresponding one of the plurality of actuators. The communication port is in communication with the plurality of counters and provides the value of each of the plurality of counters to an external device through the communication port.

公开(公告)号：US6078154A

公开(公告)日：2000-06-20

申请号：US249339

申请日：1999-02-12

申请人： Gregory Jon Manlove ,  Paul M. Werking ,  Wayne Alan Madsen ,  James Leo Kohler

发明人： Gregory Jon Manlove ,  Paul M. Werking ,  Wayne Alan Madsen ,  James Leo Kohler

IPC分类号： H02P6/08 ,  H02P7/00 ,  H02P7/06

CPC分类号： H02P6/18 ,  Y10S388/909

摘要： Circuitry (100, 100') for determining actuator position includes four MOS transistors (T1-T4) connected to each side of a bi-directional motor (10). The current flowing through the motor (10) at any given time is proportional to voltages developed across the internal impedances of the transistors (T1-T4). The resulting motor voltages are amplified and high-pass filtered to remove any DC offsets due to the signal amplification. The conditioned motor voltages are then compared to one or more threshold voltages and passed through a one shot circuit (120) to provide detectable pulses for each motor commutation event. Circuitry (106,107) is provided for counting pulses provided by the one shot circuit (120) and, based on a desired motor position, for providing a number of digital control signals to a digital control circuit (104). Digital control circuit (104) is responsive to the number of digital control signals to control the gate voltages of the four transistors (T1-T4) to thereby control the position of the motor (10).

摘要翻译： 用于确定致动器位置的电路​​（100,100'）包括连接到双向电动机（10）的每一侧的四个MOS晶体管（T1-T4）。 在任何给定时间流过电动机（10）的电流与在晶体管（T1-T4）的内部阻抗上产生的电压成比例。 所产生的电机电压被放大并高通滤波，以消除由于信号放大引起的任何DC偏移。 然后将经调节的电动机电压与一个或多个阈值电压进行比较，并通过一次电路（120）以为每个电动机换向事件提供可检测的脉冲。 电路（106,107）被提供用于对由单触发电路（120）提供的脉冲进行计数，并且基于期望的电动机位置，用于向数字控制电路（104）提供多个数字控制信号。 数字控制电路（104）响应于数字控制信号的数量来控制四个晶体管（T1-T4）的栅极电压，从而控制电动机（10）的位置。