专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07197410B2 Predicting loss of frequency lock between a motor control circuit and a motor 有权
标题翻译：预测电机控制电路和电机之间频率锁定的损失
公开(公告)号：US07197410B2
公开(公告)日：2007-03-27
申请号：US10910993
申请日：2004-08-04
申请人： Jeffrey Alan Heydt , David Ray Street
发明人： Jeffrey Alan Heydt , David Ray Street
IPC分类号： G01R15/00
CPC分类号： H02P6/34 , G01R31/343
摘要： Method arid apparatus for accelerating a multi-phase motor having a rotatable rotor are disclosed. The method incorporates use of a motor control circuit to predict a subsequent loss of frequency lock between the motor control circuit and a motor while the motor control circuit and the motor remain frequency locked, and based on the prediction, steps to avert a loss of frequency lock during acceleration. The apparatus includes at least a motor control circuit detecting frequency lock wit a motor when a motor signal falls within a timing window, and while frequency locked, predicting a subsequent loss of frequency lock based on a relative position of the motor signal within the timing window
摘要翻译：公开了用于加速具有可旋转转子的多相电动机的方法和装置。该方法包括使用电动机控制电路来预测电动机控制电路和电动机之间的随后的电动机控制电路和电动机的损失，同时电动机控制电路和电动机保持频率锁定，并且基于预测，避免频率损失的步骤加速时锁定。该装置至少包括电动机控制电路，当电动机信号落入定时窗口内时，检测与电动机的频率锁定，并且在频率锁定期间，基于电动机信号在定时窗口内的相对位置预测随后的频率锁定损失

2. 发明申请

US20100188117A1 Defining a Default Configuration for Configurable Circuitry in an Integrated Circuit 有权
标题翻译：定义集成电路中可配置电路的默认配置
公开(公告)号：US20100188117A1
公开(公告)日：2010-07-29
申请号：US12362128
申请日：2009-01-29
申请人： David Ray Street , Degang Xia
发明人： David Ray Street , Degang Xia
IPC分类号： H03K19/173
CPC分类号： H03K19/1733
摘要： An integrated circuit with a configurable portion, such as an input/output port, that can be placed in a default configuration prior to actual configuration of the integrated circuit. An external terminal that serves as an output during normal operation is coupled, after power-on of the integrated circuit, to a comparator that senses the voltage level at that external terminal. If the external terminal is at a particular level, a multiplexer is controlled to ignore the state of the normal configuration memory, and to place the configurable input/output port into a default protocol.
摘要翻译：具有诸如输入/输出端口的可配置部分的集成电路，其可以在集成电路的实际配置之前被置于默认配置中。在正常操作期间用作输出的外部端子在集成电路上电之后耦合到感测该外部端子处的电压电平的比较器。如果外部端子处于特定级别，则控制多路复用器以忽略正常配置存储器的状态，并将可配置输入/输出端口置于默认协议。

3. 发明申请

US20100066287A1 SYSTEMS AND METHODS FOR DETECTING POSITION FOR A BRUSHLESS DC MOTOR 有权
标题翻译：用于检测无刷直流电动机位置的系统和方法
公开(公告)号：US20100066287A1
公开(公告)日：2010-03-18
申请号：US12210583
申请日：2008-09-15
申请人： DAVID RAY STREET
发明人： DAVID RAY STREET
IPC分类号： H02P6/18
CPC分类号： H02P6/18 , H02P6/15
摘要： A system for determining a commutation state for a brushless DC motor includes a controller configured to control current that is applied to drive each of a plurality of phases of the motor. A time delay system is configured to measure, for a given commutation state, a time delay from when a voltage associated with a driven phase of the plurality of phases crosses a predetermined threshold and a voltage associated with a floating phase of the plurality of motor phases crosses the predetermined threshold. Logic is configured to determine the commutation state for the motor based on the measured time delay.
摘要翻译：一种用于确定无刷直流电动机的换向状态的系统包括：控制器，被配置为控制用于驱动电动机的多个相位中的每一个的电流。时间延迟系统被配置为对于给定的换向状态来测量从与多个相位的驱动相位相关联的电压是否超过预定阈值的时间延迟以及与多个电动机相位的浮动相位相关联的电压的时间延迟跨越预定阈值。逻辑被配置为基于测量的时间延迟来确定电动机的换向状态。

4. 发明授权

US07888965B2 Defining a default configuration for configurable circuitry in an integrated circuit 有权
标题翻译：定义集成电路中可配置电路的默认配置
公开(公告)号：US07888965B2
公开(公告)日：2011-02-15
申请号：US12362128
申请日：2009-01-29
申请人： David Ray Street , Degang Xia
发明人： David Ray Street , Degang Xia
IPC分类号： H03K19/173 , G11C5/14 , H02M1/10
CPC分类号： H03K19/1733
摘要： An integrated circuit with a configurable portion, such as an input/output port, that can be placed in a default configuration prior to actual configuration of the integrated circuit. An external terminal that serves as an output during normal operation is coupled, after power-on of the integrated circuit, to a comparator that senses the voltage level at that external terminal. If the external terminal is at a particular level, a multiplexer is controlled to ignore the state of the normal configuration memory, and to place the configurable input/output port into a default protocol.
摘要翻译：具有诸如输入/输出端口的可配置部分的集成电路，其可以在集成电路的实际配置之前被置于默认配置中。在正常操作期间用作输出的外部端子在集成电路上电之后耦合到感测该外部端子处的电压电平的比较器。如果外部端子处于特定级别，则控制多路复用器以忽略正常配置存储器的状态，并将可配置输入/输出端口置于默认协议。

5. 发明授权

US06266203B1 Integrated temperature sense circuit in a disc drive 失效
标题翻译：集成温度检测电路在磁盘驱动器中
公开(公告)号：US06266203B1
公开(公告)日：2001-07-24
申请号：US09052887
申请日：1998-03-31
申请人： David Ray Street , John Michael Baker , Karl Louis Enarson , Timothy Ted Walker , Ronald Duane Metzner , Anish A. Ukani
发明人： David Ray Street , John Michael Baker , Karl Louis Enarson , Timothy Ted Walker , Ronald Duane Metzner , Anish A. Ukani
IPC分类号： G11B502
CPC分类号： G11B5/012 , G11B5/5565 , G11B25/043 , G11B33/144 , G11B2005/001
摘要： A method and apparatus are disclosed for optimizing operational performance of a disc drive. The disc drive is provided with an integrated temperature measurement circuit which provides a temperature measurement signal indicative of operational temperature of the disc drive. The integrated temperature measurement circuit is formed as part of an application specific integrated circuit (ASIC) housing additional circuitry used by the disc drive during operation. A parametric configuration circuit, operably coupled to the integrated temperature measurement circuit, identifies selected parameters for use by the disc drive to optimize disc drive performance, the parameters arranged as a plurality of parameter sets corresponding to a plurality of predefined operational temperature ranges. The parametric configuration circuit periodically measures the operational temperature of the disc drive through evaluation of the temperature measurement signal, identifies the operational temperature range in which the measured operational temperature falls, and implements the parameter set corresponding to the identified operational temperature range.
摘要翻译：公开了一种用于优化盘驱动器的操作性能的方法和装置。盘驱动器配备有集成的温度测量电路，其提供指示盘驱动器的操作温度的温度测量信号。集成温度测量电路形成为在运行期间容纳由磁盘驱动器使用的附加电路的专用集成电路（ASIC）的一部分。可操作地耦合到集成温度测量电路的参数配置电路识别所选择的参数供盘驱动器使用以优化磁盘驱动器性能，该参数被布置为对应于多个预定义的工作温度范围的多个参数组。参数配置电路通过评估温度测量信号周期性地测量磁盘驱动器的工作温度，识别测量的工作温度下降的工作温度范围，并实现与所识别的工作温度范围对应的参数组。

6. 发明授权

US08237385B2 Systems and methods for detecting position for a brushless DC motor 有权
标题翻译：用于检测无刷直流电动机位置的系统和方法
公开(公告)号：US08237385B2
公开(公告)日：2012-08-07
申请号：US12210583
申请日：2008-09-15
申请人： David Ray Street
发明人： David Ray Street
IPC分类号： H02P6/18
CPC分类号： H02P6/18 , H02P6/15
摘要： A system for determining a commutation state for a brushless DC motor includes a controller configured to control current that is applied to drive each of a plurality of phases of the motor. A time delay system is configured to measure, for a given commutation state, a time delay from when a voltage associated with a driven phase of the plurality of phases crosses a predetermined threshold and a voltage associated with a floating phase of the plurality of motor phases crosses the predetermined threshold. Logic is configured to determine the commutation state for the motor based on the measured time delay.
摘要翻译：一种用于确定无刷直流电动机的换向状态的系统包括：控制器，被配置为控制用于驱动电动机的多个相位中的每一个的电流。时间延迟系统被配置为对于给定的换向状态来测量从与多个相位的驱动相位相关联的电压是否超过预定阈值的时间延迟以及与多个电动机相位的浮动相位相关联的电压的时间延迟跨越预定阈值。逻辑被配置为基于测量的时间延迟来确定电动机的换向状态。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式