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. 发明申请

US20120155144A1 FAST RESPONSE CIRCUITS AND METHODS FOR FRAM POWER LOSS PROTECTION 有权
标题翻译：快速响应电路和框架电力损失保护方法
公开(公告)号：US20120155144A1
公开(公告)日：2012-06-21
申请号：US12973362
申请日：2010-12-20
申请人： Degang Xia , Steven Chacko , Richard Lawrence Duncan , Chuan Ni
发明人： Degang Xia , Steven Chacko , Richard Lawrence Duncan , Chuan Ni
IPC分类号： G11C11/22
CPC分类号： G11C11/22
摘要： A circuit to protect data on an FRAM during a read operation includes an FRAM voltage regulator having an output to supply an FRAM operating voltage to the FRAM. A voltage monitor monitors a supply voltage for the FRAM to generate a voltage fault signal if the supply voltage falls below a predetermined value. And a circuit responsive to the voltage fault signal maintains the FRAM operating voltage above a voltage required to assure data integrity of the FRAM for a sufficient time required to perform an FRAM read operation.
摘要翻译：在读取操作期间保护FRAM上的数据的电路包括具有向FRAM提供FRAM工作电压的输出的FRAM稳压器。如果电源电压低于预定值，则电压监视器监视FRAM的电源电压以产生电压故障信号。并且响应于电压故障信号的电路将FRAM操作电压保持在所需的电压以保证FRAM的数据完整性足以执行FRAM读取操作所需的足够的时间。

2. 发明授权

US08040116B2 Automatically configurable dual regulator type circuits and methods 有权
标题翻译：自动配置双调节型电路和方法
公开(公告)号：US08040116B2
公开(公告)日：2011-10-18
申请号：US12402171
申请日：2009-03-11
申请人： Degang Xia , Chuan Ni , Matthew Alan Frank
发明人： Degang Xia , Chuan Ni , Matthew Alan Frank
IPC分类号： G05F1/00
CPC分类号： G05F1/56 , H02M3/1588 , H02M2001/0045 , Y02B70/1466
摘要： Automatically configurable dual regulator type circuits and methods are provided. On embodiment of the invention includes an automatically configurable dual regulator type circuit. The circuit comprises a high-side switching device (HS-SD) coupled to a low-side switching device (LS-SD) at an output node. The circuit further comprises a control logic device that turns on the HS-SD to provide an output current to a user selected circuit configuration through the output node, turns off the HS-SD after a voltage fed back from an output terminal of the user selected circuit configuration exceeds a first threshold and sets a regulator type configuration mode based on the presence or absence of a flyback period at the output node after the HS-SD has been turned off.
摘要翻译：提供了自动配置的双调节型电路和方法。在本发明的实施例中，包括可自动配置的双调节型电路。电路包括在输出节点处耦合到低侧开关装置（LS-SD）的高侧开关装置（HS-SD）。电路还包括控制逻辑器件，其接通HS-SD以通过输出节点向用户选择的电路配置提供输出电流，在从用户的输出端子反馈的电压被选择之后关断HS-SD 电路配置超过第一阈值，并且基于在HS-SD已经被关闭之后在输出节点处的存在或不存在反激周期来设置调节器类型配置模式。

3. 发明申请

US20070236164A1 On-Chip Compensation for a Fully Differential Voice Coil Motor Control 有权
标题翻译：全差分音圈电机控制的片上补偿
公开(公告)号：US20070236164A1
公开(公告)日：2007-10-11
申请号：US11733712
申请日：2007-04-10
申请人： Degang Xia , Robert E. Whyte
发明人： Degang Xia , Robert E. Whyte
IPC分类号： G05D23/275
CPC分类号： G11B5/5526 , G11B5/59605 , H02P25/034
摘要： A disk drive controller including a differential voice coil motor control function is disclosed. The differential voice coil motor control function includes an on-chip compensation network for the inner control loop, including a resistor formed of one or more MOS transistors connected in series. The gate of the MOS transistors in the compensation network is driven with a bias voltage based on a tuning current, where the tuning current is derived so that it varies with process and temperature variations of the integrated circuit, for example with variations in an on-chip capacitor. The on-chip compensation network can be tuned with sufficient precision to properly compensate the inner control loop to provide the desired frequency response in driving the voice coil motor in the disk drive.
摘要翻译：公开了一种包括差分音圈电机控制功能的磁盘驱动器控制器。差分音圈电机控制功能包括用于内部控制回路的片上补偿网络，包括由串联连接的一个或多个MOS晶体管形成的电阻器。补偿网络中的MOS晶体管的栅极由基于调谐电流的偏置电压驱动，其中调谐电流被导出，使得其随集成电路的过程和温度变化而变化，例如，片式电容器。可以以足够的精度调整片上补偿网络，以适当地补偿内部控制回路，以在驱动盘驱动器中的音圈电机时提供期望的频率响应。

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

US07888924B2 Combination continuous and discontinuous control of a power regulator 有权
标题翻译：电力调节器的组合连续和不连续控制
公开(公告)号：US07888924B2
公开(公告)日：2011-02-15
申请号：US12028354
申请日：2008-02-08
申请人： Tuan Van Tran , John Kevin Rote , Degang Xia
发明人： Tuan Van Tran , John Kevin Rote , Degang Xia
IPC分类号： G05F1/575 , G05F1/62
CPC分类号： H02M3/1582 , H02M2001/0041
摘要： A power regulator system is described. The system includes a switching system comprising at least one switch and an inductor, the switching system being configured to provide an output voltage based on a current through the inductor. The system also includes a switch driver configured to provide a switching signal to the switching system to control the operation of the at least one switch to provide the current through the at least one inductor. A mode controller is configured to switch the switch driver between a continuous mode of operation and a discontinuous mode of operation based on both a feedback voltage associated with the output voltage and at least one other predetermined operating condition associated with each of the continuous and discontinuous modes of operation.
摘要翻译：描述了电力调节器系统。该系统包括包括至少一个开关和电感器的开关系统，所述开关系统被配置为基于通过电感器的电流来提供输出电压。该系统还包括开关驱动器，其被配置为向开关系统提供开关信号以控制至少一个开关的操作以提供通过至少一个电感器的电流。模式控制器被配置为基于与输出电压相关联的反馈电压和与每个连续模式和不连续模式相关联的至少一个其它预定操作条件，在连续操作模式和不连续操作模式之间切换开关驱动器的操作。

6. 发明授权

US08437169B2 Fast response circuits and methods for FRAM power loss protection 有权
标题翻译：快速响应电路和FRAM掉电保护方法
公开(公告)号：US08437169B2
公开(公告)日：2013-05-07
申请号：US12973362
申请日：2010-12-20
申请人： Degang Xia , Steven Chacko , Richard Lawrence Duncan , Chuan Ni
发明人： Degang Xia , Steven Chacko , Richard Lawrence Duncan , Chuan Ni
IPC分类号： G11C11/22
CPC分类号： G11C11/22
摘要： A circuit to protect data on an FRAM during a read operation includes an FRAM voltage regulator having an output to supply an FRAM operating voltage to the FRAM. A voltage monitor monitors a supply voltage for the FRAM to generate a voltage fault signal if the supply voltage falls below a predetermined value. And a circuit responsive to the voltage fault signal maintains the FRAM operating voltage above a voltage required to assure data integrity of the FRAM for a sufficient time required to perform an FRAM read operation.
摘要翻译：在读取操作期间保护FRAM上的数据的电路包括具有向FRAM提供FRAM工作电压的输出的FRAM稳压器。如果电源电压低于预定值，则电压监视器监视FRAM的电源电压以产生电压故障信号。并且响应于电压故障信号的电路将FRAM操作电压保持在所需的电压以保证FRAM的数据完整性足以执行FRAM读取操作所需的足够的时间。

7. 发明申请

US20090309559A1 AUTOMATICALLY CONFIGURABLE DUAL REGULATOR TYPE CIRCUITS AND METHODS 有权
标题翻译：自动配置双调节器类型电路和方法
公开(公告)号：US20090309559A1
公开(公告)日：2009-12-17
申请号：US12402171
申请日：2009-03-11
申请人： Degang Xia , Chuan Ni , Matthew Alan Frank
发明人： Degang Xia , Chuan Ni , Matthew Alan Frank
IPC分类号： G05F1/00
CPC分类号： G05F1/56 , H02M3/1588 , H02M2001/0045 , Y02B70/1466
摘要： Automatically configurable dual regulator type circuits and methods are provided. On embodiment of the invention includes an automatically configurable dual regulator type circuit. The circuit comprises a high-side switching device (HS-SD) coupled to a low-side switching device (LS-SD) at an output node. The circuit further comprises a control logic device that turns on the HS-SD to provide an output current to a user selected circuit configuration through the output node, turns off the HS-SD after a voltage fed back from an output terminal of the user selected circuit configuration exceeds a first threshold and sets a regulator type configuration mode based on the presence or absence of a flyback period at the output node after the HS-SD has been turned off.
摘要翻译：提供了自动配置的双调节型电路和方法。在本发明的实施例中，包括可自动配置的双调节型电路。电路包括在输出节点处耦合到低侧开关装置（LS-SD）的高侧开关装置（HS-SD）。电路还包括控制逻辑器件，其接通HS-SD以通过输出节点向用户选择的电路配置提供输出电流，在从用户的输出端子反馈的电压被选择之后关断HS-SD 电路配置超过第一阈值，并且基于在HS-SD已经被关闭之后在输出节点处的存在或不存在反激周期来设置调节器类型配置模式。

8. 发明申请

US20090200995A1 COMBINATION CONTINUOUS AND DISCONTINUOUS CONTROL OF A POWER REGULATOR 有权
标题翻译：电力调节器的组合连续不连续控制
公开(公告)号：US20090200995A1
公开(公告)日：2009-08-13
申请号：US12028354
申请日：2008-02-08
申请人： Tuan Van Tran , John Kevin Rote , Degang Xia
发明人： Tuan Van Tran , John Kevin Rote , Degang Xia
IPC分类号： G05F1/613
CPC分类号： H02M3/1582 , H02M2001/0041
摘要： One embodiment of the invention includes a power regulator system. The system includes a switching system comprising at least one switch and an inductor, the switching system being configured to provide an output voltage based on a current through the inductor. The system also includes a switch driver configured to provide a switching signal to the switching system to control the operation of the at least one switch to provide the current through the at least one inductor. A mode controller is configured to switch the switch driver between a continuous mode of operation and a discontinuous mode of operation based on both a feedback voltage associated with the output voltage and at least one other predetermined operating condition associated with each of the continuous and discontinuous modes of operation.
摘要翻译：本发明的一个实施例包括功率调节器系统。该系统包括包括至少一个开关和电感器的开关系统，所述开关系统被配置为基于通过电感器的电流来提供输出电压。该系统还包括开关驱动器，其被配置为向开关系统提供开关信号以控制至少一个开关的操作以提供通过至少一个电感器的电流。模式控制器被配置为基于与输出电压相关联的反馈电压和与每个连续模式和不连续模式相关联的至少一个其它预定操作条件，在连续操作模式和不连续操作模式之间切换开关驱动器的操作。

9. 发明申请

US20070236825A1 Differential Voice Coil Motor Control 有权
标题翻译：差分音圈电机控制
公开(公告)号：US20070236825A1
公开(公告)日：2007-10-11
申请号：US11733717
申请日：2007-04-10
申请人： Degang Xia , Robert E. Whyte
发明人： Degang Xia , Robert E. Whyte
IPC分类号： G11B5/596 , G11B5/03
CPC分类号： G11B5/5526 , G11B5/59605 , H02P25/034
摘要： A disk drive controller including a differential voice coil motor control function is disclosed. The differential voice coil motor control function includes an on-chip compensation network for the inner control loop, including a resistor formed of one or more MOS transistors connected in series. The gate of the MOS transistors in the compensation network is driven with a bias voltage based on a tuning current, where the tuning current is derived so that it varies with process and temperature variations of the integrated circuit, for example with variations in an on-chip capacitor. The on-chip compensation network can be tuned with sufficient precision to properly compensate the inner control loop to provide the desired frequency response in driving the voice coil motor in the disk drive.
摘要翻译：公开了一种包括差分音圈电机控制功能的磁盘驱动器控制器。差分音圈电机控制功能包括用于内部控制回路的片上补偿网络，包括由串联连接的一个或多个MOS晶体管形成的电阻器。补偿网络中的MOS晶体管的栅极由基于调谐电流的偏置电压驱动，其中调谐电流被导出，使得其随集成电路的过程和温度变化而变化，例如，片式电容器。可以以足够的精度调整片上补偿网络，以适当地补偿内部控制回路，以在驱动盘驱动器中的音圈电机时提供期望的频率响应。

10. 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。

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