CONTROLLERS FOR DC/DC CONVERTER
    12.
    发明公开
    CONTROLLERS FOR DC/DC CONVERTER 审中-公开
    STEUERUNGENFÜREINEN DC / DC-WANDLER

    公开(公告)号:EP3021473A1

    公开(公告)日:2016-05-18

    申请号:EP15190387.9

    申请日:2015-10-19

    申请人: O2MICRO INC.

    IPC分类号: H02M3/156 H02J7/00

    摘要: A DC/DC converter converts an input DC voltage to an output DC voltage and charges a battery. The DC/DC converter includes: a DC/DC controller, operable for generating a driving signal according to a target value for the output voltage and a first detection signal indicative of the output voltage level to control switching circuitry and to adjust the output voltage level; and a battery charging controller, coupled to the DC/DC controller and the battery, that is operable for receiving the first detection signal indicative of the output voltage level and a second detection signal indicative of a battery voltage level, and for generating a loop control signal according to the first detection signal and the second detection signal to adjust the target value for the output voltage, wherein the difference between the first detection signal and the second detection signal indicates the amount of a battery charging current.

    摘要翻译: DC / DC转换器将输入直流电压转换为输出直流电压并对电池充电。 DC / DC转换器包括:DC / DC控制器,用于根据输出电压的目标值产生驱动信号,以及第一检测信号,其指示输出电压电平以控制开关电路并调整输出电压电平 ; 以及耦合到DC / DC控制器和电池的电池充电控制器,其可操作用于接收指示输出电压电平的第一检测信号和指示电池电压电平的第二检测信号,并且用于产生环路控制 信号,根据第一检测信号和第二检测信号调整输出电压的目标值,其中第一检测信号和第二检测信号之间的差指示电池充电电流的量。

    DRIVING CIRCUIT WITH DIMMING CONTROLLER FOR DRIVING LIGHT SOURCES
    13.
    发明公开
    DRIVING CIRCUIT WITH DIMMING CONTROLLER FOR DRIVING LIGHT SOURCES 审中-公开
    驾驶电路与调光控制器驱动光源

    公开(公告)号:EP3007521A2

    公开(公告)日:2016-04-13

    申请号:EP15174194.9

    申请日:2015-06-29

    申请人: O2Micro, Inc.

    IPC分类号: H05B37/02 H05B33/08

    CPC分类号: H05B37/02 H05B33/0815

    摘要: A driving circuit includes a power converter, a dimming controller and a current path coupled to the dimming controller. The power converter receives input power from a rectifier and provides output power to a light source. A power switch transfers power from an AC power source to the rectifier when the power switch is on. The dimming controller receives a switch monitoring signal indicative of the state of the power switch. An average current flowing through the light source has a first value if the power switch is on. The dimming controller is operable for adjusting the average current based on the switch monitoring signal. A current flows from the AC power source through the current path to ground when the power switch is off.

    摘要翻译: 驱动电路包括功率转换器,调光控制器以及耦接至调光控制器的电流路径。 功率转换器从整流器接收输入功率并向光源提供输出功率。 电源开关打开时,电源开关将交流电源的电源传输至整流器。 调光控制器接收指示电源开关的状态的开关监控信号。 如果电源开关打开,流过光源的平均电流具有第一值。 调光控制器可操作用于基于开关监控信号调节平均电流。 当电源开关关闭时,电流从AC电源通过电流路径流向地。

    Method and apparatus for synchronizing navigation data
    15.
    发明公开
    Method and apparatus for synchronizing navigation data 审中-公开
    同步导航数据的方法和装置

    公开(公告)号:EP2703842A1

    公开(公告)日:2014-03-05

    申请号:EP13179372.1

    申请日:2013-08-06

    申请人: O2Micro, Inc.

    IPC分类号: G01S19/24

    CPC分类号: G01S19/24

    摘要: Method, apparatus, and programs for synchronizing navigation data. Data synchronization is established between a receiver and a navigation device based on matching of a header of navigation data. The receiver receives the navigation data from the navigation device. If, subsequently, the data synchronization is interrupted, information related to the data synchronization from the receiver is retrieved. The data synchronization is then re-established between the receiver and the navigation device based on the retrieved information.

    摘要翻译: 用于同步导航数据的方法,装置和程序。 基于导航数据的头部的匹配,在接收机和导航设备之间建立数据同步。 接收器从导航设备接收导航数据。 如果随后数据同步被中断,则检索与来自接收机的数据同步有关的信息。 然后基于检索到的信息在接收器和导航设备之间重新建立数据同步。

    Conversion systems with balanced cell currents
    17.
    发明公开
    Conversion systems with balanced cell currents 审中-公开
    与平衡细胞的电流转换系统

    公开(公告)号:EP2086086A3

    公开(公告)日:2010-11-17

    申请号:EP08164582.2

    申请日:2008-09-18

    申请人: O2Micro, Inc.

    IPC分类号: H02J7/00 G01R31/36

    摘要: A conversion system includes a conversion circuit coupled to multiple cells for generating multiple sampling signals indicative of the cell voltages of the cells respectively. Each sampling signal is with respect to the same reference level. In addition, the conversion system includes a compensation circuit coupled to the conversion circuit for generating a compensation current that flows through at least one cell of the multiple cells via the conversion circuit for balancing the currents respectively flowing through the cells.

    High precision analog to digital converter
    18.
    发明公开
    High precision analog to digital converter 有权
    高精度模拟数字转换器

    公开(公告)号:EP2026468A3

    公开(公告)日:2009-08-12

    申请号:EP08166543.2

    申请日:2003-04-30

    申请人: O2Micro, Inc.

    IPC分类号: H03M1/12 H03M3/02

    CPC分类号: H03M3/34 H03M3/43 H03M3/456

    摘要: An analog to digital converter (ADC) includes a cross switch array coupled between an input switch array and an integrator configured to alternately transfer charges from a first input capacitor and a second input capacitor to a first integration capacitor and a second integration capacitor thereby improving linearity problems caused by capacitor mismatching. The cross switch array may also be configured to transfer charges from the first input capacitor to the first integration capacitor and from the second input capacitor to the second integration capacitor during a first charge transfer time interval, and from the first input capacitor to the second integration capacitor and from the second input capacitor to the first integration capacitor during a second charge transfer time interval. A sensing system including and ADC consistent with the invention is also provided. Various methods of transferring charges in an ADC are also provided.

    Conversion systems with balanced cell currents
    19.
    发明公开
    Conversion systems with balanced cell currents 审中-公开
    Umwandlungssysteme mit ausgeglichenenZellströmen

    公开(公告)号:EP2086086A2

    公开(公告)日:2009-08-05

    申请号:EP08164582.2

    申请日:2008-09-18

    申请人: O2Micro, Inc.

    IPC分类号: H02J7/00

    摘要: A conversion system includes a conversion circuit coupled to multiple cells for generating multiple sampling signals indicative of the cell voltages of the cells respectively. Each sampling signal is with respect to the same reference level. In addition, the conversion system includes a compensation circuit coupled to the conversion circuit for generating a compensation current that flows through at least one cell of the multiple cells via the conversion circuit for balancing the currents respectively flowing through the cells.

    摘要翻译: 转换系统包括耦合到多个单元的转换电路,用于分别产生指示单元电池电压的多个采样信号。 每个采样信号相对于相同的参考电平。 另外,转换系统包括一个补偿电路,该补偿电路耦合到转换电路,用于产生经由转换电路流过多个单元的至少一个单元的补偿电流,用于平衡分别流过单元的电流。

    Prefix matching algorithem
    20.
    发明公开
    Prefix matching algorithem 有权
    Algorithmen zum Auffinden des passendenPräfixes

    公开(公告)号:EP1981238A1

    公开(公告)日:2008-10-15

    申请号:EP07013072.9

    申请日:2007-07-04

    申请人: O2Micro, Inc.

    IPC分类号: H04L29/06

    CPC分类号: H04L63/145

    摘要: A prefix matching algorithm and method thereof are disclosed. The prefix matching engine for matching prefix of an input stream against prefixes of predefined signatures includes a prefix logic, a prefix look-up table storing prefix information of the predefined signatures and a table entry buffer. According to a portion of the input stream, the prefix logic is capable of accessing a predetermined number of table entries in the prefix look-up table and stores table entry values of the predetermined number of table entries in the table entry buffer. By examining the temporary table entry values in the table entry buffer, the prefix logic determines whether a prefix matching is found.

    摘要翻译: 公开了前缀匹配算法及其方法。 用于匹配预定义签名的前缀的输入流的前缀的前缀匹配引擎包括前缀逻辑,存储预定义签名的前缀信息的前缀查找表和表条目缓冲器。 根据输入流的一部分,前缀逻辑能够访问前缀查找表中的预定数量的表条目,并将预定数量的表条目的表条目值存储在表条目缓冲器中。 通过检查表条目缓冲区中的临时表条目值,前缀逻辑确定是否找到前缀匹配。