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1. 发明授权

US11073565B2 Calculating a remaining capacity of a battery 有权
公开(公告)号：US11073565B2
公开(公告)日：2021-07-27
申请号：US16280828
申请日：2019-02-20
申请人： O2Micro, Inc.
发明人： Sterling Du , Yong Song , Yi Yuan , Ruobing Ren
IPC分类号： G01R31/3842 , G01R31/36
摘要： A method for calculating a remaining capacity of a battery includes: recording a sleep time of a battery monitor in sleep mode; reading an open circuit voltage measured and stored in sleep mode when the sleep time is greater than a preset time period and determining a first remaining capacity ratio based on the open circuit voltage; calculating charges consumed based on a preset current and the sleep time; calculating a second remaining capacity ratio based on charges consumed, a stored first remaining capacity value and a preset total capacity; reading values of battery parameters; determining a third remaining capacity ratio based on the values of battery parameters; and determining a current remaining capacity ratio based on the first remaining capacity ratio, the second remaining capacity ratio and the third remaining capacity ratio.

2. 发明申请

US20210029788A1 CONTROLLER FOR CONTROLLING LIGHT SOURCE MODULE 有权
公开(公告)号：US20210029788A1
公开(公告)日：2021-01-28
申请号：US16518316
申请日：2019-07-22
申请人： O2Micro, Inc.
发明人： Rong HU , Yung-Lin LIN , Hiroshi YAMAZAKI , Naoyuki FUJITA
IPC分类号： H05B33/08 , H05B39/04
摘要： A controller for controlling a light source module including a first LED array and a second LED array includes a power input terminal, a first power output terminal and a second power output terminal. The power input terminal is operable for receiving electric power from a power converter. The first power terminal is coupled to the first LED array, and the second power output terminal is coupled to the second LED array. The controller is operable for delivering the electric power to the first LED array via the first power output terminal in a first sequence of discrete time slots, and for delivering the electric power to the second LED array via the second power output terminal in a second sequence of discrete time slots. The first sequence of discrete time slots and the second sequence of discrete time slots are mutually exclusive.

3. 发明授权

US10893591B2 Controllers, systems, and methods for driving a light source 有权
公开(公告)号：US10893591B2
公开(公告)日：2021-01-12
申请号：US16846092
申请日：2020-04-10
申请人： O2Micro, Inc.
发明人： Sheng-tai Lee , Kaiping Ran
IPC分类号： H05B45/34 , H05B45/345 , H05B45/10 , H05B45/24 , H05B45/395 , H05B45/00 , H05B45/14
摘要： A controller includes a voltage detection terminal, a current detection terminal and a voltage sensing terminal. The voltage detection terminal senses a second output voltage. The current detection terminal senses a current of a light source. The second output voltage is sensed prior to the current of the light source. The voltage sensing terminal receives a voltage sensing signal indicative of a first output voltage. The controller adjusts the voltage sensing signal based on the second output voltage, to enable the second output voltage in a preset voltage range; when the second output voltage is in the preset voltage range, the controller adjusts the adjusted voltage sensing signal based on a difference between the current of the light source and a target current value, to enable the current of the light source to maintain the target current value.

4. 发明授权

US10534037B2 Devices with battery remaining capacity estimating functions 有权
公开(公告)号：US10534037B2
公开(公告)日：2020-01-14
申请号：US15939091
申请日：2018-03-28
申请人： O2Micro Inc.
发明人： Yi Yuan , Yingguo Zhang , Zhibin Hua , Hua-Yi Wang , Ping Liu
IPC分类号： G01R31/36 , G01R31/382 , G06F17/00 , G01R19/165 , G01R31/3842
摘要： A device includes an interface and a processor. The interface receives information for a parameter indicative of a status of a battery. The processor calculates a remaining capacity of the battery, calculates a capacity ratio of the calculated remaining capacity to a capacity reference of the battery, compares the parameter with a parameter reference to generate a first comparison result, compares the capacity ratio with a ratio reference to generate a second comparison result, sets an amount according to the first and second comparison results, and changes the calculated remaining capacity by the amount.

5. 发明授权

US10277052B2 Controlling power delivery to a battery 有权
公开(公告)号：US10277052B2
公开(公告)日：2019-04-30
申请号：US15823011
申请日：2017-11-27
申请人： O2Micro Inc.
发明人： Guoxing Li
IPC分类号： H02J7/04 , H02J7/16 , H02J7/00
摘要： A controller for controlling power delivery to a battery includes a first terminal that provides a first signal to enable a bypass path to deliver power from an interface to charge the battery, and includes a second terminal that provides a second signal to enable a conversion circuit to convert input power received at the interface to output power to charge the battery. The controller also includes circuitry that determines whether a first adapter or a second adapter is connected to the interface, generates the second signal if the second adapter is connected to the interface, generates the first signal and a request if the first adapter is connected to the interface, and provides the request to the first adapter through the interface. The request includes information indicative of a target level and an instruction that causes the first adapter to provide power at the target level to the interface.

6. 发明授权

US10075074B2 DC to DC converters and controllers thereof 有权
公开(公告)号：US10075074B2
公开(公告)日：2018-09-11
申请号：US15498236
申请日：2017-04-26
申请人： O2Micro, Inc.
发明人： Gang Li , Fengjiang Zhang , Guoyong Guo
IPC分类号： H02M3/156 , H02M3/158 , H02M1/36 , H02M1/00
CPC分类号： H02M3/158 , H02M1/00 , H02M1/36 , H02M3/156 , H02M3/1584 , H02M2001/0003 , H02M2003/1566 , H02M2003/1586
摘要： In a controller for a DC to DC converter, PWM signal generating circuitry generates a set of PWM signals phase-shifted relative to one another, and controls states of the PWM signals according to a set of control signals. Each PWM signal of the PWM signals has an on-time state and an off-time state. Ramp signal generating circuitry, coupled to the PWM signal generating circuitry, generates a set of ramp signals having substantially the same ramp slope. Each ramp signal of the ramp signals is generated in response to detecting an on-time state of a corresponding PWM signal of the PWM signals. Additionally, a comparing circuit, coupled to the PWM and ramp signal generating circuitry, alternately compares the ramp signals with a preset reference to generate the control signals. A corresponding control signal of the control signals changes the corresponding PWM signal from the on-time state to an off-time state.

7. 发明授权

US09515508B2 Battery management system 有权
标题翻译：电池管理系统
公开(公告)号：US09515508B2
公开(公告)日：2016-12-06
申请号：US13804594
申请日：2013-03-14
申请人： O2Micro Inc.
发明人： Weidong Xue , Anquan Xiao , Xiaohu Tang , Xiaofei Gong
IPC分类号： H02J7/00 , H01M10/48 , H01M10/42
CPC分类号： H02J7/007 , H01M10/482 , H01M2010/4271 , H02J7/0014 , H02J7/0016 , H02J7/0018 , H02J2007/0037
摘要： A battery management system includes detecting circuitry and control circuitry coupled to the detecting circuitry. The detecting circuitry detects cell voltages of battery cells of a battery pack. The control circuitry alternates between a normal state and a charging prohibition state. In the normal state, charging of the battery cells is enabled and the cell voltages increase, and if a voltage of a battery cell of the battery cells exceeds a predetermined overcharge threshold, then the control circuitry transitions to the charging prohibition state. In the charging prohibition state, charging of the battery cells is disabled, and the voltage of the battery cell decreases if at least one cell of the battery cells has a voltage less than a balance threshold. If the voltage of the battery cell falls to a predetermined overcharge-released threshold, then the control circuitry transitions to the normal state and enables charging of the battery cells.
摘要翻译：电池管理系统包括耦合到检测电路的检测电路和控制电路。检测电路检测电池组的电池单体的电池电压。控制电路在正常状态和充电禁止状态之间交替。在正常状态下，能够使电池单体充电，并且电池电压增加，并且如果电池单电池的电压超过预定的过充电阈值，则控制电路转换到充电禁止状态。在充电禁止状态下，如果电池单元的至少一个电池具有小于平衡阈值的电压，则电池单元的充电被禁用，并且电池单元的电压降低。如果电池单元的电压下降到预定的过充电阈值，则控制电路转换到正常状态并使电池单元能够充电。

8. 发明授权

US09368981B2 System and methods for current balancing 有权
标题翻译：用于电流平衡的系统和方法
公开(公告)号：US09368981B2
公开(公告)日：2016-06-14
申请号：US14328355
申请日：2014-07-10
申请人： O2Micro, Inc.
发明人： Guoxing Li , Yan Li , Weidong Xue , Anquan Xiao
IPC分类号： H01M10/44 , H01M10/46 , H02J7/00
CPC分类号： H02J7/0016 , H02J7/007
摘要： A battery module includes: a battery pack including multiple cells; control circuits corresponding to the cells, each control circuit including a control unit for managing the corresponding cell and a compensation unit for generating a corresponding compensation current such that the sum of the corresponding consumed current and the corresponding compensation current is equal to a target total current, where the control circuits include a first control circuit and a second control circuit, where the first control circuit includes a first control unit operating with a first consumed current, the second control circuit includes a second control unit operating with a second consumed current, and where the first control circuit conditionally generates a first compensation current and the second control circuit conditionally generates a second compensation current based on a comparison of the first consumed current and the second consumed current.
摘要翻译：电池模块包括：包括多个电池的电池组; 每个控制电路包括用于管理相应单元的控制单元和用于产生相应的补偿电流的补偿单元，使得相应的消耗电流和相应的补偿电流之和等于目标总电流，其中所述控制电路包括第一控制电路和第二控制电路，其中所述第一控制电路包括以第一消耗电流工作的第一控制单元，所述第二控制电路包括以第二消耗电流操作的第二控制单元，以及其中第一控制电路有条件地产生第一补偿电流，并且第二控制电路基于第一消耗电流和第二消耗电流的比较有条件地产生第二补偿电流。

9. 发明授权

US09368979B2 System and methods for battery balancing 有权
标题翻译：电池平衡的系统和方法
公开(公告)号：US09368979B2
公开(公告)日：2016-06-14
申请号：US13835899
申请日：2013-03-15
申请人： O2Micro Inc.
发明人： Xiaofei Gong
IPC分类号： H02J7/00 , H02J7/14 , B60L11/18
CPC分类号： H02J7/0016 , B60L11/1866 , H02J7/0014 , H02J7/0021 , H02J7/0031 , Y02T10/7055
摘要： A battery system includes multiple battery cells having multiple cell voltages, and a balancing module. The battery module coupled to multiple battery cells and configured to specify a first voltage threshold according to an amount of a charging current supplied to the battery cells in constant current charging mode, and to initiate a balance check of the battery cells if the first voltage threshold is not satisfied by a cell voltage of the plurality of cell voltages.
摘要翻译：电池系统包括具有多个电池电压的多个电池单元和一个平衡模块。电池模块耦合到多个电池单元并且被配置为根据以恒定电流充电模式提供给电池单元的充电电流的量来指定第一电压阈值，并且如果第一电压阈值不满足多个单元电压的单元电压。

10. 发明授权

US09298909B2 Detecting status of an application program running in a device 有权
标题翻译：检测在设备中运行的应用程序的状态
公开(公告)号：US09298909B2
公开(公告)日：2016-03-29
申请号：US13370116
申请日：2012-02-09
申请人： Shyundii Sterling Du , Zhibin Hua , Jun Li
发明人： Shyundii Sterling Du , Zhibin Hua , Jun Li
IPC分类号： G06F21/52 , G06F21/56 , G06F21/81
CPC分类号： G06F21/52 , G06F1/28 , G06F1/305 , G06F11/3003 , G06F11/3062 , G06F21/56 , G06F21/81 , G06F2201/865
摘要： A detecting system includes a sense terminal and detecting circuitry coupled to the sense terminal. The sense terminal receives an indicative signal indicative of a supply current of a power source. The detecting circuitry calculates variation in the supply current based on the indicative signal, estimates power consumption of an application program residing on a computer-readable medium according to the variation, and detects whether an abnormal condition occurs by comparing the estimated power consumption with a reference.
摘要翻译：检测系统包括感测端子和耦合到感测端子的检测电路。感测端子接收指示电源的供电电流的指示信号。检测电路基于指示信号计算供电电流的变化，根据变化量估计驻留在计算机可读介质上的应用程序的功耗，并通过将估计的功耗与参考值进行比较来检测是否发生异常状况。

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