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1. 发明专利

JP2004007975A INVERTER CONTROLLER 审中-公开
公开(公告)号：JP2004007975A
公开(公告)日：2004-01-08
申请号：JP2003128362
申请日：2003-05-06
申请人： O2MICRO INC
发明人： YUN-RIN RIN , LIU DA
IPC分类号： H01L27/04 , H01L21/822 , H02M7/538 , H05B41/282 , H05B41/392 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide an inverter controller which is fit for generating a plurality of signals for driving an inverter circuit. SOLUTION: An integrated circuit controller includes at least one input pin being constituted to accept two or more input signals. The above input pin may be multiplexed so that an appropriate input signal may be directed to an appropriate circuit within the controller so as to support the two or more functions of the controller. Or, the input signal exists in different periods so that one pin can support two or more functions. A multifunctional or multitask pin reduces the overall total number of the pins of the inverter controller. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2000207048A PREBOOT SECURITY CONTROLLER 失效
公开(公告)号：JP2000207048A
公开(公告)日：2000-07-28
申请号：JP35217299
申请日：1999-11-05
申请人： O2MICRO INC
发明人： HUANG JUNG-CHIH , OH BRIAN , HUANG YISHAO MAX , REYNOSO AARON , DU STERLING
IPC分类号： G06F12/14 , G06F1/00 , G06F21/00 , G06F21/22 , G06F21/24 , G06F9/06
摘要： PROBLEM TO BE SOLVED: To allow a digital logic circuit to disable an information processor by comparing a password that an input circuit receives with a user password in security operation mode, and sending it a power subsystem and exciting the operation of a digital computer when the passwords match each other. SOLUTION: The password input circuit 82 is connected to a 4-button type security key pad by a key pad bus 84, the user of an electronic device presents a password to a state machine 52, and the password is compared with one or more passwords registered in a flash memory 56. Then when the preboot security controller 42 enters the security operation mode, those passwords match each other, its output signal is sent to the power subsystem, and the operation of the digital computer is excited.

3. 发明专利

JPH1050489A ELECTRIC POWER SOURCE WITH HIGH-FREQUENCY FOR COLD CATHODE TYPE FLUORESCENT LAMP 失效
公开(公告)号：JPH1050489A
公开(公告)日：1998-02-20
申请号：JP11414897
申请日：1997-03-27
申请人： O2MICRO INC
发明人： LIU KWANG H
IPC分类号： H05B41/24 , H02M3/335
摘要： PROBLEM TO BE SOLVED: To provide a switching mode electric power source which energizes a cold cathode fluorescent lamp(CCFL) is simple, and has high electric efficiency, high reliability and high cost performance. SOLUTION: A switching mode electric power source 100 for CCFL comprises a first semiconductor switch 102 connected in series with a primary winding of a voltage-raising transformer 112. The primary winding 108 and a secondary winding 132 having number of turns higher than that of the primary winding 108 are arranged in the surrounding of the magnetic core of the voltage transformer having linear magnetic permeability. A second semiconductor switch 124, connected in series and a capacitor 126, are connected in parallel with the primary winding 108 of the transformer. A controller circuit sends signals and turns switch on and off. The controller circuit turns on and off the first and the second semiconductor switches 102, 124 by a frequency higher than the resonance frequency of a resonator circuit constituted of the inductance of the transformer 112 and the capacitance of the capacitor 126. A decoupling capacitor 134 is connected in series with a first end part of a secondary winding 132 of the voltage transformer 112. A second terminal of the decoupling capacitor 134 and the second end part of the secondary winding provide an a.c. electric power output terminal for the switching mode electric power source with which the CCFL is to be connected.

4. 发明公开

KR20200127124A 배터리 관리 방법 및 컨트롤러 审中-公开
公开(公告)号：KR20200127124A
公开(公告)日：2020-11-10
申请号：KR20200042873
申请日：2020-04-08
申请人： O2MICRO INC
发明人： YINGGUO ZHANG , GUOYAN QIAO , FU JEN HSIEH , CHIA MING CHANG , CHIH CHUNG CHOU , HUA YI WANG
IPC分类号： H02J7/00 , G01R19/165 , G01R31/382
摘要： 배터리팩을관리하기위한컨트롤러는, 배터리팩에대한배터리파라미터들의값들이슬립조건을만족할때 인에이블신호를전송하기위한감지단자, 및감지회로에의해전송된감지결과를수신하기위한수신단자를포함하고, 상기인에이블신호는감지회로가상기배터리팩이부하에연결되는지여부및 상기배터리팩이충전기에연결되는지여부를감지하는것을가능하게한다. 상기감지결과는상기배터리팩이상기부하및 상기충전기중 적어도하나에연결되는지여부를나타낸다. 상기컨트롤러는상기감지결과에기반하여상기배터리팩이상기슬립모드들중 하나의슬립모드에진입하도록상기배터리팩을제어한다. 상기컨트롤러는또한충전스위치의및/또는방전스위치의 on/off 상태를제어하는제어신호를전송하기위한제어단자를포함할수 있다. 상기제어신호는상기감지결과에기반하여상기컨트롤러에의해생성된다.

5. 发明申请

WO2005077041A3 POWER CONVERTER 审中-公开
标题翻译：电源转换器
公开(公告)号：WO2005077041A3
公开(公告)日：2009-04-09
申请号：PCT/US2005004033
申请日：2005-02-09
申请人： O2MICRO INC , LIPCSEI LASZLO , POPOVICI CATALIN
发明人： LIPCSEI LASZLO , POPOVICI CATALIN
IPC分类号： H02M3/335 , H02M3/24 , H02M7/5387
CPC分类号： H02M3/33592 , H02M1/40 , H02M3/3376 , Y02B70/1475
摘要： A power converter (102c) may include a transformer (202) having a primary winding (206) and a secondary winding (208). A first high side switch (HDR1) and a first low side switch (LDR1) may be coupled in series along a first path (170) of a full bridge circuit, having a first node (LXl) between the first high side switch (HDR1) and the first low side switch (LDR1). The power converter (102c) may also comprise a second high side switch (HDR2) and a second low side switch (LDR2) coupled in series along a second path (172) of the full bridge circuit, having a second node (LX2) between the second high side switch (HDR2) and the second low side switch (LDR2). The power converter (102c) may further comprise a first path (602) capable of providing a first rectifier drive signal from the first node (LX1) to a second rectifier switch (56), and a second path (604) capable of providing a second rectifier drive signal from the second node (LX2) to a first rectifier switch (55).
摘要翻译：功率转换器（102c）可以包括具有初级绕组（206）和次级绕组（208）的变压器（202）。第一高侧开关（HDR1）和第一低侧开关（LDR1）可以沿着全桥电路的第一路径（170）串联耦合，其具有第一高侧开关（HDR1）之间的第一节点（LX1））和第一低侧开关（LDR1）。功率转换器（102c）还可以包括沿全桥电路的第二路径（172）串联耦合的第二高侧开关（HDR2）和第二低侧开关（LDR2），其具有位于全桥电路的第二路径（172）之间的第二节点第二高侧开关（HDR2）和第二低侧开关（LDR2）。功率转换器（102c）还可以包括能够提供从第一节点（LX1）到第二整流器开关（56）的第一整流器驱动信号的第一路径（602），以及能够提供从第二节点（LX2）到第一整流器开关（55）的第二整流器驱动信号。

6. 发明申请

WO2004045052A3 CONTROLLER FOR DC TO DC CONVERTER 审中-公开
标题翻译： DC-DC转换器控制器
公开(公告)号：WO2004045052A3
公开(公告)日：2005-12-29
申请号：PCT/US0336095
申请日：2003-11-12
申请人： O2MICRO INC , LIPCSEI LASZLO , POPESCU SERBAN-MIHAI
发明人： LIPCSEI LASZLO , POPESCU SERBAN-MIHAI
IPC分类号： H02M1/12 , H02M3/157 , H02M3/158
CPC分类号： H02M3/156 , H02M3/157 , H02M3/1582 , H02M3/1588 , H02M2001/0009 , H02M2001/0012 , Y02B70/1466
摘要： A controller (200) for a DC-to-DC converter is configured to provide a PWM signal in a first state during a first time interval based on an input voltage less a voltage level representative of an output voltage of the DC-to-DC converter. The controller (200) may provide the PWM signal in the first state based on the time it takes to charge an energy storage element (202) of the controller (200) to a predetermined level. The controller (200) may also provide an estimator of a zero inductor current level in an associated inductor when the energy storage element (202) is completely discharged. The controller may also be a digital controller (200) that counts time pulse to provide the PWM signal. A DC-to-DC converter including such a controller (200) and associated methods are also provided.
摘要翻译：用于DC-DC转换器的控制器（200）被配置为基于输入电压提供在第一时间间隔期间处于第一状态的PWM信号，所述输入电压减去表示DC-DC的输出电压的电压电平转换器。控制器（200）可以基于将控制器（200）的能量存储元件（202）充电到预定水平所花费的时间，来将第一状态的PWM信号提供给第一状态。当能量存储元件（202）完全放电时，控制器（200）还可以提供相关电感器中零电感器电流电平的估计器。控制器还可以是对时间脉冲进行计数以提供PWM信号的数字控制器（200）。还提供了包括这种控制器（200）和相关方法的DC-DC转换器。

7. 发明申请

WO2005094512A2 SECONDARY BATTERY PROTECTION CIRCUIT WITH OVER VOLTAGE TRANSIENT PROTECTION 审中-公开
标题翻译：具有过电压保护功能的二次电池保护电路
公开(公告)号：WO2005094512A2
公开(公告)日：2005-10-13
申请号：PCT/US2005/009803
申请日：2005-03-23
申请人： O2MICRO, INC. , DENNING, Bruce, S.
发明人： DENNING, Bruce, S.
IPC分类号： H01M10/42
CPC分类号： H01M10/42
摘要： A secondary battery protection circuit may include an over voltage detector circuit configured to monitor a voltage level of an associated cell of a rechargeable battery and provide an output signal to a switch in response to a comparison of the voltage level of the cell to an over voltage threshold level. The switch may be coupled between the rechargeable battery and a DC power source and capable of moving between conducting and non-conducting states. The switch may also be responsive to the output signal to protect the rechargeable battery if the voltage level of said cell is greater than the over voltage threshold level for a time interval less than or equal to a transient time interval.
摘要翻译：二次电池保护电路可以包括过电压检测器电路，其被配置为监测可再充电电池的相关电池的电压电平，并且响应于电池的电压电平与过电压的比较而向开关提供输出信号门限等级。开关可以耦合在可再充电电池和直流电源之间，并且能够在导通状态和非导通状态之间移动。如果在小于或等于瞬时时间间隔的时间间隔内，如果所述单元的电压电平大于过电压阈值电平，则开关还可以响应于输出信号来保护可再充电电池。

8. 发明申请

WO2004073089A2 SELECTOR CIRCUIT FOR POWER MANAGEMENT IN MULTIPLE BATTERY SYSTEMS 审中-公开
标题翻译：用于多个电池系统中的电源管理的选择器电路
公开(公告)号：WO2004073089A2
公开(公告)日：2004-08-26
申请号：PCT/US2004/003781
申请日：2004-02-10
申请人： O2MICRO INC. , BUCUR, Constantin , POPESCU-STANESTI, Vlad , NICULAE, Marian
发明人： POPESCU-STANESTI, Vlad , NICULAE, Marian
IPC分类号： H01M
CPC分类号： H02J7/34 , H02J7/0018 , H02J7/0027 , H02J7/0068 , Y02T10/7055 , Y10T307/625
摘要： A selector circuit configured to select among a DC power source and a plurality of batteries for an electronic device. The selector circuit is responsive to an output signal from an associated power management unit. The selector circuit is further configured to permit parallel operation of two or more of the batteries. The selector circuit may further act to independently verify power conditions and override any instructions from the PMU in certain instances to enhance power supply safety and battery life. A power supply block including the selector circuit and an electronic device including the power supply block is also provided. The selector circuit may be integrated with a charging circuit on one integrated circuit.
摘要翻译：一种选择器电路，被配置为在DC电源和用于电子设备的多个电池之间进行选择。选择器电路响应于来自相关联的电力管理单元的输出信号。选择器电路还被配置为允许两个或更多个电池的并联操作。选择器电路还可以在某些情况下独立地验证功率状况并且覆盖来自PMU的任何指令，以增强电源安全性和电池寿命。还提供了包括选择器电路的电源块和包括电源块的电子设备。选择器电路可以与一个集成电路上的充电电路集成。

9. 发明申请

WO2003096541A1 HIGH PRECISION ANALOG TO DIGITAL CONVERTER 审中-公开
标题翻译：高精度模拟数字转换器
公开(公告)号：WO2003096541A1
公开(公告)日：2003-11-20
申请号：PCT/US2003/013166
申请日：2003-04-30
申请人： O2MICRO, INC. , LIU, Liusheng , LI, Guoxing
发明人： LIU, Liusheng , LI, Guoxing
IPC分类号： H03M1/12
CPC分类号： H03M3/34 , H03M3/43 , H03M3/456
摘要： An analog to digital converter (108) 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 (100) including and ADC (108) consistent with the invention is also provided. Various methods of transferring charges in an ADC (108) are also provided.
摘要翻译：模数转换器（108）包括耦合在输入开关阵列和积分器之间的交叉开关阵列，其被配置为将电荷从第一输入电容器和第二输入电容器交替地传送到第一积分电容器和第二积分电容器，从而提高线性度电容器不匹配引起的问题。交叉开关阵列还可以被配置为在第一电荷转移时间间隔期间将电荷从第一输入电容器转移到第一积分电容器并且从第二输入电容器转移到第二积分电容器，并且从第一输入电容器到第二积分并且在第二电荷转移时间间隔期间从第二输入电容器到第一积分电容器。还提供了包括与本发明一致的ADC（108）的感测系统（100）。还提供了在ADC（108）中传送电荷的各种方法。

10. 发明申请

WO03036405B1 LAMP DRIVING TOPOLOGY 审中-公开
标题翻译：灯驱动拓扑学
公开(公告)号：WO03036405B1
公开(公告)日：2003-08-07
申请号：PCT/US0233966
申请日：2002-10-23
申请人： O2MICRO INC , CHOU JOHN , CRUZ ARNEL DELA
发明人： CHOU JOHN , CRUZ ARNEL DELA
IPC分类号： H05B41/24 , H05B41/232 , G05F1/00
CPC分类号： H05B41/232
摘要： A lamp driving system 10 that includes a first impedance 14 and a second impedance 16 coupled to the secondary side of a transformer 12, where the second impedance has a phase shifted value compared to the first impedance. Two lamp loads 18, 20 are connected in series together, and in parallel to the first 14 and second impedances 16 and to the transformer 12. The phase shift between the impedances ensures that the transformer need not supply double the striking voltage to strike the series-connected lamps. A difference in the resistance between the first and second impedances ensures that the lamps ignite in a specified sequence.
摘要翻译：灯驱动系统10，其包括耦合到变压器12的次级侧的第一阻抗14和第二阻抗16，其中第二阻抗具有与第一阻抗相比的相移值。两个灯负载18,20串联在一起，并且与第一阻抗16和第二阻抗16并联连接到变压器12.阻抗之间的相移确保变压器不需要提供两倍的击打电压来击打该系列连接灯。第一和第二阻抗之间的电阻差异确保灯以指定的顺序点燃。

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