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1. 发明申请

WO2008137026A1 LEVEL SHIFT CIRCUIT WITH IMPROVED DV/DT SENSING AND NOISE BLOCKING 审中-公开
标题翻译：具有改进的DV / DT感测和噪声阻塞的水平移位电路
公开(公告)号：WO2008137026A1
公开(公告)日：2008-11-13
申请号：PCT/US2008/005609
申请日：2008-05-01
申请人： INTERNATIONAL RECTIFIER CORPORATION , DUPPILS, Mathias , FANG, Min
发明人： DUPPILS, Mathias , FANG, Min
IPC分类号： H03K17/16
CPC分类号： H03K17/162 , H03K17/18 , H03K17/74 , H03K2217/0036
摘要： A level shift circuit in accordance with the present application seeks to meet the need of high voltage level shift signaling with minimum delay and power dissipation by using parasitic emulation, blocking of signaling during times of common mode noise, and mismatch filtering to enhance operation robustness to circuit mismatch and delay. A dv/dt sensing circuit is provided to detect any slew in offset between negative supply voltages and ground in a circuit. This detection is used to control a noise canceling circuit to ensure that noise that results from that offset is not propagated to the output of the level shift circuit. A parasitic emulator is preferably used to provide dv/dt sensing. The output of the parasitic emulator is used to activate a noise canceling circuit to prevent noise from reaching the output terminal of the level shift circuit.
摘要翻译：根据本申请的电平移位电路旨在通过使用寄生仿真，在共模噪声期间阻塞信令以及不匹配滤波来满足具有最小延迟和功率耗散的高电压电平移位信令的需要，并且提高了操作的鲁棒性电路不匹配和延迟。提供dv / dt感测电路以检测电路中的负电源电压和接地之间的任何摆幅偏移。该检测用于控制噪声消除电路，以确保由该偏移产生的噪声不传播到电平移位电路的输出。优选地使用寄生仿真器来提供dv / dt感测。寄生仿真器的输出用于激活噪声消除电路，以防止噪声到达电平移位电路的输出端。

2. 发明申请

WO2008106235A1 TRENCH MOSGATED DEVICE WITH DEEP TRENCH BETWEEN GATE TRENCHES 审中-公开
公开(公告)号：WO2008106235A1
公开(公告)日：2008-09-04
申请号：PCT/US2008/002840
申请日：2008-03-03
申请人： INTERNATIONAL RECTIFIER CORPORATION , BODEN, Milton, J.
发明人： BODEN, Milton, J.
IPC分类号： H01L21/335
CPC分类号： H01L29/7813 , H01L29/0653 , H01L29/1095 , H01L29/41766
摘要： A trench gated MOSFET especially for operation in high radiation environments has a deep auxiliary trench located between the gate trenches. A boron implant is formed in the walls of the deep trench (in an N channel device); a thick oxide is formed in the bottom of the trench, and boron doped polysilicon which is connected to the source electrode fills the trench. The structure has reduced capacitance and improved resistance to single event rupture and single event breakdown and improved resistance to parasitic bipolar action.
摘要翻译：专门用于在高辐射环境中工作的沟槽门控MOSFET具有位于栅极沟槽之间的深辅助沟道。在深沟槽的壁中（在N沟道器件中）形成硼注入物; 在沟槽的底部形成厚的氧化物，与源极连接的硼掺杂多晶硅填充沟槽。该结构具有降低的电容并改善对单事件断裂和单事件击穿的抵抗能力以及改善的寄生双极作用电阻。

3. 发明申请

WO2008094497A1 TERMINATION TRENCH STRUCTURE FOR MOSGATED DEVICE AND PROCESS FOR ITS MANUFACTURE 审中-公开
标题翻译：用于MOSGATED设备的终止倾斜结构及其制造方法
公开(公告)号：WO2008094497A1
公开(公告)日：2008-08-07
申请号：PCT/US2008/001081
申请日：2008-01-28
申请人： INTERNATIONAL RECTIFIER CORPORATION , MA, Ling
发明人： MA, Ling
IPC分类号： H01L21/336
CPC分类号： H01L29/7813 , H01L29/402 , H01L29/407 , H01L29/41741 , H01L29/66734 , H01L29/7811
摘要： A process for fabrication of a MOSgated device that includes a plurality of spaced trenches in the termination region thereof.
摘要翻译：一种用于制造在其终端区域中包括多个间隔开的沟槽的MOS器件的工艺。

4. 发明申请

WO2008086001A2 ACTIVE AREA SHAPING FOR III-NITRIDE DEVICE AND PROCESS FOR ITS MANUFACTURE 审中-公开
标题翻译： III-NITRIDE装置的有源面积成形及其制造工艺
公开(公告)号：WO2008086001A2
公开(公告)日：2008-07-17
申请号：PCT/US2008/000305
申请日：2008-01-09
申请人： INTERNATIONAL RECTIFIER CORPORATION , BRIERE, Michael, A. , BRIDGER, Paul , CAO, Jianjun
发明人： BRIERE, Michael, A. , BRIDGER, Paul , CAO, Jianjun
IPC分类号： H01L29/20
CPC分类号： H01L29/778 , H01L21/28264 , H01L23/291 , H01L23/3171 , H01L29/2003 , H01L29/42376 , H01L29/51 , H01L29/66431 , H01L29/66462 , H01L29/66477 , H01L29/7787 , H01L29/78 , H01L2924/0002 , H01L2924/00
摘要： A Ill-nitride heterojunction power semiconductor device that includes a passivation body with a gate well having a top mouth that is wider than the bottom mouth thereof, and a method of fabrication for the same.
摘要翻译：一种III族氮化物异质结功率半导体器件及其制造方法，该III族氮化物异质结功率半导体器件包括具有栅极阱的钝化体，该栅极阱具有比其底部口部更宽的顶部开口。

5. 发明申请

WO2008021440A2 BUCK CONVERTER FAULT DETECTION METHOD 审中-公开
标题翻译： BUCK转换器故障检测方法
公开(公告)号：WO2008021440A2
公开(公告)日：2008-02-21
申请号：PCT/US2007/018149
申请日：2007-08-15
申请人： INTERNATIONAL RECTIFIER CORPORATION , WU, Wenkai , SCHUELLEIN, George
发明人： WU, Wenkai , SCHUELLEIN, George
IPC分类号： H02H7/10
CPC分类号： H02H7/1213
摘要： A circuit for detecting faults in at least one converter in a converter system, the at least one converter including a switching stage having high- and low-side switches connected at a switching node and fault circuitry for managing a plurality of fault conditions. The circuit including a gate driver circuit connected to gate terminals of the high- and low-side switches for providing PWM signals to control the switching stage; a comparator circuit for comparing a voltage at the switching node to the input voltage and providing an output signal, the comparator circuit having output, positive and negative terminals; a fourth capacitor connected to the output terminal of the comparator circuit to generate an AC component of the comparator circuit output signal; and a rectifier circuit connected to the fourth capacitor for rectifying the AC component of the comparator circuit and providing a fault-indicating signal to the gate driver. The fault-indicating signal is used to drive the fault circuitry to correct a fault condition selected from the plurality of fault conditions in the converter system.
摘要翻译：一种用于检测转换器系统中的至少一个转换器中的故障的电路，所述至少一个转换器包括具有连接在开关节点的高侧和低侧开关的开关级，以及用于管理多个故障条件的故障电路。该电路包括连接到高侧和低侧开关的栅极端的栅极驱动电路，用于提供PWM信号以控制开关级; 比较器电路，用于将开关节点处的电压与输入电压进行比较并提供输出信号，所述比较器电路具有输出端子，正极端子和负极端子; 连接到比较器电路的输出端的第四电容器，以产生比较器电路输出信号的AC分量; 以及整流电路，连接到第四电容器，用于对比较电路的AC分量进行整流，并向门驱动器提供故障指示信号。故障指示信号用于驱动故障电路以校正从转换器系统中的多个故障状况中选择的故障状况。

6. 发明申请

WO2008019122A2 STARTUP AND SHUTDOWN CLICK NOISE ELIMINATION FOR CLASS D AMPLIFIER 审中-公开
标题翻译： D类放大器的启动和关闭消除噪声
公开(公告)号：WO2008019122A2
公开(公告)日：2008-02-14
申请号：PCT/US2007/017460
申请日：2007-08-07
申请人： INTERNATIONAL RECTIFIER CORPORATION , STRYDOM, Johan Tjeerd , HONDA, Jun
发明人： STRYDOM, Johan Tjeerd , HONDA, Jun
IPC分类号： H03F3/217
CPC分类号： H03F3/217 , H03F1/305
摘要： A method of minimizing an audible click noise from a speaker in a Class D audio power amplifier upon shutdown or startup of a switching stage having two switches series connected at a node, the speaker being connected to the node via an output filter comprising an inductor and a capacitor, the switches being controlled by a controller. The method including the steps of determining a timing interval at the node to transition a peak voltage of the capacitor, the capacitor voltage being a speaker voltage; and eliminating the audible transient voltage excursion across the speaker that causes a click noise during the timing interval, wherein at startup ON and OFF times of the switches are incrementally increased from zero to a normal mode and at shutdown the ON OFF times of the switches are incrementally decreased from the normal mode to zero.
摘要翻译：一种用于在关闭或启动具有在节点处连接的两个开关串联的开关级时使来自D类音频功率放大器的扬声器的可听见咔哒噪声最小化的方法，所述扬声器连接到节点经由包括电感器和电容器的输出滤波器，所述开关由控制器控制。所述方法包括以下步骤：确定所述节点处的时序间隔以转变所述电容器的峰值电压，所述电容器电压是扬声器电压; 以及消除在定时间隔期间在扬声器两端引起卡嗒声的可听见的瞬态电压偏移，其中在开关的开启和关闭时间从零增加到正常模式并且在关闭时开关的开启关闭时间是从正常模式递增地减少到零。

7. 发明申请

WO2008011041A3 IMPROVED BALLAST CONTROL CIRCUIT FOR USE WITH CCFL AND EEFL LAMPS 审中-公开
公开(公告)号：WO2008011041A3
公开(公告)日：2008-01-24
申请号：PCT/US2007/016227
申请日：2007-07-18
申请人： INTERNATIONAL RECTIFIER CORPORATION , GREEN, Peter
发明人： GREEN, Peter
IPC分类号： H05B37/02 , H05B41/16
摘要： A ballast control circuit for driving at least one gas discharge lamp (14) in accordance with an embodiment of the present applicatio includes a high side driver operable to provide a high side driving signal to a high side switch (MHS) of a half bridge (12) controlle a ballast control circuit, wherein the high side driving signal indicates a preferred duty cycle for the high side switch (MHS), a low s driver operable to provide a low side driving signal to a low side switch (MLS) of the half bridge, wherein the low side driving sign indicates a preferred duty cycle for the low side switch and a dead time control circuit operable to provide a dead time signal that indicates a dead time during which both the high side and low side siwtches (MHS, MLS) are turned off, wherein the dead time is s based on a value of an external dead time resistor (TDT).

8. 发明申请

WO2008008353A3 DIGITAL PWM CONTROLLER 审中-公开
公开(公告)号：WO2008008353A3
公开(公告)日：2008-01-17
申请号：PCT/US2007/015756
申请日：2007-07-11
申请人： INTERNATIONAL RECTIFIER CORPORATION , WU, Wenkai , SCHUELLEIN, George
发明人： WU, Wenkai , SCHUELLEIN, George
IPC分类号： G05F1/00 , G21C7/06 , H03M1/00 , H03M1/82
摘要： A control circuit for a multi-phase converter (30) including an analog front-end circuit (32) for receiving and processing an output voltage and current of the converter circuits and an average output current, a digital circuit (34) for producing an output voltage reference for setting a desired output voltage of the converter, and an error circuit (38) for comparing the output voltage reference and a parameter related to said output voltage and current for generating control signals for controlling the converter circuits, said error circui (38) including an Analog to Digital Converter circuit (26), further comprising a digital PWM generation circuit (18) controlled by said Analog to Digital converter circuit (26) for generating digital control signals for controlling the converter circuits.

9. 发明申请

WO2007130643A3 DIE-ON-LEADFRAME (DOL) WITH HIGH VOLTAGE ISOLATION 审中-公开
公开(公告)号：WO2007130643A3
公开(公告)日：2007-11-15
申请号：PCT/US2007/010950
申请日：2007-05-04
申请人： INTERNATIONAL RECTIFIER CORPORATION , HAUENSTEIN, Henning, M. , MARCINKOWSKI, Jack , LIN, Heny
发明人： HAUENSTEIN, Henning, M. , MARCINKOWSKI, Jack , LIN, Heny
IPC分类号： H01L23/24
摘要： A high voltage semiconductor module has a leadframe with spaced pads which is connected to a heat sink plate by a curable insulation layer on the top of the plate. Semiconductor die may be soldered to the leadframe pads before or after assembly to the plate. The insulation layer may be a curable epoxy or a B stage IMS plate.

10. 发明申请

WO2007130533A2 METHOD AND APPARATUS FOR IMPROVING LIGHT LOAD EFFICIENCY IN SWITCHING POWER SUPPLIES 审中-公开
标题翻译：改善开关电源轻负载效率的方法和装置
公开(公告)号：WO2007130533A2
公开(公告)日：2007-11-15
申请号：PCT/US2007/010761
申请日：2007-05-03
申请人： INTERNATIONAL RECTIFIER CORPORATION , CHEN, Rengang , BROWN, James Steven
发明人： CHEN, Rengang , BROWN, James Steven
IPC分类号： H02M3/335
CPC分类号： H02M3/156 , H02M2001/0032 , Y02B70/16
摘要： A circuit for transitioning between a discontinuous and a fixed frequency continuous conduction mode (DCM) and (CCM) of a power converter having a driver receiving PWM signals and controlling a switching stage comprises a control switch and a sync switch connected at a common switching node for driving a load. The circuit including a PWM modulator for providing PWM signals; and a mode selector for receiving a duty cycle value, a preset switching period, and a duty cycle at a critical conduction point having a switching frequency equal to the preset switching period and providing an on-time of the control switch and a switching period to the PWM modulator, wherein if the duty cycle value is greater than the duty cycle at a critical conduction point, the PWM modulator will drive will provide the PWM signals to operate the switching stage in the CCM with constant-frequency duty cycle control, and if the duty cycle value is less than duty cycle at a critical conduction point, the PWM modulator will drive will provide the PWM signals to operate the switching stage in the DCM by turning off the sync switch when a load current becomes negative.
摘要翻译：用于在具有接收PWM信号并控制切换级的驱动器的功率转换器的不连续和固定频率连续传导模式（DCM）和（CCM）之间转换的电路包括控制开关和连接在公共交换节点用于驱动负载。该电路包括用于提供PWM信号的PWM调制器; 以及模式选择器，用于在具有等于预设开关周期的开关频率的临界导通点处接收占空比值，预设开关周期和占空比，并且提供控制开关的导通时间和开关周期 PWM调制器，其中如果占空比值大于在临界导通点处的占空比，则PWM调制器将驱动将提供PWM信号以恒定频率占空比控制在CCM中操作开关级，并且如果占空比值小于临界导通点的占空比，当负载电流变为负时，PWM调制器将驱动通过关闭同步开关来提供PWM信号来操作DCM中的开关级。

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