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11. 发明申请

US20140203860A1 GATE DRIVE CIRCUIT FOR TRANSISTOR 有权
标题翻译：门极驱动电路用于晶体管
公开(公告)号：US20140203860A1
公开(公告)日：2014-07-24
申请号：US14100178
申请日：2013-12-09
申请人： DENSO CORPORATION
发明人： Yasutaka SENDA
IPC分类号： H03K17/082 , H03K17/30
CPC分类号： H03K17/30 , H03K17/0828
摘要： In a gate drive circuit, a gate voltage limiting circuit limits a gate voltage equal to or lower than a first limiting voltage in a first period, and limits the gate voltage equal to or lower than a second limiting voltage in a second period. A gate voltage generation circuit generates a drive voltage having a first set value, which is determined to operate the transistor in an active region, in the first period, and generates the drive voltage having a second set value, which is determined based on a gate withstand voltage of the transistor and loss in an on operation of the transistor in a saturated region, in the second period. The first limiting voltage is higher than the first set value by a predetermined value. The second limiting voltage is higher than the second set value by a predetermined value.
摘要翻译：在栅极驱动电路中，栅极电压限制电路在第一期间限制等于或低于第一限制电压的栅极电压，并且在第二周期中将栅极电压限制为等于或低于第二限制电压。栅极电压产生电路在第一周期中产生具有被确定为在有源区域中操作晶体管的第一设定值的驱动电压，并且产生具有基于栅极确定的第二设定值的驱动电压在第二周期中，晶体管的耐压和晶体管在饱和区域的导通动作中的损耗。第一限制电压高于第一设定值预定值。第二限制电压高于第二设定值预定值。

12. 发明授权

US08760215B2 Threshold voltage based power transistor operation 有权
标题翻译：基于阈值电压的功率晶体管操作
公开(公告)号：US08760215B2
公开(公告)日：2014-06-24
申请号：US13525440
申请日：2012-06-18
申请人： Scott B. Kesler
发明人： Scott B. Kesler
IPC分类号： H03K17/567 , G05F1/10 , H03K17/30 , H03K17/16 , G01R31/26
CPC分类号： H03K17/168 , G01R31/2616 , H03K17/30
摘要： A system and method for operating a power transistor. Parasitic impedances naturally present in a circuit board or other interconnect structures exhibit a parasitic impedance effective to generate a parasitic voltage signal in response to operating the power transistor. The parasitic voltage signal is monitored in order to better control the power transistor. In particular, the threshold voltage of the power transistor can be determined and used to more optimally control the power transistor.
摘要翻译：一种用于操作功率晶体管的系统和方法。天线存在于电路板或其它互连结构中的寄生阻抗表现出有效地响应于功率晶体管的操作产生寄生电压信号的寄生阻抗。监控寄生电压信号，以便更好地控制功率晶体管。特别地，可以确定功率晶体管的阈值电压并用于更好地控制功率晶体管。

13. 发明申请

US20130328599A1 GATE DRIVER UNIT FOR ELECTRICAL SWITCHING DEVICE 有权
标题翻译：电动开关装置的门驱动单元
公开(公告)号：US20130328599A1
公开(公告)日：2013-12-12
申请号：US13964366
申请日：2013-08-12
申请人： ABB Research Ltd.
发明人： Yanick LOBSIGER , Dominik BORTIS , Johann Walter KOLAR , Matti LAITINEN
IPC分类号： H03K17/30
CPC分类号： H03K17/30 , H02M1/088 , H03K17/082 , H03K17/10 , H03K17/12 , H03K17/28
摘要： An exemplary apparatus and method for using intelligent gate driver units with distributed intelligence to control antiparallel power modules or parallel-connected electrical switching devices like IGBTs is disclosed. The intelligent gate drive units use the intelligence to balance the currents of the switching devices, even in dynamic switching events. The intelligent gate driver units can use master-slave or daisy chain control structures and instantaneous or time integral differences of the currents of parallel-connected switching devices as control parameters. Instead of balancing the currents, temperature can also be balanced with the intelligent gate driver units.
摘要翻译：公开了一种使用具有分布式智能的智能门驱动器单元来控制反并联功率模块或并联电气开关器件（例如IGBT）的示例性装置和方法。智能门驱动单元即使在动态切换事件中也使用智能来平衡开关器件的电流。智能栅极驱动器单元可以使用主从或菊花链控制结构以及并联开关器件电流的瞬时或时间积分差作为控制参数。代替平衡电流，温度也可以与智能门驱动器单元平衡。

14. 发明申请

US20130285717A1 POWER-ON-RESET CIRCUITRY 有权
标题翻译：上电复位电路
公开(公告)号：US20130285717A1
公开(公告)日：2013-10-31
申请号：US13924153
申请日：2013-06-21
申请人： Altera Corporation
发明人： Ping Xiao , Weiyding Ding , Leo Min Maung
IPC分类号： H03L7/00
CPC分类号： H03L7/00 , G06F1/24 , H03K17/22 , H03K17/30 , H03K19/17736 , H03K19/17764
摘要： Power-on-reset circuitry is provided for integrated circuits such as programmable logic device integrated circuits. The power-on-reset circuitry may use comparator-based trip point voltage detectors to monitor power supply voltages. The trip point detectors may use circuitry to produce trip point voltages from a bandgap reference voltage. Controller logic may process signals from the trip point detectors to produce a corresponding power-on-reset signal. The power-on-reset circuitry may contain a noise filter that suppresses noise from power supply voltage spikes. Normal operation of the power-on-reset circuitry may be blocked during testing. The power-on-reset circuitry may be disabled when the bandgap reference voltage has not reached a desired level. The power-on-reset circuitry may be sensitive or insensitive to the power-up sequence used by the power supply signals. Brownout detection blocking circuitry may be provided to prevent the output from one of the trip point detectors from influencing the power-on-reset circuitry.
摘要翻译：为诸如可编程逻辑器件集成电路的集成电路提供上电复位电路。上电复位电路可以使用基于比较器的跳变点电压检测器来监视电源电压。跳变点检测器可以使用电路从带隙参考电压产生跳变点电压。控制器逻辑可以处理来自跳变点检测器的信号以产生相应的上电复位信号。上电复位电路可以包含抑制电源电压尖峰噪声的噪声滤波器。在测试期间可能会阻止上电复位电路的正常工作。当带隙参考电压尚未达到所需的电平时，上电复位电路可能会被禁止。上电复位电路可能对电源信号使用的上电顺序敏感或不敏感。可以提供掉电检测阻塞电路以防止一个跳变点检测器的输出影响上电复位电路。

15. 发明申请

US20110110004A1 Circuit Arrangement for Protection from Electrostatic Discharges and Method for Operating Same 有权
标题翻译：用于防止静电放电的电路布置及其操作方法
公开(公告)号：US20110110004A1
公开(公告)日：2011-05-12
申请号：US12675833
申请日：2008-08-22
申请人： Dieter Maier
发明人： Dieter Maier
IPC分类号： H02H9/04
CPC分类号： H05F3/00 , H01L23/60 , H01L23/62 , H01L24/06 , H01L27/0248 , H01L27/0259 , H01L2924/12035 , H01L2924/1301 , H01L2924/13034 , H01L2924/1305 , H01L2924/1306 , H01L2924/14 , H02H9/048 , H03K17/0812 , H03K17/0814 , H03K17/30 , H03K17/60 , H03K17/687 , H03K17/72 , H03K17/74 , H01L2924/00
摘要： A circuit arrangement for protection against electrostatic discharges has a diverting structure (ESD1), which comprises a diverting element (DE1) and a switchable element (SW1). The diverting element (DE1) is set up to drain off an electrostatic discharge between a first and a second terminal (K1, K2). The switchable element (SW1) can take a first and a second switching state, where a function of the diverting element (DE1) can be activated depending on the switching state of the switchable element (SW1).
摘要翻译：用于防止静电放电的电路装置具有转向结构（ESD1），其包括转向元件（DE1）和可切换元件（SW1）。转向元件（DE1）被设置为排出第一和第二端子（K1，K2）之间的静电放电。可切换元件（SW1）可以采取第一和第二切换状态，其中转向元件（DE1）的功能可以根据可切换元件（SW1）的切换状态被激活。

16. 发明授权

US07800870B2 Power protection apparatus and electronic control unit 有权
标题翻译：电源保护装置和电子控制单元
公开(公告)号：US07800870B2
公开(公告)日：2010-09-21
申请号：US12213677
申请日：2008-06-23
申请人： Toshihiro Matsumoto , Hiroshi Tsukuda
发明人： Toshihiro Matsumoto , Hiroshi Tsukuda
IPC分类号： H02H9/08
CPC分类号： H03K17/0822 , H02H7/1213 , H03K17/08122 , H03K17/08142 , H03K17/30
摘要： A power protection apparatus including: a switch unit connected in series in a power supply line from a power source to a DC regulator; a first short-circuit detector for detecting a short circuit based on an output voltage value of the DC regulator obtained by making the switch unit conductive for predetermined time and, after that, interrupting the switch unit; a second short-circuit detector for detecting a short circuit based on a value of current flowed in the switch unit when the switch unit is conductive; and a switch interrupting unit, when a short circuit is detected by the second short-circuit detector, for forcedly interrupting the switch unit regardless of a state of the switch unit controlled by the first short-circuit detector.
摘要翻译：一种电源保护装置，包括：开关单元，串联连接在从电源到DC调节器的电源线中; 第一短路检测器，用于基于通过使开关单元导通预定时间而获得的DC调节器的输出电压值，并且之后中断开关单元，来检测短路; 第二短路检测器，用于当开关单元导通时，基于在开关单元中流动的电流值来检测短路; 以及当所述第二短路检测器检测到短路时，不管由所述第一短路检测器控制的开关单元的状态如何，强制中断所述开关单元的开关中断单元。

17. 发明授权

US07696649B2 Power control circuitry and method 有权
标题翻译：电源控制电路和方法
公开(公告)号：US07696649B2
公开(公告)日：2010-04-13
申请号：US11889456
申请日：2007-08-13
申请人： Christophe Frey , Andrew John Sowden
发明人： Christophe Frey , Andrew John Sowden
IPC分类号： H01H7/00 , H01H9/54
CPC分类号： H03K19/0016 , H03K17/28 , H03K17/30 , Y10T307/461 , Y10T307/937 , Y10T307/951 , Y10T307/957
摘要： The power control circuitry comprises a series of power switching circuits, each power switching circuit being associated with one of the circuit portions and being provided with an enable signal and responsive to its enable signal being set to connect the voltage source to the at least one voltage line of the associated circuit portion. Further, at least one enable qualifying circuit is provided, each such enable qualifying circuit being associated with one of the power switching circuits and being arranged to generate an output signal used to determine the enable signal provided to a later power switching circuit in the series. Each enable qualifying circuit sets its output signal when both the enable signal provided to the associated power switching circuit is set and the at least one voltage line of the circuit portion associated with that power switching circuit has reached a predetermined voltage level.
摘要翻译：所述功率控制电路包括一系列功率开关电路，每个功率开关电路与所述电路部分中的一个相关联并且被提供有使能信号，并响应于其使能信号被设置为将所述电压源连接到所述至少一个电压相关电路部分的线。此外，提供至少一个使能限定电路，每个这样的使能限定电路与功率切换电路中的一个相关联，并且被布置成产生用于确定提供给该系列中的稍后电力开关电路的使能信号的输出信号。当提供给相关联的功率开关电路的使能信号都被置位并且与该功率开关电路相关联的电路部分的至少一个电压线已经达到预定电压电平时，每个使能限定电路设置其输出信号。

18. 发明授权

US07635852B2 Optical coupler with first and second division connector portion 有权
标题翻译：具有第一和第二分割连接器部分的光耦合器
公开(公告)号：US07635852B2
公开(公告)日：2009-12-22
申请号：US11955931
申请日：2007-12-13
申请人： Takehisa Ishihara
发明人： Takehisa Ishihara
IPC分类号： G02B27/00
CPC分类号： H01L31/153 , G02B6/4246 , H01L31/0203 , H01L31/18 , H01L2224/45144 , H01L2224/48247 , H01L2224/48257 , H01L2924/3025 , H03K17/30 , H03K17/795 , H01L2924/00
摘要： A device unit 46 is constituted by including a lead frame 50 on which a light-emitting mold portion 48 and a light-receiving mold portion 49 are mounted. Moreover, an exterior casing for housing the device unit 46 is constituted of two parts dividable into an upper casing 45 and a lower casing 47. Thus, by holding the device unit 46 by the upper casing 45 and the lower casing 47, external connection terminals 43 constructed of one end portion of the lead frame 50 can be fixed to the exterior casing and positioned in a connector portion 42. Therefore, by reducing the parts count to three and allowing the device unit 46 to be fixed to the exterior casing by a fixed fitting mechanism of the upper casing 45 and the lower casing 47 without performing welding, soldering, thermal caulking or the like, the assembling becomes easy.
摘要翻译：装置单元46由安装有发光模具部分48和光接收模具部分49的引线框架50构成。此外，用于容纳装置单元46的外部壳体由可分成上壳体45和下壳体47的两个部分构成。因此，通过由上壳体45和下壳体47保持装置单元46，外部连接端子由引线框架50的一个端部构成的端子43可以固定到外部壳体并且定位在连接器部分42中。因此，通过将部件数量减少到三个并且允许装置单元46通过一个不进行焊接，焊接，热铆接等的上壳体45和下壳体47的固定配合机构，组装变得容易。

19. 发明申请

US20080012041A1 Switching control system to reduce coil output voltage when commencing coil charging 有权
标题翻译：开关控制系统，可在线圈充电时减小线圈输出电压
公开(公告)号：US20080012041A1
公开(公告)日：2008-01-17
申请号：US11484502
申请日：2006-07-11
申请人： Scott B. Kesler
发明人： Scott B. Kesler
IPC分类号： H01L29/74
CPC分类号： F02P3/053 , F02P3/0456 , F02P9/002 , F02P11/00 , H03K17/14 , H03K17/30 , H03K17/567
摘要： A switching control system and method is provided that optimizes switching efficiencies for power switching applications including automotive ignition systems, solenoid drivers, motor drivers and power regulation systems. In an ignition system, a coil current switching magnitude is controlled at the start of ignition coil charging, thereby avoiding an untimely spark event. When the transistor threshold voltage is reached, the collapse rate of the ignition system transistor collector voltage is reduced by reducing the gate charging current. The reduced collector voltage slew rate results in a reduced primary and secondary coil output voltage. After the collector voltage collapses, a continued rapid charge is provided to place the transistor in a hard saturation bias condition. In an aspect, the present invention dynamically determines the threshold voltage of a power transistor. A mirror capacitor substantially matches a transistor gate voltage and a signal is generated when the mirror capacitor voltage proportionally exceeds the transistor gate voltage as a consequence of the transistor reaching a threshold voltage.
摘要翻译：提供一种开关控制系统和方法，其优化用于包括汽车点火系统，螺线管驱动器，电机驱动器和功率调节系统的功率开关应用的开关效率。在点火系统中，在点火线圈充电开始时控制线圈电流切换量，从而避免不合时宜的火花事件。当达到晶体管阈值电压时，通过减小栅极充电电流来降低点火系统晶体管集电极电压的崩溃率。降低的集电极电压转换速率导致初级和次级线圈输出电压降低。在集电极电压骤降之后，提供持续的快速充电以使晶体管处于硬饱和偏置状态。在一方面，本发明动态地确定功率晶体管的阈值电压。反射镜电容器基本上匹配晶体管栅极电压，并且当镜电容器电压成比例地超过晶体管栅极电压时产生信号，这是晶体管达到阈值电压的结果。

20. 发明授权

US06777996B2 Radio frequency clamping circuit 有权
标题翻译：射频钳位电路
公开(公告)号：US06777996B2
公开(公告)日：2004-08-17
申请号：US10385800
申请日：2003-03-11
申请人： Marlin C. Smith, Jr.
发明人： Marlin C. Smith, Jr.
IPC分类号： H03K508
CPC分类号： H03K17/30 , H03F2200/441 , H03K5/08 , H03K17/74 , H03M1/1295
摘要： A clamping circuit (10) including an input/output node (12), adapted to be coupled to the protected circuit or component; a first diode (D1) having an anode connected to the input/output node (12); a second diode (D2) having a cathode connected to the input/output node (12); a third diode (D3) connected between the cathode of the first diode (D1) at a first node (14) and the anode of the second diode (D2) at a second node (16); a first arrangement for supplying a first potential at the cathode of the first diode at first node (14); a second arrangement for supplying a second potential at the anode of the second diode at second node (16); a first capacitor (C1) connected between the cathode of the first diode at first node (14) and ground; and a second capacitor connected between the anode of the second diode at second node (16) and ground. In the illustrative embodiment, the anode of the third diode (D3) is connected to the first node (14), the first arrangement includes a first power supply and a first resistor (R1), and the second arrangement includes a second power supply and a second resistor (R2). The illustrative embodiment further includes a third resistor (R3) connected between the first node (14) and ground and a fourth resistor (R4) connected between the second node (16) and ground.
摘要翻译：一种包括输入/输出节点（12）的钳位电路（10），适于耦合到受保护的电路或部件; 具有连接到所述输入/输出节点（12）的阳极的第一二极管（D1）; 具有连接到所述输入/输出节点（12）的阴极的第二二极管（D2）; 连接在第一节点（14）处的第一二极管（D1）的阴极和第二节点（16）处的第二二极管（D2）的阳极之间的第三二极管（D3）; 用于在第一节点（14）处在第一二极管的阴极处提供第一电位的第一装置; 用于在第二节点（16）处在第二二极管的阳极处提供第二电位的第二装置; 连接在第一节点（14）的第一二极管的阴极与地之间的第一电容器（C1）以及连接在第二节点（16）处的第二二极管的阳极与地之间的第二电容器。在说明性实施例中，第三二极管（D3）的阳极连接到第一节点（14），第一装置包括第一电源和第一电阻器（R1），第二装置包括第二电源和第二电阻器（R2）。说明性实施例还包括连接在第一节点（14）和地之间的第三电阻器（R3）和连接在第二节点（16）和地之间的第四电阻器（R4）。

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