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1. 发明授权

US06906399B2 Integrated circuit including semiconductor power device and electrically isolated thermal sensor 有权
标题翻译：集成电路包括半导体功率器件和电隔离热传感器
公开(公告)号：US06906399B2
公开(公告)日：2005-06-14
申请号：US10287034
申请日：2002-11-04
申请人： John R. Fruth , Scott B. Kesler
发明人： John R. Fruth , Scott B. Kesler
IPC分类号： G01K7/01 , H01L29/739 , H01L29/78 , H01L27/82
CPC分类号： H01L29/7804 , G01K7/01 , H01L29/0696 , H01L29/7395
摘要： An integrated circuit (10) includes a thermal sensing device (20) and a power-switching device (12) such as an IGBT. The power device (12) is fabricated in a conventional manner on a semiconductor substrate, and the thermal sensing device (20) is fabricated on an electrical insulation layer (74) formed over the substrate. The thermal sensing device (20) may be provided in the form of a number of series-connected polysilicon diodes (D1-D3) positioned adjacent to the power device (12) such that the operating temperature of the thermal sensing device (20) is near that of the power device (12). In response to an input current IC, the thermal sensing device (20) produces an output voltage (VD) that is substantially linear with surface die temperature, and which reacts rapidly to changes in surface die temperature. The thermal sensing device (20) is completely electrically isolated from the power device, thereby eliminating any electrical interaction therebetween.
摘要翻译：集成电路（10）包括热感测装置（20）和诸如IGBT的功率开关装置（12）。功率器件（12）以常规方式制造在半导体衬底上，并且热感测器件（20）制造在形成在衬底上的电绝缘层（74）上。热感测装置（20）可以以邻近功率装置（12）定位的多个串联多晶硅二极管（D 1 -D 3）的形式提供，使得热感测装置（20）的工作温度）接近功率器件（12）的功率器件。响应于输入电流I C C，热感测装置（20）产生与表面模头温度基本上线性的输出电压（V SUB D），并且其响应于迅速改变表面模头温度。热感测装置（20）与动力装置完全电绝缘，从而消除它们之间的任何电气相互作用。

2. 发明授权

US06987655B2 Thermal overload protection circuit for an automotive ignition system 有权
标题翻译：汽车点火系统热过载保护电路
公开(公告)号：US06987655B2
公开(公告)日：2006-01-17
申请号：US10287033
申请日：2002-11-04
申请人： Scott B. Kesler , Duane E. Beyler , John R. Fruth
发明人： Scott B. Kesler , Duane E. Beyler , John R. Fruth
IPC分类号： H02H5/04
CPC分类号： H03K17/0828 , F02D2041/2065 , F02D2041/2075 , F02P3/051 , H03K2017/0806
摘要： Thermal overload protection circuitry 14 for an automotive ignition system includes a gate drive circuit (18) responsive to a control signal (ESTB) to produce a drive signal (VGD) for driving a power switching device (22) separate from the protection circuitry (14), and a thermal overload protection circuit (40) configured to supply a first current (I1) to a thermal sensing component (38) associated with, and having an operating temperature defined by, the power switching device (22), wherein the first current (I1) has a magnitude defined by the operating temperature of the thermal sensing component (38). The first current is multiplied by a current controlled current source (60) to produce a second current (I2), and the second current is used to limit the drive signal (VGD) to thereby maintain the operating temperature of the power switching device (22) below an operating temperature limit.
摘要翻译：用于汽车点火系统的热过载保护电路14包括响应于控制信号（ESTB）产生用于驱动电力开关装置（22）的驱动信号（V SUB）的门驱动电路（18））与保护电路（14）分离，以及热过载保护电路（40），其被配置为向第一电流（I 1）提供与热功率相关联并具有由功率定义的工作温度的热敏元件（38）开关装置（22），其中所述第一电流（I1）具有由所述热感测部件（38）的工作温度限定的大小。第一电流乘以电流控制电流源（60）以产生第二电流（I 2），并且第二电流用于限制驱动信号（V SUB），从而保持电力开关装置（22）的工作温度低于工作温度限制。

3. 发明授权

US06955164B2 Automotive ignition system with sparkless thermal overload protection 有权
标题翻译：汽车点火系统，无火花热过载保护
公开(公告)号：US06955164B2
公开(公告)日：2005-10-18
申请号：US10779906
申请日：2004-02-17
申请人： Scott B. Kesler , John R. Fruth
发明人： Scott B. Kesler , John R. Fruth
IPC分类号： F02P3/055 , G01K7/01 , F02P11/00
CPC分类号： F02P3/055 , F02D2041/2065 , F02P3/0453 , F02P9/002 , G01K7/01
摘要： An interface for providing thermal overload protection includes a switching device, a temperature indicating device, a drive circuit and a thermal monitoring circuit. The thermal monitoring circuit is coupled across the temperature indicating device and provides a shutdown signal to the drive circuit when the temperature of the switching device is above a predetermined temperature level as indicated by a temperature signal provided by the temperature indicating device. The drive circuit responds to the shutdown signal by removing current sources and current sinks from a control terminal of the switching device at which point leakage currents cause the switching device to reduce a drive current to an inductive load.
摘要翻译：用于提供热过载保护的接口包括开关装置，温度指示装置，驱动电路和热监测电路。当温度指示装置提供的温度信号所指示的开关装置的温度高于预定的温度水平时，热监测电路跨越温度指示装置耦合并提供关断信号给驱动电路。驱动电路通过从开关器件的控制端去除电流源和电流吸收器来响应关断信号，在该点处泄漏电流导致开关器件降低到感性负载的驱动电流。

4. 发明授权

US07159583B2 Technique for drive current stabilization of an automotive ignition system 有权
标题翻译：汽车点火系统的驱动电流稳定技术
公开(公告)号：US07159583B2
公开(公告)日：2007-01-09
申请号：US10973769
申请日：2004-10-26
申请人： Duane E. Beyler , Scott B. Kesler
发明人： Duane E. Beyler , Scott B. Kesler
IPC分类号： F02P1/00 , F02P3/06
CPC分类号： F02P3/053 , F02P3/0442 , F02P9/002 , H03K17/0828 , H03K17/168
摘要： Drive current stabilization is achieved through the management of a drive current. The drive current may include a control current that is provided to a control terminal of a switch, a current limit input current that is provided to a current limit circuit associated with the switch and a stabilization current. The switch carries a load current responsive to a control signal on the control terminal. The magnitude of the control current is monitored and a magnitude of the stabilization current is increased responsive to a decrease in the magnitude of the control current to substantially maintain a magnitude of the drive current.
摘要翻译：通过管理驱动电流实现驱动电流稳定。驱动电流可以包括提供给开关的控制端的控制电流，提供给与开关相关联的限流电路的电流限制输入电流和稳定电流。该开关响应控制端子上的控制信号承载负载电流。监视控制电流的大小，并且响应于控制电流的幅度的减小而基本上保持驱动电流的大小来增加稳定电流的幅度。

5. 发明授权

US06369646B1 Leakage current compensation circuit 有权
标题翻译：泄漏电流补偿电路
公开(公告)号：US06369646B1
公开(公告)日：2002-04-09
申请号：US09771056
申请日：2001-01-29
申请人： Scott B. Kesler , Thomas L. Dinkledine
发明人： Scott B. Kesler , Thomas L. Dinkledine
IPC分类号： H01L2500
CPC分类号： H03F1/302 , H01L21/761 , H01L29/0821 , H01L2924/0002 , H01L2924/00
摘要： A compensation circuit provides a compensation current to a node of an integrated circuit that experiences increased reverse-bias leakage current between a n-type leaking epitaxial region and a p-type substrate with increased temperature. The compensation circuit includes a p-type substrate, a n-type compensator epitaxial region, an contact region, a center p-type region and a plurality of peripheral p-type regions. The peripheral p-type regions function as either a node collector or a reference collector. The compensation current is substantially determined by the ratio of the total peripheral surface area facing the center p-type region associated with the node collector and the total peripheral surface area facing the center p-type region associated with the reference collector and is also determined by the total surface area of the n-type compensator epitaxial region.
摘要翻译：补偿电路向集成电路的节点提供补偿电流，该集成电路的节点在具有升高的温度的n型泄漏外延区域和p型衬底之间经历增加的反向偏置漏电流。补偿电路包括p型衬底，n型补偿器外延区域，接触区域，中心p型区域和多个外围p型区域。外围p型区域用作节点收集器或参考收集器。补偿电流基本上由面对与节点收集器相关联的中心p型区域的总外围表面面积与面向与参考收集器相关联的中心p型区域的总外围表面积的比率确定，并且还由 n型补偿器外延区域的总表面积。

6. 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。

7. 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。

8. 发明授权

US5184036A Method of limiting output current from an interface drive circuit 失效
标题翻译：从接口驱动电路限制输出电流的方法
公开(公告)号：US5184036A
公开(公告)日：1993-02-02
申请号：US742813
申请日：1991-08-09
申请人： Scott B. Kesler , Mark W. Gose
发明人： Scott B. Kesler , Mark W. Gose
IPC分类号： H03F1/52 , H02H9/02
CPC分类号： H02H9/02
摘要： A circuit limits the output drive current from an interface drive circuit comprising drive transistors. The circuit makes dual use of an external series supply resistor as a current sensing element. The increased voltage drop across the external resistor due to excessive current draw through the drive transistors is coupled to a control transistor, which reduces base drive current to the drive transistors in response to the increased voltage drop.

9. 发明授权

US07675346B2 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：US07675346B2
公开(公告)日：2010-03-09
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： H03K17/04
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。

10. 发明授权

US06956410B2 Automotive ignition system with battery dependent over-dwell protection 有权
公开(公告)号：US06956410B2
公开(公告)日：2005-10-18
申请号：US10713138
申请日：2003-11-13
申请人： Scott B. Kesler
发明人： Scott B. Kesler
IPC分类号： F02P3/05 , H03K5/24 , H03K5/22
CPC分类号： H03K3/02337 , F02P3/051 , H03K5/2418
摘要： A technique for reducing input currents associated with a comparator circuit during certain events includes minimizing bias currents associated with the comparator circuit when a magnitude of an input signal at a signal input of the comparator circuit is a predetermined value from a magnitude of a reference signal applied to a reference input of the comparator circuit. The bias currents are increased when the magnitude of the input signal is within the predetermined value of the magnitude of the reference signal.

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