公开(公告)号：US06882582B2

公开(公告)日：2005-04-19

申请号：US10362467

申请日：2002-03-29

申请人： Thierry Sicard ,  Eric Scott Carman

发明人： Thierry Sicard ,  Eric Scott Carman

IPC分类号： G05F3/26 ,  G11C16/04 ,  G11C27/00 ,  H03F1/30 ,  H03F3/343 ,  G11C7/00

CPC分类号： G11C7/04 ,  G11C16/0441 ,  G11C27/005

摘要： A voltage reference circuit (40) is provided for producing a low temperature-coefficient analogue trim value. A pair of EEPROMs (50 and 60) are arranged such that the trim value is the difference between two EEPROM transistor threshold voltages. The substantially temperature dependent components of threshold voltage cancel out leaving only the substantially temperature independent trim value. Therefor the temperature coefficient of the voltage reference circuit (40) is negligible.

摘要翻译： 提供了一个用于产生低温度系数模拟调整值的电压参考电路（40）。 一对EEPROM（50和60）被布置成使得修整值是两个EEPROM晶体管阈值电压之间的差。 阈值电压的实质上依赖于温度的分量抵消，仅留下基本上温度无关的微调值。 因此，电压基准电路（40）的温度系数可以忽略不计。

公开(公告)号：US10003330B2

公开(公告)日：2018-06-19

申请号：US15028623

申请日：2013-10-18

申请人： Thierry Sicard

发明人： Thierry Sicard

IPC分类号： H03B1/00 ,  H03K3/00 ,  H03K17/567 ,  H03K17/0412 ,  H03K17/06 ,  H03K17/14 ,  H03K7/08

CPC分类号： H03K17/567 ,  H03K7/08 ,  H03K17/0412 ,  H03K17/06 ,  H03K17/14 ,  H03K2017/066 ,  H03K2217/0081

摘要： The present invention relates to an insulated gate bipolar transistor (IGBT) driver module for driving at least one gate of at least one IGBT device, and method therefor. The IGBT driver module comprises at least one series capacitance operably coupled between a driver component of the IGBT driver module and the at least one gate of the at least one IGBT device. The IGBT driver module further comprises at least one series capacitance charge adjustment component controllable to determine a gate voltage error (ΔGerr) at the at least one gate of the at least one IGBT device and dynamically adjust a charge of the at least one series capacitance based at least partly on the determined gate voltage error (ΔGerr).

公开(公告)号：US09664729B2

公开(公告)日：2017-05-30

申请号：US13882710

申请日：2013-01-09

申请人： Randall C. Gray ,  Ibrahim S. Kandah ,  Philipe J. Perruchoud ,  John M. Pigott ,  Thierry Sicard

发明人： Randall C. Gray ,  Ibrahim S. Kandah ,  Philipe J. Perruchoud ,  John M. Pigott ,  Thierry Sicard

IPC分类号： G01R31/02 ,  G01R31/26 ,  G01R31/327 ,  H01H9/00

CPC分类号： G01R31/2608 ,  G01R31/261 ,  G01R31/3274 ,  H01H9/00

摘要： Operation of an insulated gate bipolar transistor (IGBT) is monitored by an apparatus that has a capacitor connected between a collector of the IGBT and an input node. A processing circuit, coupled to the input node, responds to current flowing through the capacitor by providing an indication whether a voltage level at the collector is changing and the rate of that change. The processing circuit also employs the capacitor current to provide an output voltage that indicates the voltage at the IGBT collector.

公开(公告)号：US09595954B2

公开(公告)日：2017-03-14

申请号：US14536912

申请日：2014-11-10

申请人： Thierry Sicard

发明人： Thierry Sicard

IPC分类号： H03K3/00 ,  H03K17/687 ,  H03K17/16

CPC分类号： H03K17/687 ,  H03K17/165 ,  H03K17/168

摘要： A circuit including and a method utilizing an improved bootstrap topology provide power to a high side (HS) driver for high efficiency applications. The improved bootstrap topology includes a transfer capacitor to store charge and to recharge a bootstrap capacitor, which provides power to the HS driver. The improved bootstrap topology also includes a resistor connected to the transfer capacitor to charge the transfer capacitor from a voltage source and to isolate the transfer capacitor from high voltage pulses.

摘要翻译： 一种包括电路和利用改进的自举拓扑的方法为高效应用向高端（HS）驱动器提供电力。 改进的自举拓扑包括传输电容器，用于存储电荷并为自动电容器充电，该自举电容为HS驱动器提供电力。 改进的自举拓扑还包括连接到转移电容器的电阻器，以从电压源对转移电容器充电并将转移电容器与高电压脉冲隔离。

公开(公告)号：US09584046B2

公开(公告)日：2017-02-28

申请号：US14899529

申请日：2013-07-04

申请人： Thierry Sicard

发明人： Thierry Sicard

IPC分类号： H02M7/538 ,  H02M7/5387 ,  H03K17/06 ,  H03K17/689 ,  H02M7/537 ,  H03K3/037 ,  H03K5/24 ,  H03K17/567

CPC分类号： H02M7/53871 ,  H02M1/08 ,  H02M7/537 ,  H02M7/5387 ,  H03K3/037 ,  H03K5/24 ,  H03K17/0406 ,  H03K17/04123 ,  H03K17/06 ,  H03K17/567 ,  H03K17/689

摘要： A gate drive circuit to drive a gate terminal of a power transistor. The gate drive circuit includes a first capacitor, a first switch, a measurement circuit and a reference source to generate a reference voltage. The first capacitor has a first terminal electrically coupled to the gate terminal of the power transistor. The first switch is arranged between a second terminal of the first capacitor and a first predetermined voltage. The measurement circuit is used to measure a differential voltage across the first capacitor. The gate drive circuit is configured to pre-charge the first capacitor to obtain a second predetermined voltage across the first capacitor. The gate drive circuit is further configured to arrange the first switch in an on state to turn on the power transistor and to electrically couple the first predetermined voltage to the second terminal of the first capacitor. The first capacitor is initially pre-charged at the second predetermined voltage.

摘要翻译： 驱动功率晶体管的栅极端的栅极驱动电路。 栅极驱动电路包括第一电容器，第一开关，测量电路和参考源，以产生参考电压。 第一电容器具有电耦合到功率晶体管的栅极端子的第一端子。 第一开关布置在第一电容器的第二端子和第一预定电压之间。 测量电路用于测量第一电容器两端的差分电压。 栅极驱动电路被配置为对第一电容器进行预充电以在第一电容器两端获得第二预定电压。 栅极驱动电路还被配置为将第一开关布置在导通状态以接通功率晶体管并将第一预定电压电耦合到第一电容器的第二端子。 第一电容器最初在第二预定电压下预充电。

公开(公告)号：US09397658B2

公开(公告)日：2016-07-19

申请号：US14552573

申请日：2014-11-25

申请人： Thierry Sicard ,  Philippe Perruchoud

发明人： Thierry Sicard ,  Philippe Perruchoud

IPC分类号： H03G3/00 ,  H03K17/687 ,  H02P27/06 ,  B60L11/18

CPC分类号： H03K17/687 ,  B60L11/1803 ,  H02P27/06

摘要： A gate drive circuit drives a control terminal of a power transistor and comprises: a drive terminal for electrically coupling the control terminal, a first reference source, a first switch arranged between the first reference source and the control terminal, a switch control circuit and a measurement circuit. The first switch is switched-on to turn-off the power transistor. The switch control circuit switches-off the first switch during a transition period to a fully off-state. The measurement circuit outputs a control signal to the switch control circuit in response to a value of a voltage at the control terminal measured when a discharge current flowing to the drive terminal has been reduced to a predetermined threshold, for switching-on the first switch if the measured value is smaller than a threshold voltage.

摘要翻译： 栅极驱动电路驱动功率晶体管的控制端子，包括：用于电耦合控制端子的驱动端子，第一参考源，布置在第一参考源和控制端子之间的第一开关，开关控制电路和 测量电路。 第一个开关接通以关断功率晶体管。 开关控制电路在过渡期间将第一开关切断至完全关断状态。 测量电路响应于当流过驱动端子的放电电流已经减小到预定阈值时测量的控制端子处的电压值，向开关控制电路输出控制信号，以便接通第一开关，如果 测量值小于阈值电压。

公开(公告)号：US20150188426A1

公开(公告)日：2015-07-02

申请号：US14423721

申请日：2012-09-14

申请人： Thierry Sicard ,  Randall Gray ,  Philippe Perruchoud ,  John Pigott

发明人： Thierry Sicard ,  Randall Gray ,  Philippe Perruchoud ,  John Pigott

IPC分类号： H02M3/158 ,  H02M7/5387 ,  H02P27/08 ,  H02M3/156

CPC分类号： H02M3/158 ,  H02M1/32 ,  H02M1/34 ,  H02M3/1563 ,  H02M7/5387 ,  H02M7/53871 ,  H02M2001/0058 ,  H02P27/08 ,  H03K17/166 ,  H03K17/687 ,  Y02B70/1491

摘要： A power switching device connected or connectable between a power supply and a load is described. The device may have at least two different operating states, each operating state having a different level of said output voltage associated with it. The power switching device may comprise: a power terminal connected or connectable to said power supply; a load terminal connected or connectable to said load, for providing said output voltage; a power switch connected between said power terminal and said load terminal and arranged to be conductive in a first one of said operating states; a power conductor connected between said power terminal and said load terminal in at least one of said states, wherein an electrical current through said power conductor changes in response to said power switch being turned off, thereby causing self-induction in said power conductor; and a control unit arranged to control said power switch in real-time on the basis of a real-time level of said voltage across said power conductor so as to turn off said power switch in a continuous or stepwise or pulsed manner to prevent a voltage across said power conductor from exceeding a maximum allowed level. A three-phase bridge inverter and a method of operating a power switching device are also described.

摘要翻译： 描述了在电源和负载之间连接或可连接的电源开关装置。 该装置可以具有至少两个不同的操作状态，每个操作状态具有与其相关联的所述输出电压的不同电平。 电源开关装置可以包括：连接或可连接到所述电源的电源端子; 连接或连接到所述负载的负载端子，用于提供所述输出电压; 电源开关，其连接在所述电源端子和所述负载端子之间，并且布置成在所述工作状态的第一种状态下导通; 连接在所述电源端子和所述负载端子之间的电源导体中的至少一种状态，其中通过所述电源导体的电流响应于所述电源开关被切断而变化，从而在所述电力导体中引起自感应; 以及控制单元，其被布置成基于所述电力导体上的所述电压的实时电平实时地控制所述功率开关，以便以连续或分步或脉冲的方式关闭所述功率开关，以防止电压 跨越所述电力导体超过最大允许电平。 还描述了三相桥式逆变器和操作电力开关装置的方法。

公开(公告)号：US20150108936A1

公开(公告)日：2015-04-23

申请号：US14400086

申请日：2012-06-05

申请人： Thierry Sicard

发明人： Thierry Sicard

IPC分类号： H02P29/00

CPC分类号： H02P29/00 ,  H03K17/063 ,  H03K2217/0036 ,  H03K2217/0063 ,  H03K2217/0081

摘要： A charging circuit for at least one bootstrap charge storage element within an inertial load driver circuit is described, the at least one bootstrap charge storage element comprising a first node operably coupled to an output node of at least one switching element of the inertial load driver circuit. The charging circuit comprises at least one current source controllable to provide a current to a second node of the at least one bootstrap charge storage element, and at least one detection component arranged to receive at a first input thereof an indication of a voltage level at the output node of the at least one switching element of the inertial load driver circuit, detect when the voltage level at the output node of the switching element of the inertial load driver circuit is below a negative threshold voltage level, and control the at least one current source to provide a current to the second node of the at least one bootstrap charge storage element when the voltage level at the output node of the switching element of the inertial load driver circuit is below the negative threshold voltage level.

摘要翻译： 描述了用于惯性负载驱动器电路内的至少一个自举电荷存储元件的充电电路，所述至少一个自举电荷存储元件包括可操作地耦合到惯性负载驱动电路的至少一个开关元件的输出节点的第一节点 。 所述充电电路包括至少一个电流源，所述至少一个电流源可控制以向所述至少一个自举电荷存储元件的第二节点提供电流，以及至少一个检测组件，其布置成在其第一输入处接收所述至少一个自举电荷存储元件中的电压电平的指示 所述惯性负载驱动电路的所述至少一个开关元件的输出节点检测所述惯性负载驱动电路的所述开关元件的输出节点处的电压电平何时低于负阈值电压电平，并且控制所述至少一个电流 源，当惯性负载驱动电路的开关元件的输出节点处的电压电平低于负阈值电压电平时，向至少一个自举电荷存储元件的第二节点提供电流。

公开(公告)号：US08508282B2

公开(公告)日：2013-08-13

申请号：US12278484

申请日：2006-02-09

申请人： Thierry Sicard

发明人： Thierry Sicard

IPC分类号： H03K17/687

CPC分类号： H04L25/026

摘要： A LIN network comprises a transmit driver and a receive comparator for communicating low frequency signals on a single communication bus. The transmit driver is operably coupled to a high frequency detector to detect a high frequency component on the low frequency signal. In response to detecting the high frequency component the LIN network is arranged to perform one or both of the following: route the low frequency signal having a high frequency component through a low pass filter; and/or bypass the low frequency signal having a high frequency component from passing through an active device operably coupled between the transmit driver and the single communication bus.

摘要翻译： LIN网络包括用于在单个通信总线上传送低频信号的发送驱动器和接收比较器。 发射驱动器可操作地耦合到高频检测器以检测低频信号上的高频分量。 响应于检测到高频分量，LIN网络被布置成执行以下的一个或两个：通过低通滤波器路由具有高频分量的低频信号; 和/或绕过具有高频分量的低频信号通过可操作地耦合在发射驱动器和单个通信总线之间的有源器件。

公开(公告)号：US20120275070A1

公开(公告)日：2012-11-01

申请号：US13096320

申请日：2011-04-28

申请人： Thierry Sicard

发明人： Thierry Sicard

IPC分类号： H02H9/08

CPC分类号： H02H5/105 ,  H02H11/002

摘要： A control and protection system has a DC terminal (DCT), for connection to a DC bus (DCB), a load terminal (LT) for connection to a LOAD, a ground terminal (GT) for connection to an external ground bus (EGB), and an INPUT terminal for receiving ON/OFF commands. An internal ground bus (IGB) of the system is normally coupled to the EGB via the GT. But if a ground fault disconnects the GT from the EGB, the system automatically couples the IGB to the LT, thereby providing a synthetic ground that facilitates continued operation of the system and any peripheral circuits coupled between the DCB and the GT. Any peripheral circuit current passing through the system to the EGB is prevented from causing improper operation of the LOAD by automatically adjusting a series impedance that it passes through between the GT and the LT before reaching the LOAD and EGB.

摘要翻译： 控制和保护系统具有用于连接到DC总线（DCB）的DC端子（DCT），用于连接到LOAD的负载端子（LT），用于连接到外部接地总线的接地端子（GT） ）和用于接收ON / OFF命令的INPUT终端。 该系统的内部接地总线（IGB）通常通过GT耦合到EGB。 但如果接地故障将GT与EGB断开连接，则系统自动将IGB连接到LT，从而提供合成接地，便于系统和连接在DCB与GT之间的任何外围电路的连续运行。 通过系统到EGB的任何外围电路电流都可以通过在到达LOAD和EGB之前自动调节GT和LT之间通过的串联阻抗来防止LOAD的不正确的操作。