公开(公告)号：US08203822B2

公开(公告)日：2012-06-19

申请号：US12598307

申请日：2007-05-11

申请人： Erwan Hemon ,  Philippe Lance

发明人： Erwan Hemon ,  Philippe Lance

IPC分类号： F23Q3/00

CPC分类号： B60R21/017 ,  B60R2021/01177

摘要： A driving circuit for generating a required firing current for a safety device comprising an arrangement of a first transistor (M2) connected in series with a second transistor (M3); and a power control transistor (M1) connected in series with the first transistor; characterised in that the first and second transistors operate in fully switched on mode (Rds(on)) and the required firing current (I(squib)) is generated by means of varying the voltage (Vc) across the gate source of power control transistor and the first and second transistors in a predetermined manner.

摘要翻译： 一种用于产生安全装置所需的点火电流的驱动电路，包括与第二晶体管（M3）串联连接的第一晶体管（M2）的布置; 和与第一晶体管串联连接的功率控制晶体管（M1）; 其特征在于，第一和第二晶体管以完全接通模式（Rds（on））工作，并且通过改变功率控制晶体管的栅极源上的电压（Vc）来产生所需的点火电流（I（点火）） 以及第一和第二晶体管。

公开(公告)号：US20080200128A1

公开(公告)日：2008-08-21

申请号：US11917888

申请日：2005-06-17

申请人： Erwan Hemon

发明人： Erwan Hemon

IPC分类号： H04B3/00 ,  H03F3/45

CPC分类号： H04L25/0274 ,  H04L25/0282

摘要： A communication system comprises a twisted pair communication link operably coupled to at least two driver stages for providing at least two independent input signals on the twisted pair communication link. The at least two independent input signals on the twisted pair communication link are summed and input to a comparator arranged to compare the summed signal to a reference value. The output of the comparator is input to the at least two driver stages. The outputs from the at least two driver stages are summed and fed back and summed with one or more of the independent input signals.In this manner, adverse effects due to non-ideal symmetry between components in a twisted pair communication link, such as a Controller Area Network system, are reduced.

摘要翻译： 通信系统包括可操作地耦合到至少两个驱动器级的双绞线通信链路，用于在双绞线通信链路上提供至少两个独立的输入信号。 将双绞线通信链路上的至少两个独立输入信号相加并输入到比较器，该比较器将求和的信号与参考值进行比较。 比较器的输出被输入至少两个驱动级。 来自至少两个驱动器级的输出被相加并反馈并与一个或多个独立输入信号相加。 以这种方式，减少了诸如控制器局域网系统之类的双绞线通信链路中的组件之间非理想对称的不良影响。

公开(公告)号：US09176179B2

公开(公告)日：2015-11-03

申请号：US14112042

申请日：2011-04-22

申请人： Erwan Hemon ,  Hamada Ahmed ,  Pierre Turpin

发明人： Erwan Hemon ,  Hamada Ahmed ,  Pierre Turpin

IPC分类号： G01R31/12 ,  G01R27/26 ,  G01R31/02 ,  B60R21/017 ,  G01R31/01 ,  G01R31/00

CPC分类号： G01R31/028 ,  B60R21/0173 ,  G01R31/006 ,  G01R31/016

摘要： A method of measuring a capacitor value comprises the steps of loading the capacitor up to a given voltage value; obtaining a first measure of a time for discharging the capacitor by a fixed voltage drop, the discharge of the capacitor being caused by a first current; reloading the capacitor up to the given voltage value; obtaining a second measure of a time for discharging the capacitor by the fixed voltage drop, the discharge of the capacitor being caused by the first current and by a second current of known value added to said first current; and determining the capacitor value from the difference between the first measure and the second measure, based on the given voltage drop or the given time, respectively, and based further on the known value of the given second current.

摘要翻译： 测量电容器值的方法包括将电容器加载到给定电压值的步骤; 通过固定的电压降获得用于对电容器放电的时间的第一测量值，电容器的放电由第一电流引起; 将电容器重新加载到给定的电压值; 获得通过固定电压降使电容器放电的时间的第二测量值，由第一电流引起的电容器的放电和加到所述第一电流的已知值的第二电流; 以及基于给定的电压降或给定时间分别根据第一测量和第二测量之间的差来确定电容器值，并进一步基于给定的第二电流的已知值。

公开(公告)号：US20140043034A1

公开(公告)日：2014-02-13

申请号：US14112042

申请日：2011-04-22

申请人： Erwan Hemon ,  Hamada Ahmed ,  Pierre Turpin

发明人： Erwan Hemon ,  Hamada Ahmed ,  Pierre Turpin

IPC分类号： G01R31/02

CPC分类号： G01R31/028 ,  B60R21/0173 ,  G01R31/006 ,  G01R31/016

摘要： A method of measuring a capacitor value comprises the steps of loading the capacitor up to a given voltage value; obtaining a first measure of a time for discharging the capacitor by a fixed voltage drop, the discharge of the capacitor being caused by a first current; reloading the capacitor up to the given voltage value; obtaining a second measure of a time for discharging the capacitor by the fixed voltage drop, the discharge of the capacitor being caused by the first current and by a second current of known value added to said first current; and determining the capacitor value from the difference between the first measure and the second measure, based on the given voltage drop or the given time, respectively, and based further on the known value of the given second current.

摘要翻译： 测量电容器值的方法包括将电容器加载到给定电压值的步骤; 通过固定的电压降获得用于对电容器放电的时间的第一测量值，电容器的放电由第一电流引起; 将电容器重新加载到给定的电压值; 获得通过固定电压降使电容器放电的时间的第二测量值，由第一电流引起的电容器的放电和加到所述第一电流的已知值的第二电流; 以及基于给定的电压降或给定时间分别根据第一测量和第二测量之间的差来确定电容器值，并进一步基于给定的第二电流的已知值。

公开(公告)号：US20090115489A1

公开(公告)日：2009-05-07

申请号：US11996241

申请日：2005-07-18

申请人： Erwan Hemon ,  Thierry Laplagne ,  Pierre Turpin

发明人： Erwan Hemon ,  Thierry Laplagne ,  Pierre Turpin

IPC分类号： H03K17/16

CPC分类号： H03K17/0822

摘要： A switch arrangement for providing a drive signal at an output comprises a drive switch coupled to the output of the switch arrangement and a regulating element coupled in series between the drive switch and a power supply input of the switch arrangement. The drive switch is operable to provide the drive signal at the output. The switch arrangement is characterised in that the regulating element is coupled in a cascode arrangement with the drive switch such that in operation the regulating element limits the voltage drop across the drive switch to a predetermined level.

摘要翻译： 用于在输出处提供驱动信号的开关装置包括耦合到开关装置的输出的驱动开关和串联耦合在驱动开关和开关装置的电源输入端之间的调节元件。 驱动开关可操作以在输出端提供驱动信号。 开关装置的特征在于，调节元件与驱动开关以共源共栅结构耦合，使得在操作中，调节元件将驱动开关两端的电压降限制到预定水平。

公开(公告)号：US20080221759A1

公开(公告)日：2008-09-11

申请号：US12117215

申请日：2008-05-08

申请人： Erwan Hemon ,  Thierry Laplagne ,  Pierre Turpin

发明人： Erwan Hemon ,  Thierry Laplagne ,  Pierre Turpin

IPC分类号： G06F17/00

CPC分类号： B60R21/017

摘要： A drive arrangement for activating a car safety device activation element, such as an air bag, comprises a drive circuit, which is coupled to the car safety device activation element. The drive circuit generates an activation signal which activates the car safety device. The arrangement includes a power supply transistor which is coupled in series with a power supply input of the drive circuit and an energy reservoir such as a capacitor. The arrangement further comprises control means which controls the supply voltage to the drive circuit by controlling the power supply transistor to operate in an active region to provide a voltage drop during activation of the car safety device activation element. Hence, a significant voltage drop and thus energy dissipation may be moved from the drive circuit to the power supply transistor. The drive circuit may therefore be reduced in size and the power supply transistor may be implemented in a cheap technology suitable for energy dissipation.

摘要翻译： 用于启动汽车安全装置启动元件（例如气囊）的驱动装置包括联接到汽车安全装置启动元件的驱动电路。 驱动电路产生激活汽车安全装置的启动信号。 该装置包括与驱动电路的电源输入端串联的电源晶体管和诸如电容器的能量存储器。 该装置还包括控制装置，控制装置通过控制电源晶体管在有源区域中操作来控制驱动电路的电源电压，以在启动汽车安全装置启动元件期间提供电压降。 因此，可以从驱动电路向电源晶体管移动显着的电压降，从而消耗能量。 因此，驱动电路的尺寸可以减小，并且电源晶体管可以以适于能量耗散的廉价技术来实现。

公开(公告)号：US20140277949A1

公开(公告)日：2014-09-18

申请号：US14204069

申请日：2014-03-11

申请人： Pierre Turpin ,  Erwan Hemon ,  Ahmed Hamada

发明人： Masahiko Ito ,  Pierre Turpin ,  Erwan Hemon ,  Ahmed Hamada

IPC分类号： B60R21/26

CPC分类号： B60R21/26 ,  B60R21/015 ,  B60R21/01524 ,  B60R21/017

摘要： An airbag apparatus connected with a battery includes activation circuits each of which has a squib and a high-side switching element, a safing switching element connected between the battery and the activation circuits, a safing switch control circuit controlling the safing switching element to provide a target voltage to the activation circuits, a terminal voltage acquiring circuit that acquires a terminal voltage of each squib, and a target voltage setting circuit that sets the target voltage. When a maximum-terminal voltage is lower than a reference voltage, the target voltage setting circuit sets the target voltage to be equal to the reference voltage. When the maximum-terminal voltage is higher than the reference voltage, the target voltage setting circuit sets the target voltage to correspond to the maximum-terminal voltage so that a reverse current is avoided in the high-side switching element.

摘要翻译： 与电池连接的气囊装置包括各自具有爆管和高侧开关元件的激活电路，连接在电池和激活电路之间的安全开关元件，控制安全开关元件以提供安全开关元件的安全开关控制电路 激活电路的目标电压，获取每个点火线的端子电压的端子电压获取电路以及设定目标电压的目标电压设定电路。 当最大端电压低于参考电压时，目标电压设定电路将目标电压设定为等于参考电压。 当最大端电压高于参考电压时，目标电压设定电路将目标电压设定为与最大端电压相对应，使得在高侧开关元件中避免了反向电流。

公开(公告)号：US08456783B2

公开(公告)日：2013-06-04

申请号：US12597006

申请日：2007-04-27

申请人： Patrice Besse ,  Erwan Hemon ,  Philippe Lance

发明人： Patrice Besse ,  Erwan Hemon ,  Philippe Lance

IPC分类号： H02H9/00

CPC分类号： H01L27/0251

摘要： An integrated circuit comprises electro-static discharge (ESD) protection circuitry arranged to provide ESD protection to one or more external connector(s) of the integrated circuit. The ESD protection circuitry comprises at least one ESD protection component coupled to the one or more external connectors for providing ESD protection thereto. The ESD protection circuitry further comprises an ESD connector coupled to the one or more external connector(s), arranged to couple supplementary ESD protection to the one or more external connector(s).

摘要翻译： 集成电路包括静电放电（ESD）保护电路，其布置成向集成电路的一个或多个外部连接器提供ESD保护。 ESD保护电路包括耦合到一个或多个外部连接器的至少一个ESD保护部件，用于向其提供ESD保护。 ESD保护电路还包括耦合到所述一个或多个外部连接器的ESD连接器，其布置成将辅助ESD保护耦合到所述一个或多个外部连接器。

公开(公告)号：US07940513B2

公开(公告)日：2011-05-10

申请号：US11996241

申请日：2005-07-18

申请人： Erwan Hemon ,  Thierry Laplagne ,  Pierre Turpin

发明人： Erwan Hemon ,  Thierry Laplagne ,  Pierre Turpin

IPC分类号： F23Q5/00

CPC分类号： H03K17/0822

摘要： A switch arrangement for providing a drive signal at an output comprises a drive switch coupled to the output of the switch arrangement and a regulating element coupled in series between the drive switch and a power supply input of the switch arrangement. The drive switch is operable to provide the drive signal at the output. The switch arrangement is characterized in that the regulating element is coupled in a cascode arrangement with the drive switch such that in operation the regulating element limits the voltage drop across the drive switch to a predetermined level.

摘要翻译： 用于在输出处提供驱动信号的开关装置包括耦合到开关装置的输出的驱动开关和串联耦合在驱动开关和开关装置的电源输入端之间的调节元件。 驱动开关可操作以在输出端提供驱动信号。 开关装置的特征在于，调节元件与驱动开关以共源共栅结构耦合，使得在操作中，调节元件将驱动开关两端的电压降限制到预定水平。

公开(公告)号：US20100244714A1

公开(公告)日：2010-09-30

申请号：US12742103

申请日：2007-11-13

申请人： Kamel Abouda ,  Murielle Delage ,  Erwan Hemon ,  Pierre Turpin

发明人： Kamel Abouda ,  Murielle Delage ,  Erwan Hemon ,  Pierre Turpin

IPC分类号： H05B37/02 ,  H03H11/26

CPC分类号： H03K17/166 ,  H03K17/145 ,  H03K2217/0027

摘要： A circuit for improving the control of a change in state of a signal in an electronic device between a first state and a second state, wherein a first change in state occurs when the state changes from the second state to the first state and a second change in state occurs when the state changes from the first state to the second state and wherein the first and second changes in state have associated therewith a first and a second time delay over which the or each change in state occurs, characterized in that said circuit comprises a determining unit for measuring the first time delay and a calculator for calculating a common delay to replace one or more of the first and second delays to thereby improve the control of the change in state of the signal

摘要翻译： 一种用于改善在第一状态和第二状态之间对电子设备中的信号状态变化的控制的电路，其中当状态从第二状态变为第一状态时发生第一状态变化，并且第二变化 当状态从第一状态改变到第二状态时，发生状态，并且其中第一和第二状态改变已经与第一和第二时间延迟相关联，其中状态或每种状态发生变化，其特征在于，所述电路包括 用于测量第一时间延迟的确定单元和用于计算用于替换第一和第二延迟中的一个或多个的公共延迟的计算器，从而改善信号状态变化的控制