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    • 11. 发明申请
    • A CIRCUIT PROTECTION ARRANGEMENT
    • 电路保护装置
    • WO2018069123A1
    • 2018-04-19
    • PCT/EP2017/075267
    • 2017-10-04
    • AUTOLIV DEVELOPMENT ABFOUILLEUL, AntoineJEANNARD, Jean-Francois
    • FOUILLEUL, AntoineJEANNARD, Jean-Francois
    • H02H3/24H02H3/247
    • H02H3/24H02H3/243H02H3/247H02H11/003
    • A circuit protection arrangement (11) for use in a vehicle, the arrangement (11) comprising: an input terminal (12) configured to be connected to a power supply (14) to receive a power supply voltage; an output terminal (15) configured to be connected to an electronic circuit (16) to provide an output voltage to the electronic circuit (16); a controllable switch (19) which is connected in series between the input and output terminals (12, 15); a control module (20) which is coupled to controllable switch (19); a voltage buffer module (21) coupled to the input terminal (12), the voltage buffer module (21) being configured to store electrical energy and to provide a buffer output voltage for a predetermined length of time, the buffer output voltage being substantially equal to the power supply voltage; and a detection module (27) coupled to the input terminal (12), the voltage buffer module (21) and the control module (20), the detection module (27) being configured to detect if the power supply voltage is substantially equal to the buffer output voltage and to provide: a first control signal to the control module (20) if the power supply voltage is substantially equal to the buffer output voltage, and a second control signal to the control module (20) if the power supply voltage is lower than the buffer output voltage, wherein the control module (20) is configured to control the controllable switch (19) to: switch on in response to the first control signal so that the protection arrangement (11) provides a voltage at the output terminal (15) which is substantially equal to the power supply voltage, and switch off in response to the second control signal so that the protection arrangement (11) does not provide a voltage at the output terminal (15) to protect an electronic circuit (16) connected to the output terminal (15).
    • 一种用于车辆中的电路保护装置(11),所述装置(11)包括:输入端子(12),其被配置为连接到电源(14)以接收电源 电压; 输出端子(15),被配置为连接到电子电路(16)以向所述电子电路(16)提供输出电压; 一个可控开关(19),它串联在输入和输出端(12,15)之间; 控制模块(20),其连接到可控开关(19); 耦合到所述输入端子(12)的电压缓冲模块(21),所述电压缓冲模块(21)被配置为存储电能并提供预定时间长度的缓冲输出电压,所述缓冲输出电压基本相等 到电源电压; 和耦合到所述输入端子(12),所述电压缓冲模块(21)和所述控制模块(20)的检测模块(27),所述检测模块(27)被配置为检测所述电源电压是否基本等于 所述缓冲器输出电压并且如果所述电源电压基本上等于所述缓冲器输出电压则向所述控制模块(20)提供第一控制信号,并且如果所述电源电压 低于所述缓冲器输出电压,其中所述控制模块(20)被配置为控制所述可控开关(19)以:响应于所述第一控制信号而接通,使得所述保护装置(11)在所述输出端处提供电压 (15),其基本上等于电源电压,并且响应于第二控制信号而断开,使得保护装置(11)不在输出端子(15)处提供电压以保护电子电路 16 )连接到输出终端(15)。
    • 17. 发明申请
    • MICROCONTROLLER WITH BROWN-OUT DETECTION
    • 具有欠压检测功能的微控制器
    • WO1996021158A1
    • 1996-07-11
    • PCT/US1996000011
    • 1996-01-05
    • MICROCHIP TECHNOLOGY INCORPORATED
    • MICROCHIP TECHNOLOGY INCORPORATEDYACH, Randy, L.
    • G01R19/00
    • H02H3/247
    • A microcontroller device is fabricated in an integrated circuit chip to control an external system with which the device is to be installed in circuit. The device has a CPU (10), a program memory (12) for storing program instructions to be implemented by the CPU, a data memory (13) for storing data including data pertaining to parameters of the external system to be controlled by operation of the CPU according to the instruction, and various peripherals. A brown-out protection circuit monitors (16) the level of the supply voltage for the IC chip relative to a ground reference level, to reset the device as protection against its malfunction in response to reduction of an arithmetic difference between the supply voltage level and the ground reference level to a value less than a predetermined threshold operating voltage level.
    • 微控制器装置制造在集成电路芯片中以控制装置将被安装在电路中的外部系统。 该装置具有CPU(10),用于存储由CPU实现的程序指令的程序存储器(12),用于存储数据的数据存储器(13),该数据存储器包括与通过操作控制的外部系统的参数有关的数据 CPU根据指令,以及各种外设。 欠压保护电路监测(16)IC芯片相对于接地参考电平的电源电平,以便将器件复位为防止其故障,以减少电源电压电平和 将接地参考电平设置为小于预定阈值工作电压电平的值。