Transition detection at input of integrated circuit device
    1.
    发明申请
    Transition detection at input of integrated circuit device 失效
    集成电路设备输入端的过渡检测

    公开(公告)号:US20050246555A1

    公开(公告)日:2005-11-03

    申请号:US10525579

    申请日:2003-07-22

    摘要: An integrated circuit has an input connection for connecting an external signal conductor that passes signals to execute functions in the device. The external signal conductor can pick up strong interfering signals with high frequency content, for example when the device is used in a car. To protect against unintended execution of functions the device contains a timer circuit comprising a capacitance and a current supplying circuit coupled to an integration node. A discharge diode is coupled between the input connection and the integration node, with a polarity such that the discharge diode, when in forward bias, is capable of draining current from the current supplying circuit. A detector is coupled to the integration node for generating a signal to be supplied to the integrated circuit device to respond to a signal transition on the conductor. The diode serves to reset integration on the integration node before the detector detects the transition in case of short pulses. By using a diode instead of a switching transistor the circuit is more robust against the effect of interfering pulses.

    摘要翻译: 集成电路具有用于连接外部信号导体的输入连接,该外部信号导体通过信号以执行装置中的功能。 外部信号导体可以拾取高频内容的强干扰信号,例如当该装置用于汽车时。 为了防止意外执行功能,该装置包含定时器电路,该定时器电路包括耦合到集成节点的电容和电流供应电路。 放电二极管耦合在输入连接和积分节点之间,其极性使得放电二极管在正向偏压时能够从电流供应电路引出电流。 检测器耦合到积分节点,用于产生要提供给集成电路器件的信号以响应导体上的信号转变。 在检测器检测到短脉冲情况下的转换之前,二极管用于复位积分节点上的积分。 通过使用二极管代替开关晶体管,该电路相对于干扰脉冲的影响更为鲁棒。

    Circuit arrangement, L[ocal] I[nterconnected] NE[twork] comprising such circuit arrangement as well as method for processing input signals of the LIN
    2.
    发明授权
    Circuit arrangement, L[ocal] I[nterconnected] NE[twork] comprising such circuit arrangement as well as method for processing input signals of the LIN 有权
    电路布置,包括这种电路布置的L [ocal] I [nterconnected] NE [twork]以及用于处理LIN的输入信号的方法

    公开(公告)号:US07884744B2

    公开(公告)日:2011-02-08

    申请号:US12439191

    申请日:2007-08-22

    IPC分类号: H03M1/00

    摘要: Circuit arrangement, LIN comprising such circuit arrangement as well as method for processing input signals of the LIN In order to further develop a circuit arrangement (100)—for processing at least one input signal (12) from at least one data bus (10) of at least one LIN and—for providing the data bus (10) with at least one output signal (18), as well as a corresponding operating method in such way that EMI performance and/or EMI performance of the LIN (300) is improved, it is proposed to provide—at least one analog-digital converting circuit (ADC) for converting the analog input signal (12) into at least one digital signal (14) to be processed, and—at least one digital-analog converting circuit (DAC) for converting the processed digital signal (16) into the analog output signal (18).

    摘要翻译: 电路布置LIN包括这种电路装置以及用于处理LIN的输入信号的方法,以便进一步开发用于从至少一个数据总线(10)处理至少一个输入信号(12)的电路装置(100) 至少一个LIN和用于向数据总线(10)提供至少一个输出信号(18)以及相应的操作方法,使得LIN(300)的EMI性能和/或EMI性能为 提出了提供至少一个用于将模拟输入信号(12)转换成待处理的至少一个数字信号(14)的模拟数字转换电路(ADC),以及至少一个数模转换 电路(DAC),用于将经处理的数字信号(16)转换成模拟输出信号(18)。

    Sleep Watchdog Circuit For Asynchronous Digital Circuits
    3.
    发明申请
    Sleep Watchdog Circuit For Asynchronous Digital Circuits 审中-公开
    异步数字电路的睡眠看门狗电路

    公开(公告)号:US20080215908A1

    公开(公告)日:2008-09-04

    申请号:US11914228

    申请日:2006-05-03

    IPC分类号: G06F1/04

    摘要: The sleep watchdog circuit for asynchronous circuits of the present invention contains clock means, counting means with multiple trigger input function and a digital supply. When the circuit is in the normal operation state, a periodic reset or activity signal is present that will reset the watchdog counter. As a result the clock means will keep on running, and the digital supply is operating in “normal” mode. When the circuit is put into the “sleep/standby” state, the “activity” signal becomes inactive, and if no wakeup events occur before the counter is finished the clock means will be put to a halt and the digital supply changes into a low power mode.

    摘要翻译: 本发明的异步电路的睡眠看门狗电路包含时钟装置,具有多个触发输入功能的计数装置和数字电源。 当电路处于正常工作状态时,会出现周期性复位或活动信号,复位看门狗计数器。 因此,时钟装置将继续运行,数字电源在“正常”模式下运行。 当电路进入“休眠/待机”状态时,“活动”信号变为无效,如果在计数器完成之前没有发生唤醒事件,则时钟装置将停止,数字电源变为低电平 电源模式。

    Mos switching circuit
    4.
    发明申请
    Mos switching circuit 有权
    Mos开关电路

    公开(公告)号:US20070159229A1

    公开(公告)日:2007-07-12

    申请号:US10586507

    申请日:2004-12-30

    IPC分类号: H03K17/687

    CPC分类号: H03K17/063 H03K17/6872

    摘要: An electronic circuit has a signal conductor (11), a power supply reference conductor (10) connected by a switching circuit. The switching circuit contains a PMOS transistor (17) and an NMOS transistor realized on a common substrate (100). The NMOS transistor (17) has a source coupled to the power supply reference conductor (10). The NMOS transistor (18) has a source coupled to the drain of the PMOS transistor (17), and a drain coupled to the signal conductor (11). A control circuit (13, 14, 15, 16) switches between an “on” state and an “off” state, in which the control circuit (13, 14, 15, 16) controls the gate source voltages of the first and second MOS transistor (17, 18) to make channels of these MOS transistors (17, 18) conductive and not to make the channels of these first and second transistors (17, 18) conductive respectively. Preferably a complementary switching circuit is also provided. The complementary switching circuit uses opposite polarity voltage differences, an NMOS transistor (27) coupled to a second power supply and a PMOS transistor (28) coupled to a signal conductor. The on resistances of the switching circuits are matched by matching the NMOS gate-source voltages, as well as the PMOS gate source voltages.

    摘要翻译: 电子电路具有由切换电路连接的信号导体(11),电源基准导体(10)。 开关电路包括PMOS晶体管(17)和在公共衬底(100)上实现的NMOS晶体管。 NMOS晶体管(17)具有耦合到电源参考导体(10)的源极。 NMOS晶体管(18)具有耦合到PMOS晶体管(17)的漏极的源极和耦合到信号导体(11)的漏极。 控制电路(13,14,15,16)在“开”状态和“关”状态之间切换,其中控制电路(13,14,15,16)控制第一和第二 MOS晶体管(17,18),以使这些MOS晶体管(17,18)的沟道导通,并且不使这些第一和第二晶体管(17,18)的沟道分别导通。 优选还提供互补开关电路。 互补开关电路使用相反的极性电压差,耦合到第二电源的NMOS晶体管(27)和耦合到信号导体的PMOS晶体管(28)。 通过匹配NMOS栅极 - 源极电压以及PMOS栅极源极电压来匹配开关电路的导通电阻。