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    Electronic Control Systems and Methods
    2.
    发明公开
    Electronic Control Systems and Methods 有权
    电子控制系统和方法

    公开(公告)号：EP2073363A1

    公开(公告)日：2009-06-24

    申请号：EP08172234.0

    申请日：2002-07-03

    申请人： Lutron Electronics Company, Inc.

    发明人： Black, Richard L. ,  Johnson, Benjamin Aaron ,  Leichliter, Shawn L. ,  Wu, Chenming

    IPC分类号： H02M1/00

    CPC分类号： H05B39/08 ,  H02M1/32 ,  H02M5/293 ,  H02M7/538 ,  H02M2001/0012 ,  H03K3/00 ,  H03K17/00 ,  H03K17/0822 ,  H03K17/6874 ,  H03K2017/0806 ,  H05B39/048 ,  Y02B20/148 ,  Y10T307/766 ,  Y10T307/826 ,  Y10T307/865 ,  Y10T307/937 ,  Y10T307/944

    摘要： An apparatus in an electronic control system allows two or three wire operations. A power supply (150) can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such that timing information can be collected in both two and three wire installations. Both zero cross detectors (110) are monitored and are used to automatically configure the electronic control. Over voltage circuitry senses an over voltage condition across a MOSFET which is in the off state and turns the MOSFET on so that it desirably will not reach the avalanche region. Over current circuitry senses when the current through the MOSFETs has exceeded a predetermined current threshold and then turns the MOSFETs off so they do not exceed the MOSFETs' safe operating area (SOA) curve. Latching circuitry (120) is employed to keep the protection circuitry in effect even after a fault condition has cleared. Lockout circuitry (130) is used to prevent one protection circuit from tripping after the other circuit has already tripped from a fault condition. The protection circuitry output is desirably configured such that it can bypass and override the normal turn on and turn off impedance and act virtually directly on the gates of the MOSFETs. Preferably, the system has a high efficiency switching type power supply in parallel with a low frequency controllably conductive device.

    摘要翻译： 电子控制系统中的设备允许两线或三线操作。 电源（150）可以在两线和三线安装中为封闭电路供电。 使用两个独立的零交叉检测器，从而可以在两线和三线安装中收集定时信息。 两个零交叉检测器（110）都被监控并用于自动配置电子控制器。 过压电路检测处于关断状态的MOSFET两端的过压状况，并打开MOSFET以使其理想地不会到达雪崩区域。 过流电路检测通过MOSFET的电流是否超过预定的电流阈值，然后关断MOSFET，使其不超过MOSFET的安全工作区（SOA）曲线。 锁存电路（120）被用来保护保护电路，即使在故障状态已被清除之后。 锁定电路（130）用于防止一个保护电路在其他电路已经从故障状态跳闸后跳闸。 希望保护电路输出被配置为使其能够旁路并超越正常导通和关断阻抗并且实际上直接作用于MOSFET的栅极。 优选地，该系统具有与低频可控导电装置并联的高效开关型电源。