公开(公告)号：US4900951A

公开(公告)日：1990-02-13

申请号：US273372

申请日：1988-11-18

申请人： Tadashi Saito ,  Ichiro Sakamoto ,  Shizuo Ando ,  Souhei Yamakawa

发明人： Tadashi Saito ,  Ichiro Sakamoto ,  Shizuo Ando ,  Souhei Yamakawa

IPC分类号： G06F1/30 ,  G06F11/00 ,  H02H7/20 ,  H03K5/19 ,  H03K17/08 ,  H03K17/28 ,  H03K19/0948

CPC分类号： H02H7/20

摘要： A latch-up restoration circuit for an electronic circuit generating a signal having a predetermined operating frequency such as a microcomputer, comprises a latch-up sensing device sensing a state that the frequency of the signal generated by the electronic circuit is on the outside of a predetermined frequency range and generating a latch-up detection signal, and a power supply inhibiting device inhibiting supply of a power current to the electronic circuit for a predetermined time period in response to the latch-up detection signal. The electronic circuit is automatically resumed to an initial state and the latch-up phenomenon is removed when the supply of the power current is restarted.

摘要翻译： 一种用于产生具有预定工作频率的信号的电子电路的闭锁恢复电路，例如微型计算机，包括一个闩锁检测装置，用于检测由电子电路产生的信号的频率在一个 并且产生闩锁检测信号;以及电源禁止装置，其响应于所述闩锁检测信号，在预定时间段内禁止向所述电子电路供应电力电流。 电子电路自动恢复到初始状态，并且当重新启动电源电流时，消除闩锁现象。