公开(公告)号：US07672105B2

公开(公告)日：2010-03-02

申请号：US11467749

申请日：2006-08-28

Applicant: John M. Borkenhagen ,  William P. Hovis ,  Daniel P. Kolz ,  Jack A. Mandelman

Inventor： John M. Borkenhagen ,  William P. Hovis ,  Daniel P. Kolz ,  Jack A. Mandelman

IPC: H02H7/00

CPC classification number: H03K19/003 ,  Y10T307/766

Abstract: An apparatus for disabling a circuit when the circuit is in a first preselected condition includes a critical element that has an enable state and a disable state. The critical element is configured in relation to the circuit such that the circuit cannot operate normally if the critical element is in the disable state. A trigger generates a state signal that causes the critical element to enter the disable state when a comparison of a current condition to a stored value indicates that the circuit is in the first preselected condition. In a method of controlling operation of a circuit, a current condition is sensed. Whether the current condition corresponds to a stored value is determined. If the current condition corresponds to the stored value, then a critical element is caused to enter a disable state so that the circuit is prevented from operating normally.

Abstract translation: 当电路处于第一预选状态时禁止电路的装置包括具有使能状态和禁止状态的关键元件。 关键元件被配置为相对于电路，使得如果关键元件处于禁用状态，则电路不能正常工作。 当当前条件与存储值的比较指示电路处于第一预选状态时，触发器产生状态信号，该状态信号使关键元件进入禁用状态。 在控制电路的操作的方法中，感测到电流状态。 确定当前条件是否对应于存储值。 如果当前条件对应于存储的值，则使关键元件进入禁用状态，从而防止电路正常工作。