Patent ID: 7123156
Filing Date: 2006-10-17
Classification: G08B

Abstract:
1. A circuit in which a current interrupter is connected to interrupt current to a load, comprising: an indicator providing an indication of whether current is coupled to the load by the current interrupter; a passive network connected between the current interrupter and the indicator, said passive network biasing said indicator to provide a first indication of when current is flowing to the load, and a second indication of when current is interrupted by the current interrupter, in an AC or DC circuit, for positive or negative ground; wherein the current interrupter and the load are connected between a first node and a second node, and a third node is defined between the current interrupter and the load, and said passive network comprises: a first resistor connected between the first node and a fourth node; a second resistor connected between said fourth node and the second node; a third resistor connected between the second node and a fifth node; a rectifier connected between the third node and said fifth node for limiting current flow to one direction between the third and said fifth node; said indicator connected between the third node and said fifth node; and wherein said first, second and third resistors are sized and said rectifier is aligned for current to flow in a first direction through said indicator when the current is passing through the current interrupter and in a second direction when the current interrupter is interrupting current flow to the load.