Fail-safe static switch

摘要

A fail-safe static switch for controlling the supply of redundant electrical power to critical loads. A first control path has a signal analyzer configured to monitor predetermined characteristics of a power supply voltage. The signal analyzer generates a first failure signal when the characteristics of the power supply voltage monitored by the signal analyzer are not in compliance with predetermined metrics. A second control path has a first electrical circuit configured to monitor predetermined characteristics of the power supply voltage. The first electrical circuit generates a second failure signal when the characteristics of the power supply voltage monitored by the first electrical circuit are not in compliance with predetermined metrics. The fail-safe static switch further includes an output providing an electrical output signal. The electrical output signal changes state when at least one of the first failure signal and the second failure signal are generated.

主权项

1. A fail-safe static switch, comprising:
a first control path having a signal analyzer forming a first electrical circuit, the signal analyzer being configured to monitor predetermined characteristics of a power supply voltage, the signal analyzer generating a first failure signal when the characteristics of the power supply voltage monitored by the signal analyzer are not in compliance with predetermined metrics; a second control path having a second electrical circuit, the second electrical circuit being configured to monitor predetermined characteristics of the power supply voltage, the second electrical circuit generating a second failure signal when the characteristics of the power supply voltage monitored by the second electrical circuit are not in compliance with predetermined metrics; and an output providing an electrical output signal, wherein the electrical output signal changes state when at least one of the first failure signal and the second failure signal are generated.