Triple module redundant solid state power switch

Abstract

Herein presented are systems and methods for majority-vote, single fault tolerant switching of a switch using an electrical circuit that involves power transistors that carry relatively large electrical currents through the switch. The number of power transistors in the circuit of a majority-vote, single fault tolerant power switch may be reduced to four, thus saving circuit board space and producing relatively less heat. This may be done by avoiding the use of a third electrical branch that is generally used for triple module redundant power switches. In cases where a power transistor is relatively large and produces a relatively large amount of heat, reducing the number of this type of circuit component in a switch circuit may provide benefits such as reduced circuit board footprint and reduced heat generation.