COMBINED REDUNDANCY DEVICE Russian patent published in 2008 - IPC G06F11/18 H05K10/00 

FIELD: electricity.

SUBSTANCE: device is built on the basis of majority device, but in contrast to it signals of two connected normally operating channels are majorised as well as one disconnected working channel that stays in cold reserve. In case of failure in one of working channels, the third working channel is automatically switched on, the one that stayed in cold reserve, and signals of these three working channels, one of which failed, are majorised, thus forming output signal of reserved system. In case of failure in another or in both working channels, the third working channel also automatically switches on, the one that stayed in cold reserve, and signals of these three working channels, one or two of which failed, are duplicated, thus forming output signal of reserved system from the signal of the third reserve channel that was disconnected earlier.

EFFECT: reduction of electric power consumption and higher reliability of reserved system.

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