| 摘要 |
A plurality of high-gain amplifiers equal in number to the number of inputs of a signal voter that selectively transmits the signal applied to one of its inputs, depending upon the relative input signal amplitudes is disclosed. The outputs of the amplifiers are connected to drive the respective inputs of the voter and the output of the voter is fed back to the inputs of the amplifiers in a sense to cause the output of the voter to track an external signal applied to the amplifier driving the transmitting input of the voter. Preferably, the amplifiers are of the differential type, the output of the voter being connected to the inverting input and redundant autopilot computers being coupled to the respective non-inverting inputs, and the output of the voter is coupled by an isolating operational amplifier to aircraft control surface actuators.
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