Digital 60-Hz to 400-Hz synchro converter

The design of a solid-state digital synchro converter has been established. Its steady-state and transient performance characteristics surpass those of a mechanically coupled 60-Hz to 400-Hz system, in which position errors and time lags degrade the performance. The digital design acts as an interface between a 60-Hz synchro transmitter and a 400-Hz synchro receiver. The heart of the design is the combination of a solid-state digital phase control circuit and two frequency conversion flip-flops.