Vital voltage regulator and phase shift circuit arrangement

Details Vital voltage regulator and phase shift circuit arrangement Vital voltage regulator and phase shift circuit arrangement

G - Physics

05

F

323/20

G05F 1/70 (2006.01) G05F 3/06 (2006.01)

Patent

CA 1133057

(Case No. 7008) ABSTRACT OF THE DISCLOSURE The primary winding of a saturable transformer is coupled to an alternating current source by a series tuned filter network. The transformer secondary winding is coupled to a load network by a second series filter tuned to the source frequency to block harmonics generated by the satura- tion limiting action of the transformer, which occurs below the normal voltage level of the source and regulates the output voltage supplied to the load within predetermined limits over the source operating voltage range. The first filter is tuned at a predetermined level above the source frequency to cooperate with the equivalent inductance of the unsaturated transformer and output network to hold the secon- dary output in phase with the input signal at low levels of the source voltage. The first filter further cooperates with the reduced equivalent inductance of the saturated transformer and output network to change the effective frequency tuning to shift the phase of the secondary output with respect to the input signal at normal source voltage levels.

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