Abstract A dynamic transformer comprises input terminals for supplying an alternating-current control signal and an alternating current slotted-ring stator having two nondistributed exciting windings each of which comprises two equal diametrically opposed sections. Each winding section embraces a predetermined sector of the stator ring and the winding sections are equally spaced about the stator 360*/2n + OR - 1/2 of the sector. The windings are excited in phase from input terminals. The transformer also comprises two distributed output windings on the stator ring, each winding comprising two equal diametrically opposed sections and each winding section embracing the same sector of the stator as one of the exciting winding sections and each output winding section being divided into two equal adjacent portions connected in series opposition. The transformer has a rotor of low-loss magnetic material having eight salient poles, each of the poles having a width approximately one-half of the aforesaid stator sector width. The transformer is effective to develop in the output windings two-phase signals of an amplitude dependent upon the amplitude of the input control signal.
A dynamic transformer comprising: input terminals for supplying an alternating-current control signal; an alternating current slotted-ring stator having a plurality of n exciting windings, each embracing a predetermined sector of the stator ring and said windings being equally spaced by 360*/2n + OR - 1-nth of said sector; connections between said input terminals and said windings to excite them in phase; a plurality of n output windings on said stator ring, each embracing the same sector thereof as one of said exciting windings and divided into two equal adjacent portions connected in series opposition; and a rotor of low-loss magnetic material having m n salient poles, where m is an even integer, each of said poles having a width approximately one-half said predetermined stator sector, whereby there is developed in said output windings n-phase signals of m cycles per rotor revolution and of amplitude dependent upon the amplitude of the input control signal.
Claim 2
Dependent Claim
153 words
A dynamic transformer comprising: input terminals for supplying an alternating-current control signal; an alternating current slotted-ring stator having a plurality of n exciting windings, each embracing a predetermined sector of the stator ring and said windings being equally spaced by 360*/2n + OR - 1-nth of said sector; connections between said input terminals and said windings to excite them in phase; a plurality of n output windings on said stator ring, each embracing the same sector thereof as one of said exciting windings and divided into two equal adjacent portions connected in series opposition; and a rotor of low-loss magnetic material having m n salient poles, where m is an even integer, each of said poles having a width approximately one-half said predetermined stator sector, whereby there is developed in said output windings n-phase signals of m cycles per rotor revolution and of amplitude dependent upon the amplitude of the input control signal.
Claim 3
Dependent Claim
27 words
A dynamic transformer in accordance with claim 1 in which each of said exciting windings and each of said output windings comprise two equal diametrically opposed sections.
Claim 4
Dependent Claim
29 words
A dynamic transformer in accordance with claim 1 in which each of said exciting windings is an nondistributed winding and each of said output windings is a distributed winding.
Claim 5
Dependent Claim
19 words
A dynamic transformer in accordance with claim 1 in which the parameter n 2 and the parameter m 4.