| 摘要 |
A pulsating signal generator for the production, in particular, of 3 systems of triphase voltages, in which the resulting pseudo-sinusoidal voltages of the 3 systems are modulated in amplitude at predetermined, fixed or variable pulsation epsilon , and staggered in phase by 2 pi /3 radians among themselves. The generators of the double homopolar rotating machine type comprise a magnetic stator circuit of double homopolar alternator construction provided with two armatures, each including a system of triphase windings with 3 independent circuits per phase, each circuit of each phase of the first armature being connected in series with one of the circuits of a phase of the second armature. A rotor with a rotating magnet divided into two half-rotors by an airgap 23 is disposed on a shaft concentric with the armatures and an excitation induction coil, concentric to the axis of the rotor provides magnetic flux through the armatures. A driving means drives the half-rotors at speeds mu 1, and mu 2 different one from the other and which are such that the half-difference of the speeds ( mu 1- mu 2/2) is equal to epsilon . The generation of triphase pseudo-sinusoidal voltages of a given pulsation epsilon from machines rotating at a speed much higher than epsilon is thus realized.
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