| 摘要 |
A system for providing a regulated low voltage DC source and a regulated higher voltage AC source at a preselected frequency, such as 60 Hz. from the same windings of an alternator rotated at variable speeds including a phase WYE connected engine driven alternator providing three output posts and a neutral post and having a field circuit, a half-wave rectifier connected to each of the output posts of the alternator providing a low voltage DC source, a cycloconverter having a three phase input connected to the posts of the alternator and providing a single phase output at the preselected frequency, a resonating transformer having the primary connected to the output of the cycloconverter and having a capacitor in the secondary providing a resonant frequency at the desired AC frequency, such as 60 Hz., and a clock circuit providing an AC control voltage at a preselected frequency, such as 60 Hz., the clock being connected to the cycloconverter for control of the cycloconverter to provide the selected input frequency to the resonating transformer. The secondary of the resonating transformer providing the AC voltage source at the preselected frequency and a regulator circuit controlling the field current of the AC generator for regulating the AC voltage output of the resonating transformer.
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