| 摘要 |
A digital controller for a converter comprises a memory for storing digital representations of the switching patterns for operating the converter to produce a predetermined segment of each one of a plurality of waveforms, respectively, the memory being operable for repetitively outputting at least a selected one, or concurrently one per phase, of the switching patterns, the waveforms being divided into equal angled zones, a respective predetermined segment when oriented in phase and made of appropriate polarity, substantially approximating the portion of its associated waveform within any of the zones of this waveform; and a decoder receptive of the switching patterns from the memory, for selectively gating the digital signals thereof onto a plurality of control lines, in an iterative manner, for operating the converter to produce a desired waveform or polyphase related waveforms, with the segments of each zone thereof properly oriented in phase and polarity. |
