Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1992-03-18
1993-12-21
Wysocki, Jonathan
Electricity: motive power systems
Induction motor systems
Primary circuit control
318811, 363 41, H02P 700
Patent
active
052724301
ABSTRACT:
A system provides parallel sequences of control signals, each control signal having a determined duration (T), constant within a sequence, and a predetermined duty cycle, specific to the control signal. A microcontroller (20) includes a central processing unit (21) and a non-volatile memory (23) arranged in blocks (Bij) of lines and columns. Each line corresponds to a word containing at least as many bits as parallel sequences. A Direct Memory Access (DMA) controller (24) and an associated counter (25) sequentially address each word of a block at a fixed frequency and supply bits of this word in parallel to produce the parallel control signals.
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patent: 4447786 (1984-05-01), Saar et al.
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"An On-Line PC-Based Converter PWM Modulator", Vincenti et al., 1988 IEEE IAS Annual Meeting Conf. Rec. Oct. 2, 1988, pp. 895-902.
Bourgeois Jean-Marie
Maurice Bruno
Saby Bernard
SGS-Thomson Microelectronics S.A.
Wysocki Jonathan
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