DIGITAL CONTROL CIRCUIT DESIGN OF PWM INVERTERS | ||||
| International Conference on Aerospace Sciences and Aviation Technology | ||||
| Article 57, Volume 4, ASAT CONFLENCE 14-16 May 1991 , CAIRO, May 1991, Page 647-658 PDF (2.4 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asat.1991.25850 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M. Ali Gomaa1; R. Mostafa2; M. Abd El Haliem A.3 | ||||
| 1Diploma Engineer, EAF. | ||||
| 2Ass. Prof., M. T. C. | ||||
| 3Prof. El-Azhar University. | ||||
| Abstract | ||||
| In this paper, the hardware and the software design and also the realization of a PWM transistor inverter control circuit are given. A mathematical analysis for computing the switching angles is performed for both a single-phase and a three-phase inverters. The pre-calculated switching patterns which eliminate low order harmonics of the inverter output are stored in the EPROM. A simple digital control circuit associated with an EPROM is used to generate the control signals for the switching transistors of the inverter. The description of the designed digital control circuit for single - and three-phase inverter are included. Output waveforms for the designed circuit and the PWM inverter circuits are presented. | ||||
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