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Proceedings Paper

A Single Chip PWM Generator For Tracking Photovoltaic System
Author(s): V. Dutta
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Paper Abstract

A single chip INTEL 8748 based Pulse Width Modulation system has been developed. Six PWM signals for three phase application are generated on PORT 1 by outputting DATAWORDs after a delay determined by DELAY-WORDs. Two different sets of DATAWORDs are used for forward and reverse motions. The PWM signals have been used to run two ac synchronous motors to control a tracking photovoltaic system. The motion of the tracker is decided by Input signals on BUS PORT and PORT 2 (UPPER). Bit 6 and 7 of PORT 1 and lower nibble of PORT 2 are used as gate signals for tri-state buffers to control two or more motors from one set of PWM signals.

Paper Details

Date Published: 19 October 1987
PDF: 5 pages
Proc. SPIE 0854, IECON '87: Motor Control and Power Electronics, (19 October 1987); doi: 10.1117/12.942980
Show Author Affiliations
V. Dutta, Indian Institute of Technology (India)

Published in SPIE Proceedings Vol. 0854:
IECON '87: Motor Control and Power Electronics
Martin F. Schlecht, Editor(s)

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