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Corresponding Author

Ramadan, Salah

Subject Area

Electrical Engineering

Article Type

Original Study

Abstract

This paper presents Pour new circuits to fire the single-phase or the three-phase converters. Each of these circuits is synchronized with the supply-voltage using an optic-configuration which utilizes the galvanic separation between the low-power and the high-power parts and bridges over the distortion of the supply voltage due to the commutation. The firing circuits are performed with minimum components which are generally available and used in many applications. These firing circuits are tested using different load types. The obtained results show that the invented circuits are stable and can be practically used to fire the constant frequency sources as well as the variable frequency sources. In addition, their cost is also low compared to the other used firing circuits.

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