Aspects of using optical commands  for galvanic isolation in industrial applications

Marian Blejan; Andrei Drumea; Radu Radoi; Gheorghe Jitianu; Cristina Marghescu

doi:10.1117/12.2646450

2 March 2023 Aspects of using optical commands for galvanic isolation in industrial applications

Marian Blejan, Andrei Drumea, Radu Radoi, Gheorghe Jitianu, Cristina Marghescu

Proceedings Volume 12493, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies XI; 1249317 (2023) https://doi.org/10.1117/12.2646450
Event: Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies 2022, 2022, Constanta, Romania

Abstract

Some industrial applications like electrical discharge machining involve large currents and voltages that can lead to severe EMC (electro-magnetic compatibility) problems. These environments are susceptible to large surges of electricity which may potentially damage the sensible modules/devices or may modify commands sent over communication lines. One solution to reduce the magnitude of these problems is the galvanic isolation, especially by using optical medium for sensible signals like switching and discharge commands. The paper focuses on practical aspects of implementing galvanic isolation using optocouplers and fiber optics between microcontroller-based control board and power board with switching devices, as well as measuring the delays on the signal chain.

Citation Download Citation

Marian Blejan, Andrei Drumea, Radu Radoi, Gheorghe Jitianu, and Cristina Marghescu "Aspects of using optical commands for galvanic isolation in industrial applications", Proc. SPIE 12493, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies XI, 1249317 (2 March 2023); https://doi.org/10.1117/12.2646450

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