Galvanic isolation of bidirectional digital serial bus

Galvanska izolacija je način električne izolacije funkcijski odvojenih cjelina nekog električnog sustava kako bi se spriječio značajan tok struje između tih cjelina. Energija ili informacija između njih se i dalje može prenositi na druge načine, pa tako postoji kapacitivni, induktivni, optički, akustički te mehanički prijenos. U ovom radu za galvansku izolaciju prijenosa podataka je izabran kapacitivni prijenos, zbog kompaktnosti i male potrošnje. Nakon detaljne analize funkcionalnosti sklopa napravljena je električka shema, koja se zatim realizirala na protoboardu. Nakon što su odstranjeni svi nedostatci koji su zanemareni prilikom analize, pločice su dizajnirane pomoću programskog alata Altium Designer, te konačno proizvedene i testirane.Galvanic isolation is a principle of isolating functional sections of electrical systems to prevent significant current flow. Energy or information can still be exchanged between the sections by other means, such as by the capacitance, induction or electromagnetic waves, or by the optical, acoustic or mechanical means. In this work, the capacitive transmission was chosen for the galvanic isolation of the data transmission because of a compact design and low-power consumption. The circuit was designed after a detailed analysis of the circuit’s functionality. In the end, the designed circuit was implemented on a breadboard. Finally, after all the issues that had been neglected during the analysis were resolved, printed circuit boards were designed using the Altium Designer tool, manufactured and tested