He invented the transformer with his colleagues (Miksa Déri and Ottó Bláthy) at the famous Hungarian manufacturing company Ganz Works and he contributed significantly with his works also to other AC technologies.

Zipernowsky, with Ottó Bláthy and Miksa Déri, all of Ganz and Company, were researching ways of increasing efficiency of electrical power transmission.

Nikola Tesla then proposed the use of step-up transformers, which would output higher voltage than they received.

This principle is widely used for power transmission over long distances all over the world.

¨ This article about a Hungarian engineer, inventor or industrial designer is a stub.