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Semiconductor component reduction in AC/DC converters with transmission lines

S. Sander ; Andreas Karvonen (Institutionen för energi och miljö, Elteknik)
2013 15th European Conference on Power Electronics and Applications, EPE 2013 p. Article number 6634435. (2013)
[Konferensbidrag, refereegranskat]

By replacing the power inductor in a traditional converter topology with a transmission line, new functions such as inverting and non-inverting output voltage polarity from the same converter will arise. In this paper, the proposed technology was investigated in an AC/DC converter where the traditional topology (diode bridge and secondary DC/DC converter) was replaced with a single converter with a transmission line as an energy storage device. The transmission line was realized with lumped elements and the major benefit was found to be a reduced number of semiconductors; the same functionality could be achieved with only half the original amount. Due to practical reasons, the operating principle was verified in a DC/AC-circuit which was simulated in LTspice. The simulations showed that a switch mode converter with transmission line is possible to use for the suggested application with a power stage efficiency of ηPwSt=87%. To verify the simulations, a prototype was built and tested which showed that the principle works in practice with a measured power stage efficiency of ηPwSt=85%.

Nyckelord: Converter Circuit, Emerging Technology, Emerging Topology, High Frequency Power Converter

Denna post skapades 2014-01-07.
CPL Pubid: 191541


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Institutioner (Chalmers)

Institutionen för energi och miljö, Elteknik



Chalmers infrastruktur