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Semiconductor Component Reduction in AC-DC Converters with Transmission Lines
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| Author(s) |
Andreas KARVONEN, Sverker SANDER |
| Abstract |
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\%. |
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| Filename: | 0616-epe2013-full-14301967.pdf |
| Filesize: | 2.589 MB |
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| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
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