FFC-NMR power supply with hybrid controlo of the semiconductor devices

Roque, Antonio; Sousa, Duarte M.; Oliveira Sebastião, Pedro José; Vaz da Silva, Vitor; Margato, Elmano

http://hdl.handle.net/10400.21/22106

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Authors

Roque, Antonio

Sousa, Duarte M.

Oliveira Sebastião, Pedro José

Vaz da Silva, Vitor

Margato, Elmano

Abstract(s)

The performance of FFC-NMR power supplies is evaluated not only considering the technique requirements but also comparing efficiencies and power consumption. Since the characteristics of FFC-NMR power supplies depend on the power circuit topology and on the control solutions, the control design is a core aspect for the development of new FFC systems. A new hybrid solution is described that allows controlling the power of semiconductors by switches (ON/OFF mode) or as a linear device. The approach avoids over-design of the power supply and makes it possible to implement new low power solutions constituting a novel design by joining a continuous match between the ON/OFF mode and the linear control of the power semiconductor devices.

Keywords

Power supply Semiconductor devices NMR Upward transient Downward transient Hybrid control

URI

http://hdl.handle.net/10400.21/22106

Citation

Roque, A., Sousa, D. M., Sebastião, P. J., Silva, V., & Margato, E. (2023). FFC-NMR power supply with hybrid controlo of the semiconductor devices. Journal of Low Power Electronics and Applications, 13(3), 1-10. https://doi.org/10.3390/jlpea13030052