Results on three experimental superconducting rectifiers are reported. Two of them are 1 kA low frequency flux pumps, one thermally and magnetically switched. The third is a low-current high-frequency magnetically switched rectifier which can use the mains directly.
ten Kate, H. H. J., Bunk, P. B., Britton, R. B., & van de Klundert, L. J. M. (1981). High current and high power superconducting rectifiers. Cryogenics, 21(5), 291-269. https://doi.org/10.1016/0011-2275(81)90006-0