Carrozza, S. Bastos, M.C. Burini, F. Bylinskii, I.V. Ferrari, E. Hudson, G. King, Q. Le Godec, G. Louie, W. L. Nussbaumer, R.B. Pretelli, M.P. Taddia, G.T. JACoW Geneva, Switzerland 978-3-95450-167-0 10.18429/JACoW-Cyclotrons2016-TUP10 English 186-189 TUP10 power-supply controls TRIUMF cyclotron interface Contribution to a conference proceedings 2017 2017-01 http://dx.doi.org/10.18429/JACoW-Cyclotrons2016-TUP10 http://jacow.org/cyclotrons2016/papers/tup10.pdf A sophisticated power supply was studied and de-signed to supply a high current to the main magnet of the TRIUMF cyclotron. The power supply will be operated with a current up to 20000 A in DC mode. It has been designed using a modular approach, with a 12-pulse input rectifier and two DC link which feeds sixteen DC/DC chopper modules in parallel connection. The conceived power supply integrates a sophisticated control and a precise current measurement chain devel-oped at CERN for the Large Hadron Collider (LHC). This paper presents the solution described in the de-sign report, the choice of the main purchased components which will lead to a final assembly and test before the end of 2016.