Abstract: An insulated transfer device with particular topology, comprising on the primary, a switched-mode voltage step-up circuit, with a step-up inductance (LB) and an active buffer stage (DT, MT, CT) supplying a peak voltage greater than the peak voltage supplied by the input voltage source (vE) and two pairs of controlled switches controlling the application of the voltage supplied by the switched-mode voltage step-up circuit, to the terminals (Ep1, Ep2) of the primary winding and to the secondary, a full-wave rectifier with diodes (Ds1, Ds2) and controlled switches (Ms1, Ms2). On the primary, the voltage at the terminals of the capacitor CT of the active buffer stage used to apply a controlled AC voltage between the terminals Ep1 and Ep2 is regulated by controlling the time for which the controlled switches of the pairs are simultaneously in the closed state. On the secondary, VS is regulated by controlling the time for which the secondary switches are simultaneously in the closed state.

Abstract: An insulated transfer device with particular topology, comprising on the primary, a switched-mode voltage step-up circuit, with a step-up inductance (LB) and an active buffer stage (DT, MT, CT) supplying a peak voltage greater than the peak voltage supplied by the input voltage source (vE) and two pairs of controlled switches controlling the application of the voltage supplied by the switched-mode voltage step-up circuit, to the terminals (Ep1, Ep2) of the primary winding and to the secondary, a full-wave rectifier with diodes (Ds1, Ds2) and controlled switches (Ms1, Ms2). On the primary, the voltage at the terminals of the capacitor CT of the active buffer stage used to apply a controlled AC voltage between the terminals Ep1 and Ep2 is regulated by controlling the time for which the controlled switches of the pairs are simultaneously in the closed state. On the secondary, VS is regulated by controlling the time for which the secondary switches are simultaneously in the closed state.

Abstract: The invention relates to a series chopper comprising: a pair of input terminals A and B for connecting a DC input voltage Vin, a pair P of breakers SB, ST in series connected by the breaker SB to the input terminal B, ST comprising a control input Cm1 for setting ST either into an on state or into an isolated state, SB comprising a control input Cm2 for setting SB either into an on state or into an isolated state, a pair of output terminals C and D, for supplying, with an output voltage Vout, a load R the output terminal D being connected to the input terminal B and the output terminal C to the point of connection between the two breakers SB and ST in series across an inductor. The series chopper comprises K other additional pairs Pi of breakers in series between the input terminal A and the free side of the breaker ST with i=1, 2 . . . K. K input capacitors Cfi in series connected to the K pairs of breakers with i=1, 2 . . . K, . . .

Abstract: The invention relates to a series chopper comprising: