Importance

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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, . . . , K output capacitors Csi in series, each output capacitor Csi being connected between the common point of the breakers of the pair Pi and the common point of the breakers of the previous pair Pi-1, with i=1, 2, . . . K, (when i=1, Pi-1=P0=P). The breakers of these other K additional pairs are operated simultaneously so as to form, when the breaker SB of the pair P is operated into the on state, a first network of capacitors, and when the breaker ST of the pair P is operated into the on state, a second network of capacitors.

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First Claim