The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2006
Filed:
Dec. 13, 2002
Guillaume Vire, Valence, FR;
Christophe Taurand, Valence, FR;
Guillaume Vire, Valence, FR;
Christophe Taurand, Valence, FR;
Thales, Paris, FR;
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 Cmfor setting ST either into an on state or into an isolated state, SB comprising a control input Cmfor 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 Pof breakers in series between the input terminal A and the free side of the breaker ST with i=1, 2 . . . K. K input capacitors Cfin series connected to the K pairs of breakers with i=1, 2 . . . K, . . . , K output capacitors Csin series, each output capacitor Csbeing connected between the common point of the breakers of the pair Pand the common point of the breakers of the previous pair P, with i=1, 2, . . . K, (when i=1, P=P=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.