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专利名称：DC-DC Converter and associated driving
method
发明人：Anastasio, Vincenzo,Di Donna, Laura,Marino,
Pompeo,Cavallo, Alberto,Guida,Beniamino,Rubino, Luigi
申请号：EP11168741.4申请日：20110603公开号：EP2393195B1公开日：20191030
摘要：A bi-directional DC-DC converter (100) to convert a first DC voltage value into asecond DC voltage value, including a first cell (50) connectable between a low potentialregion (2) and a high potential region (4) and comprising a first converter network thatcan be coupled to the low potential region (2); a second converter network that can becoupled to the high potential region (4); a transformer (80) connected between the firstand the second converter network; an active clamp branch (56), connected in parallel tothe first converter network and including an enabling switch (62), a commutator switch() and a first capacitor (66) connected in series to one another. The enabling switch iskept open during operation in buck mode so as to bypass the active clamp branch (56)and closed during operation in boost mode so as to connect the active clamp branch.Furthermore, the switching of the commutator switch is controlled during the step-upvoltage operating mode by means of a switching signal having a duty cycle increasing bypreset steps from a minimum duty-cycle value.
代理机构：Bergadano, Mirko
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