Voltage changer, e.g. for switching three voltage levels in a power semiconductor, has capacitors wired in series to form a direct current voltage circuit and networks for limiting current build-up

摘要

Two capacitors connected in series form a direct current voltage circuit (1). There are first (5) and second (10) networks for limiting current build-up along with first (S1), second (S2), third (S3) and fourth (S4) triggerable bidirectional power semiconductor switches (PSS) and fifth (S5) and sixth (S6) non-triggerable unidirectional PSS.