Patent ID: 6377107
Filing Date: 2002-04-23
Classification: H02M,H03K

Abstract:
A circuit arrangement, havingat least one electric main switch (T1; T2) with a reference electrode (E), a control electrode (B), and a work electrode (C), a free-wheeling diode (D1; D2), which is connected antiparallel to the main flow direction of each main switch (T1; T2), characterized in that each main switch (T1; T2) is assigned an electric auxiliary switch (T11; T22), whose work electrode is connected to the control electrode (B) of the associated main switch (T1; T2) and whose reference electrode is connected to the reference electrode (E) of the associated main switch (T1; T2), and at least one capacitor (C11; C22) is disposed between the control electrode of the auxiliary switch (T11; T22) and the work electrode (C) of the associated main switch (T1; T2), and a discharge unit (E11; D11; D22) is disposed between the control electrode and the reference electrode of the auxiliary switch in such a way that the at least one capacitor (C11; C22) can be discharged during the transition of the main switch (T1; T2) from the OFF state to the ON state.