Abstract: The application relates to a charging system, including a number of m chargers each adapted for providing electrical energy to charge an electrical vehicle, whereby m is an integer and m?1, a number of n outlet ports each adapted for electrically connecting the electrical vehicle, whereby n is an integer and n?2, and a switchable connection matrix device including a number of n outlet port switches each adapted for electrically connecting at least one of the m chargers to one of the n outlet ports and, if m>1, a number of m?1 charger switches each adapted for electrically connecting two of the m chargers, whereby the switchable connection matrix device is adapted for detecting a short-circuit between at least two outlet ports and/or for generating a fault signal if the short-circuit between at least two outlet ports is detected.

Abstract: The application relates to a charging system, including a number of m chargers each adapted for providing electrical energy to charge an electrical vehicle, whereby m is an integer and m?1, a number of n outlet ports each adapted for electrically connecting the electrical vehicle, whereby n is an integer and n?2, and a switchable connection matrix device including a number of n outlet port switches each adapted for electrically connecting at least one of the m chargers to one of the n outlet ports and, if m>1, a number of m-1 charger switches each adapted for electrically connecting two of the m chargers, whereby the switchable connection matrix device is adapted for detecting a short-circuit between at least two outlet ports and/or for generating a fault signal if the short-circuit between at least two outlet ports is detected.

Abstract: The invention relates to a charging device for electric vehicles, including: a plurality of charging connections, of which each charging connection is configured for exchanging power with at least one electric vehicle; a plurality of current converters, of which each current converter is configured for converting power from a power source to a suitable format for charging the electric vehicle with direct current; and, a switchable connection matrix that is configured for connecting at least one current converter to at least one charging connection by means of at least one circuit breaker for providing a maximum rated current IN at the charging connection, a plurality of high voltage contactor switches, wherein in addition to the connection matrix, at least one of the high voltage contactor switches is arranged between each current converter and each charging connection in the relevant direct current path, and each high voltage contactor switch is configured for switching a maximum current IMAX>3*IN; and, h

Abstract: A semiconductor stack for a converter comprises two series-connected semiconductor switches; two terminals for connecting a cell capacitor, which are connected to one another by the two semiconductor switches; at least one cooling element arranged between the semiconductor switches; a frame, by which the semiconductor switches and the cooling element are fixed to one another and which provides the terminals; and at least two snubber capacitors which are mechanically fixed to the frame and which are connected in parallel, are connected to the terminals and which in each case form a commutation loop with the semiconductor switches.

Abstract: A semiconductor stack for a converter comprises two series-connected semiconductor switches; two terminals for connecting a cell capacitor, which are connected to one another by the two semiconductor switches; at least one cooling element arranged between the semiconductor switches; a frame, by which the semiconductor switches and the cooling element are fixed to one another and which provides the terminals; and at least two snubber capacitors which are mechanically fixed to the frame and which are connected in parallel, are connected to the terminals and which in each case form a commutation loop with the semiconductor switches.