Circuitry for the control of power electronic circuits

摘要

The invention describes a circuitry in master - slave configuration for the control of power electronic circuits. The master has an input for a drive signal from a superordinate control and a first separator for separation of potential due to the superordinate control on. It is also an output stage with the associated auxiliary power supply for the control of an associated power semiconductor component, a plurality of monitoring functions and, furthermore, a further separating means, wherein said further separating means between the first separating element and the output stage is switched. The slave has a separating member connected to an output stage with the associated auxiliary power supply for the control of an associated power semiconductor component, on. In a first serial circuit is the separating member of a first slave to an output of the further separating means of the master and the input of the separating means of a further slaves is connected to the output of the separating means of the connected upstream of the slaves. Alternatively, it is in a second parallel circuit of the input of the separating means of each slaves directly to the output of the first separating means of the master connected.