摘要:
The invention relates to a converter and to a method for determining a current space vector for a converter that can be operated with pulse-width modulation, comprising signaling electronics and a power output stage that comprises circuit breakers disposed in three half bridges, each of which comprises a lower and an upper branch. Means for detecting the respective currents are disposed either in all three lower or in all three upper branches of the half bridges. At least one associated current sampled value is determined within a time segment by using two of the three means provided for detecting the currents. A current space vector is formed from the current sampled values determined by said pair of means, or the current values are formed in the output branches, in particular for use in a control and/or regulating method. Said pair of means is selected differently according to the output voltage space vector.
摘要:
The invention relates to a circuit board for a rectifier, comprising control electronics, wherein the circuit board comprises at least means for detecting current, wherein the means each comprise at least two measurement amplifier circuits, wherein only the output of a measurement amplifier circuit is fed into the control electronics of the rectifier as the detected current value.