Network feedback unit (1, 1'), which is designed to feed electrical energy from a voltage intermediate circuit into a three-phase network, wherein the network feedback unit (1, 1') comprises: - a buck converter unit comprising a first buck converter and a second buck converter, wherein the first buck converter and the second buck converter are connected in parallel and wherein the input side of each of which can be electrically coupled to the voltage intermediate circuit, wherein the network feedback unit (1, 1') is designed to clock the first buck converter and the second buck converter based on pulse-width modulation, in a manner staggered by 180 degrees, - an inverter, the input side of which is electrically coupled to an output of the buck converter unit and the output side of which can be electrically coupled to the three-phase network, - a filter capacitor which is arranged at the output of the buck converter unit, and a current sensor arranged in the filter current path, which current sensor is designed to measure the filter capacitor current (iCF); or a number of filter capacitors (CF1, CF2, CF3) at the output of the inverter, and a corresponding number of current sensors (12a, 12b, 12c), wherein the current sensors (12a, 12b, 12c) are each designed to measure an associated filter capacitor current (iCF1, iCF2, iCF3), - a controller unit, which is designed to drive the first buck converter and the second buck converter depending on the measured filter capacitor current (iCF) or the measured filter capacitor currents (iCF1, iCF2, iCF3) and depending on the measured phase output currents (iAC1, iAC2, iAC3), which are fed into the three-phase network by means of the inverter, in such a way that the first buck converter and the second buck converter contribute in equal parts to an output current (iZK) of the buck converter unit. - a buck converter unit comprising a first buck converter and a second buck converter, wherein the first buck converter and the second buck converter are connected in parallel and wherein the input side of each of which can be electrically coupled to the voltage intermediate circuit, wherein the network feedback unit (1, 1') is designed to clock the first buck converter and the second buck converter based on pulse-width modulation, in a manner staggered by 180 degrees, - an inverter, the input side of which is electrically coupled to an output of the buck converter unit and the output side of which can be electrically coupled to the three-phase network, - a filter capacitor which is arranged at the output of the buck converter unit, and a current sensor arranged in the filter current path, which current sensor is designed to measure the filter capacitor current (iCF); or a number of filter capacitors (CF1, CF2, CF3) at the output of the inverter, and a corresponding number of current sensors (12a, 12b, 12c), wherein the current sensors (12a, 12b, 12c) are each designed to measure an associated filter capacitor current (iCF1, iCF2, iCF3), - a controller unit, which is designed to drive the first buck converter and the second buck converter depending on the measured filter capacitor current (iCF) or the measured filter capacitor currents (iCF1, iCF2, iCF3) and depending on the measured phase output currents (iAC1, iAC2, iAC3), which are fed into the three-phase network by means of the inverter, in such a way that the first buck converter and the second buck converter contribute in equal parts to an output current (iZK) of the buck converter unit.