A magnetic resonance imaging, MRI, system configured to be powered by a main power source, the MRI system comprising: a plurality of gradient coils; and a gradient driver configured to drive the plurality of gradient coils (30, 32, 34), the gradient driver comprising: a plurality of gradient amplifiers, wherein each gradient amplifier of the plurality of gradient amplifiers is electrically coupled to a gradient coil of the plurality of gradient coils, and wherein each gradient amplifier comprises a respective single semiconductor bridge (350, 360, 370); and a high frequency power distribution unit, HFPDU, configured to receive an alternating current, AC, power signal from the main power source and to generate a direct current, DC power signal and supply it to the plurality of gradient amplifiers via two terminals of a DC bus that is shared among the plurality of gradient amplifiers to provide each of the plurality of gradient amplifiers is provided with the same DC voltage, wherein the HFPDU comprises: a power distribution unit configured to receive the AC power signal from the main power source and produce an intermediate DC power signal; and a power supply configured to receive the intermediate DC power signal from the power distribution and to provide the DC power signal to the DC bus, wherein the power supply comprises a transformer configured to isolate the DC power signal from the intermediate power signal, wherein the power supply comprises a capacitor bank comprising a capacitor connected between the two terminals of the DC bus and further comprising a grounding Y-capacitor circuit coupled to a safety ground of the MRI system, the grounding Y-capacitor circuit comprising a first capacitor connected between one terminal of the DC bus and the safety ground and a second capacitor connected between the other terminal of the DC bus and the safety ground. gradient coils; and a gradient driver configured to drive the plurality of gradient coils (30, 32, 34), the gradient driver comprising: a plurality of gradient amplifiers, wherein each gradient amplifier of the plurality of gradient amplifiers is electrically coupled to a gradient coil of the plurality of gradient coils, and wherein each gradient amplifier comprises a respective single semiconductor bridge (350, 360, 370); and a high frequency power distribution unit, HFPDU, configured to receive an alternating current, AC, power signal from the main power source and to generate a direct current, DC power signal and supply it to the plurality of gradient amplifiers via two terminals of a DC bus that is shared among the plurality of gradient amplifiers to provide each of the plurality of gradient amplifiers is provided with the same DC voltage, wherein the HFPDU comprises: a power distribution unit configured to receive the AC power signal from the main power source and produce an intermediate DC power signal; and a power supply configured to receive the intermediate DC power signal from the power distribution and to provide the DC power signal to the DC bus, wherein the power supply comprises a transformer configured to isolate the DC power signal from the intermediate power signal, wherein the power supply comprises a capacitor bank comprising a capacitor connected between the two terminals of the DC bus and further comprising a grounding Y-capacitor circuit coupled to a safety ground of the MRI system, the grounding Y-capacitor circuit comprising a first capacitor connected between one terminal of the DC bus and the safety ground and a second capacitor connected between the other terminal of the DC bus and the safety ground.