An electromagnetic interference, EMI, filter system (102; 102'), comprising: a first terminal to receive a first phase signal of a three-phase power system (100; 101'); a second terminal to receive a second phase signal of the three-phase power system (100; 101'); a third terminal to receive a third phase signal of the three-phase power system (100; 101'); a first filter inductor to filter the first phase signal; a second filter inductor to filter the second phase signal; a third filter inductor to filter the third phase signal; and a switch control module (170; 170'), comprising: a signal detection module (180; 180') coupled to the filtered first phase signal; a processor module (190; 190') coupled to the signal detection module to determine if the filtered first phase signal exceeds a first threshold or a second threshold, wherein the first threshold corresponds to a first current level or a first loading condition of the system, and wherein the second threshold corresponds to a second current level or a second loading condition of the system; a driver circuit coupled to the processor module; a first switch coupled to a first filter capacitor, a second filter capacitor, and to the driver circuit; a second switch coupled to a third filter capacitor, a fourth filter capacitor and to the driver circuit; and a third switch coupled to a fifth filter capacitor, a sixth filter capacitor and to the driver circuit, wherein the processor module activates the driver circuit to: actuate the first, second, and third switches (SW1, SW2, SW3) when the first threshold is exceeded for coupling the first, third, and fifth filter capacitors into the EMI filter (102; 102'), and actuate the first, second, and third switches (SW1, SW2, SW3) when the second threshold is exceeded for coupling the second, fourth, and sixth filter capacitors into the EMI filter (102; 102'). a first terminal to receive a first phase signal of a three-phase power system (100; 101'); a second terminal to receive a second phase signal of the three-phase power system (100; 101'); a third terminal to receive a third phase signal of the three-phase power system (100; 101'); a first filter inductor to filter the first phase signal; a second filter inductor to filter the second phase signal; a third filter inductor to filter the third phase signal; and a switch control module (170; 170'), comprising: a signal detection module (180; 180') coupled to the filtered first phase signal; a processor module (190; 190') coupled to the signal detection module to determine if the filtered first phase signal exceeds a first threshold or a second threshold, wherein the first threshold corresponds to a first current level or a first loading condition of the system, and wherein the second threshold corresponds to a second current level or a second loading condition of the system; a driver circuit coupled to the processor module; a first switch coupled to a first filter capacitor, a second filter capacitor, and to the driver circuit; a second switch coupled to a third filter capacitor, a fourth filter capacitor and to the driver circuit; and a third switch coupled to a fifth filter capacitor, a sixth filter capacitor and to the driver circuit, wherein a signal detection module (180; 180') coupled to the filtered first phase signal; a processor module (190; 190') coupled to the signal detection module to determine if the filtered first phase signal exceeds a first threshold or a second threshold, wherein the first threshold corresponds to a first current level or a first loading condition of the system, and wherein the second threshold corresponds to a second current level or a second loading condition of the system; a driver circuit coupled to the processor module; a first switch coupled to a first filter capacitor, a second filter capacitor, and to the driver circuit; a second switch coupled to a third filter capacitor, a fourth filter capacitor and to the driver circuit; and a third switch coupled to a fifth filter capacitor, a sixth filter capacitor and to the driver circuit, wherein the processor module activates the driver circuit to: actuate the first, second, and third switches (SW1, SW2, SW3) when the first threshold is exceeded for coupling the first, third, and fifth filter capacitors into the EMI filter (102; 102'), and actuate the first, second, and third switches (SW1, SW2, SW3) when the second threshold is exceeded for coupling the second, fourth, and sixth filter capacitors into the EMI filter (102; 102'). actuate the first, second, and third switches (SW1, SW2, SW3) when the first threshold is exceeded for coupling the first, third, and fifth filter capacitors into the EMI filter (102; 102'), and actuate the first, second, and third switches (SW1, SW2, SW3) when the second threshold is exceeded for coupling the second, fourth, and sixth filter capacitors into the EMI filter (102; 102').