of one bulk storage capacitor reduces the cost of circuit assembly in production by reducing component count in one embodiment inductor 202 also does not necessarily the same inductance value as inductor 105 and is chosen in each case to optimize the pi filter performance with the ac source capacitance 201 and bulk storage capacitor 203 in operation the rectified and smoothed or filtered dc voltage at dc output 106 is received by power conversion circuit 208 which generates an output voltage at power conversion circuit output 210 in one embodiment power conversion circuit 208 is a switched mode power converter and the emi filter circuit of fig2 is employed to filter the emi in accordance with the teaching of the present invention fig3 shows a schematic illustrating another embodiment of a power supply input stage employed in a power supply in accordance with the teachings of the present invention the circuit shown is again a simplification of that shown in fig1 through the elimination of the fuse 101 and also one of the bulk storage capacitors 103 and 104 in the circuit of fig3 the input fuse function is provided by inductor 302 which also forms part of the emi filter in this configuration however the inductor 302 is placed on the output side of the rectifier circuit 300 that.