5Various AC Load Impedances
The load impedance varies with different types of loads. Very few loads are truly resistive, as most are either capacitive or inductive. Some loads generate high-current pulses at twice the line frequency or twice the switching frequency, whereas others require high-frequency currents. All these statements, along with the rest of the information in this section, assume that none of these loads have any input filtering or any other circuitry to offset the conditions mentioned here.
5.1 The Resistive Load
The resistive load is the easiest for the EMI filter to handle. This assumes that the storage capacitor is left out in the circuit depicted in Figure 5.1. The only error would be the crossover error. This circuit ...
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