Twisting the output cables

The way I finally managed to get past the hurdle between Figure 11-1 and Figure 11-2 was by twisting the output cables tightly (see upper half of Figure 11-4). That was a trick we... 

Note A quick diagnostic test for understanding a particular high-frequency conducted EMI problem (measured by a LISN at the inputs of the power supply) is to twist the output cables of the power supply tightly together (along with their respective return wires). This induces field cancellation (also called flux containment), thus reducing the radiation from the output cables (if present). 

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