AN2864

Testing the board

Doc ID 15282 Rev 1

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Figure 21.

In Figure 21, while the board is working in full load condition with an input voltage of 115

high drain current, which activates the 2nd OCP protection. Without this protection the

converter runs continuously up to the activation of the overload protection, which requires a

few tens of milliseconds, with very high currents in the power section of the VIPER17L and

in the transformer

Figure 22.

Operating with secondary winding shorted restart mode

Ch1 = VDD