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MOV-Slide26

Shown here is a typical power supply as used in a TV set top box. The three primary MOVs are in place as was described in the previous slide, as well as the overcurrent fuse. This designer has chosen to add an additional stage of MOV suppression after a simple filter. Using a secondary protection scheme like this will significantly reduce the chance of line disturbances from reaching sensitive downstream devices.

PTM Published on: 2011-05-31