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Home » Power
Enermax PRO82+ 525 W Power Supply Review
Author: Gabriel Torres 121,745 views
Type: Reviews Last Updated: May 8, 2008
Page: 3 of 10
Transient Filtering Stage
Hardware Secrets Golden Award

As we have mentioned in other articles and reviews, the first place we look when opening a power supply for a hint about its quality, is its filtering stage. The recommended components for this stage are two ferrite coils, two ceramic capacitors (Y capacitors, usually blue), one metalized polyester capacitor (X capacitor), and one MOV (Metal-Oxide Varistor). Very low-end power supplies use fewer components, usually removing the MOV and the first coil.

On this stage this power supply is flawless, providing two extra Y capacitors, one extra ferrite coil and a ferrite bead attached to the main AC cable. This power supply also provides an X capacitor after the rectifying bridge and its MOV is located after the rectifying bridge, not before as usual.

Enermax PRO82+ 525 W Power Supply
click to enlarge
Figure 7: Transient filtering stage (part 1).

Enermax PRO82+ 525 W Power Supply
click to enlarge
Figure 8: Transient filtering stage (part 2).

In the next page we will have a more detailed discussion about the components used in the PRO82+ 525 W.

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