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Home » Power
Antec TruePower Quattro 850 W Power Supply Review
Author: Gabriel Torres
Type: Reviews Last Updated: May 15, 2008
Page: 3 of 10
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Transient Filtering Stage
Hardware Secrets Bronze 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.

The transient filtering stage from this power supply is outstanding, with four extra Y capacitors, two extra X capacitors and a ferrite bead attached to the main AC cable. This power supply also provides an X capacitor after the rectifying bridge.

Antec TruePower Quattro 850 W
click to enlarge
Figure 8: Transient filtering stage (part 1).

Antec TruePower Quattro 850 W
click to enlarge
Figure 9: Transient filtering stage (part 2).

In the next page we will have a more detailed discussion of the components used in the TruePower Quattro 850 W.

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