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Switching Power Supplies A to Z
Switching Power Supplies A to Z, by Sanjaya Maniktala (Newnes), starting at $54.95
Home » Power
Enermax MODU87+ 700 W Power Supply Review
Author: Gabriel Torres
Type: Reviews Last Updated: January 12, 2010
Page: 3 of 9
Real-time pricing for XFX P1-750B-CAG9.
XFX Black Edition 750W v2.2 ESP12V v2.91 SLI Ready CrossFire 80 PLUS Certified Modular Active PFC Power Supply P1-750B-CAG9 ATX12V SILVER
Newegg: $129.99 Buy.com: $134.99

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. 

This power supply is flawless on this stage, with two Y capacitors and one ferrite coil more than the minimum required, plus one X capacitor after the rectifying bridge.

Enermax MODU87+ 700 W power supply
click to enlarge
Figure 7: Transient filtering stage (part 1).

Enermax MODU87+ 700 W power supply
click to enlarge
Figure 8: Transient filtering stage (part 2).

Now let’s have a more detailed discussion of the components used in the Enermax MODU87+ 700 W.

Pages (9): « 1 2 [3] 4 5 6 7 8 9 »
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