Hardware Secrets


Home | Camera | Case | CE | Cooling | CPU | Input | Memory | Mobile | Motherboard | Networking | Power | Storage | Video | Other
Content
Articles
Editorial
First Look
Gabriel’s Blog
News
Reviews
Tutorials
Main Menu
About Us
Awarded Products
Compare Prices
Datasheets
Dictionary
Download
Drivers
Facebook
Forums
Links
Manufacturer Finder
Newsletter
On The Web
RSS Feed
Test Your Skills
Twitter
Newsletter
Subscribe today!
Search




Recommended
Switching Power Supplies A to Z
Switching Power Supplies A to Z, by Sanjaya Maniktala (Newnes), starting at $94.20
Home » Power
AcBel Polytech iPower 660 Power Supply Review
Author: Gabriel Torres
Type: Reviews Last Updated: May 13, 2008
Page: 4 of 9
Real-time pricing for Cool Max CUG-700B.
Coolmax CUG-700B Green Power 700W SLI Unplug Supply CoolMax USA 14620 SED-COOCUG700 LED Electronics Usually ships in 24 hours
Amazon: $97.61 Office Depot: $159.99

Primary Analysis

On this page we will take an in-depth look at the primary stage of AcBel Polytech iPoer 660. For a better understanding, please read our Anatomy of Switching Power Supplies tutorial.

This power supply uses two GBU605 rectifying bridges connected in parallel in its primary, each one supporting up to 6 A at 100º C, so the rectifying section can handle up to 12 A at 100º C. The bridges aren’t attached to a heatsink. This section is clearly overspec'ed: at 115 V this unit would be able to pull up to 1,380 W from the power grid; assuming 80% efficiency, the bridges would allow this unit to deliver up to 1,104 W without burning them. Of course we are only talking about this component and the real limit will depend on all other components from the power supply. Of course the lack of a heatsink would limit this maximum current.

AcBel iPower 660
click to enlarge
Figure 8: Rectifying bridges.

The active PFC circuit uses two FCPF11N60 power MOSFET transistors, which one capable of handling up to 7 A in continuous mode at 100º C (or 11 A at 25º C; see the difference temperature makes) or 33 A in pulse mode at 25º C. These transistors are located on the same heatsink as the switching transistors.

On the switching section this power supply uses another two FCPF11N60 power MOSFET transistors in the traditional two-transistor forward configuration.

AcBel iPower 660
click to enlarge
Figure 9: Active PFC transistor (left) and switching transistor (right).

The primary section of this power supply is controlled by a FAN4800 integrated circuit, which is a PFC/PWM controller combo.

AcBel iPower 660
click to enlarge
Figure 10: Active PFC/PWM controller combo.

« Previous |  Page 4 of 9  | Next »
Print Version | Send to Friend | Bookmark Article | Comments (3)

Related Content
  • Why 99% of Power Supply Reviews Are Wrong
  • How Much Power Can a Generic 500 W Power Supply Really Deliver?
  • SilverStone Strider ST50F 500 W Power Supply Review
  • Zalman ZM460B-APS 460 W Power Supply Review
  • Rosewill Green Series 630 W (RG630-S12) Power Supply Review

  • Recommended Deal.
    Ultra ULT-LSP750Ultra ULT-LSP750

    Ultra LSP750 750-Watt Power Supply ATX SATA-Ready SLI-Ready 135mm Fan Lifetime Warranty w/ Registration

    CompUSA: $74.99

    RSSLatest News
    Antec Announces the One PC Case
    February 9, 2012 - 8:06 AM PST
    Cooler Master Releases Elite 361 PC Case
    February 8, 2012 - 7:50 AM PST
    Microsoft Launches Kinect for Windows
    February 2, 2012 - 8:42 AM PST
    Transcend Announces SSD720 SSD Series
    February 1, 2012 - 7:55 AM PST
    .:: More News ::.


    © 2004-12, Hardware Secrets, LLC. All rights reserved.
    Advertising | Legal Information | Privacy Policy
    All times are Pacific Standard Time (PST, GMT -08:00)