!#1: Coupon Pulse Transformer: January 2012

Tuesday, January 31, 2012

Onkyo C-7030 Compact Disc Player (Black)

!: Save Onkyo C-7030 Compact Disc Player (Black) Buy Now

Brand : Onkyo
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Price : $199.85
Post Date : Jan 31, 2012 06:06:43
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For music lovers who enjoy the tangible experience of playing a physical format, the CD retains its enduring appeal. The pleasure comes not just from browsing a collection of discs and reading the liner notes. It also comes from enjoying your music in superior fidelity. By combining high-quality components and decades of Onkyo audio know-how, the C-7030 CD player delivers a superb playback experience. The key lies in keeping the audio signal clean and free from interference, all the way to the output stage. To achieve this, we employ a new high-precision clock to dramatically reduce timing errors, along with our original VLSC to reduce pulse noise. Driving the system is a massive, custom-built transformer that provides a clean and stable power supply. Given how affordable the C-7030 is, build quality is exceptional. A 1/16? (1.6 mm)-thick flat chassis base helps reduce unwanted vibrations, while the sleek aluminum front panel provides an elegant finish.

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Tuesday, January 24, 2012

Power Electronics Converter Harmonics: Multipulse Methods for Clean Power

!: New Power Electronics Converter Harmonics: Multipulse Methods for Clean Power Right now

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Price : $149.99
Post Date : Jan 24, 2012 13:22:15
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Electrical Engineering/Power and Energy Engineering Power Electronic Converter Harmonics Multipulse Methods for Clean Power "An excellent treatment of the subject." --Allan Ludbrook, Ludbrook & Associates "Pulls all the material together and presents it from the viewpoint of a long-time practitioner in the field . will be much appreciated by designers, the utilities, and users." --Thomas Barton, University of Calgary Stay on the cutting edge of applied power electronics for energy-saving systems with this invaluable guide to multipulse converters, power sources, and the IEEE Industry Standard 519. One of the foremost experts in the field and holder of 28 patents, Derek A. Paice brings you new circuit schematics and easy-to-follow methods for practical system analysis, using actual field test results. This book offers thorough coverage of:
* Requirements, calculations, and standards for harmonics
* Power source representation
* Multipulse methods and transformers
* Double-wound, auto-wound, interphase, and current-control transformers
* Multiphase circuit performance
* Practical applications
* Useful formulas for analysis
Power Electronic Converter Harmonics will be indispensable to anyone looking for optimum concepts for power electronics design, including applications engineers, consultants, and manufacturers. Also of Interest from IEEE Press. Printed Circuit Board Design Techniques for EMC Compliance Mark I. Montrose 1996 Hardcover 256 pp IEEE Order No. PC5595 ISBN 0-7803-1131-0 electromagnetic Compatibility in Power Electronics Laszlo Tihanyi 1995 Hardcover 416 pp IEEE Order No. PC3129 ISBN 0-7803-0416-0 Handbook of Electrical and Electronic Insulating Materials Second Edition W. Tillar Shugg, Shugg Enterprises, Inc. 1995 Hardcover 608 pp IEEE Order No. PC 3780 ISBN 0-7803-1030-6

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Wednesday, January 18, 2012

Transformers: War for Cybertron Road to Wave 74

!: Transformers: War for Cybertron Road to Wave 74

we got to wave 74 on escalation for more info about the match go too ..... www.tfw2005.com sorry about the bad quality, didn't have a lot of time to do this in. I will try over the weekend to make a new video with better quality. Watch for the game glitches, at the beginning of wave 74 snipe respawn, because he died, but as you can see, we cannot see him. enemies by this time had completely disappeared.

Transformers: War for Cybertron Road to Wave 74

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Wednesday, January 11, 2012

Trends UD-10.1 USB Audio Converter

Trends UD-10.1 USB Audio Converter Review

Trends UD-10.1 USB Audio Converter Feature

In the front panel, there are the USB socket and the headphone socket (can convert to a pair of RCA audio output with the bundled adaptor). The back panel is mainly the digital outputs (optical x1, coaxial x2 (RCA & BNC), AES/EBU x1 for UD-10.1 and optical x1) and the external power supply socket.high-end Burr Brown PCM2704 IC for USB audio conversion
proprietary impedance matching circuits for AES/EBU(110ohm), Coaxial(75ohm) digital outputs.applied the specially designed pulse transformers for each AES/EBU and Coaxial outputs to further isolated interference from UD-10.1 to the external DAC. The most pure, accurate, standard digital signal is then regenerated with minimum interference and jitter.plug-and-play without driver installation for most PC/Mac operating systems, e.g. Windows 2000, Windows XP, VISTA , Mac OS X and Linux OS.
We applied audiophile grade materials and electronic components, including the high-quality Japanese/Korean precise SMD resistors and capacitors. Besides reducing the space, it also reduces the resident inductance (relative to DIP components). The power filtering and decoupling is using Sanyo OS-CON solid-state electrolyte capacitors. The analog signal decoupling and coupling are using ELNA Silmic electrolyte capacitors and WIMA MKP10 film capacitors
proprietary dual power regulation circuits design (normal implementations are just directly apply the 5V USB bus power). No matter the power is supplied from the USB bus or from external socket, it is regulated before supply to the related ICs. Dual regulated powers are supplied to digital circuits and analog circuits individually. separated digital/analog ground. The digital GND (network) and the analog GND (solid) is totally separated except connected via a ferrite bread in a single point. It effectively reduce interference between digital signals and analog signals
Option to use USB bus power [convenient] or external power [better sound] (e.g. Trends PW-10 PSU or AA size rechargeable battery 1.2V x4=5V, don't use normal batteries with 1.2V x4=6V, it would be too high for safety and good sound performance).4pins high accuracy crystal clock (±10ppm, UD-10.1).applied RS422 driving IC to concurrently drive 4 groups of balance & non-balance digital outputs. Audiophiles can compare the differences between these digital outputs instantly or play for the Bi-DACs or even Quad DACs.

Trends UD-10.1 USB Audio Converter Overview

There are more and more good quality audio DACs newly released. But, a good audio source is still difficult to find. Trends Audio developed the Trends UD-10.1 USB Audio Converter, which works as an external sound card with various formats of digital output and decoded headphone output. It effectively isolated the serious interference from within the PC/Mac case. e.g. the high frequency data signals, the switching-mode power supply and the FAN motors, etc....On the other hand, Trends UD-10.1 upgrades your PC/Mac to be a hi-end audio source. Thanks to the excellent power supply handling, the high accuracy clock and the sophisticated digital output circuit, the Trends UD-10.1 makes your PC/Mac to behave as a high-end CD transport to work with an external DAC. Yet, the Trends UD-10.1 and PC/Mac combination provides better sound quality, larger storage capacity and a more user-friendly interface than most standard CD players. (Remarks: computer hard disk is far superior to a CD player, no matter the speed, stability, error correction, jitter reduction. They are actually the technology of different eras. These are the four main uses for the Trends USB Audio Converter.1. Audiophile USB Transport (provide a digital interface to connect to your own DAC)2. External USB sound card for PC and Mac3. PC/Mac USB Headphone Amplifier4. PC/Mac USB DACThe Trends UD-10.1 USB audio converter plugs into your PC or Mac's USB port and lets you connect your computer to your Hi-Fi or Home Cinema system easily, and with high sound quality.