When a system designer specifies a nonisolated dc/dc powermodule, considering the needed input voltage range isequally as important as considering the required performanceattributes and features. Generally, nonisolated moduleshave either a narrow or a wide input voltage range. Narrowinputmodules typically have a nominal input voltage of3.3, 5, or 12 V. For systems that operate from a tightlyregulated input bus—such as those that do not use batterybackup—a narrow-input module is often adequate sincethe input remains fairly stable.Offering greater flexibility, wide-input modules operatewithin a range of 7 to 36 V, which includes the popular12- or 24-V industrial bus. This enables a single module tobe used for generating multiple voltages. These modulesare ideal for industrial controls, HVAC systems, vehicles,medical instrumentation, and other applications that usea loosely regulated distribution bus. In addition, systemspowered by a rectifier/battery charger with lead-acidbattery backup almost always require wide-input modules.System designers who choose power supplies may wantto take a close look at the latest generation of wide-inputdc/dc modules.
標簽： Wide-input modules offer dc
上傳時間： 2014-12-24
上傳用戶：dragonhaixm
In this book, we aim to give you an introduction to a wide variety of topics important to you as a developer using UNIX. The word Beginning in the title refers more to the content than to your skill level. We ve structured the book to help you learn more about what UNIX has to offer, however much experience you have already. UNIX programming is a large field and we aim to cover enough about a wide range of topics to give you a good beginning in each subject.
標簽： introduction important you to
上傳時間： 2013-12-22
上傳用戶：youmo81
eForth is a small portable Forth design for a wide range of microprocessors. This is the first implementation for 8086. As machine dependency is consolidated into 31 code words, moving eForth to other CPU s will be much less of a chore comparing to other Forth models.
標簽： microprocessors portable eForth design
上傳時間： 2014-01-25
上傳用戶：從此走出陰霾
The extraordinary growth of the World Wide Web has been fueled by the ability it gives authors to easily and cheaply distribute electronic documents to an international audience. As Web documents have become larger and more complex, however, Web content providers have begun to experience the limitations of a medium that does not provide the extensibility, structure, and data checking needed for large-scale commercial publishing. The ability of Java applets to embed powerful data manipulation capabilities in Web clients makes even clearer the limitations of current methods for the transmittal of document data.
標簽： extraordinary the ability authors
上傳時間： 2015-08-11
上傳用戶：ANRAN
one dimensional PCF band simulation
標簽： dimensional simulation band one
上傳時間： 2013-12-23
上傳用戶：hebmuljb
轉載,增強可復用性的編寫.主要是對Band對象的相關描述.可自己觀看啦
上傳時間： 2013-12-17
上傳用戶：ljmwh2000
In order to thoroughly understand what makes Linux tick and why it works so well on a wide variety of systems, you need to delve deep into the heart of the kernel. The kernel handles all interactions between the CPU and the external world, and determines which programs will share processor time, in what order. It manages limited memory so well that hundreds of processes can share the system efficiently, and expertly organizes data transfers so that the CPU isn t kept waiting any longer than necessary for the relatively slow disks.
標簽： thoroughly understand variety order
上傳時間： 2014-12-07
上傳用戶：PresidentHuang
BAND pass filter example.
上傳時間： 2015-09-27
上傳用戶：yyyyyyyyyy
Calculates photonic band structure for either an fcc or diamond lattice of dielectric spheres of dielectric constant epsilon_a in a dielectric background of dielectric constant epsilon_b.
標簽： Calculates dielectric structure photonic
上傳時間： 2013-12-23
上傳用戶：litianchu
Calculates photonic band structure for either the bcc lattice of dielectric spheres of dielectric constant epsilon_a in a dielectric background of dielectric constant epsilon_b.
標簽： dielectric Calculates structure photonic
上傳時間： 2015-10-08
上傳用戶：skhlm
