Troubleshooting Switching Power Converters |
23.09.2010 | |
Название: Troubleshooting Switching Power Converters: A Hands-on Guide Автор: Sanjaya Maniktala Издательство: Newnes Год: 2007 Страниц: 318 Формат: PDF Размер: 10.1 Mb ISBN: 978-0-7506-8421-7 Качество: eBook Язык: английский Power Supply design is all about detail. And a large part of that detail lies in the practical domain, largely because of the typically small number of microseconds of switching periods involved, and the even smaller tens of nanoseconds of switch transition times --- all these, in effect accentuating various "second-order" effects, that eventually end up playing prime havoc with "normal" expectations of how the circuit should behave. So not unsurprisingly, even after reading several books, most readers still find themselves no closer to the ultimate goal of designing an actual power supply. Sooner or later, all engineers start realizing the hard fact that designing a switching power supply isn't the trivial task it once seemed to be. But even after years of successfully mastering the underlying theory, the ultimate goal of creating a cost-effective, reliable and commercially viable power supply may still remain a distant dream, since success ultimately hinges on experience. Contents: The practical relationship between efficiency and duty cycle; Understanding datasheets and selecting the right components; Power IC bench evaluation and Selection; Proper PCB layout Practices; Practical buck converters; The Forward Converter; Practical boost converters; The PFC boost pre-regulator; Practical buck-boost converters; The off-line Flyback converter; Bench setup and grounding issues; Lab Instrumentation; General Measurements and Troubleshooting Techniques; Specific Troubleshooting Scenarios: High Output ripple and noise, Poor Load transient response, Poor Output voltage regulation, Start-up problems, Unwanted and Desirable Jitter, Alternate Cycle Instabilities, Loop compensation issues, Catastrophic Blow-ups, Output foldback or shutdown, Improperly set Current limit issues, Short circuit, Over-voltage, Short-term and Long-term Thermal failures, Mysterious System Shutdowns, Magnetic saturation failures, Safety issues, Troubleshooting EMI, Line surge test failures, ESD related failures, Acoustic noise issues and techniques to circumvent, Mechanical failures, Diagnosing Low efficiency, Poor reliability and Stress testing, Vibration Testing, Burn-in/HAST/HALT/Overstress/DRT Tests, Design for Manufacturability issues; Sample Component Datasheets; Choosing the Right Inductor for your Application; 5 years of reported problems; Reference Tables and Graphs for Quick Design and Validation. Скачать Troubleshooting Switching Power Converters, с: Turbobit.net DepositFiles.com UniBytes.com |