Power supply design is all about detail - 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. This…mehr
Power supply design is all about detail - 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. This book presents practical knowledge the author acquired, while working "in the trenches" for several years in major engineering companies scattered across several continents.
Sanjaya Maniktala is the author of several power electronics books and currently CTO of his own company, Chargedge. Mr. Maniktala earned several patents in power conversion and power over ethernet, including the floating buck regulator topology and mode transitioning in a buck-boost converter using a constant duty cycle difference technique. He initiated the first unified approach to switching topologies and was also the first to recognize, articulate and apply fundamental power and frequency scaling principles to resonant topologies, which resulted in the world's simplest one-page design methodology for LLC converters. Sanjaya holds degrees in physics from St. Stephen's College Delhi, IIT Bombay and Northwestern University Illinois. Professionally, he has worked in well-known companies such as Freescale, Siemens AG and Broadcom and spent over five years at National Semiconductor (now Texas Instruments) in Santa Clara, California.
Inhaltsangabe
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.
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.
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