Robust Power Supply Design in a Supply-Chain-Challenged World

An expert discussion with notes for the hobbyist on how to design power supplies while avoiding supply chain vulnerabilities

In Robust Power Supply Design in a Supply-Chain-Challenged World, engineer and power electronics specialist Ron Lenk delivers a comprehensive guide that delves into the intricacies of designing high-performance power supplies that use exclusively multi-source components. After considering robust passive and active components and how to do successful modeling with LTSpice, Lenk focuses on concrete, detailed examples of the design of robust power supplies.

Robust design examples include:

• A 500mV output LDO;
• A 5mW Boost converter;
• A 24W Passive PFC circuit;
• A 48-to-1V, 100A Bang-Bang Converter with Synchronous Rectification for an automotive AI chip;
• A 277VAC, 5000W PFC for LED stadium lighting; and
• An off-line 22KW, 2MHz four-slice EV charger

… plus many other topical examples, all designed with little more than op-amps, comparators and 555 timers.

Readers will also find:

• A thorough introduction to multiple types of converters, including bang-bang, PWM, and PFC
• Detailed specifications, design principles, and simulation of robust converters
• Practical discussions of high-speed and high-precision designs, and of system optimization
• Treatment of reliability calculations and special topics such as current limiting and negative voltage generation

Perfect for power supply engineers, Robust Power Supply Design in a Supply-Chain-Challenged World will also benefit graduate and senior undergraduate students with an interest in power electronics and power systems. Each chapter has a special section with tips for the Hobbyist interested in designing and building their own power supplies.

Ron Lenk, FRSS, was the co-founder and CEO of SwitchLight, and is now a power supply and power systems consultant. He is a Life Member of the IEEE, a Fellow of the Royal Statistical Society, a co-author of Practical Lighting Design with LEDs, 2nd Edition, and the author of Practical Design of Power Supplies. He currently has 36 US patents issued in his name.