Much of the book's content is derived from Texas Instruments' Power Supply Design Seminar (PSDS) papers. You can access these individual technical documents for free by searching for specific "SLUP" numbers on TI's technical library.
: A significant portion is dedicated to choosing from hundreds of possible circuit topologies and understanding the control algorithms—such as Pulse Width Modulation (PWM), which Mammano is famously credited with pioneering. fundamentals of power supply design mammano pdf portable