This volume features more than 250 ready-to-use power supply and battery charger circuit designs that represent the latest engineering practices. Rudolf F. Graf presents a cross section of modern circuits covering the entire range of power supplies, as well as battery charges suitable for use with batteries of various voltages and chemistries. Schematic is accompanied by a brief explanation of how each circuit works, and the original sources for all of the circuits are cited for readers who want additional information.