TDK Power Electronics World Welcome to Power Electronics World Communications and broadcasting equipment Measuring instruments and test equipment Factory automation and control equipment Introductory Section ● What Is Direct Current (DC)? What Is Alternating Current (AC)? 3 ● There Is No Such Thing as Perfect DC or AC・・ 4 ● Why Are Stabilization Circuits Needed?・・・・ 5 ● Power Supply Devices Play a Variety of Different Roles 6 ● What Is Rectification? What Is Smoothing? 7 ● The Functions of Main Components・・・・・・・・ 8 ● Creating Optimal Power Supply Systems・・・ 9 ● Distributed Power Supply Systems and Power Modules 10 Computers and office automation equipment Medical devices Technology Section ● Structure of Linear Power Supplies・・・・・・・ 11 ● Structure of Switching Power Supplies・・・・ 12 ● Basic Circuits of Non-Insulation type DC-DC Converters・・ 13 ・Chopper Type (Back Converter, Boost Converter), Charge Pump Type ● Basic Circuits of Insulation type DC-DC Converters 15 ・Flyback Converter, Forward Converter, RCC Type, Push-Pull Type, Full-Bridge Type ● Technologies for Improving Efficiency・・・・ 17 ・Areas of Loss in Switching Power Supplies, Soft Switching, Power Factor and Harmonic Correction (PFHC) Circuits, Synchronous Rectification Method, Digital Control ● Key Parts That Support Power Supply Performance 19 ・Capacitors, Coils and Transformers ● Noise Countermeasures in Switching Power Supplies 20 ● Uninterruptible Power Supplies・・・・・・・・・・ 21 ● New Power Supply Systems and Batteries 22 ● Switching Power Supply Development History 1 Automobiles and traffic control equipment Household appliances and consumer electronics 2