What is Power Electronics Electrical Power Power Semiconductor

What is Power Electronics? การควบคมและ /หรอการเปลยนแปลงระบบไฟฟากำลง (Electrical Power) จากระบบหนงไปเปนอกระบบหนงดวยการใชอ ปกรณอเลกทรอนกส )Power Semiconductor devices) Power Input Converter By Semiconductor devices Power Output Control Input RATCHASAK@HOTMAIL. COM 2

ประเภทของอเลกทรอนกสกำลง • มอย 4 ประเภท ดงน – AC-to-DC conversion (Rectifier) – DC-to-AC conversion (Inverter) – DC-to DC conversion (Chopper) – AC-to-AC conversion. )Cycloconverter) RATCHASAK@HOTMAIL. COM 4

Applications of Power Electronics • AC-to-DC Conversion (Rectifier) – Variable Speed dc Drives – Battery Chargers – DC Power Supplies – Power supply for a specific application like electroplating – Ect RATCHASAK@HOTMAIL. COM ������ 5

Applications of Power Electronics )ตอ ( • DC-to-AC conversion (Inverter) – Emergency Lighting Systems – AC Variable Speed Drives – Uninterrupted Power Supplies (UPS) – Frequency Converters – Ect RATCHASAK@HOTMAIL. COM 6

Applications of Power Electronics )ตอ ( • DC-to DC conversion – – – – (Chopper) Step-down switch-mode power supply Step-up chopper Fly-back converter and Resonant converter DC drive Battery charger DC power supply Ect. RATCHASAK@HOTMAIL. COM 7

Applications of Power Electronics )ตอ ( • AC-to-AC conversion. (Cycloconverter) – Light Dimmers – AC Motor Speed Controls RATCHASAK@HOTMAIL. COM 8