Datenbogen (UCC25600EVM-644)InhaltsverzeichnisA 600-W, Isolated PFC Power Supply for AVR Amplifiers Based on the TAS5630 and TAS563111 Introduction42 Scope53 Electrical Performance64 Overall System Description74.1 System Block Diagram74.2 Overcurrent Protection (OCP)84.2.1 Main DC/DC Converter (OCP)84.2.2 Auxiliary Converter (OVP)84.3 Overtemperature Protection84.4 Standby94.5 Switchable Rail Voltage95 Design Considerations105.1 Dual Interleaved Boost PFC105.1.1 Boost Inductors105.1.2 Control Loop Considerations105.1.3 Start and Stopping the PFC Converter105.2 LLC Resonant DC/DC Converter115.2.1 LLC Gain115.2.2 Transformer and Resonant Inductor Design125.2.3 Voltage Rail Switching135.2.4 OVP135.2.5 Power Limit135.3 Auxiliary Converter136 Measurements146.1 LLC Control Loop Measurement146.2 System Efficiency156.2.1 Efficiency at 50V Rail Voltage156.2.2 Low Power Efficiency at 25V Rail Voltage156.2.3 Standby Power156.3 EMI Measurements167 Schematics178 Parts List218.1 Magnetics Supplier238.2 Heat-Sink Drawings248.2.1 HEATSINK1248.2.2 HEATSINK2249 PCB Layout2510 References28Important Notices29Größe: 4,05 MBSeiten: 37Language: EnglishHandbuch öffnen
