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Microwave Amplifier Power Supply. High Voltage Switching Power Supply Design at System Level (NOT A MICKY MOUSE) Sharing Industry Experience with EE136 Alex Chen MONDAY December 1, 2003. Traveling Wave TUBE or High Power RF Amplifier. Application
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Microwave Amplifier Power Supply High Voltage Switching Power Supply Design at System Level (NOT A MICKY MOUSE) Sharing Industry Experience with EE136 Alex Chen MONDAY December 1, 2003
Traveling Wave TUBE or High Power RF Amplifier • Application • Point to Point Satellite Communication • Rader Application • Commercial TV Broadcasting Application • Electrical Power Requirement for TWT -High Voltage 2.5kV 200kV (YES! 200kV) -Current @ 7mA 2A
Generating High Voltage (In Order) • Single Phase / 3-Phase Input • Input Line Filtering • Power Factor Correction • H-Bridge Switching • Pulse Width Modulation • Pre-Regulation and Post-Regulation • Rectification • Filtering to get pure High Voltage DC • Additional Sub-Systems (Heater, Fan Driver, Logic control and Human Interfacing)
Area of Discussion • Types of Switching Methods • The types of IC and other components • Multiple output Transformers • Human Interfacing and Protection Circuits • Insulating the High Voltage