Prediction of Electromagnetic Radiation Emission from Telecommunication Power Supply
- Resource Type
- Conference
- Authors
- Wang, Weixin; He, Junping; Yang, Tao; Cao, Lingling
- Source
- 2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe) Power Electronics and Applications (EPE'23 ECCE Europe), 2023 25th European Conference on. :1-9 Sep, 2023
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Power, Energy and Industry Applications
Robotics and Control Systems
Transportation
Radio frequency
Voltage measurement
Power measurement
Power supplies
Transfer functions
Europe
Predictive models
EMC/EMI
EMI modeling
Power supply
Radio Frequency (RF)
- Language
The radiated emission (RE) certification is a major challenge to the development of a telecommunication (telecom) power supply. This challenge makes the accurate prediction of far field radiation important. This work proposes a novel far field RE prediction method combines the common mode (CM) voltage driving sources and their corresponding radiation transfer functions. The CM voltage driving sources of an AC/DC telecom power supply are identified and measured, and the amplitude-frequency curves of radiation transfer functions are gotten by electromagnetic numerical simulations. Then, the far field RE of a 4 kW telecom power supply with complex test layout is predicted and verified by experiment results in a 10 m semi-anechoic chamber. The main influence factors of radiated emission are subsequently analyzed too, which provide a theoretical basis for suppressing far field radiation.