Design of Boundary Mode Flyback Control Auxiliary Power Supply of a PV Inverter

Abstract:

This paper analyzes the principle of boundary mode flyback topology, presents a five-output auxiliary power supply of 3KW solar power inverter without the optocoupler feedback regulator circuit. The circuit has the characteristics of a simple structure, low cost, high efficiency and high reliability . The multi-output auxiliary power supply of the PV inverter schematic and a high frequency flyback transformer detail design are given. This power supply has been already used in an inverter. The experiment results prove that the auxiliary power supply has a stable work state, a low output ripple, a transformer without fever phenomenon, and meet the requirements of Solar power inverters.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 121-126
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.121
• Online since: February 2013
• Authors: Ya Jing Li, Wei Dong Geng
• Keywords: Auxiliary Power Supply, Boundary Mode, Flyback Controller

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