Control (management)

Voltage

Engineering

Variable (mathematics)

Economics

Computer science

Switching frequency

Rectifier (neural networks)

Duty cycle

Stochastic neural network

Mathematics

Management

Inductor

Electronic engineering

Mathematical analysis

Artificial intelligence

Control theory (sociology)

Artificial neural network

Converters

Resonant converter

Recurrent neural network

Machine learning

Electrical engineering

CPSS Transactions on Power Electronics and Applications

Conventionally, LLC resonant converter adopts frequency control (FC) or combine FC with phase shift control (PSC) to regulate the output voltage.However, for both control strategies, a variable switching frequency operation range is required, which makes the magnetic component and driver circuit design complicated.In this paper, the magnetic control (MC) or variable inductor control is adopted for the LLC resonant converter.Thanks to MC, constant switching frequency and duty cycle can be implemented for the primary switches.A comprehensive analysis of the magnetically controlled LLC resonant converter is presented, which includes the operation principle, voltage gain, and soft switching operation.Meanwhile, a design methodology for LLC resonant converter with MC is proposed, especially the design considerations for the variable inductor are discussed.By adopting the proposed design methodology, the zero voltage switching (ZVS) operation for the primary switches and the zero current switching (ZCS) operation for the secondary rectifier can be achieved.Finally, a 200 W experimental setup is built to validate the theoretical analysis. Index Terms-Design methodology

Comprehensive Analysis and Design of LLC Resonant Converter With Magnetic Control