This paper presents the novel switching control method for synchronous rectifier with the asymmetric pulse-width-modulation (APWM) controlled full-bridge converter. Differently from the phase-shift control, the diagonally-located switches in the input-side of full-bridge converter operate simultaneously with the APWM method. If it operates in continuous current mode (CCM), the synchronous rectifier can be easily controlled with the OR-gated signal control method, which is conventionally used as the driving technique for synchronous rectifier with the phase-shifted control. However, the current flowing through the body diode of switches in synchronous rectifier still exists. In addition, the OR-gated signal control method results in the huge increase of total loss in discontinuous current mode (DCM) because of reverse currents flowing through channels of rectifier-side switches. In this paper, the switching control signals for synchronous rectifier are analyzed in both CCM and DCM to minimize total switch loss. Also, their boundary condition is mathematically analyzed. In summary, the new switching controller for synchronous rectifier is proposed, and its performance is evaluated by the PSIM simulation.
|Title of host publication||2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||8|
|Publication status||Published - 2018 Dec 3|
|Event||10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States|
Duration: 2018 Sep 23 → 2018 Sep 27
|Name||2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018|
|Other||10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018|
|Period||18/9/23 → 18/9/27|
Bibliographical noteFunding Information:
ACKNOWLEDGMENT This work was supported in part by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2016R1E1A1A-02920095) and in part by the Power Generation & Electricity Delivery Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20171220100330).
© 2018 IEEE.
All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Renewable Energy, Sustainability and the Environment
- Control and Optimization
- Computer Networks and Communications
- Hardware and Architecture
- Information Systems and Management