Efficiency enhancement of flyback converter using synchronous rectification

Talesara, Bhavna; Jayapal, R.; Susheel, B; Rao, S.; Singh, Bhoopendra

doi:10.1109/indicon.2015.7443380

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2020

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Cited by 9 publications

(2 citation statements)

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“…Using D = 53%, a turns-ratio of approximately 4.2 is obtained from (1). Using (2) the maximum reverse voltage in the secondary rectifier (Vds_SRmax) can be calculated, which is especially important if a synchronous rectification switch is used to improve the efficiency, as in this case [22] - [24].…”

Section: Parameter Valuementioning

confidence: 99%

A High-Efficiency Isolated Wide Voltage Range DC-DC Converter Using WBG Devices

et al. 2022

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Section: Parameter Valuementioning

confidence: 99%

A High-Efficiency Isolated Wide Voltage Range DC-DC Converter Using WBG Devices

et al. 2022

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“…There are a few methods to improve the flyback converter efficiency. The synchronous rectification can be adopted in cases of high-output currents to reduce voltage drop on the output rectifier [12][13][14]. The active clamp [6,15] or inductor-capacitor snubber circuit design [16,17] can be used to improve efficiency at cases of high primary spike losses.…”

Section: Introductionmentioning

confidence: 99%

Dual range flyback topology for high efficiency at dual voltage mains

Ezra

2020

IET Power Electronics

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This study introduces a dual range flyback converter, which overcomes low efficiency of the conventional flyback converter for universal mains voltages, i.e. 220 and 110 V AC mains. The topology comprises of reconfigurable primary power loops enabled by additional state switches. This combination allows the converter to run in parallel or series modes, enhancing the performance at 220 V AC high line or 110 V AC low line mains. It reduces the voltage rating of devices, supports two working points that operate in boundary conduction mode under fixed frequency and improves the utilisation of the devices. A 100 kHz, 60 W, 110 V AC or 220 V AC to 13 V DC converter has been designed and tested. The experimental results of the proposed converter have been compared against a conventional flyback converter. The results show a small improvement of performance at low voltage (110 V AC) and considerable performance improvement at high voltage (230 V AC): 0.6 and 2.3% efficiency improvement at full load, respectively.

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