A 14-W 94%-Efficient Hybrid DC-DC Converter with Advanced Bootstrap Gate Drivers for Smart Home LED Applications

This paper presents a 40V-to-8V hybrid DC-DC converter based on 5-to-1 Dickson converter. The converter can efficiently support wide and flexible output voltage ranges up to the input voltage, suitable for Smart Home LED driver applications. The GaN-based hybrid DC-DC converter prototype is experime...

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Main Authors: Pham-Nguyen, Loan, Nguyen, Van-Quyet, Nguyen, Duc-Manh, Han, Huy-Dung, Nguyen, Kim-Hoang, Le, Hanh-Phuc
Format: Conference Proceeding
Language:English
Subjects:
Costs
DC-DC power converters
Energy conversion
gate driver
Gate drivers
hybrid DC-DC converter
LED
LED lamps
Prototypes
Smart homes
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creator Pham-Nguyen, Loan
Nguyen, Van-Quyet
Nguyen, Duc-Manh
Han, Huy-Dung
Nguyen, Kim-Hoang
Le, Hanh-Phuc
description This paper presents a 40V-to-8V hybrid DC-DC converter based on 5-to-1 Dickson converter. The converter can efficiently support wide and flexible output voltage ranges up to the input voltage, suitable for Smart Home LED driver applications. The GaN-based hybrid DC-DC converter prototype is experimentally verified with commercial LED lamp, achieving peak efficiency of 94% while providing ~1,2A at wide output range from 4V to 28V. A modified bootstrap driver circuit is proposed to significantly reduce the number of gate drivers by ~57%, leading to a substantial decrease of circuit size and cost. Measurement results show that 94% peak efficiency is achieved for the converter using the proposed bootstrap circuit.
doi_str_mv 10.1109/ECCE.2018.8558150
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source IEEE Xplore All Conference Series
subjects Costs
DC-DC power converters
Energy conversion
gate driver
Gate drivers
hybrid DC-DC converter
LED
LED lamps
Prototypes
Smart homes
title A 14-W 94%-Efficient Hybrid DC-DC Converter with Advanced Bootstrap Gate Drivers for Smart Home LED Applications
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