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...

Full description

Saved in:
Bibliographic Details
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
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2329-3748
DOI:10.1109/ECCE.2018.8558150