Coupled-inductor DC-DC power converter
Abstract
A DC-to-DC power converter device has a common magnetic core structure that serves the functions of both transformer device and output inductor by integrating each into the common core. The transformer device has primary and secondary windings integrated into a first leg structure of the magnetic core, and the output inductor device has an output inductor winding integrated into a second leg structure of the magnetic core, the inductor winding structure for delivering output current to a load when a periodically switched input voltage is applied across the primary winding structure. The winding polarities of the transformer secondary winding structure and of the output inductor winding structure provide oppositely oriented polarities of electromotive force (EMF) to substantially reduce an output current ripple to an output load when delivering power through the transformer, through the output inductor and into the output load. A third leg structure of the common magnetic core allows magnetic flux passing through the transformer leg structure to partially magnetically couple to flux passing through the inductor leg structure, thereby allowing adjustment of the output voltage at which output current ripple is minimized.
- Inventors:
- Issue Date:
- Research Org.:
- International Business Machines Corp., Armonk, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1498494
- Patent Number(s):
- 10186949
- Application Number:
- 15/808,804
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H02 - GENERATION H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- DOE Contract Number:
- B621073
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2017 Nov 09
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 24 POWER TRANSMISSION AND DISTRIBUTION
Citation Formats
Ferencz, Andrew, Takken, Todd E., Zhang, Xin, and Yao, Yuan. Coupled-inductor DC-DC power converter. United States: N. p., 2019.
Web.
Ferencz, Andrew, Takken, Todd E., Zhang, Xin, & Yao, Yuan. Coupled-inductor DC-DC power converter. United States.
Ferencz, Andrew, Takken, Todd E., Zhang, Xin, and Yao, Yuan. Tue .
"Coupled-inductor DC-DC power converter". United States. https://www.osti.gov/servlets/purl/1498494.
@article{osti_1498494,
title = {Coupled-inductor DC-DC power converter},
author = {Ferencz, Andrew and Takken, Todd E. and Zhang, Xin and Yao, Yuan},
abstractNote = {A DC-to-DC power converter device has a common magnetic core structure that serves the functions of both transformer device and output inductor by integrating each into the common core. The transformer device has primary and secondary windings integrated into a first leg structure of the magnetic core, and the output inductor device has an output inductor winding integrated into a second leg structure of the magnetic core, the inductor winding structure for delivering output current to a load when a periodically switched input voltage is applied across the primary winding structure. The winding polarities of the transformer secondary winding structure and of the output inductor winding structure provide oppositely oriented polarities of electromotive force (EMF) to substantially reduce an output current ripple to an output load when delivering power through the transformer, through the output inductor and into the output load. A third leg structure of the common magnetic core allows magnetic flux passing through the transformer leg structure to partially magnetically couple to flux passing through the inductor leg structure, thereby allowing adjustment of the output voltage at which output current ripple is minimized.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}
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