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Title: Power converter using near-load output capacitance, direct inductor contact, and/or remote current sense

Abstract

An apparatus includes a first circuit board including first components including a load, and a second circuit board including second components including switching power devices and an output inductor. Ground and output voltage contacts between the circuit boards are made through soldered or connectorized interfaces. Certain components on the first circuit board and certain components, including the output inductor, on the second circuit board act as a DC-DC voltage converter for the load. An output capacitance for the conversion is on the first circuit board with no board-to-board interface between the output capacitance and the load. The inductance of the board-to-board interface functions as part of the output inductor's inductance and not as a parasitic inductance. Sense components for sensing current through the output inductor are located on the first circuit board. Parasitic inductance of the board-to-board interface has less effect on a sense signal provided to a controller.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1410510
Patent Number(s):
9831783
Application Number:
14/983,700
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
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DOE Contract Number:  
B604142
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Dec 30
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 24 POWER TRANSMISSION AND DISTRIBUTION

Citation Formats

Coteus, Paul W., Ferencz, Andrew, Hall, Shawn A., Takken, Todd E., Tian, Shurong, and Zhang, Xin. Power converter using near-load output capacitance, direct inductor contact, and/or remote current sense. United States: N. p., 2017. Web.
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Coteus, Paul W., Ferencz, Andrew, Hall, Shawn A., Takken, Todd E., Tian, Shurong, & Zhang, Xin. Power converter using near-load output capacitance, direct inductor contact, and/or remote current sense. United States.
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Coteus, Paul W., Ferencz, Andrew, Hall, Shawn A., Takken, Todd E., Tian, Shurong, and Zhang, Xin. Tue . "Power converter using near-load output capacitance, direct inductor contact, and/or remote current sense". United States. https://www.osti.gov/servlets/purl/1410510.
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@article{osti_1410510,
title = {Power converter using near-load output capacitance, direct inductor contact, and/or remote current sense},
author = {Coteus, Paul W. and Ferencz, Andrew and Hall, Shawn A. and Takken, Todd E. and Tian, Shurong and Zhang, Xin},
abstractNote = {An apparatus includes a first circuit board including first components including a load, and a second circuit board including second components including switching power devices and an output inductor. Ground and output voltage contacts between the circuit boards are made through soldered or connectorized interfaces. Certain components on the first circuit board and certain components, including the output inductor, on the second circuit board act as a DC-DC voltage converter for the load. An output capacitance for the conversion is on the first circuit board with no board-to-board interface between the output capacitance and the load. The inductance of the board-to-board interface functions as part of the output inductor's inductance and not as a parasitic inductance. Sense components for sensing current through the output inductor are located on the first circuit board. Parasitic inductance of the board-to-board interface has less effect on a sense signal provided to a controller.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {11}
}
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Works referenced in this record:

Switching Loss Analysis Considering Parasitic Loop Inductance With Current Source Drivers for Buck Converters
journal, July 2011

Parasitic inductance effect on switching losses for a high frequency Dc-Dc converter
conference, February 2008

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