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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
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.
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.
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.
@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 = {Tue Nov 28 00:00:00 EST 2017},
month = {Tue Nov 28 00:00:00 EST 2017}
}

Works referenced in this record:

Circuit module
patent, August 2004


Power-enabled connector assembly and method of manufacturing
patent-application, January 2007


Module incorporating a capacitor, method for manufacturing the same, and capacitor used therefor
patent, January 2008


Integrated electronic device for controlling light emitting diodes
patent, November 2013


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


Power converter comprising a controller and a power component mounted on separate circuit boards
patent-application, April 2007


Parasitic Inductance Reduction For Multilayered Board Layout Designs With Semiconductor Devices
patent-application, July 2014


Power Converter Unit
patent-application, January 2009


DC-DC Converter Vertically Integrated With Load Inductor Structured As Heat Sink
patent-application, September 2014


Electronic Component, Arrangement and Method
patent-application, July 2015


Cold-cathode tube lighting device for use in a plurality of cold-cathode tubes lit by one low-impedance power source
patent-application, April 2007


Interconnecting Board and Three-Dimensional Wiring Structure Using it
patent-application, June 2008


Assembled Circuit And Electronic Component
patent-application, July 2009


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


Single-chip common-drain JFET device and its applications
patent, November 2010


Stacked Die Power Converter
patent-application, March 2014


Vertically Stacked Power FETS and Synchronous Buck Converter Having Low On-Resistance
patent-application, March 2014


Composite module
patent, June 2013


Electronic Semiconductor Device With Integrated Inductor, And Manufacturing Method
patent-application, March 2013


Active package for integrated circuit
patent, May 2004