NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A DC TransformerA component level dc transformer is described in which no alternating currents or voltages are present. It operates by combining features of a homopolar motor and a homopolar generator, both de devices, such that the output voltage of a de power supply can be stepped up (or down) with a corresponding step down (or up) in current. The basic theory for this device is developed, performance predictions are made, and the results from a small prototype are presented. Based on demonstrated technology in the literature, this de transformer should be scalable to low megawatt levels, but it is more suited to high current than high voltage applications. Significant development would be required before it could achieve the kilovolt levels needed for de power transmission.
Document ID
20130011800
Document Type
Preprint (Draft being sent to journal)
Authors
Youngquist, Robert C. (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Ihlefeld, Curtis M. (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Starr, Stanley O. (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Date Acquired
August 27, 2013
Publication Date
January 1, 2013
Subject Category
Electronics and Electrical Engineering
Report/Patent Number
KSC-2013-045
KSC-13776
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

NameType 20130011800.pdf STI