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Obtaining Steady High-Voltage Direct Current from a Thermionic Rectifier, Without a Filter


Maxstadt, Francis William (1925) Obtaining Steady High-Voltage Direct Current from a Thermionic Rectifier, Without a Filter. Master's thesis, California Institute of Technology. doi:10.7907/V4MZ-YR84.


The usual polyphase high-voltage rectifier produces a potential essentially constant out having superposed on it a "ripple" or alternating component whose amplitude on each side of the mean is from five to seven per cent of the total d-c. voltage. Condensers and reactors are used to filter the ripple out. The paper describes a special type of a-c. generator which will give the proper low-voltage wave form for rectification as a more nearly smooth direct potential. A method of manually or automatically varying the low-voltage wave form according to load demands is provided so as to keep the rectified potential steady, thus avoiding the necessity for the filter which in sets for 100,000 volts or more would be quite expensive and troublesome.

Item Type:Thesis (Master's thesis)
Subject Keywords:General Course ; Electrical Engineering
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Electrical Engineering
Minor Option:Engineering
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Millikan, Robert Andrews
Thesis Committee:
  • Unknown, Unknown
Defense Date:15 October 1924
Additional Information:Presented at the Pacific Coast Convention of the A.I.E.E., Pasadena, Cal., October 15, 1924. Published in the Journal of the A.I.E.E. ( Volume: 43 , Issue: 11 , Nov. 1924 ).
Record Number:CaltechETD:etd-06102004-134750
Persistent URL:
Related URLs:
URLURL TypeDescription as published article
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2532
Deposited By: Imported from ETD-db
Deposited On:10 Jun 2004
Last Modified:03 Oct 2019 23:18

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