The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 14, 2009

Filed:

Dec. 20, 2006
Applicants:

Taichiro Tamida, Chiyoda-ku, JP;

Takafumi Nakagawa, Chiyoda-ku, JP;

Ikuro Suga, Chiyoda-ku, JP;

Hiroyuki Osuga, Chiyoda-ku, JP;

Toshiyuki Ozaki, Chiyoda-ku, JP;

Inventors:

Taichiro Tamida, Chiyoda-ku, JP;

Takafumi Nakagawa, Chiyoda-ku, JP;

Ikuro Suga, Chiyoda-ku, JP;

Hiroyuki Osuga, Chiyoda-ku, JP;

Toshiyuki Ozaki, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 27/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A power supply apparatus for controlling a Hall thruster which is an ion accelerator includes an anode power supply for applying anode voltage Va to an anode of the Hall thruster, inner and outer coil power supplies for supplying coil current Ic to each of inner and outer magnetic field generating coils of the Hall thruster, a gas flow rate controller for regulating gas flow rate Q via a gas flow rate regulator, and a control unit. The control unit adjusts the magnitude of ion acceleration by the Hall thruster by controlling the anode voltage Va, the gas flow rate Q and the coil current Ic according to a quantity expressed by a function related to the anode voltage Va and the coil current Ic.


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