Method and apparatus for balancing the emission current of...

Details Method and apparatus for balancing the emission current of... Method and apparatus for balancing the emission current of...

2005-09-27

2005-09-27

Kim, Ted (Department: 3746)

Power plants

Reaction motor

Ion motor

C313S359100, C315S111810

Reexamination Certificate

active

06948305

ABSTRACT:
An apparatus and method for balancing the emission current of neutralizers in ion thruster arrays is disclosed that allows a single power processing unit (PPU) to be used to drive the array. A typical embodiment includes at least one voltage-regulated power supply, each voltage-regulated power supply for driving a common element in each of the plurality of ion thrusters, the common element in each of the plurality of ion thrusters being coupled together at a common point, and a current balance circuit for providing a substantially balanced current to each neutralizer cathode of the plurality of ion thrusters by providing a voltage to the neutralizer cathodes relative to the common point.

REFERENCES:
patent: 4733530 (1988-03-01), Beattie et al.
patent: 5269131 (1993-12-01), Brophy
patent: 5339623 (1994-08-01), Smith
patent: 5947421 (1999-09-01), Beattie et al.
patent: 5973447 (1999-10-01), Mahoney et al.
patent: 6031334 (2000-02-01), Meyer
patent: 6518693 (2003-02-01), Meyer et al.
patent: 6786035 (2004-09-01), Stickelmaier

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