X-ray tube current control with constant loop gain

Details X-ray tube current control with constant loop gain X-ray tube current control with constant loop gain

1989-07-10

1990-05-29

Howell, Janice A.

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

378109, 378114, H05G 134

Patent

active

049301462

ABSTRACT:
The tube current in an X-ray tube is controlled by a closed loop control circuit in which a tube current feedback signal is used to control X-ray tube filament current. The gain of the feedback loop is maintained substantially constant over a wide range of tube currents by inserting a signal proportional to the reciprocal of the tube current command.

REFERENCES:
patent: 4187442 (1980-02-01), Huechen et al.
patent: 4253048 (1981-02-01), Osako
patent: 4322625 (1982-03-01), Daniels et al.
patent: 4477868 (1984-10-01), Steigerwald
patent: 4504895 (1985-03-01), Steigerwald
patent: 4596029 (1986-06-01), Manneco et al.
patent: 4775992 (1988-10-01), Resnick et al.
patent: 4809311 (1989-02-01), Arai et al.

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