High performance high speed starter for an x-ray tube rotor

Details High performance high speed starter for an x-ray tube rotor High performance high speed starter for an x-ray tube rotor

1990-03-06

1992-08-18

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318794, 318254, 378109, 378131, H02P 144, H05G 134

Patent

active

051402467

ABSTRACT:
A sationary rotatable anode (42) of an x-ray tube (10) is electrically connected to a high speed starter (24). The starter (24) includes an inductive rotor (44) connected to the anode (42), a main stator winding (50) and an auxiliary stator winding (52). The rotor (44) is driven by a power drive circuit (26) which is part of the starter (24). A main capacitor (64) is placed in series with the main winding for reducing its inductance. An auxiliary capacitor (66) is placed in series with the auxiliary winding for maintaining a selective impedence. A control circuit (90) is included in the starter (24) to control the main current and auxiliary current so that as the rotation of the rotor (44) increases, the control circuit (90) lowers the frequency of the main current and the auxiliary current passing to the main and auxiliary windings.

REFERENCES:
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patent: 4775992 (1988-10-01), Resnick et al.
patent: 4829551 (1989-05-01), Resnick et al.
patent: 4959573 (1990-09-01), Roberts
patent: 5039933 (1991-08-01), Dong

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