Title:
MOTOR DRIVE TYPE MOVING X-RAY DEVICE
Document Type and Number:
Japanese Patent JPS60121990
Kind Code:
A
Abstract:
PURPOSE:To prevent the abnormal feeding speed by opening a motor power supplying circuit when the integral value of the energizing angle of the power supplied to a drive motor exceeds the set speed voltage. CONSTITUTION:When a switch SW1 is closed, the first relay RY1 is energized, and a power is supplied to a motor M. At this time, a voltage in response to the desired running speed by the first variable resistor VR1 is supplied to a running speed controller RSC, and an energization angle control signal is response to the voltage is applied to the base of a transistor Q. On the other hand, when the power is supplied to the motor M, an integrating capacitor C is charged through the second variable resistor VR2. Whenever the transistor Q becomes interrupted, the second relay RY2 is energized, and the charge of the capacitor C is discharged. When the stored charge of the capacitor C becomes the prescribed value or higher due to cartain malfunction, the relay RY2 is deenergized to open a main circuit.
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Inventors:
TAKISHITA AKIRA
Application Number:
JP22549283A
Publication Date:
June 29, 1985
Filing Date:
December 01, 1983
Export Citation:
Assignee:
HITACHI MEDICAL CORP
International Classes:
A61B6/00; H02P7/29; (IPC1-7): A61B6/00
Domestic Patent References:
| JPS54102513A | 1979-08-13 | |||
| JPS5646661A | 1981-04-27 |
Attorney, Agent or Firm:
Akita Aki