Title:
磁気浮上型ポンプおよびその制御方法
Document Type and Number:
Japanese Patent JP4651157
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for controlling a magnetic levitation pump which can suppress variation of a rotational speed when a constant rotational speed mode is switched to a constant motor current mode. SOLUTION: When a switching circuit SW is switched to a motor command side by a mode switching signal, a power amplifier 80 rotates a motor section 40 in a constant rotational speed mode. When the switching circuit SW is switched to a constant motor current mode, a motor command is approximately linearized by a mode switching regulating circuit 60. The power amplifier 80 rotates the motor section 40 based on the linearized voltage.
Inventors:
Takami Ozaki
Application Number:
JP2000184411A
Publication Date:
March 16, 2011
Filing Date:
June 20, 2000
Export Citation:
Assignee:
ntn corporation
Terumo Corporation
Terumo Corporation
International Classes:
F04D13/02; A61M1/10; F04D15/00; F04D7/02; F04D29/04; F04D29/041; F04D29/046; F04D29/048; H02P7/00; H02P29/00
Domestic Patent References:
| JP10085322A | ||||
| JP11076394A | ||||
| JP63095874A | ||||
| JP60245486A | ||||
| JP61227691A | ||||
| JP9056812A |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Hiroyuki Yoshida
Hidehiko Ito
Toshio Morita
Hiroyuki Yoshida
Hidehiko Ito