Title:
MAGNETIC BEARING
Document Type and Number:
WIPO Patent Application WO/2004/076876
Kind Code:
A1
Abstract:
A control system of a magnetic bearing, comprising a microprocessor, and having a high control performance even though inexpensive A/D converters are used. An A/D<i> </i>converter 31 is of high speed type having a short conversion time. A large number of A/D converters 32 to 35 are used which are of inexpensive and low speed type having a longer conversion time than that of the A/D converter 31. A conversion signal having been subjected to A/D conversion in a short time by the high-speed A/D converter 31 is first subjected to arithmetic processing by a microprocessor 13 to find a current command value for an electromagnet 11 associated with the Z axis. During the arithmetic processing, the low-speed A/D converters 32 to 35 perform A/D conversion. When the conversion terminates, the microprocessor 13 takes in the conversion signal to perform a predetermined arithmetic processing of the conversion signal to find respective current command values for electromagnets 2A, 3A, 2B and 3B associated with the X and Y axes.
Inventors:
YAMAMOTO MASAYUKI (JP)
Application Number:
PCT/JP1996/002452
Publication Date:
September 10, 2004
Filing Date:
August 30, 1996
Export Citation:
Assignee:
YAMAMOTO MASAYUKI (JP)
International Classes:
F16C32/04; F16C39/06; G06F3/05; H03M1/12; H03M1/66; (IPC1-7): F16C32/04
Foreign References:
| JPS6225323U | 1987-02-16 | |||
| JP3071568B | ||||
| JP5315958B2 | 2013-10-16 | |||
| JPH03220917A | 1991-09-30 | |||
| JPS5124648B1 | 1976-07-26 |
Attorney, Agent or Firm:
Hayashi, Keinosuke (Sendabori Matsudo-shi, Chiba 270, JP)
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