Title:
GRAVITY COMPENSATING BIAS CIRCUIT OF MAGNETIC LEVITATION CONVEYER
Document Type and Number:
Japanese Patent JPH03230704
Kind Code:
A
Abstract:
PURPOSE: To improve the control accuracy by a method wherein an operating means which adds bias data outputted from a ROM to compensation data outputted from a compensating RAM to obtain a bias current command at every address is provided.
CONSTITUTION: Levitation commands Xvir(k) and data DXvi(k) and DXvi(k) are inputted and addresses are obtained and a control compensator 1 is operated. An integrator 2 is operated if necessary. Bias data VB1 are added to error data VC1 by an adder 12 and bias current commands V1 are outputted. In a steady state, the bias data VB1 are stored in the addresses of of a RAM 5 through a low-pass filter 7 and the data are added to the data in the respective addresses of a RAM 6.
More Like This:
Inventors:
OGURO RYUICHI
Application Number:
JP2223090A
Publication Date:
October 14, 1991
Filing Date:
February 02, 1990
Export Citation:
Assignee:
YASKAWA DENKI SEISAKUSHO KK
International Classes:
B60L13/06; (IPC1-7): B60L13/06
Attorney, Agent or Firm:
Wakabayashi Tadashi