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Patent Searching and Data


Title:
CONTROL DEVICE FOR METER
Document Type and Number:
Japanese Patent JPH0618294
Kind Code:
A
Abstract:

PURPOSE: To obtain a control device of a meter which eliminates shocks of a stopper or the like when an indicator is returned to zero and reduces negative influences to a driving system including the indicator and a step motor.

CONSTITUTION: When an indicating value of a meter represents an instruction for an indicator 4 to return to zero, a control circuit 11 outputs an OFF signal to a switch circuit 8. In consequence of that, the switch circuit 8 is turned off, whereby a resistor 7 becomes connected in series to a power feed line 6, thus decreasing a driving current fed to a step motor 1. Accordingly, the driving torque of the step motor 1 when the indicator 4 is returned to zero, is reduced. At the same time, the rotating force of the indicator 4 is decreased, and shocks to a stopper 5, etc., are eased.


Inventors:
MIZUTANI TAKASHI
Application Number:
JP17446992A
Publication Date:
January 25, 1994
Filing Date:
July 01, 1992
Export Citation:
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Assignee:
NIPPON DENSO CO
International Classes:
G01D11/00; G01D13/22; (IPC1-7): G01D11/00
Attorney, Agent or Firm:
Kentaro Iida