Electricity: motive power systems – Positional servo systems – Limit or end-stop control
Patent
1988-05-05
1989-09-05
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
Limit or end-stop control
318467, 318254, 318373, G05G 500
Patent
active
048642118
ABSTRACT:
A motor drive control that permits a DC electric motor to be rapidly driven and accurately stopped at predetermined stop positions is disclosed. An indexer (V) generates a deceleration point signal at a deceleration point that occurs before a predetermined stop point of load (VI) and a stop point signal at the stop point corresponding to a predetermined destination of the load (VI). A rotational direction detector (III) detects the rotational direction of the motor (IV) as the motor (IV) passes the stop point and produces a rotational direction signal representing the rotational direction of the motor (IV). A rotation control circuit (I) generates a drive signal in response to movement and movement direction signals; a deceleration direction signal in response to the deceleration point signal; an inhibit signal in response to the stop point signal; and a decelerated drive signal representing a reverse rotational direction of the motor (IV). A motor drive circuit (II) produces a drive current having a different amplitude and direction relative to the movement direction signal and the drive signal. The motor drive circuit (II) stops producing the drive current in response to the inhibit signal.
REFERENCES:
patent: 4162435 (1979-07-01), Wright
patent: 4184107 (1980-01-01), Turini et al.
patent: 4629949 (1986-12-01), Senno
patent: 4633154 (1986-12-01), Maeda
Bergmann Saul M.
Duplo Seizo Kabushiki Kaisa
Shoop Jr. William M.
LandOfFree
Drive control for DC electric motor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drive control for DC electric motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive control for DC electric motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-245604