US5231341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Limiter circuit of servo motor control apparatus
Assignee: Samsung Electronics Co Ltd
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Filing: 1992-09-14
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Granted: 1993-07-27
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Expires: 2012-09-14
Abstract
Abstract A limiter circuit of a servo motor control apparatus can perform limiter control in the right direction or reverse, direction or in both directions of a motor therefore. There is provided a microprocessor for outputting a switching signal by receiving rotating direction data from a motor rotating direction setter, and a converter for digital to analog converting the instantaneous limit value outputted from the microprocessor. Also included is a switching portion for selecting the output of instantaneous limit value outputted from the converter, and a limiter for limiting the amplitude the control voltage outputted the PID controller to within the scope of the instantaneous limit value selected according to the switching operation of the switching portion.
Inventors
- 👤 Lim Sang-Gwon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:01
CPC Classifications
G; G05; G05B; G05B5/00; G05B5/01; G05B11/00; G05B11/01; G05B11/36; G05B11/42; H; H02; H02P; H02P23/00; H02P23/24; H02P7/00; H02P7/03; H02P7/05
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
126 words
A limiter circuit for performing rotary control for a motor, said circuit comprising: means for setting rotational direction data for a motor by manual operation; means for determining a displacement deviation of said motor; processing means for receiving said rotational direction data and generating a switching signal and for receiving said displacement deviation and calculating an instantaneous limit value for said motor; switching means for receiving said switching signal and said instantaneous limit value, and for selecting a limiting signal based on said switching signal, said limiting signal being either said instantaneous limit value or an inverted version of said instantaneous limit value; and means, connected to said switching means, for limiting a control signal for controlling rotation of said motor according to said limiting signal.
Claim 2
Dependent Claim
126 words
A limiter circuit for performing rotary control for a motor, said circuit comprising: means for setting rotational direction data for a motor by manual operation; means for determining a displacement deviation of said motor; processing means for receiving said rotational direction data and generating a switching signal and for receiving said displacement deviation and calculating an instantaneous limit value for said motor; switching means for receiving said switching signal and said instantaneous limit value, and for selecting a limiting signal based on said switching signal, said limiting signal being either said instantaneous limit value or an inverted version of said instantaneous limit value; and means, connected to said switching means, for limiting a control signal for controlling rotation of said motor according to said limiting signal.
Claim 3
Dependent Claim
16 words
The limiter circuit of claim 1 further including a PID controller for generating said control signal.
Claim 4
Dependent Claim
27 words
The limiter circuit of claim 2 further including means for setting a maximum and a minimum value for said control signal prior to operation of said motor.
Claim 5
Dependent Claim
38 words
The limiter circuit of claim 1 further including means for converting said switching signal generated by said processing means from digital form to analog form and transmitting an analog form of said switching signal to said switching means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-26 | 1997-01-25 | 1997-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-26 | 2001-01-25 | 2001-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-26 | 2005-01-25 | 2005-07-27 | $7700.00 | Window Closed / Lapsed |