Boots – shoes – and leggings
Patent
1992-09-02
1994-06-14
Black, Thomas G.
Boots, shoes, and leggings
364480, 364579, 361 18, G06F 1520, G05B 2302
Patent
active
053216350
ABSTRACT:
A system (10) for controlling stabilization of a synchro (26), which is driven from a digital to synchro converter (12), which utilizes a current sensor (14) to detect the magnitude of the synchro current drive signal and through a compare and hold circuit (20) compares the magnitude of the current with a predetermined maximum current and if exceeded provides a signal to a logic control (22) which controls a current limiter (16), disposed in series with the conductors providing load current to synchro (26). Current limiter (16) operates in a non-current limiting mode, wherein load current is passed unhindered to synchro (26), and a current limiting mode wherein current limiting resistors are inserted in series with the conductors carrying drive current to synchro (26). When the commanded drive current exceeds the reference current, compare and hold circuit (20) initiates a signal to cause current limiter (16) to operate in the current limiting mode. Compare and hold circuit (20) also includes a delay circuit which keeps current limiter (16) in the current limiting mode for a short period of time after the commanded drive current falls below the reference current level. A pulse width oscillator (24) provides an input to logic control (22) which causes logic control (22) to periodically switch current limiter (16) to the unlimited current condition for short periods of time even when the compare and hold circuit (20) is providing a signal requesting the current limiting mode.
REFERENCES:
patent: 3963963 (1976-06-01), Schade, Jr.
patent: 3970897 (1976-07-01), Tamir et al.
patent: 4218647 (1980-08-01), Haas
patent: 4290000 (1981-09-01), Sun
patent: 4428016 (1984-01-01), Brasfield
patent: 4518905 (1985-05-01), Rhodes, Jr.
patent: 4785405 (1988-11-01), Hasegawa et al.
patent: 4953054 (1990-08-01), Fetzer et al.
patent: 4961033 (1990-10-01), Hirota
patent: 4977530 (1990-12-01), Cline et al.
patent: 5136459 (1992-08-01), Fararooy
Kluss Walter
Neuwirth Arieh J.
Parfomak Walter
Sears Jerome
Allied-Signal Inc.
Black Thomas G.
Massung Howard G.
Nguyen Tan Q.
LandOfFree
Synchro drive stabilization system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synchro drive stabilization system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchro drive stabilization system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1254265