Load drive control system

Details Load drive control system Load drive control system

1981-02-24

1983-07-19

Weldon, Ulysses

Electricity: motive power systems

Motor-reversing

318256, 318291, 318469, H02P 122

Patent

active

043946054

ABSTRACT:
A load drive control system for use with an automobile one-touch window glass or sunroof opening and closing system or antenna vertical movement control system includes a signal holding switching circuit responsive to an instruction signal for driving a reversible drive motor in the forward or reverse direction and also to a motor drive current detection signal and functioning to hold the forward or reverse rotation of the motor within a predetermined load range and emergency stopping the motor when the motor load current gets out of the predetermined range. It also includes a signal hold inhibiting circuit to permit a desired extent of motor rotation to be obtained according to the forward or reverse drive instruction signal.

REFERENCES:
patent: 3513374 (1970-05-01), Koment
patent: 3891909 (1975-06-01), Newson
patent: 4134051 (1979-01-01), Pelchat et al.
patent: 4138630 (1979-02-01), Graham
patent: 4220900 (1980-09-01), Mintz
patent: 4272708 (1981-01-01), Carle et al.
patent: 4328451 (1982-05-01), Barge
patent: 4338552 (1982-07-01), Pilz et al.

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