Motion control method and apparatus for motorized window blinds

Details Motion control method and apparatus for motorized window blinds Motion control method and apparatus for motorized window blinds

1991-01-31

1992-12-08

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

Movement, position, or limit-of-travel

318266, 318286, H02P 500

Patent

active

051701081

ABSTRACT:
A motor controller for reversibly driving a member to be driven along a predetermined path of travel is capable of sensing the speed of the member to be driven and to compare with a predetermined speed level and to adjust the motor drive until the rate of advancement of the driven member corresponds with the predetermined speed level. The motor drive means is completely deactivated if the actual speed should not reach a predetermined start-up threshold within a selected time interval after the motor is initially turned on or should drop beneath the stay-on threshold level which is set beneath the desired speed. The motor drive can also be regulated to run at different reduced or normal speed settings depending upon its intended application.

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