Electricity: motive power systems – Motor-reversing – Automatic and/or with time-delay means
Patent
1991-10-07
1992-11-17
Ro, Bentsu
Electricity: motive power systems
Motor-reversing
Automatic and/or with time-delay means
318285, 318 16, 318751, H02P 736
Patent
active
051646447
ABSTRACT:
The improvement of a remotely controlled ceiling fan is achieved mainly by means of a function control IC communicating with TRIAC Q.sub.8, TRIAC Q.sub.9 and TRIAC Q.sub.10 of the speed-changing device via lines Q.sub.5, Q.sub.6 and Q.sub.7 connecting respectively with points 11, 12 and 13 of the function control IC, so as to transmit a command from the function control to the speed-changing device which in turn controls the speed of motor. The function control IC is additionally provided at point 16 thereof with a delay device, which in turn is connected to a relay via line Q.sub.11. The primary line coil of the motor communicates with the relay intended to initiate a change in the polarity of the primary line coil of motor at the time when the function control IC receives a command to put the operation of motor in reverse and the speed-changing device is halted temporarily. As soon as the command calling for the motor to operate in reverse is executed, the speed-changing device resumes operating to control the speed of the motor.
REFERENCES:
patent: 4371814 (1983-02-01), Hannas
patent: 4426615 (1984-01-01), Hannas
patent: 4465956 (1984-08-01), Fowler
patent: 4621992 (1986-11-01), Angott
patent: 4716409 (1987-12-01), Hart et al.
patent: 4719446 (1988-01-01), Hart
patent: 4818920 (1989-04-01), Jacob
patent: 4990908 (1991-02-01), Tung
patent: 5041825 (1991-08-01), Hart et al.
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