Abstract: A driving apparatus for a DC brushless motor of a ceiling fan is provided. By setting at least one coder and one sensor outside the DC brushless motor, the driving apparatus can sense the position of magnetic poles of the motor for driving the motor. Meanwhile, a controller set with the motor stores the rotation speed of the motor before being turned off by detecting the turn-off time of a turn-on/off signal.

Abstract: A signal transmission apparatus of a DC brushless motor for a ceiling fan is provided. The signal transmission apparatus comprises a transmitting line. The transmitting line is configured to transmit processed output signals of a plurality of electromagnetic sensors, in which usage of transmission lines is reduced. The output signals of the electromagnetic sensors represent the operation of the magnetic poles of the DC brushless motor.

Abstract: A driving system for a garage door includes a track having an end fixed on an inside of a wall and has an open side that faces upward. A driving assembly is movably received in the track and driven by a motor. The driving assembly includes a connection member to which two ends of a power transferring member are connected. A U-shaped member is movably engaged with the track from an underside of the track and two sides of the U-shaped member are connected to the driving assembly. A link is pivotably connected between the U-shaped member and the garage door. The power transferring member reeves a gear which is rotatably connected to the track and the motor has a driving shaft which is conveniently extended through an opening of the track and engaged with an engaging hole of the gear.

Abstract: A direction control device for a ceiling fan has a direction control circuit arranged in a switch box of the ceiling fan and a remote receiver placed in a place exterior of the ceiling fan. Conducting wires are electrically connected between the direction control circuit and a set of connectors retained inside the switch box. With the aforementioned arrangement, control signals received by the remote control are sent to the direction control circuit through said wires and connectors to determine the rotation direction of the ceiling fan. Further, since the direction control circuit is placed inside the switch box of the ceiling fan, the installing process of the direction control device is simple.

Abstract: A separation device of an electronic ballast body and a fixing seat includes a body, an electronic ballast, a socket, a fixing seat, and two safety locking members. The body has an inner wall formed with a receiving chamber for receiving the electronic ballast and the socket which is rested on the electronic ballast. The fixing seat has one end locked on a closed end of the body. Each of the two safety locking members is mounted and locked between the body and the fixing seat, so that the body and the fixing seat may be locked with each other, thereby integrally combining the body with the fixing seat. Thus, the separation device may be assembled and disassembled easily and conveniently, thereby facilitating replacement and maintenance of the separation device of the present invention.

Abstract: A separation device of a lamp holder and a fixing seat includes a lamp holder, a lamp connecting seat, an electrode, a fixing seat, a cover plate, a fixing bracket, and two safety locking members. When the lamp holder registers the fixing seat, the lamp holder is rotated relative to the fixing seat, so that the lamp holder is integrally combined with the fixing seat. Thus, the separation device is assembled and disassembled easily and conveniently. In addition, the lamp can be inserted into the lamp connecting seat only when each of the two safety locking members is exactly locked on the lamp holder and the fixing seat, thereby forming a safety locking effect.

Abstract: A direction control device for a ceiling fan is disclosed, which has a remote receiver arranged inside a canopy of the ceiling fan and a direction control circuit unit arranged in a switch box of the ceiling fan. The conducting wires of the remote receiver and the connection lines of the fan motor are both electrically connected to the direction control circuit unit via a hanger rod of the ceiling fan without being redirected and the rotation direction of the ceiling fan can be remotely controlled.

Abstract: The present invention provides a speed control device for a ceiling fan which comprises a MOSFET, a signal generator and an overload protector. The MOSFET is connected to the ceiling fan and power source via a bridge rectifier for controlling power supplied to said ceiling fan. The signal generator provides a control signal to the MOSFET, wherein the control signal is a cyclic signal whose voltage level is progressively increased and then decreased when it reaches a predetermined level whereby the MOSFET is cyclically and progressively turned on and turned off. The overload protector is connected between the drain and gate of said MOSFET for detecting an abnormally large current flow through said MOSFET to cut off said MOSFET thereby preventing the ceiling fan from possible damage.

Abstract: Disclosed is a power supplying circuit for a ceiling fan including a protecting unit, a power supplying unit and a rectifying unit. An operation of the power supplying circuit is divided into four cases which are a negative half cycle loop, a positive half cycle loop, a control loop and a protection loop. Using this power supplying circuit, a stable DC voltage output can be achieved for both a control purpose and a detection purpose when a load being in a series connection with the power supplying circuit varies from a low load to a high load.