Abstract: The invention discloses a backlight apparatus. The backlight apparatus includes a power source, a lamp, a balance transformer, a detecting circuit, a judging module, and a controlling module. The balance transformer includes a primary winding electrically connected to the power source and a secondary winding corresponding to the primary winding and electrically connected to the lamp. The detecting circuit is used for detecting a current generated by the secondary winding and generating a first voltage according to the current. The judging module is used for judging whether the value of the first voltage is smaller than a default value. The controlling module is used for controlling the power source according to a judgment made by the judging module.

Abstract: The invention discloses a backlight apparatus. The backlight apparatus includes a power source, a lamp, a balance transformer, a detecting circuit, a judging module, and a controlling module. The balance transformer includes a primary winding electrically connected to the power source and a secondary winding corresponding to the primary winding and electrically connected to the lamp. The detecting circuit is used for detecting a current generated by the secondary winding and generating a first voltage according to the current. The judging module is used for judging whether the value of the first voltage is smaller than a default value. The controlling module is used for controlling the power source according to a judgment made by the judging module.

Abstract: The invention discloses a multi-lamp backlight apparatus. The multi-lamp backlight apparatus includes a first lamp, a second lamp, a controlling unit, a resonating unit, and a balance transformer. The controlling unit is used for generating a controlling signal. The resonating unit is used for converting the controlling signal into a resonating signal. The balance transformer includes a primary winding, a first secondary winding, and a second secondary winding. The primary winding is used for receiving the resonating signal. The first secondary winding is corresponding to the primary winding and coupled to the first lamp. The second secondary winding is corresponding to the primary winding and coupled to the second lamp.

Abstract: A spinning top includes a driving device and a series of tops. The driving device includes a motor driving a clutch, and each top has a seat for temporary engagement with the clutch which drives the top to spin. The driving device comprises a control switch which links the power to the motor and the linking mechanisms to the clutch. By adjusting the control switch, the motor is started, which drives the clutch to spin. Pressing the control switch further disengages the top from the clutch so that the top will spin itself. Further, the top portion of the top is shaped with a concave portion for receiving another top stacked thereon, by engaging the concave portion with the seat of another top.

Abstract: The present invention provides an actuating assembly of a musical box, in which a cluster gear is driven by a motor through a worm gear set, and the cluster gear employs a master gear connecting a driving gear in center portion, and mesh with epicyclical gears, coordinating with different linkages and the swing links with spin axle on the epicyclical gears, the dolls secured to the top portion of the spin axle can swivel and swing sidelong driving by the motor. A sensor is utilized to control the music in a standby or in a replay states.

Abstract: An improved music box mechanism is provided which includes a stock, a control circuit board, a locating cap piece, a ring shell and a lid. The control circuit board is connected to an inductor to make the device replay a musical tune at a constant speed, and is capable of playing music continuously.