Abstract: A deceleration device includes a driving device and a transmission assembly. The transmission assembly includes a driving member, a first active subassembly, a second active subassembly, a first transmission member, a second transmission member and two regulatory mechanisms. The driving member is connected to the driving device. The first transmission member connects the driving member to the first active subassembly, and is driven by the driving device, and rotates the first active subassembly. The second transmission member connects the first active subassembly to the second active subassembly, and is driven by the first active subassembly, and rotates the second active subassembly. The two regulatory mechanisms elastically resist the first transmission member and the second transmission member, respectively.

Abstract: The instant disclosure relates to a LED backlight driving module. The driving module utilizes a plurality of second power isolation transformers interconnected to each other in series and connected to a secondary winding of a first power isolation transformer in parallel to produce a plurality of second driving signals with uniform current, and driving corresponding LED light bars with uniform brightness. Optionally, a base voltage circuit can be used to provide a base voltage with negative voltage level on the other end of LED light bars, so as to lower the positive voltage level of the second driving signals. Thus, it is beneficial that the LED backlight driving module provides higher power conversion efficiency and has lower design cost.

Abstract: A Cartesian coordinate robot includes a first transmission mechanism slidably connected to a second transmission mechanism, a third transmission mechanism slidably connected to the second transmission mechanism. The first transmission mechanism includes a first guide rail, a first slider slidably connected to the first guide rail, and a first driving module driving the first slider. The second transmission mechanism includes a second guide rail perpendicular to the first guide rail, a second slider slidably connected to the second guide rail, and a second driving module driving the second slider. The third transmission mechanism includes a third guide rail perpendicular to the first guide rail and the second rail, a third slider slidably connected to the third guide rail, and a third driving module driving the third slider.

Abstract: A power supplying device includes: an output transformer including first and second output coils for generating first intermediate voltages from an input voltage; a voltage adjusting transformer including primary and secondary coils; a first rectifying-and-filtering circuit connected to the first output coil for generating a first output voltage from the first intermediate voltage obtained from the first output coil; the primary coil being connected in parallel to the first output coil, the secondary coil being connected in series to the second output coil and being coupled to the primary coil for generating a second intermediate voltage from the first intermediate voltage obtained from the first output coil; and a second rectifying-and-filtering circuit connected to the secondary coil for generating a second output voltage from a combined voltage combining the second intermediate voltage obtained from the secondary coil with the first intermediate voltage obtained from the second output coil.

Abstract: Coil frames and transformers are provided. A coil frame includes a sub-coil-frame and an extended frame. The sub-coil-frame is utilized for winding a metal coil thereon. The extended frame is attached to the sub-coil-frame. The extended frame has a hole and a protrusion. The hole of the coil frame can be connected with the protrusion of another coil frame.

Abstract: A power supply apparatus includes an open loop power switcher, a power isolation transformer, a backlight driving circuit, and a power circuit. The open loop power switcher converts a direct current (DC) power into an alternating current (AC) input voltage. The power isolation transformer is coupled to the open loop power switcher and includes a primary-side winding, a first winding, and a second winding, wherein the first and second windings are disposed at the secondary-side of the power isolation transformer, and the first winding is employed for generating a first voltage signal according to the AC input voltage. The backlight driving circuit is employed for driving a backlight module according to the first voltage signal. The power circuit is employed for receiving a second voltage signal generated from the second winding according to the AC input voltage, in order to generate an output power signal.

Abstract: A power supplying device includes: an output transformer including first and second output coils for generating first intermediate voltages from an input voltage; a voltage adjusting transformer including primary and secondary coils; a first rectifying-and-filtering circuit connected to the first output coil for generating a first output voltage from the first intermediate voltage obtained from the first output coil; the primary coil being connected in parallel to the first output coil, the secondary coil being connected in series to the second output coil and being coupled to the primary coil for generating a second intermediate voltage from the first intermediate voltage obtained from the first output coil; and a second rectifying-and-filtering circuit connected to the secondary coil for generating a second output voltage from a combined voltage combining the second intermediate voltage obtained from the secondary coil with the first intermediate voltage obtained from the second output coil.

Abstract: A jumper wire is fixed on a groove of a jumper wire holder when the first end of the jumper wire passes through a first holding hole of the jumper wire holder and the second end passes through a second holding hole of the jumper wire holder. The two positioning pins at the ends of the jumper wire holder allow the jumper wire holder for being easily installed on the PCB. The reflowing welding is available to weld the jumper wire on the jumper wire holder with the circuit on the PCB. The connectors at the ends of the jumper wire holder allow the jumper wire holder to combine in series, providing the jumper wire holder for holding longer jumper wire.

Abstract: A multi-lamp driving system includes a driving apparatus and a current balancer having detection nodes. The protection apparatus includes at least a detection unit and a determining unit. The detection unit includes first impedance devices and a second impedance device. A first end of each first impedance device is coupled with the corresponding detection node. The second impedance device is coupled with a second end of each first impedance device. The cross-voltage between a first end and a second end of the second impedance device is relative to the sum of the voltage level of the detection nodes coupled with the first impedance devices. The determining unit coupled with the second impedance device of the detection unit outputs a protection signal to disable the driving apparatus according to the cross-voltage between the first and second ends of the second impedance device when at least one of the lamps malfunctions.

Abstract: Coil frames and transformers are provided. A coil frame includes a sub-coil-frame and an extended frame. The sub-coil-frame is utilized for winding a metal coil thereon. The extended frame is attached to the sub-coil-frame. The extended frame has a hole and a protrusion. The hole of the coil frame can be connected with the protrusion of another coil frame.

Abstract: A hub clutch device for a bicycle includes a threaded shaft, a hub, a positioning sleeve, a movable sleeve, an elastic member, a fixing seat, and a plurality of urging balls. Thus, each of the urging balls is moved between a respective one of the adjusting slots of the movable sleeve and a respective one of the adjusting slots of the fixing seat to detach the fixing seat and the movable sleeve from the positioning sleeve, so that when the positioning sleeve and the hub are rotated, the fixing seat is not rotated, so that the freewheel will not be rotated by the wheel when the pedal stops operating.