Abstract: A movable lift in accordance with the present invention has a frame with a connecting base, a telescoping tube mounted on the connecting base, a driving tool attached to the telescoping tube, and an elevating device mounted on the frame to drive a pallet. By having the above structure, the movable lift is operated by a user on the pallet to move, rotate the movable lift, or elevate the pallet even when the pallet is lifted high. Therefore, the movable lift is easy and convenient in operation and utility.

Abstract: A support structure of a stage contains a plurality of supports each including: a fixing post having a screwing portion in which an inner thread section is formed; an elevating stem having a stepped hole disposed on a hollow space thereof to correspond to the inner thread section of the fixing post, a stepped abutting rim fixed on an inner side of the stepped hole, and two tabs secured on a first predetermined position to be retracted in or expanded toward a second predetermined position of a stage seat; and a guiding rod having an outer thread section arranged on an outer side thereof to screw with the inner thread section of the fixing post and a non-circular rotating segment disposed on end thereof to be limited on the stepped abutting rim of the stepped hole of the elevating stem.

Abstract: A meat-pressing shaper has a base, an intermediate plate and a top plate pivotally assembled together. The intermediate plate is conveniently detachably mounted to the base and has convex surfaces at both sides to make the meat sheet be pressed evenly in efficient way. Therefore, the treatment quality of the meat sheet is improved and utility of the meat-pressing shaper becomes convenient.

Abstract: A power supply with synchronized clocks includes a transformer for transforming an AC input voltage into a DC input voltage, a delay unit for delaying phase of a standard clock signal to generate a plurality of synchronization clock signals, a major DC-DC converter for adjusting voltage level and phase of the DC input voltage according to one of the plurality of synchronization clock signals to generate a major output voltage, and a plurality of parallel DC-DC converters each for adjusting voltage level and phase of the major output voltage according to one of the plurality of synchronization clock signals to generate a minor output voltage.

Abstract: A control device for a DC-DC converter includes a PWM controller for generating a PWM signal to a switch module of the DC-DC converter according to a feedback signal of the DC-DC converter, a logic circuit for generating a selection signal according to a magnitude of an output current of the DC-DC converter, and a multiplexer coupled to a plurality of voltages for selecting one of the plurality of voltages to be a supply voltage according to the selection signal.

Abstract: A control device for a DC-DC converter includes a PWM controller for generating a PWM signal to a switch module of the DC-DC converter according to a feedback signal of the DC-DC converter, a logic circuit for generating a selection signal according to a magnitude of an output current of the DC-DC converter, and a multiplexer coupled to a plurality of voltages for selecting one of the plurality of voltages to be a supply voltage according to the selection signal.

Abstract: A power supply with synchronized clocks includes a transformer for transforming an AC input voltage into a DC input voltage, a delay unit for delaying phase of a standard clock signal to generate a plurality of synchronization clock signals, a major DC-DC converter for adjusting voltage level and phase of the DC input voltage according to one of the plurality of synchronization clock signals to generate a major output voltage, and a plurality of parallel DC-DC converters each for adjusting voltage level and phase of the major output voltage according to one of the plurality of synchronization clock signals to generate a minor output voltage.

Abstract: A method for reducing energy loss in a DC-DC converter comprises detecting an output current of the DC-DC converter to generate a sensing signal, adjusting a frequency of an oscillation signal, comparing a reference signal and a feedback signal of the DC-DC converter to generate a comparison result, comparing the comparison result and the oscillation signal to generate a PWM signal, and determining whether an input end of the DC-DC converter is electrically connected to an output end of the DC-DC converter according to the PWM signal.

Abstract: The present invention relates to a buffer hinge. More particularly, the return spring is used to automatically open and close the door, and one end of the axis with a corresponding rotation is affixed with the buffer component with multiple convexes. The buffer component is positioned into the buffer container of the positioning component at one end of the positioning return spring. Moreover, the buffer container has multiple concaves for embedding the convexes of the buffer component. Therefore, when the angle for opening the door is larger, the return torque produced from the return spring has a greater increase. However, when the embedding number between the convexes and the concaves is relatively increased, the buffer resistance between the two is also larger. On the contrary, when the angle for closing the door is smaller, the return torque produced from the return spring has a smaller decrease.

Abstract: The present invention relates to a structure for connecting the hinge flap and the door. More particularly, the outer side of the hinge flap in the door structure has a baffle side, and the inner side of the hinge flap has multiple baffle panels. Further, the baffle side and battle panel can form a lean guide side for the door. Besides, the upper and the lower of the hinge use the baffle side or the baffle panel in any sides of the hinge flap to lean on the door. Instead, the door is embedded into the middle of the baffle side and the baffle panel. Furthermore, two axes in the upper and the lower of two hinges for pivoting can be accurately positioned in the same centerline of the axis. It does not cause the occurrence of any incline. Moreover, the door can swing smoothly because the door is affixed with the door socket. Furthermore, the hinge also can have a long working life.