Abstract: A switched-capacitor DC-DC voltage converter and a control method thereof. The switched-capacitor DC-DC voltage converter comprises at least one switch array, comprising a capacitor and at least one switch group, wherein the switch group comprises a plurality of power switches connected to one another in parallel, and one end of the capacitor is electrically connected to the switch group; and a control circuit, converting an input control signal into a control signal set, and outputting the control signal set to the switch group, and the control signal set comprises a plurality of control signals with phase delayed sequentially and the duty cycle reduced sequentially.

Abstract: A switched-capacitor DC-DC voltage converter and a control method thereof. The switched-capacitor DC-DC voltage converter comprises at least one switch array, comprising a capacitor and at least one switch group, wherein the switch group comprises a plurality of power switches connected to one another in parallel, and one end of the capacitor is electrically connected to the switch group; and a control circuit, converting an input control signal into a control signal set, and outputting the control signal set to the switch group, and the control signal set comprises a plurality of control signals with phase delayed sequentially and the duty cycle reduced sequentially.

Abstract: Embodiments of racks are assembled on floating devices to secure mobile devices, foldable sunshades and foldable tents. A rack is composed of rack poles, pole holders, a hub, a cup lock, a pipe connector or a hub bottom screw. The pole holders are fixed around a floating device. The pole top ends may be inserted into the receptacles of a hub. A cup lock may cover the hub to lock the pole top ends in the receptacles. A pipe connector may connect to a hub with its top screw and connect to a mobile device holder or a pouch with its bottom end. Embodiments of foldable sunshades may be secured on the rack with elastic straps and hooks. Embodiments of foldable tents with a bottom hook-side belt of hook-and-loop may bind with a loop-side belt of hook-and-loop fixed on an inflatable raft or boat or on a low-profile hard-hull boat.

Abstract: A fluid pourover device for brewing a beverage is adapted to deliver a fluid, and includes a driving unit defining a vertical rotating axis, a transmitting shaft extending along a transmitting axis inclined relative to the rotating axis and coupled with the driving unit to be rotated about the rotating axis, a fluid delivering member connected and rotated with the transmitting shaft and having a nozzle assembly to deliver the fluid in a direction of the transmitting axis for forming an inclined fluid delivering path during rotation.

Abstract: A fluid pourover device for brewing a beverage is adapted to deliver a fluid, and includes a driving unit defining a vertical rotating axis, a transmitting shaft extending along a transmitting axis inclined relative to the rotating axis and coupled with the driving unit to be rotated about the rotating axis, a fluid delivering member connected and rotated with the transmitting shaft and having a nozzle assembly to deliver the fluid in a direction of the transmitting axis for forming an inclined fluid delivering path during rotation.

Abstract: A coffee machine includes a brewing device including a steam spout, a milk box having a box body that is coupled removably to the brewing device, and that has a top surface formed with a steam inlet portion that is disposed below the steam spout, and an operating device including a driving unit and a linking member that is pivotally connected between the driving unit and the steam spout. The driving unit is rotatable to move the steam spout downwardly to an engaging position, where the steam spout engages the steam inlet portion, and is reversely rotatable to move the steam spout upwardly to a disengaging position, where the steam spout is disengaged from the steam inlet portion.

Abstract: A coffee machine includes: a brewing device operable to generate steam, and including a steam spout that is movable upwardly and downwardly and that is used to deliver the steam generated by the brewing device; and a box including a box body configured for containing a liquid to be frothed, and a steam inlet portion disposed on the box body. The box body is placed on the brewing device such that the steam inlet portion is disposed below the steam spout to permit entry of the steam exiting the steam spout into the box. The steam spout is movable between an engaging position, where the steam spout engages the steam inlet portion, and a disengaging position, where the steam spout is disengaged from the steam inlet portion.

Abstract: A linear actuator includes a sleeve, a spindle rotatable in both directions, a threaded threaded nut driving a piston rod, and a motor capable of driving the spindle through a transmission, a self-braking unit being arranged in the transmission to stop the actuator whenever the power is been shut off. All axis force will be blocked outside the sleeve, and thus transmission can transmit torque smoothly. Transmission is designed as a coupling that makes good flexibility to assembly. Parts are circular design to make.

Abstract: A recordable optical recording medium, particularly a recordable high-density optical recording medium is disclosed. The optical recording medium comprises a substrate and a recording layer formed on said substrate, wherein said recording layer contains at least one laser beam absorbing dyes of formula (I): wherein Q is phenyl or naphthyl substituted by C1-4alkoxy; R1 and R2, independently of each other, are C1-8alkyl; Y is hydrogen or C1-4alkoxy; and X− is an anion.

Abstract: A recordable optical recording medium, particularly a recordable high-density optical recording medium is disclosed.