Abstract: The disclosure presents a quick mountable assembly for handle, a handle assembly, and a method of mounting the same. The quick mountable assembly for handle includes a tube having a first peripheral section and a second peripheral section arranged in a circumferential direction. The second peripheral section includes convex threads compared to the surface of the first peripheral section. The assembly further includes a nut having a first inner wall section and a second inner wall section arranged in a circumferential direction. The second inner wall section has convex threads compared to the surface of the first inner wall section. The nut has a first engagement position in which the second inner wall section aligned to the first peripheral section of the tube and a second engagement position in which the second inner wall section screwed to the second peripheral section of the tube.

Abstract: Present disclosure relates to a pipe joint for quick releasable pipe connector assembly and a quick releasable pipe connector assembly. The pipe joint for quick releasable pipe connector assembly includes an annular part defining a central axis, a pair of shank parts being arranged symmetrically with respect to the central axis and each with a free end away from the annular part, an inner surfaces of the pair of shank parts being spaced from each other in a direction away from the annular part, and a buckling part being connected between the annular part and the pair of shank parts and being provided with a slot. The pair of shank parts and the buckling part are configured to be elastically deformed under an external force to approach the central axis and to automatically reset when the external force is removed.

Abstract: A double-waterway faucet structure is provided. A faucet body comprises a first water inlet passage, a second water inlet passage, and a first water outlet passage configured to be in communication with the first water inlet passage, and the first water outlet passage is connected to a pull-out head. A control valve is disposed on the faucet body and is configured to control a turning ON and OFF between the first water inlet passage and the first water outlet passage. A rotating bracket is rotatably disposed on the faucet body and comprises a second water outlet passage configured to be in communication with the second water inlet passage, and a solenoid valve is disposed on the second water inlet passage to control a turning ON and OFF of the second water outlet passage.

Abstract: An apparatus includes an isolated power converter having an input connected to an input dc power source, a first output and a second output, and a non-isolated power converter having an input connected to the second output of the isolated power converter, wherein the first output of the isolated power converter and an output of the non-isolated power converter are connected in series.

Abstract: A countertop installation assembly comprises an installation seat, a driving member, and a fastening assembly. The installation seat is positioned in the installation hole and is configured to extend to below the countertop. The installation seat comprises a receiving cavity extending along a longitudinal direction. The driving member is rotatably disposed in the installation seat. The fastening assembly is operatively coupled to the driving member, and the fastening assembly is located below the countertop and moves up and down in the receiving cavity. The driving member is rotated from above the countertop to drive the fastening assembly to move up and down in the receiving cavity so as to enable the fastening assembly to be clamped to or separated from a lower side of the countertop. The fastening assembly is driven by the driving member to move between a retracted position and an extended position.

Abstract: An apparatus includes a controller configured to generate a PWM signal for controlling a power switch of a forward converter, a bias switch and a bias capacitor connected in series and coupled to a bias winding of the forward converter, and a comparator having a first input connected to the bias capacitor, a second input connected to a predetermined reference and an output configured to generate a signal for controlling the bias switch to allow a magnetizing current from the bias winding to charge the bias capacitor when a voltage across the bias capacitor is less than the predetermined reference.

Abstract: According to one aspect, an apparatus comprising a two stage DC-DC converter is provided. The converter consists of a multilevel DC-DC converter stage cascaded with a fixed voltage ratio DC-DC converter stage. The converter is controlled so that a first stage of the converter provides an optimized output (a regulated bus voltage) which serves as the input to the second stage. The multilevel DC-DC converter may be the first stage and the fixed voltage ratio, unregulated DC-DC converter may be the second stage converter. Alternatively, the fixed voltage ratio, unregulated DC-DC converter may be the first stage and the multilevel DC-DC converter may be the second stage.

Abstract: Systems and methods are provided for efficiently maintaining a transaction sequence witness service to ensure that requests to read data provide consistent results across all storage nodes in a distributed system. When a storage node receives a request for a data object, the node may obtain—from transaction sequence witness service—the latest sequence number associated with the object. If the sequence number indicates the object has been modified in the period of time since the currently stored version was stored, the node can obtain the current version from persistent storage.

Abstract: Systems and methods are provided for managing data partitions in a distributed storage system and, in particular, the routing data used by the distributed storage system to route requests to the proper caching layers, persistent storage nodes, etc. Data items may be managed in a multi-tier configuration in which they are grouped into different partitions based on their key prefixes, and partitions are grouped into different cells based on key ranges. When partitions are moved from cell-to-cell, or when cells are split, the routing data is changed accordingly. In order to ensure that the correct routing data is used throughout the distributed storage system, a change to routing data may be accompanied by a special barrier record being written to the transaction log of affected partitions.

Abstract: A kitchen faucet comprises a faucet body, a control valve, a solenoid valve, and a pull-out head. The faucet body comprises a first water inlet pipe, a second water inlet pipe, a first water outlet pipe configured to be in communication with the first water inlet pipe, and a second water outlet pipe configured to be in communication with the second water inlet pipe. The pull-out head is pluggably matched with the faucet body and is in communication with the first water outlet pipe. The control valve is disposed on the faucet body and is configured to control the first water outlet pipe to be opened and closed, and the solenoid valve is disposed on the second water inlet pipe to control the second water outlet pipe to be opened and closed.

Abstract: A double-waterway faucet structure is provided. A faucet body comprises a first water inlet passage, a second water inlet passage, and a first water outlet passage configured to be in communication with the first water inlet passage, and the first water outlet passage is connected to a pull-out head. A control valve is disposed on the faucet body and is configured to control a turning ON and OFF between the first water inlet passage and the first water outlet passage. A rotating bracket is rotatably disposed on the faucet body and comprises a second water outlet passage configured to be in communication with the second water inlet passage, and a solenoid valve is disposed on the second water inlet passage to control a turning ON and OFF of the second water outlet passage.

Abstract: An apparatus includes a controller configured to generate a PWM signal for controlling a power switch of a forward converter, a bias switch and a bias capacitor connected in series and coupled to a bias winding of the forward converter, and a comparator having a first input connected to the bias capacitor, a second input connected to a predetermined reference and an output configured to generate a signal for controlling the bias switch to allow a magnetizing current from the bias winding to charge the bias capacitor when a voltage across the bias capacitor is less than the predetermined reference.

Abstract: The present disclosure discloses a pull-out faucet. A pull-out flexible hose is a tube-in-tube structure and comprises a first water outlet passage and a second water outlet passage. Each of a water-passing passage, a second water inlet passage, and the pull-out flexible hose is connected to a water-dividing seat so that the first water outlet passage is in communication with the water-passing passage and the second water outlet passage is in communication with the second water inlet passage. A pull-out head is connected to a second end of the pull-out flexible hose and comprises a first water outlet and a second water outlet. The first water outlet is in communication with the first water outlet passage, and the second water outlet is in communication with the second water outlet passage.

Abstract: The present invention relates to the technical field of fluid switches, and more particularly to an bathtub faucet, comprising a housing (10), a first valve (11) which is disposed in the housing in the radial direction of the housing (10) and configured for switching on or switching off the flow of the fluid towards the outlet (100); a first base (12) which is disposed in the housing in the axial direction of the housing (10) and configured for diverting the fluid therethrough, and the first base comprises: first fluid guiding ports (120) disposed along the radial direction of the first base (12) and second fluid guiding ports (121) disposed at two ends of the first base (12) along its axial direction and are respectively communicated with the first fluid guiding port (120), and the first valve (11) is configured to sealingly engage to the first base (12) and communicated with the first fluid guiding ports (120), so that the fluid is controlled by the first valve (11) to be communicated with the second fluid

Abstract: A power conversion system includes a first power conversion port including a three-level power factor correction device and a primary power conversion circuit, a second power conversion port including a three-level rectifier and a third power conversion port including a rectifier, the first power conversion port, the second power conversion port and the third power conversion port magnetically coupled to each other through a transformer.

Abstract: An apparatus includes a pulse-width modulation (PWM) generator configured to generate a PWM signal for controlling a power switch of a power converter, a bias switch and a bias capacitor connected in series and coupled to a magnetic winding of the power converter and a comparator having a first input connected to the bias capacitor, a second input connected to a predetermined reference and an output configured to generate a signal for controlling the bias switch to allow a magnetizing current from the magnetic winding to charge the bias capacitor when a voltage across the bias capacitor is less than the predetermined reference.