Abstract: The present disclosure relates to the field of fluid switch, and in particular, to an handle assembly and a faucet with the same, wherein the handle assembly comprises a handle including a handle rod; a handle housing which has an inner cavity and a through-hole, and the through-hole is defined by an inner wall which is formed by the handle housing extending towards the inner cavity from its one end, the through-hole is configured to be tapered at a transition position where the inner wall connects the handle housing, and the handle rod is rotatably fitted into the though-hole; a first wear-resistant member which is elastic and received in an accommodating area formed by a transition part of the through-hole and the handle rod; and a second wear-resistant member which is engaged to the handle rod and rests against the inner wall so that the handle rod and the handle housing are positioned on the same plane by suffered the limitation of the second wear-resistant member after making the handle rod and the handl

Abstract: A pull-down faucet includes a spout and a water hose movable within the spout. A spray hose connector is attached to the discharge end of the water hose. A sprayhead is in fluid communication with the spray hose connector and the water hose, and is movable between a docked position adjacent the discharge end of the spout, to an undocked position away from the spout. A magnet is secured to the interior of the spray hose connector, and a metallic element is secured near the discharge end of the spout.

Abstract: The invention refers to a panel assembly and a tap device including the panel assembly, wherein the tap device includes a valve with a valve cover, and the panel assembly includes a panel with a through hole, wherein the panel assembly further includes a positioning member passing through the through hole and can be secured to the panel, and the positioning member is movably plugged onto the valve cover in the axial direction of the valve cover.

Abstract: An apparatus comprises an isolated power converter coupled to an input dc power source, wherein the isolated power converter comprises a first switch network coupled to a first transformer winding and a second switch network coupled to a second transformer winding and a non-isolated power converter coupled to the second switch network of the isolated power converter, wherein a current flowing through the non-isolated power converter is a fraction of a current flowing through the isolated power converter.

Abstract: A method includes generating a first ramp signal for controlling a first portion of a converter, generating a second ramp signal for controlling a second portion of the converter, controlling a state of a first switch of the first portion through comparing the first ramp signal to a control signal and a state of a first switch of the second portion through comparing the second ramp signal to the control signal and determining a switching cycle of the converter through comparing a current flowing through an inductor of the converter to a threshold.

Abstract: The present disclosure relates to the field of fluid switches, and more particularly to an extractable faucet, comprising a faucet housing configured as a tubular member with a cavity; a faucet body including an extractable head and an extractable conduit, an water inlet end of the extractable head is connected to the extractable conduit; a first support received in the cavity and located in a water outlet end of the faucet housing, the extractable head is freely received in the first support and a purified water pipe is embedded detachably into the first support; a mounting seat configured to function as a water distributor and is detachably engaged with the faucet housing; a valve cartridge received in the mounting seat and is used for controlling the shut off of the extractable conduit and the purified water pipe, and separating the flow path of the tap-water and that of the purified water.

Abstract: A method includes detecting a voltage across a bulk capacitor of a power supply system, wherein the power supply system comprises a rectifier, a boost converter and a power converter, and wherein the bulk capacitor is between the boost converter and the power converter, activating the boost converter after the voltage across the bulk capacitor decreases and reaches a first voltage threshold and disabling the boost converter after the voltage across the bulk capacitor increases and reaches a second voltage threshold, wherein the second voltage threshold is greater than the first voltage threshold.

Abstract: A method comprises detecting an input voltage and an output voltage of a buck-boost converter, wherein the buck-boost converter comprises a first high-side switch and a first low-side switch connected in series across an input capacitor, a second high-side switch and a second low-side switch connected in series across an output capacitor and an inductor coupled between a common node of the first high-side switch and the first low-side switch, and a common node of the second high-side switch and the second low-side switch and configuring the buck-boost converter such that at least one of the first high-side switch and second low-side switch operates at a fixed duty cycle mode.

Abstract: A pull-down faucet includes a spout and a water hose movable within the spout. A spray hose connector is attached to the discharge end of the water hose. A sprayhead is in fluid communication with the spray hose connector and the water hose, and is movable between a docked position adjacent the discharge end of the spout, to an undocked position away from the spout. A magnet is secured to the interior of the spray hose connector, and a metallic element is secured near the discharge end of the spout.

Abstract: The present disclosure relates to a switch valve unit, a fluid switch, and a fluid switch assembly. The switch valve unit comprises a valve seat which defines a valve cavity having an open bottom end port; an at least partially axially deformable diaphragm member which is mounted in the valve cavity to divide the valve cavity into an upper cavity portion and a lower cavity portion, and provided with a first hole and a second hole spaced from each other and providing fluid communication between the upper cavity portion and the lower cavity portion; a button axially movably mounted on the valve seat; and a valve rod assembly connected to the button so as to follow the movement of the button, extending through the valve seat and into the upper cavity portion, and having a first position to seal the first hole and a second position to depart from the second first hole.

Abstract: A device comprises a gate drive bridge coupled between a bias voltage of a power converter and ground and a transformer connected to the gate drive bridge, wherein the transformer comprises a primary winding connected to two legs of the gate drive bridge respectively and a plurality of secondary windings configured to generate gate drive signals for low side switches, high side switches and secondary switches of the power converter.

Abstract: In the disclosure a fluid mixing valve for mixing a first fluid and a second fluid is provided, comprising: a housing; a balance valve module for balancing pressure between the first fluid and the second fluid, comprising a first fluid inlet, a second fluid inlet, a first fluid outlet in fluid communication with the first fluid inlet, and a second fluid outlet in fluid communication with the second fluid inlet; an adjustable valve module disposed on the balance valve module, comprising an inner casing member, flow-rate adjustment seat secured to the inner casing member, and a temperature adjustment shaft received in the inner casing member; and a mixed fluid discharging passage.

Abstract: A system comprises an input power stage coupled to a primary side of a transformer, an output power stage coupled to a secondary side of a transformer, a first common node capacitor and a common node resistor connected in series between a midpoint of the secondary side of the transformer and ground and a detector having an input connected to a common node of the first common node capacitor and the common node resistor, and an output connected to a control circuit, wherein the control circuit is configured to dynamically adjust a switching frequency of the system based upon an output of the detector.

Abstract: A method includes generating a first ramp signal for controlling a first portion of a converter, generating a second ramp signal for controlling a second portion of the converter, controlling a state of a first switch of the first portion through comparing the first ramp signal to a control signal and a state of a first switch of the second portion through comparing the second ramp signal to the control signal and determining a switching cycle of the converter through comparing a current flowing through an inductor of the converter to a threshold.

Abstract: A pull-down faucet includes a spout and a water hose movable within the spout. A spray hose connector is attached to the discharge end of the water hose. A sprayhead is in fluid communication with the spray hose connector and the water hose, and is movable between a docked position adjacent the discharge end of the spout, to an undocked position away from the spout. A magnet is secured to the interior of the spray hose connector, and a metallic element is secured near the discharge end of the spout.

Abstract: A system comprises an input power stage coupled to a primary side of a transformer, an output power stage coupled to a secondary side of a transformer, a first common node capacitor and a common node resistor connected in series between a midpoint of the secondary side of the transformer and ground and a detector having an input connected to a common node of the first common node capacitor and the common node resistor, and an output connected to a control circuit, wherein the control circuit is configured to dynamically adjust a switching frequency of the system based upon an output of the detector.

Abstract: A pull-down faucet includes a spout and a water hose movable within the spout. A spray hose connector is attached to the discharge end of the water hose. A sprayhead is in fluid communication with the spray hose connector and the water hose, and is movable between a docked position adjacent the discharge end of the spout, to an undocked position away from the spout. A magnet is secured to the interior of the spray hose connector, and a metallic element is secured near the discharge end of the spout.

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.

Abstract: In an Input-Series-Output-Parallel (ISOP)-type power converter circuit, a DC-to-DC converter has a positive input coupled to a DC power source and a negative input connected to a negative output. A plurality of capacitors are coupled in series between a positive output of the converter and a circuit ground, the negative output of the converter coupled to a common node of first and second capacitors. A half-bridge inverter network is coupled between the positive output and a circuit ground, each inverter having an input respectively coupled to the first capacitor and the second capacitor. A plurality of resonant tanks are coupled to an output of a respective one of first and second half-bridge inverters. A transformer is coupled to outputs of the plurality of resonant tanks. A rectifier circuit is coupled to a secondary winding of the transformer to provide a DC output voltage.

Abstract: A method comprises generating a first ramp signal and a second ramp signal for controlling a buck converter portion and a boost converter portion of a buck-boost converter respectively, comparing the first ramp signal and the second ramp signal to a control signal, controlling the buck converter portion using the comparing the first ramp signal to the control signal and the boost converter portion using the comparing the second ramp signal to the control signal, comparing a current flowing through the inductor to a current threshold and terminating a switching cycle based upon the comparing the current flowing through the inductor to the current threshold.