Abstract: An electrical connector comprises a printed circuit board module including a printed circuit board (PCB) and a plurality of electrical elements disposed on the PCB, the PCB includes a mating end for mating with a mating connector and a plurality of conductive paths electrically connecting with the electrical elements; wherein the PCB includes a fracture surface, and the plurality of conductive paths are exposed to the fracture surface.

Abstract: A fluttering-flame simulation device having a shell, a flame body, an external force generating device mounted in the shell, and at least one light-emitting device; the flame body is provided with a flame sheet imitating the shape of flame; the flame sheet extends out of the shell through a through hole in the shell; light of the light-emitting device is projected upon the flame sheet; a lower portion of the flame body is provided with a hollow cone; the shell is provided inside with a support member, which extends into the cone at the lower portion of the flame body to support the flame body, making the flame body still able to return to the initial vertical state after shaking around a support point under the force from the external force generating device, thus forming a tumbler-type flame body.

Abstract: In an automated molding machine for ultra small draft angle slurry molding products, a righting gear of a righting mechanism drives a turning mechanism to perform a turnover action to assist righting an ascending or descending action along a righting rack of a righting shaft synchronously. When a slurry suction die is moved up and down and/or turned over, the slurry suction die can be ascended to a designated position through the righting provided by the righting gear and the righting rack to achieve a precise closing when the slurry suction film is carried, ascended and closed with an extrusion die or descended and closed with a moving mold. Meanwhile, the extrusion die is controlled by a power cylinder to perform a descending stroke and close the mold with the slurry suction die.

Abstract: A method of making a patterned article includes: forming a shielding layer on a substrate; patterning the shielding layer and the substrate to form a cavity that extends through the shielding layer into the substrate so as to form a recess in the substrate, the recess being defined by a recess-defining surface of the substrate; forming a color layer on the recess-defining surface of the substrate so that the color layer is defined with an indentation; and removing the shielding layer after forming the color layer.

Abstract: An LED candle lamp having the humidifying and flavoring function comprising a shell, a light emitting device mounted on the shell, a control system and a power supply unit, wherein the shell is provided inside with a humidifying device that includes a water storage tank, a sealing cover, an atomizing sheet and water absorbent cotton, the water storage tank and the sealing cover forming a sealed water storage space by being screwed together, the sealing cover being provided with an accommodating chamber provided inside with the atomizing sheet, the sealing cover being provided with a mist outlet exposed to the shell, the water storage tank being fixedly provided inside with the water absorbent cotton, wherein the control system may be a PCB control panel provided with an elastic contact conductive wire.

Abstract: A charge pump circuit used for a charge pump phase-locked loop that includes a charging and discharging unit, two complementary circuit units, two operational amplifier units, an inverter unit, and a current mirror unit. The charge pump circuit resolves the matching problem of charging and discharging currents and the charge sharing problem in existing charge pump circuits. Both complementary circuit units positively and reversely compensate the charging and discharging unit to keep the charging and discharging currents of capacitors constant. Thus, the problem of the change of charging and discharging currents is resolved, the voltage linear variation of the charge pump capacitors is achieved, and the charging and discharging of the capacitors can be accurately controlled. The charge pump circuit is simple in structure, easy to integrate, high in the matching precision of the charging and discharging current sources, and suitable for low voltage and low power consumption applications.

Abstract: A dual orientation connector assembly for mating with a mating connector in two directions, including: an insulative housing defining a side wall, a printed circuit board (PCB) received in the housing, a mating member soldered on the PCB, a cable extending from an end of the insulative housing, and a magnetic component disposed in the insulative housing to provide a retaining force for retaining to the mating connector. The mating member includes a mounting portion received in the insulative housing, a mating portion extending out of the side wall of the insulative housing for mating with the mating connector, and a number of terminals mounted in the mating portion. The mating portion includes a first surface and an opposite second surface. The first surface and the second surface have the same number of the terminals.

Abstract: An LED candle lamp having the humidifying and flavoring function comprising a shell, a light emitting device mounted on the shell, a control system and a power supply unit, wherein the shell is provided inside with a humidifying device that includes a water storage tank, a sealing cover, an atomizing sheet and water absorbent cotton, the water storage tank and the sealing cover forming a sealed water storage space by being screwed together, the sealing cover being provided with an accommodating chamber provided inside with the atomizing sheet, the sealing cover being provided with a mist outlet exposed to the shell, the water storage tank being fixedly provided inside with the water absorbent cotton, wherein the control system may be a PCB control panel provided with an elastic contact conductive wire.

Abstract: A charge pump circuit used for a charge pump phase-locked loop that includes a charging and discharging unit, two complementary circuit units, two operational amplifier units, an inverter unit, and a current mirror unit. The charge pump circuit resolves the matching problem of charging and discharging currents and the charge sharing problem in existing charge pump circuits. Both complementary circuit units positively and reversely compensate the charging and discharging unit to keep the charging and discharging currents of capacitors constant. Thus, the problem of the change of charging and discharging currents is resolved, the voltage linear variation of the charge pump capacitors is achieved, and the charging and discharging of the capacitors can be accurately controlled. The charge pump circuit is simple in structure, easy to integrate, high in the matching precision of the charging and discharging current sources, and suitable for low voltage and low power consumption applications.

Abstract: In an automated molding machine for ultra small draft angle slurry molding products, a righting gear of a righting mechanism drives a turning mechanism to perform a turnover action to assist righting an ascending or descending action along a righting rack of a righting shaft synchronously. When a slurry suction die is moved up and down and/or turned over, the slurry suction die can be ascended to a designated position through the righting provided by the righting gear and righting rack to achieve a precise closing molding when the slurry suction film is carried, ascended and closed with an extrusion die or descended and closed with a moving mold. Meanwhile, the extrusion die is controlled by a power cylinder to perform a descending stroke and close mold with the slurry suction die.

Abstract: A dual orientation connector assembly for mating with a mating connector in two directions, including: an insulative housing defining a side wall, a printed circuit board (PCB) received in the housing, a mating member soldered on the PCB, a cable extending from an end of the insulative housing, and a magnetic component disposed in the insulative housing to provide a retaining force for retaining to the mating connector. The mating member includes a mounting portion received in the insulative housing, a mating portion extending out of the side wall of the insulative housing for mating with the mating connector, and a number of terminals mounted in the mating portion. The mating portion includes a first surface and an opposite second surface. The first surface and the second surface have the same number of the terminals.

Abstract: A method for synthesizing concrete polycarboxylic acid water-reducing agent at room temperature under non-stirring situation is disclosed, which comprises dissolving reactive materials, initiator, chain transfer agent and promoter into a solvent, reacting on standing at 0-50° C.; then adding neutralizing agent at the end of reaction. The method makes use of oxidation-reduction system reacting at low temperature, and can adapt to a variety of reactive material monomers. It does not need to control feeding speed or provide extra heating, does not need to stir during the reaction, and remarkably simplifies operation steps in traditional process, which makes it possible to not only produce in large scale, but also produce in small scale in concrete construction site at any moment.

Abstract: A high voltage lateral double diffused metal-oxide-semiconductor field effect transistor (LDMOS) comprises a substrate; an epitaxy layer on the substrate; a drift region on the epitaxy layer; and a drain region and a source region at two ends. At least one pair of n-type and p-type semiconductor regions is arranged alternately above the interface of the substrate and the epitaxy layer and firmly attached to a lower surface of the drifting region; the n-type and p-type semiconductor regions are firmly closed to each other and arranged to form a lateral PN junction; and the p-type semiconductor region and the drifting region form a vertical PN junction. The n-type and p-type semiconductor regions are also totally called “a reduced surface field (RESURF) layer in body”, and the LDMOS device with a RESURF layer in body effectively solves conflict between raising reverse withstand voltage and reducing forward on-resistance of the current LDMOS devices.

Abstract: A high voltage lateral double diffused metal-oxide-semiconductor field effect transistor (LDMOS) comprises a substrate; an epitaxy layer on the substrate; a drift region on the epitaxy layer; and a drain region and a source region at two ends. At least one pair of n-type and p-type semiconductor regions is arranged alternately above the interface of the substrate and the epitaxy layer and firmly attached to a lower surface of the drifting region; the n-type and p-type semiconductor regions are firmly closed to each other and arranged to form a lateral PN junction; and the p-type semiconductor region and the drifting region form a vertical PN junction. The n-type and p-type semiconductor regions are also totally called “a reduced surface field (RESURF) layer in body”, and the LDMOS device with a RESURF layer in body effectively solves conflict between raising reverse withstand voltage and reducing forward on-resistance of the current LDMOS devices.

Abstract: An input/output module for a building automation system includes a mounting plate, a circuit board, and a cover. The mounting plate has at least two fastener receptacles (24-30) positioned to align with fastener receptacles of a standard electrical junction box (90). The mounting plate further includes at least two openings, each opening sized to receive one or more wires therethrough. The circuit board supports an interface circuit configured to communicate on a building network. The circuit board also includes device input terminals and device output terminals. The interface circuit is configured to provide an interface between the building network and devices connected to the input and output terminals. The circuit board is configured to be mounted to the mounting plate. The cover is sized to fit over the mounting plate and circuit board.

Abstract: A method for synthesizing concrete polycarboxylic acid water-reducing agent at room temperature under non-stirring situation is disclosed, which comprises dissolving reactive materials, initiator, chain transfer agent and promoter into a solvent, reacting on standing at 0-50° C.; then adding neutralizing agent at the end of reaction. The method makes use of oxidation-reduction system reacting at low temperature, and can adapt to a variety of reactive material monomers. It does not need to control feeding speed or provide extra heating, does not need to stir during the reaction, and remarkably simplifies operation steps in traditional process, which makes it possible to not only produce in large scale, but also produce in small scale in concrete construction site at any moment.

Abstract: An active rectifier controller decouples measurements of the phase and speed of a variable frequency synchronous generator from measurements of the AC output voltage. The active rectifier controller receives position information representative of the rotor position of the VFSG independent of a load connected to the VFSG that is used to determine the phase position and speed of the VFSG. Based on measurements of the generator speed and phase, the active rectifier controller controls the active rectifier to draw AC currents in-phase with the back-electromotive force (BEMF) voltage of the VFSG.

Abstract: An input/output module for a building automation system includes a mounting plate, a circuit board, and a cover. The mounting plate has at least two fastener receptacles (24-30) positioned to align with fastener receptacles of a standard electrical junction box (90). The mounting plate further includes at least two openings, each opening sized to receive one or more wires therethrough. The circuit board supports an interface circuit configured to communicate on a building network. The circuit board also includes device input terminals and device output terminals. The interface circuit is configured to provide an interface between the building network and devices connected to the input and output terminals. The circuit board is configured to be mounted to the mounting plate. The cover is sized to fit over the mounting plate and circuit board.

Abstract: An active rectifier controller decouples measurements of the phase and speed of a variable frequency synchronous generator from measurements of the AC output voltage. The active rectifier controller receives position information representative of the rotor position of the VFSG independent of a load connected to the VFSG that is used to determine the phase position and speed of the VFSG. Based on measurements of the generator speed and phase, the active rectifier controller controls the active rectifier to draw AC currents in-phase with the back-electromotive force (BEMF) voltage of the VFSG.

Abstract: A universal alternating current (AC) inverter system with galvanic isolation takes an unregulated direct current (DC) input and provides a high-quality AC output that may be used in conjunction with both linear and non-linear loads. The universal AC inverter system includes a DC-DC converter for converting an unregulated DC input to a regulated DC output, and a DC-AC inverter for converting the regulated DC output to a high-quality AC output. The DC-DC converter includes a DC link isolation high frequency transformer that provides galvanic isolation between the unregulated DC input and the AC output. To avoid saturation of the transformer, the controller for the DC-DC converter employs a DC offset correction loop that prevents accumulation of DC content on the primary side of the transformer. The universal AC inverter system includes a 4-phase inverter topology that converts the regulated DC voltage provided by the DC-DC converter to an AC output.