Abstract: A three-phase power apparatus with bidirectional power conversion applied to charge a battery of an electric vehicle. The three-phase charging apparatus includes an AC-to-DC conversion unit, a first DC bus, a first DC-to-DC conversion unit, a second DC bus, and a second DC-to-DC conversion unit. The first DC bus is coupled to the AC-to-DC conversion unit. The first DC-to-DC conversion unit includes an isolated transformer, a resonant tank, a first bridge arm assembly, and a second bridge arm assembly. The first bridge arm assembly is coupled to the first DC bus and a primary side of the isolated transformer. The second bridge arm assembly is coupled a secondary side of the isolated transformer. The second DC bus is coupled to the second bridge arm assembly. The second DC-to-DC conversion unit is coupled to the second DC bus and the battery.

Abstract: A three-phase power apparatus with bidirectional power conversion applied to charge a battery of an electric vehicle. The three-phase charging apparatus includes an AC-to-DC conversion unit, a first DC bus, a first DC-to-DC conversion unit, a second DC bus, and a second DC-to-DC conversion unit. The first DC bus is coupled to the AC-to-DC conversion unit. The first DC-to-DC conversion unit includes an isolated transformer, a resonant tank, a first bridge arm assembly, and a second bridge arm assembly. The first bridge arm assembly is coupled to the first DC bus and a primary side of the isolated transformer. The second bridge arm assembly is coupled a secondary side of the isolated transformer. The second DC bus is coupled to the second bridge arm assembly. The second DC-to-DC conversion unit is coupled to the second DC bus and the battery.

Abstract: A container energy storage system is provided, including a container, a plurality of functional assemblies, and a splitting plate, wherein the splitting plate has a connecting port electrically connected to the functional assemblies. The container includes a hollow main body having an opening and two doors pivotally connected to the hollow main body. The functional assemblies are disposed in the hollow main body, and the splitting plate is disposed between the functional assemblies and the opening. When the doors are in a closed position, the doors cover the opening.

Abstract: A programmable logic controller (PLC) with an auxiliary processing unit is disclosed. The conventional PLC with one central processing unit has the problems of low execution speed, low counting frequency, and low output clock. The auxiliary processing unit is used to assist the operation of the original central processing unit. Besides, when connecting with another PLC through an expansion interface module, the disclosed PLC also has better performance and efficiency than those of the conventional ones.

Abstract: A metal material adhesion method is described. The method is used for an optical transceiver module assembly process to adhere a protection cover of a laser diode in a metal shell and enhance the adhesion strength thereof. The method employs the following steps. First, the protection cover and the metal shell are provided. A primer layer is coated inside the metal shell. The laser diode is aligned with the metal shell to provide a maximum signal strength position. An epoxy layer is glued between the metal shell and the protection cover to fix the laser diode in the best position. The method further provides a sealant layer to protect the epoxy layer from moisture and a second premier layer to enhance the adhesion strength between the protection cover and the epoxy layer.

Abstract: A connector structure of a circuit board for a power supply apparatus includes an insulating housing, conductive terminals, and at least one supporting rods with each connected to the mounting surface of the insulating housing and having a pillared portion, a first protruding latch and a second protruding latch both extending laterally from a first location and a second location on the pillared portion of the supporting rod respectively. The thickness of a first circuit board is different from the thickness of a second circuit board, thus when a supporting rod passes through a first pinhole on the first circuit board, the first protruding latch props against a bottom of the first circuit board, and when a supporting rod passes through a second pinhole on the second circuit board, the second protruding latch props against a bottom of the second circuit board to prevent a movement of the connector respectively.

Abstract: A locking device and its assemblage are provided for confining an object. The locking device is used to confine the object having an end having a recess having a defining surface to prevent the object from being displaced in a direction. The locking device is a geometrically closed-loop body having a hollow portion, and has a flexibility so that upon being applied with an external force, the object will pass through the hollow portion and the end will thus be confined by the locking device while the force disappears. A simple process can be used to assemble and disassemble the locking assemblage.

Abstract: An axial-flow fan device includes a fan frame having an intake opening and an outlet opening, and an impelling apparatus mounted in the fan frame and having fan blades and an air gap generation member surrounding the fan blade. The air gap generation member which is made of a plurality of rings is mounted on a blade wheel and connected to the ends of the fan blades to reinforce the fan blades, with each of the rings overlapping and separated from each other for generating a plurality of air gaps when the fan blades rotate.

Abstract: A positioning mechanism of a foldable plug is provided. The positioning mechanism includes a plug having a rod and two pins, the rod having a first recess and a second recess, a positioning device formed by injection molding and having a projecting resilience and a first connecting device, a second connecting device for coupling with the first connecting device and supporting the plug, and a third connecting device for coupling with the second connecting device, wherein when the projecting resilience is inserted into the first recess of the plug, the plug is secured to be held in a first position, and when the projecting resilience is inserted into the second recess of the plug, the plug is secured to be held in a second position.

Abstract: A position device is capable of adjusting an inclining angle thereof for using in a driver. The position device includes a movable element, a fixed element for generating a movable magnetic field to move the movable element, and an inclining angle coil assembly for generating a inclining magnetic field to incline the movable element, thereby adjusting the inclining angle of the position device.

Abstract: A modular power supply, having a standard structure to engage with a variety of sockets, includes a casing, a circuit board and a plural number of sockets. The casing has an upper case engageable with a lower case to house the circuit board in between. The circuit board has circuits to convert alternate current into direct current and a connector room at one end thereof for engaging with a socket. In the connector room, there are provided with a pair of spaced terminal seats which has a standard interval in between, and a ground seat. The sockets can include a two-port socket, a three-port socket and a coaxial socket. Each socket has two terminals with the standard interval for engaging with the terminal seats. The three-port socket further has a ground terminal which is engageable with the ground seat.

Abstract: A stereophonic transmitting system is disclosed for transmitting in quadrature a single carrier signal carrying first and second signals. The transmitting system comprises a phase shifter or modulator for phase shifting a carrier signal of a frequency fc in accordance with a feedback signal to provide a phase shifted carrier signal. A first detector operates to detect a component of the phase modulated carrier signal in phase with the carrier signal to provide an in-phase signal and a second detector to detect a component of the phase modulated carrier signal out-of-phase with the carrier signal to provide a quadrature signal. A first multiplier multiplies the in-phase signal by the first signal to provide a first multiplied signal and a second multiplier multiplies the quadrature signal by the second signal to provide a second multiplied signal. A difference circuit is provided for obtaining the difference between the first and second multiplied signals to provide the feedback signal to the phase shifter.