Abstract: The present disclosure provides a power conversion circuit including positive and negative input terminals, a clamping branch circuit, a first primary switch, a transformer, a rectifier circuit, a resonant inductor, a resonant capacitor, and positive and negative output terminals. The clamping branch circuit includes a clamping capacitor and a second primary switch serially connected between the first and second terminals thereof. The first terminal is coupled to the positive input terminal. The first primary switch is connected between the second terminal and the negative input terminal. The primary winding of the transformer is connected to the clamping branch circuit in parallel. The rectifier circuit includes first and second bridge arms connected in parallel. Connection terminals in the first and second bridge arms are coupled to two terminals of the secondary winding of the transformer correspondingly. The first and second bridge arms are coupled between the positive and negative output terminals.

Abstract: A vapor chamber and an assembly method thereof are provided. The vapor chamber includes a mesh structure including a main body and an extension part. The main body and the extension part have a capillary-wick structure, respectively. The extension part is extended outwardly from a side of the main body and folded along an intersection between the extension part and the main body. The extension part is stacked on the main body. An overlapping area is formed by stacking the extension part on the main body, and the overlapping area fails to contact with a support structure. The main body is disposed on a first concave of the lower case. The upper case covers the lower case and is assembled with the lower case. A second concave of the upper case and the first concave collaboratively form a space. The mesh structure is accommodated within the space.

Abstract: A stator structure of a vehicle motor includes a stator core assembly and a plurality of coil assemblies composed of flat wires. The stator core assembly includes an annular portion and a plurality of tooth portions. The tooth portions extend from the annular portion in a radial direction toward a center of the stator core assembly. Each coil assembly is configured around a corresponding tooth portion. Each coil assembly includes a first flat wire and a plurality of second flat wires that are electrically connected in parallel. The first flat wire is radially stacked and wound around the corresponding tooth portion. The second flat wires are arranged radially adjacent to the first flat wire and are electrically connected in series to the first flat wire. The second flat wires are alternately stacked and radially wound around the corresponding tooth portion.

Abstract: A guiding grid is disclosed and includes plural circumferential elements and plural radial elements. The circumferential elements are disposed concentrically relative to a central axis, spaced apart from each other in a radial direction, and form different heights relative to a bottom surface. One of the circumferential elements forms a top height relative to the bottom surface, so that the circumferential elements are divided into an outer-ring region and a central region in the radial direction. The circumferential elements located in the central region are increased in height relative to the bottom surface along the radial direction. The circumferential element located in the outer ring region are reduced in height relative to the bottom surface along the radial direction. The radial elements are connected between each of two adjacent circumferential elements. At least one of the radial elements is misaligned and discontinuous in the radial direction.

Abstract: This disclosure is directed to an electronic device having a casing, a circular frame, and a display. A panel is arranged on one side of the casing, a circular opening is defined on the panel, and a first fixing structure is arranged on an inner edge of the circular opening. The circular frame is rotatably arranged in the circular opening to close the circular opening, a second fixing structure is arranged on an outer edge of the circular frame, and the second fixing structure is limited by the first fixing structure. The display is embedded in the circular frame and exposed on the panel, so that the display is rotatable according to various placing positions of the casing.

Abstract: An electronic device is provided and includes a circuit board and a casing. The circuit board includes a plate body, a perforation and a ground wire. The perforation penetrates through the plate body, the ground wire is electrically coupled with the plate body and crosses over the perforation. The casing includes a bottom plate and a clamping structure. The clamping structure is disposed on the bottom plate and includes a first clamping part and a second clamping part. The circuit board is disposed in the casing, and the clamping structure penetrates through the plate body through the perforation, so that the circuit board is positioned on the casing, and the ground wire is clamped by the first clamping part and the second clamping part of the clamping structure. Consequently, the circuit board is grounded with the casing.

Abstract: A failure diagnostic system of a motor encoder is disclosed and includes a motor, an encoder, a servo driver, and a safety module. The servo driver controls the motor through a current command. The safety module continuously obtains a feedback position of the motor through the encoder. When the safety module determines based on the feedback position that the current state of the motor is consistent with a pre-determined disturbance condition, the safety module requests the servo driver to output an additional current command to disturb the motor. Next, the safety module determines whether the encoder is failure based on a variation of following feedback position.

Abstract: A container energy storage system is provided in this disclosure. The system includes a container and a plurality of functional assemblies. The container includes a container frame and a bottom plate. The container frame is formed with a plurality of openings and a hollow main body. The bottom plate is disposed at a bottom of the container frame and is fixedly connected to the container frame. The functional assemblies are disposed in the hollow main body and located above the bottom plate.

Abstract: An automatic generation system of a training image and a method thereof are provided. The disclosure generates a training image and records the target category and the target position. The disclosure adds the target image to the container image as a candidate image, calculates a reliability of the candidate image, and repeatedly executes the process until the reliability of the candidate image meets a threshold condition for generating the training image. The disclosure is able to generate the training images automatically, and the recognition difficulty of the training image is adjustable by the user, so as to be suitable for customized recognition training.

Abstract: A speed-command generating unit incorporated with an electric vehicle having a throttle module, a mechanical brake and a motor is disclosed and includes: a computation module for generating a computation value of a speed-command according to a throttle operating signal from the throttle module, a sensing module for detecting an activated status of the mechanical brake, a selecting module for providing a braking approach selecting signal, a trimming module for setting a trimming flag according to the activated status of the mechanical brake of last cycle, and a switching module connected therewith. The switching module generates different output values of the speed-command for the motor according to different foundations depending on the content of the trimming flag when the mechanical brake is inactivated in this cycle, and generates the output value according to the content of the braking approach selecting signal when the mechanical brake is activated in this cycle.

Abstract: A LED power supply with bi-level dimming receives an input voltage to supply power to an LED lamp, and adjusts the brightness of the LED lamp according to whether an external detection switch is triggered to be turned on. The LED power supply includes a conversion circuit, a switch, and an oscillation circuit. The conversion circuit converts the input voltage into an output voltage, and provides the output voltage to supply power to the LED lamp so as to control the LED lamp to provide a first brightness. The oscillation circuit provides a dimming signal with a fixed frequency and a duty cycle to the switch when the external detection switch is turned on so as to turn on and turn off the switch. The switch correspondingly adjusts the output voltage according to the dimming signal to control the LED lamp to provide a second brightness.

Abstract: A power supply system with dynamic current sharing includes a current-sharing bus and a plurality of power supply units connected to each other through the current-sharing bus. The current-sharing bus provides a first current signal. Each power supply unit includes a local current bus for providing a second current signal. The active current-sharing unit compares the first current signal with the second current signal to generate a compensation voltage. The current-averaging unit compares a difference value between an average value of the first current signal and an average value of the second current signal to generate an average voltage. The droop current unit receives the second current signal to generate a droop compensation voltage. The integration calculation unit makes output currents of the power supply units be approximately equal according to the compensation voltage, the average voltage, and the droop compensation voltage.

Abstract: The present application provides a control method, an auxiliary power supply of a photovoltaic inverter, and a photovoltaic power generation system. The auxiliary power supply includes a rectifier circuit and a conversion circuit with at least one output terminal. The conversion circuit includes a voltage determining unit and a power determining unit. The conversion circuit is coupled to an output terminal of the rectifier circuit, and is configured to convert direct current power into at least one auxiliary voltage. The power determining unit and the voltage determining unit are coupled to an input terminal of the inverter circuit or an input terminal of the photovoltaic inverter, which are configured to obtain output power and an output voltage of the solar panel, respectively. When the output voltage is greater than the start-up voltage and the output power is greater than the start-up power, the auxiliary power supply starts.

Abstract: An integrated magnetic element includes an accommodating part; a current sensor disposed on the accommodating part; and a transformer disposed on the accommodating part. The transformer includes a magnetic core, a first winding including a plurality of wires, and a second winding, wherein some of the plurality of wires passes through the current sensor to shunt and detect current flowing through the first winding, and current values of the wires are detected by the current sensor to obtain a total current value of the first winding of the transformer according to a shunt ratio by the winding construction of the preset transformer.

Abstract: A heat sink includes a heat conduction portion and a heat dissipation portion. The heat conduction portion is a flat plate with two main surfaces parallel with each other and a plurality of side surfaces. One of the two main surfaces is a contacting surface contacting a heat source. The heat dissipation portion is extended outward from at least one of the plurality of side surfaces of the heat conduction portion. The heat dissipation portion includes a plurality of first branches and a plurality of second branches. Each of the first branches is a flat plate and has two opposite main surfaces and four side surfaces. The two opposite main surfaces of each of the first branches are parallel to the two main surfaces of the heat conduction portion. The second branches are extended from the first branches and parallel to the heat conduction portion.

Abstract: A multi-winding inductor includes a magnetic core including three magnetic columns and two windings. Each winding includes a first, a second and a third portions. The first magnetic column is arranged between the first portion of the first winding and the first portion of the second winding; the second magnetic column is arranged on one side of the first portion of the first winding and the third portion of the second winding; and the third magnetic column is arranged between the third portion of the first winding and the third portion of the second winding. The first and the second portions of two windings respectively form pins on opposite sides of the magnetic core.

Abstract: A motor inverter is provided. The motor inverter is coupled to an input power source and a motor and controls the mechanical switch to receive or turn off the input power source. The motor inverter includes primary and secondary auxiliary circuits, a microprocessor, a gate driver, and a motor drive circuit. The primary and secondary auxiliary circuits are coupled to the input power source and outputs first and second output voltages respectively. The microprocessor operates the driving switches of the motor drive circuit through the gate driver to switch the input power source for driving the motor. If the microprocessor determines that the first output voltage is abnormal and the motor rotational speed exceeds a safe speed limit, the microprocessor controls the driving switches to form an active short circuit for stopping the motor, and the microprocessor turns off the mechanical switch for protecting the input power source.

Abstract: A system controller includes a light source, an optical guiding assembly, a sensor and a feedback controller, and is applied to perform a solder operation with a solder module. The light source emits waveband light guided to a to-be-soldered area for heating. The optical guiding assembly is disposed between the light source and the solder module, and the waveband light is guided to the solder module by the optical guiding assembly. The sensor is disposed on another side of the optical guiding assembly for receiving a sensing light beam and then generating a sensing signal. The sensing light beam is guided to the sensor by the optical guiding assembly. The feedback controller is connected with the sensor and the light source for receiving the sensing signal and then controlling the light source. The system controller is a static part, and the solder module is a dynamic part.

Abstract: The disclosure provides a method for controlling a charging current of an electric vehicle and a charging device. The controlling method includes: sampling current temperature of the charging connection node; generating a current regulation amount according to the current temperature and a preset target temperature threshold; and regulating the charging current flowing through the charging connection node according to the current regulation amount.