Abstract: A conversion circuit includes a main device, a voltage control circuit and a trigger circuit. An output terminal of the voltage control circuit is electrically connected to a control terminal of the main device. The voltage control circuit is configured to output a driving signal having a first voltage level to the main device. The trigger circuit comprises an output terminal and a sense terminal. The output terminal of the trigger circuit is electrically connected to the control terminal of the voltage control circuit, and the sense terminal of the trigger circuit is electrically connected to the control terminal of the main device.

Abstract: An automatic screw tightening module includes a plate assembly, an input module, a screwdriver module, a transmission module, a movable module, an elastic element and a position sensor. The screwdriver module includes a screwdriver and a screwdriver sleeve. The transmission module is connected with an input terminal of the input module and the screwdriver sleeve for allowing the input terminal, the transmission module and the screwdriver sleeve to be rotated synchronously. The movable module is movably disposed on a base plate of the plate assembly. The movable module includes a bearing, and portion of the screwdriver sleeve is accommodated in the bearing, so that the screwdriver module and the movable module are moved relative to the base plate. The elastic element is disposed on the base plate and connected with the movable module. The position sensor is disposed on the base plate for sensing a displacement of the movable module.

Abstract: A fan and a motor are provided. The fan or the motor includes a shaft seat disposed on a frame, a rotor, and a stopping assembly. The rotor is disposed on the shaft seat and includes a hub and a rotation shaft. The hub has a first locking mechanism adjacent to its peripheral surface, and the rotor is connected to the shaft seat via the rotation shaft. The stopping assembly corresponds to the rotor, and includes a second locking mechanism facing the first mechanism. When the rotor smoothly rotates, the first locking mechanism is separated from the second locking mechanism. When the rotor rotates in reverse, the stopping assembly moves along a first direction, and the first and second locking mechanisms contact each other. When the first locking mechanism is affixed to the second locking mechanism, the rotor stops rotating.

Abstract: A core structure includes a first magnetic cover, a second magnetic cover, and at least two winding columns and at least one common side column provided between the first magnetic cover and the second magnetic cover and opposite to each other. The side wall of the common side column towards the at least two winding columns is provided with at least one first protrusion which extends towards the gap formed between the two adjacent winding columns.

Abstract: The present disclosure provides a connector which is a combination of at least one power pin, one plastic member, and one signal pin, wherein the power pin includes a columnar metal block, each plastic member is connected to the columnar metal block at side surface, each signal pin is attached to a side surface of the plastic member, and extends to two bottom surfaces of the plastic member to form contact surfaces with predetermined areas on the two bottom surfaces; wherein, the contact surface on first bottom surface of the plastic member is flush with first bottom surface of the metal block, and the contact surface on second bottom surface of the plastic member is flush with second bottom surface of the metal block.

Abstract: The present application provides a method of controlling an electrical power system and an apparatus using the same. The electrical power system includes a DC bus and a DC bus capacitor connected to the DC bus. The method includes: receiving a virtual DC bus capacitance value of the DC bus capacitor; detecting a DC bus voltage; calculating an expected value of a DC bus current based on the virtual DC bus capacitance value and the DC bus voltage; and adjusting the DC bus current, so that the DC bus current reaches the expected value and thus the DC bus capacitor is equivalent to the virtual DC bus capacitance value.

Abstract: A conversion circuit includes a main device, a voltage control switching circuit and a trigger circuit. The trigger circuit includes an output terminal and a sense terminal. The sense terminal is electrically connected to the control terminal of the main device. The voltage control switching circuit includes a first terminal, a second terminal and a control terminal. A first terminal is configured to receive an original signal. A second terminal is connected to a control terminal of the main device, and is configured to transmit a driving signal to drive the main device. A control terminal is connected to the main device and the output terminal. The driving signal has a first voltage level generated by the voltage control switching circuit in response to a voltage level at the control terminal of the voltage control switching circuit.

Abstract: A conversion circuit includes a main device including a first terminal, a second terminal and a control terminal, and a voltage control switching circuit including a first terminal configured to receive an first driving signal, a second terminal coupled to the control terminal of the main device and configured to transmit a second driving signal to drive the main device, and a reference terminal coupled to the second terminal of the main device. A current passing through the voltage control switching device is controlled in response to a voltage level of the reference terminal.

Abstract: The present disclosure relates to a component structure, a power module and a power module assembly structure having the component structure. The component structure comprises: a first bus bar, having one end extending to a first plane to form a first connecting terminal; a second bus bar, comprising a front portion of the second bus bar and a rear portion of the second bus bar, wherein the front portion of the second bus bar is laminated in parallel with the first bus bar, and the rear portion of the second bus bar is extended to a second plane to form a second connecting terminal; and an external circuit comprising a third bus bar, wherein the third bus bar is settled in parallel with the rear portion of the second bus bar, to reduce a parasitic inductance between the first connecting terminal and the second connecting terminal.

Abstract: An adapter module includes an adapter unit and an adapter cable. The adapter unit includes a control unit, and the adapter cable includes a data transmission line and a voltage control unit. The control unit is a power delivery controller. The control unit receives a reference voltage provided from the voltage control unit through a data transmission terminal, and the control unit controls the adapter unit to provide a fixed voltage to a load according to the reference voltage.

Abstract: A universal power input assembly includes an input power terminal, a first circuit board and a second circuit board. The input power terminal is electrically coupled to the first circuit board and the first circuit board includes a connector, wherein a first end of the connector is electrically coupled to the first circuit board and a second end of the connector is electrically coupled to the second circuit board.

Abstract: The present disclosure provides a control method of a voltage conversion circuit. The voltage conversion circuit includes a DC voltage input terminal, a primary side switch unit, a resonant inductance, a transformer, a secondary side switch unit and a DC voltage output terminal which are electrically coupled. The resonant inductance is connected to the transformer in series. The voltage conversion circuit also includes a resonant capacitance which resonates with the resonant inductance. The control method includes: controlling switch elements in the primary side switch unit and the secondary side switch unit, so that a range of a ratio Ton/Tr of a total conduction time Ton to a resonant period Tr of the voltage conversion circuit is (0, 1.8)U(2.7, 3.7)U(4.8, 5.5), and a quality factor Q of the voltage conversion circuit is less than or equal to 5, that is, Q?5.

Abstract: The present disclosure provides an AC power adapter comprising plural connectors, plural first power conveying wires, a junction box, a power conveying wire assembly and a plug. The first power conveying wire is connected with the connector and comprises an input neutral wire, an input live wire and an input ground wire. The first power conveying wire is inserted into the junction box. The power conveying wire assembly is inserted into the junction box and comprises plural output neutral wires, plural output live wires and an output ground wire. The output neutral wires are connected with the input neutral wires one-to-one, the output live wires are connected with the input live wires one-to-one, and the output ground wire is connected with the input ground wires. The plug comprises a housing and an electrical connector. The power conveying wire assembly is inserted into the housing and connected with the electrical connector.

Abstract: A control method of a multilevel converter includes: classifying power modules that start working, need to update an output state or stop working to form m power module groups; and controlling power modules in a same one of the power module groups to start working, update the output state or stop working at the same time, and sequentially controlling the m power module groups to start working, or update the output state or stop working, according to a preset time interval. The number of power modules in each power module group is less than or equal to a preset value, causing a change value of an output level of the each power module group to be less than or equal to a preset voltage value.

Abstract: A wireless sensor network includes an aggregator, a control device, a bridge device, and a mesh module. The control device is connected with the aggregator and the bridge device. The mesh module is wirelessly connected with the bridge device and the control device. A mesh network is built by the connections of the mesh module, the bridge device, and the control device. A duty cycle of the mesh module is less than or substantially equal to 10 percent. A command sent by the aggregator is converted into a wireless message by the control device, the wireless message is transmitted by the control device and retransmitted through a first amount of radios and repeated for a second amount of times by the bridge device, so that the wireless message is successfully received by the mesh module. Therefore, a mesh network with high efficiency and low cost is achieved.

Abstract: An instant correction method for an encoder includes the following steps. The motion of a device under test is sensed to obtain a first wave signal and a second wave signal. The first and second wave signals are sampled to generate N first digital signal values and N second digital signal values. N positioning positions are generated according to the N first and second digital signal values, and the N positioning positions are added to a calculation group. A regression analysis is performed for the calculation group to generate a regression curve. The (N+1)-th prediction position is predicted using the regression curve. The ideal position of the device under test is determined at a time point of the (N+1)-th prediction position according to an ideal position curve. An error value between the (N+1)-th prediction position and the ideal position is applied to correct the device under test.

Abstract: A magnetic core is provided. The magnetic core includes a plurality of magnetic core units each having at least one non-shared magnetic core part that is not shared with the neighboring magnetic core unit, wherein a reluctance of the shared magnetic core part is smaller than the reluctance of a non-shared magnetic core part of the magnetic core units, and directions of a direct current magnetic flux in the shared magnetic core part of the neighboring two magnetic core units are opposite.

Abstract: A phosphor device of an illumination system emitting a first waveband light includes a substrate and a phosphor layer formed on the substrate. The phosphor layer includes a first phosphor agent and a second phosphor agent. The first waveband light is converted into a first color light by the first phosphor agent. The second phosphor agent is distributed over the first phosphor agent and mixed with the first phosphor agent, and the first waveband light is converted into a second color light by the second phosphor agent. The first color light and the second color light are integrated into the second waveband light. The difference between the first wavelength peak of the first color light and the second wavelength peak of the second color light is 50 to 100 nanometers. Therefore, the advantages of increasing the purity, the luminance and the luminous intensity of specific color light are achieved.