Abstract: The present disclosure relates to a leveling control method, device and system, a motor grader. The leveling control method includes: acquiring elevations of a current position of a blade of a motor grader and a target position, and a movement speed of the motor grader, wherein the target position is on the ground with a certain horizontal distance from the current position along a movement direction of the motor grader; determining a movement time of the blade from the current position to the target position from the horizontal distance and the movement speed; determining a lifting speed of a lifting cylinder from an elevation difference between the elevation of the target position and the elevation of the current position and the movement time; and controlling the lifting cylinder to adjust the blade to move from the current position to the target position according to the lifting speed.

Abstract: A DC/DC converter includes a high-voltage side, a low-voltage side, a high-voltage side capacitor and a power conversion circuit. The high-voltage side includes a high-voltage positive terminal and a high-voltage negative terminal. The low-voltage side includes a low-voltage positive terminal and a low-voltage negative terminal. The low-voltage negative terminal is electrically connected with the high-voltage negative terminal A first terminal of the high-voltage side capacitor is electrically connected with the high-voltage positive terminal. A second terminal of the high-voltage side capacitor is electrically connected with the low-voltage positive terminal. The power conversion circuit is electrically connected between the high-voltage side and the low-voltage side. The power conversion circuit includes at least one switch and at least one magnetic assembly.

Abstract: A power conversion circuit includes an input positive terminal, an input negative terminal, an output positive terminal, an output negative terminal, a first bridge arm, a second bridge arm, a transformer, a first resonant capacitor, a second resonant capacitor, a third resonant capacitor and a third resonant capacitor. The transformer includes a first winding, a second winding and a third winding. The plurality of switches in the first bridge arm and the plurality of switches in the second bridge arm are selectively turned on or turned off. The ratio of the input voltage to the output voltage can be adjustable by changing the turn numbers of the first winding, the second winding and the third winding.

Abstract: The present disclosure provides a power conversion circuit including input positive and negative terminals, output positive and negative terminals, an input inductor, two bridge arms, a transformer, an output capacitor and an auxiliary capacitor. The input and output negative terminals are connected. A first terminal of the input inductor is coupled to the input positive terminal. Each bridge arm includes three switches connected in series and two connection points between the switches. The winding of the transformer is coupled in series between the connection points of the two bridge arms, and two windings of the transformer are connected and form a connection point coupled to the output positive terminal. Two terminals of the output capacitor are electrically connected to the output positive and negative terminals respectively. Two terminals of the auxiliary capacitor are electrically connected to a second terminal of the input inductor and the output terminal respectively.

Abstract: A power module includes a printed circuit board, a magnetic element, a secondary side switching circuit and at least two groups of external terminals. The magnetic element is disposed on the printed circuit board. The magnetic element includes at least one primary winding and plural secondary windings. The secondary side switching circuit includes a plurality of secondary switching units. Each secondary switching unit includes a plurality of switches connected in parallel. The switches of each secondary switching unit are evenly distributed on a first surface and a second surface of the printed circuit board. The switches of the secondary switching unit on the first surface and the second surface of the printed circuit board are at least partially overlapped with each other. The at least two groups of external terminals are disposed on the second surface of the printed circuit board, and electrically connected with the secondary side switching circuit.

Abstract: A magnetic device and an electronic device are provided. The magnetic device includes a magnetic core assembly and a winding assembly. The magnetic core assembly includes a first magnetic cover, a second magnetic cover, a first magnetic leg and a second magnetic leg. The first magnetic leg and the second magnetic leg are between the first magnetic cover and the second magnetic cover. A channel is formed between the first magnetic leg and the second magnetic leg. The winding assembly includes two coupled windings. Each coupled winding includes a first sub-winding, a second sub-winding, a third sub-winding. The first sub-winding goes through the channel. The second sub-winding is wound around the first magnetic leg. The third sub-winding is wound around the second magnetic leg.

Abstract: An apparatus includes a substrate, a switching device, a capacitor device, a first via, a second via, a third via and a fourth via. The substrate has a first surface and a second surface and includes a plurality of copper layers including M positive copper layers and N negative copper layers. The M positive copper layers and the N negative copper layers are alternated. The switching device is disposed on the first surface and includes a switching positive terminal and a switching negative terminal. The capacitor device is disposed on the first surface and includes a capacitor positive terminal and a capacitor negative terminal, and the capacitor device forms a capacitor area. The projections of the adjacent positive and negative copper layers and the capacitor area on the first surface at least partially overlap with each other.

Abstract: A power conversion module includes a high-voltage side, a low-voltage side, a magnetic element, a high-voltage side circuit, and a low-voltage side circuit. The first end includes a high-voltage positive terminal and a high-voltage negative terminal. The second end includes a low-voltage positive terminal and a low-voltage negative terminal. The magnetic element includes two first windings. The high-voltage side circuit is electrically connected with the high-voltage positive terminal and the high-voltage negative terminal. The low-voltage side circuit is electrically connected with the low-voltage positive terminal and the low-voltage negative terminal. At least one AC loop includes at least one of the first windings, at least one part of the high-voltage side circuit and the low-voltage side circuit. The high-voltage side circuit and the low-voltage side circuit are located at a same side with respect to the magnetic element.

Abstract: A magnetic device includes a first conductive structure, a second conductive structure and a magnetic core formed of a powder magnetic material. The first conductive structure includes a first connection part, a first conductive body and a second connection part. The first conductive body is connected between the first connection part and the second connection part. The second conductive structure includes a third connection part, a second conductive body and a fourth connection part. The powder magnetic material, the first conductive structure and the second conductive structure are laminated together. The first conductive structure and the second conductive structure are embedded in the magnetic core. The first connection part and the third connection part are exposed to the fifth surface. The second connection part and the fourth connection part are exposed to the sixth surface.

Abstract: A stacking system is disclosed and includes a circuit board, an integrated circuit, a voltage regulation module and a heat dissipation module. The integrated circuit and the voltage regulation module are opposite disposed on a first side and a second side of the circuit board. The heat dissipation module includes a first heat dissipation component and a second heat dissipation component located at a top surface of the integrated circuit and the bottom surface of the voltage regulation module. The second heat dissipation component includes a base and an extended arm. The base is in thermal contact with bottom surface of the voltage regulation module. The extended arm is extended from the base to the first heat dissipation component and in thermal contact with the first heat dissipation component.

Abstract: A voltage regulator module with a vertical layout structure includes a circuit board assembly, an electroplated region and a magnetic core assembly. The circuit board assembly includes a printed circuit board and at least one switch element. The printed circuit board includes a first surface, a second surface, a plurality of lateral surfaces, an accommodation space and a conductive structure. The switch element is disposed on the first surface. A conduction part is formed on the second surface. The conductive structure is perpendicular to the printed circuit board and disposed within the accommodation space. The electroplated region is formed on the corresponding lateral surface, arranged between the conduction part and the first surface, and electrically connected with the conduction part and the switch element. The magnetic core assembly is accommodated within the accommodation space. Consequently, an inductor is defined by the conductive structure and the magnetic core assembly collaboratively.

Abstract: A power conversion module is disclosed. The power conversion module includes a circuit board, an adapter board, a first component and a second component. The second surface of the circuit board includes a concave region. The circuit board has four sidewalls. The first surface of the adapter board is attached to the second surface of the circuit board. The first surface of the adapter board includes a component disposing region, and the component disposing region is corresponding to the concave region. The first component is disposed in the concave region. A height of the first component is less than or equal to a depth of the concave region. The second component is disposed in the component disposing region and accommodated in the corresponding one of the concave region. A height of the second component is less than or equal to the depth of the concave region.

Abstract: A magnetic device includes two common magnetic legs, a plurality of coupled magnetic legs, and two windings. The first winding includes a first input part, a first intermediate part and a first output part. The second winding includes a second input part, a second intermediate part and a second output part. The first input part is disposed between the first common magnetic leg and the first coupled magnetic leg. The second input part is disposed between the second common magnetic leg and the first coupled magnetic leg. The first intermediate part and the second intermediate part are disposed between every two adjacent coupled magnetic legs. The first output part is disposed between the first common magnetic leg and the last coupled magnetic leg. The second output part is disposed between the second common magnetic leg and the last coupled magnetic leg.

Abstract: A converter includes a first end, a second end, a first side and a second side switching circuits and a transformer. The first end includes a first positive terminal and a first negative terminal. The second end includes a second positive terminal and a second negative terminal. The first side switching circuit is coupled to the first end and includes a first bridge arm and a second bridge arm. Two terminals of the first bridge arm are coupled to the first positive terminal and the first negative terminal respectively. Two terminals of the second bridge arm are coupled to the first positive terminal and the second positive terminal respectively. The transformer includes a first side winding coupled to the first side switching circuit and a second side winding coupled to the second side switching circuit. The turns ratio of the first side winding and the second side winding is N:1.

Abstract: A power converter module includes a multilayer printed circuit board, a switching device, a magnetic core element and a winding via. The multilayer printed circuit board has a first surface, a second surface and an inside layer. The multilayer printed circuit board includes a plurality of copper layers. The magnetic core element is disposed in the inside layer and includes a hole. One end of the winding via is electrically connected to the switching device, and the other end of the winding via is electrically connected to the second surface. The winding via penetrates through the hole and forms a magnetic assembly. An amount of the copper layers on a first side of the magnetic core element close to the first surface of the multilayer printed circuit board is at least two more than a second side of the magnetic core element.

Abstract: A power conversion circuit includes an input positive terminal, an input negative terminal, an output positive terminal, an output negative terminal, a first bridge arm, a second bridge arm, a transformer, a first resonant capacitor, a second resonant capacitor, a third resonant capacitor and a third resonant capacitor. The transformer includes a first winding, a second winding and a third winding. The plurality of switches in the first bridge arm and the plurality of switches in the second bridge arm are selectively turned on or turned off. The ratio of the input voltage to the output voltage can be adjustable by changing the turn numbers of the first winding, the second winding and the third winding.

Abstract: The present disclosure provides a power conversion circuit including input positive and negative terminals, output positive and negative terminals, an input inductor, two bridge arms, a transformer, an output capacitor and an auxiliary capacitor. The input and output negative terminals are connected. A first terminal of the input inductor is coupled to the input positive terminal. Each bridge arm includes three switches connected in series and two connection points between the switches. The winding of the transformer is coupled in series between the connection points of the two bridge arms, and two windings of the transformer are connected and form a connection point coupled to the output positive terminal. Two terminals of the output capacitor are electrically connected to the output positive and negative terminals respectively. Two terminals of the auxiliary capacitor are electrically connected to a second terminal of the input inductor and the output terminal respectively.

Abstract: A lateral insulated gate bipolar transistor (IGBT) with a low turn-on overshoot current is provided to reduce a peak value of a current flowing through a device during turn-on of a second gate pulse while preventing a current capability and a withstand voltage capability from being degraded. The lateral IGBT includes: a buried oxygen arranged on a P-type substrate, an N-type drift region arranged on the buried oxygen, on which a P-type body region and an N-type buffer region are arranged, a P-type collector region arranged in the N-type buffer region, a field oxide layer arranged above the N-type drift region, a P-type well region arranged in the P-type body region, and a P-type emitter region and an emitter region arranged in the P-type well region, where inner boundaries of the foregoing 4 regions are synchronously recessed to form a pinch-off region. A gate oxide layer is arranged on a surface of the P-type body region, and a polysilicon gate is arranged on the gate oxide layer.

Abstract: A lateral insulated gate bipolar transistor (IGBT) with a low turn-on overshoot current is provided to reduce a peak value of a current flowing through a device during turn-on of a second gate pulse while preventing a current capability and a withstand voltage capability from being degraded. The lateral IGBT includes: a buried oxygen arranged on a P-type substrate, an N-type drift region arranged on the buried oxygen, on which a P-type body region and an N-type buffer region are arranged, a P-type collector region arranged in the N-type buffer region, a field oxide layer arranged above the N-type drift region, a P-type well region arranged in the P-type body region, and a P-type emitter region and an emitter region arranged in the P-type well region, where inner boundaries of the foregoing 4 regions are synchronously recessed to form a pinch-off region. A gate oxide layer is arranged on a surface of the P-type body region, and a polysilicon gate is arranged on the gate oxide layer.

Abstract: An apparatus includes a substrate, a switching device, a capacitor device, a first via, a second via, a third via and a fourth via. The substrate has a first surface and a second surface and includes a plurality of copper layers including M positive copper layers and N negative copper layers. The M positive copper layers and the N negative copper layers are alternated. The switching device is disposed on the first surface and includes a switching positive terminal and a switching negative terminal. The capacitor device is disposed on the first surface and includes a capacitor positive terminal and a capacitor negative terminal, and the capacitor device forms a capacitor area. The projections of the adjacent positive and negative copper layers and the capacitor area on the first surface at least partially overlap with each other.