Abstract: A power conversion device includes a DC-to-DC converter and a control unit, the control unit includes a phase-locked loop controller, and the DC-to-DC converter includes a primary side circuit, a secondary side circuit and a transformer. The transformer transfers energy between the primary side circuit and the secondary side circuit, the primary side circuit includes an inverter circuit, and the phase-locked loop controller outputs a first driving signal. The first driving signal is generated according to a phase jitter signal, a phase reference signal and an output phase signal of the inverter circuit, and the first driving signal is configured to control the inverter circuit.

Abstract: The invention discloses a power conversion device and a voltage control method. The power conversion device includes a first stage circuit configured to generate a first output voltage, a second stage circuit configured to receive the first output voltage and generate an output current and a second output voltage, and a control unit configured to control the first stage circuit according to a set value of the output current, thereby adjusting the first output voltage. The invention can be adapted to a wide range load voltage by adjusting the first output voltage of the first stage circuit according to the set value of the output current of the second stage circuit.

Abstract: A method for manufacturing a plastic article for a magnetic element, comprising: providing a first die core and a second die core opposite to each other along a first direction; providing a third die core adjacent to the first die core and the second die core along a second direction wherein the second direction is perpendicular to the first direction; providing at least one hole insert for forming a pin-fixing hole for fixing a lead-pin of a winding of the magnetic element, wherein the at least one hole insert is detachably mounted to at least one of the first die core, the second die core, and the third die core; and combining the first die core, the second die core, the third die core, and the at least one hole insert to form a mold with a cavity, wherein the cavity is injection molded to manufacture the plastic article.

Abstract: The present disclosure provides a switching power supply and a control method for a switching power supply, and relates to the technical field of power supply. The method includes: detecting a temperature of a bus capacitor and determining temperature information of the bus capacitor, where an input terminal of a PFC boost circuit is connected to a power source, and the bus capacitor is located at an output terminal of the PFC boost circuit; and adjusting a voltage across the bus capacitor in a preset manner according to the temperature information of the bus capacitor.

Abstract: The present disclosure provides a control method for a resonant converter and a resonant converter, and relates to the technical field of resonant converters. The resonant converter includes a primary side switch and a corresponding rectification switch, the primary side switch is controlled by a first control signal, the rectification switch is controlled by a second control signal, and the method includes: acquiring a voltage difference value, where the voltage difference value is obtained by subtracting a voltage value of an output voltage of the resonant converter from a reference voltage value; and adjusting a turn-on dead time and/or a turn-off dead time between the first control signal and the second control signal according to the voltage difference value.

Abstract: The present disclosure provides a rectifier module and a transformer, the rectifier module includes a transformer and a rectifier board, the transformer includes: a magnetic core; a first winding; and a second winding, the magnetic core includes a magnetic column, the first winding is arranged on the magnetic column, and the second winding is arranged outside the first winding; comb-type pins are respectively arranged on opposite sides of the second winding, the comb-type pins are arranged along a first direction, and the comb-type pins include comb teeth and comb gaps; the rectifier board includes: a circuit board; and a plurality of switch element groups arranged along the first direction, the switch element group includes at least one switch element; along the second direction, the comb teeth are adjacent to the switch element; the first direction and the second direction are perpendicular to each other.

Abstract: Disclosed are a method for fabricating an inductor with a vertical winding and an injection molding tooling thereof. The fabrication method includes: providing a conductive member that includes a connection piece, which includes a first surface and a second surface that are oppositely arranged, and a pillar on the first surface; injecting the magnetic material onto a side of the conductive member with the pillar, such that the magnetic material and the conductive member form an integrated structure; and cutting the connection piece to form the vertical winding. The injection molding tooling includes: an upper punch for stamping a magnetic material and a conductive member into an integrated structure, a molding cavity body surrounding a periphery of a pillar of the conductive member, and a lower punch for bearing a connection piece of the conductive member.

Abstract: A flyback circuit and a control method of a clamping switch of the flyback circuit are provided. The flyback circuit includes a transformer, a main switch, a clamping capacitor, a clamping switch, and a secondary rectifier unit. The transformer includes primary and secondary windings with a turns ratio of K. The main switch and the primary winding are connected in series to receive an input voltage. The clamping switch and the clamping capacitor are connected in series and then connected to the primary winding in parallel. The secondary rectifier unit and the secondary winding are connected in series to provide an output voltage to a load. The control method includes: when a product of K and the output voltage is greater than or equal to the input voltage, controlling the clamping switch to turn on M times during N consecutive switching cycles of the main switch, where I?M<N.

Abstract: The present disclosure provides a manufacturing method of a magnetic element, comprising: forming an insulation layer on an outer side of at least one section of a magnetic column of a magnetic core; forming a metal wiring layer on an outer side of the insulation layer through a metallization process; and dividing at least part of the metal wiring layer into a multi-turn metal winding through a mechanically dividing process.

Abstract: A hot-swappable pump unit (HSPU) and a coolant distribution unit (CDU) using the same are disclosed. The HSPU is connected to a loop inlet element, a loop outlet element and a fixed component of CDU along a matching direction. The HSPU includes a housing, a pump, a pump inlet element, a pump outlet element and a fastening component. The pump inlet element is in communication with the pump by passing through a first lateral wall of the housing. The pump outlet element is in communication with the pump by passing through the first lateral wall. The fastening component is arranged on the housing and configured to engage with the fixed component, to drive the hosing to move along the matching direction. Whereby, the pump inlet element and the loop outlet element are matched and connected, and the pump outlet element and the loop inlet element are matched and connected.

Abstract: A multi-port power delivery system and a power allocation method thereof are disclosed. The system comprises a first connection port, a second connection port, and a controller which is configured to monitor the average power of each connection port, and decrease the power budget of the first connection port and increase the power budget of the second connection port when the average power of the first connection port falls below a first threshold, and the average power of the second connection port exceeds a second threshold.

Abstract: The present disclosure concerns a method of manufacturing an electronic device, where the electronic device includes at least one electronic component with at least one electrical winding, and at least one heat dissipation mass coating, and the method includes inserting the at least one electronic component into a cavity; pouring, before or after the insertion of the electronic component, a heat dissipation mass into the cavity so as to at least partially fill the cavity and at least partially cover the electronic component with the heat dissipation mass; removing the electronic device, namely, the electronic component covered by the heat dissipation mass coating, from the cavity. The present disclosure also concerns an electronic apparatus including at least one electronic device manufactured by the foregoing method.

Abstract: The present application provides a power supply system for supplying power to network device, comprising power supply module, housing, and stereoscopic accommodating space therebetween. The power supply module without a fan comprises: a primary circuit comprising at least one primary switch and configured to receive AC input voltage and convert the AC input voltage into a first voltage; a transformer comprising primary and secondary windings and configured to convert the first voltage into a second voltage, the primary winding is coupled to the primary circuit; and a secondary circuit comprising at least one secondary switch and configured to convert the second voltage into a DC output voltage for the network device, the secondary circuit is coupled to the secondary winding, the secondary switch adopts SMT package, and power density of the power supply module is 60 W/inch3 or more. The stereoscopic accommodating space is filled with liquid coolant for cooling.

Abstract: A magnetic element includes a magnetic core assembly and a winding assembly. The magnetic core assembly includes a first magnetic part. The winding assembly includes a first winding. The first winding is wound around the first magnetic part. Moreover, at least a portion of a substrate is formed as the first winding. The substrate includes a first accommodation space and a first metal structure. Moreover, at least a portion of the first metal structure is formed as at least a portion of the first winding and disposed on four lateral surfaces of the first accommodation space, and at least a portion of the first magnetic part is disposed within the first accommodation space.

Abstract: A motor includes a rotor and a stator. The rotor comprises a rotating shaft and an impeller. The impeller couples with the rotating shaft and has a hub. The hub has an outer surface, an inner surface, a plurality of first through holes and a plurality of second through holes. The first through holes are disposed nearer the rotating shaft than the second through holes. The stator comprises a silicon steel sheet and a bearing assembly. The silicon steel sheet has an annular portion and a plurality of protruding portions. The rotating shaft couples with the bearing assembly and penetrates within an inner hole of the annular portion. Each protruding portion is extended outward from the annular portion and has an extending length. The distance between the first through hole and the nearest second through hole is in a range of 0.3 to 1.2 times of the extending length.

Abstract: An electric connector assembly includes a socket and a plug. The socket has a first casing, a base and a first pin assembly. The first pin assembly has a plurality of ground terminals and signal terminals. Each ground terminal has a specific height, and has a first coupling portion disposed on a first end. The plug has a second casing, a receiving base and a second pin assembly. The second pin assembly has a plurality of connecting terminals. Each connecting terminal has a second coupling portion disposed on a second end. When the plug is coupling with the socket, the connecting terminals of the plug respectively clamp the ground terminals and the signal terminals of the socket, and the second coupling portions of the connecting terminals are respectively engaged with the first coupling portions of the ground terminals to increase contact areas.

Abstract: A laser soldering system using dynamic light spot and a method thereof are provided. A laser module is controlled to radiate toward multi-lens to form a light spot on a soldering target for soldering, and a lens distance between the multi-lens is adjusted to adjust a light spot size. The disclosure may provide multiple heating densities respectively adequate to different soldering status via adjusting the light spot size when using same laser power, so as to improve the soldering quality.