Abstract: The present application provides a module structure with high efficiency and good heat dissipation performance, which improves the heat dissipation capability of the VRM module by means of the design of the self-contained heat sink, so as to improve the output power of the VRM module; by means of the device placement in the VRM module, the parasitic parameters on the power transmission path are reduced, and the conversion efficiency of the VRM module is improved; and the dynamic performance of the VRM module is further improved by means of the TLVR technology.

Abstract: A high-power power conversion device includes: a first high-voltage sub-circuit, a second high-voltage sub-circuit, a first low-voltage sub-circuit, a second low-voltage sub-circuit, an input positive terminal, an input negative terminal, an output positive terminal, and an output negative terminal. Under the condition that high-power output is met, the volume and loss of the high-power power conversion device are further reduced, and a steady-state performance and a dynamic performance of the high-power power conversion device are improved. A voltage equalization control scheme is also provided to achieve voltage equalization between the two high-voltage sub-circuits.

Abstract: A power conversion module includes a first bridge arm, a second bridge arm, a transformer and a rectifying circuit. An output positive terminal and an output negative terminal are electrically connected with a low-voltage and high-current load. The first bridge arm and the second bridge arm are electrically connected between an input positive terminal and an input negative terminal. The transformer includes a primary winding, a first secondary winding and a second secondary winding. The two terminals of the primary winding are electrically connected with a midpoint of the first bridge arm and a midpoint of the second bridge arm. An output inductor of the rectifying circuit is electrically connected between the winding midpoint and the output positive terminal. The input voltage is higher than 40V. The output voltage is lower than or equal to 2.2V.

Abstract: The application discloses a circuit topology and a control method for a high-power application of an input voltage to an output voltage with a high step-down ratio; the circuit topology has a low switching loss and a high conversion efficiency in a high-frequency switching occasion. The present application further provides a power conversion device using the circuit topology, which provides a device layout setting of the power conversion device and a winding mode of the transformer. Under the condition that high-power output is met, the volume of the power conversion device is further reduced, and the steady-state performance and dynamic performance of the conversion device are improved.

Abstract: The present application is directed to a power conversion device, which further reduces the thickness and volume of the power conversion device by optimizing the layout structure and winding method of the power conversion device. On the other hand, by optimizing the control/driving mode, the four control signals are used to realize low-loss driving control of the plurality of switches.

Abstract: A power conversion device is provided. By optimizing the winding manner of the high-voltage winding and the low-voltage winding and the layout of corresponding components, the output capability of the power conversion device is improved, and the loss on the energy transmission path is reduced; On the other hand, by means of the assembly structure of the first substrate and the second substrate, a winding is provided on the second substrate, and the magnetic core is assembled to the second substrate from the upper surface and the lower surface of the second substrate, respectively; a hole groove is provided on the first substrate, and the hole groove is used for accommodating an upper magnetic plate of the magnetic core assembly; thus, the volume of the power conversion device is further reduced, and the height difference of the main heating element is reduced, thereby achieving a low thermal resistance.

Abstract: A magnetic assembly includes a magnetic core, four primary windings and four secondary windings. The magnetic core includes four lateral legs. The four primary windings and the corresponding secondary windings are magnetically coupled with each other, and the four primary windings and the corresponding secondary windings are wound on the corresponding lateral legs. The winding directions of the four secondary windings on the corresponding lateral legs are identical. A phase difference between a magnetic flux flowing through a specified lateral leg of the four lateral legs and a magnetic flux flowing through an adjacent lateral leg is any value in the range between 150 degrees and 210 degrees. A phase difference between the magnetic flux flowing through the specified lateral leg and the magnetic flux flowing through another adjacent lateral leg is any value in the range between 60 degrees and 120 degrees.

Abstract: The present application provides a voltage regulating circuit. The voltage regulating circuit includes an input positive terminal, an output positive terminal, a ground terminal, N-phase parallel-connected buck circuits, and an additional branch, where N is a natural number greater than 1, and the N output inductors are coupled or uncoupled. The additional branch includes N?1 additional windings coupled to the N?1 inductors and connected in series sequentially and connected in series with one series inductor.

Abstract: A single-stage power conversion device is provided. The single-stage power conversion device includes an input positive terminal, an input negative end, an output positive terminal, an output negative end, a primary side circuit and a secondary side circuit. The primary side circuit adopts two groups of full-bridge circuit parallel architectures, and the secondary side circuit adopts N synchronous rectification units and N inductors, and N is a natural number with a multiple of 4; and the four inductors included in the secondary side circuit are reversely coupled in the same inductor magnetic core.

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 power module comprises a first circuit board assembly and a magnetic core assembly. The first circuit board assembly comprises a first printed circuit board and at least two switch circuits disposed on the first printed circuit board. The magnetic core assembly is disposed near the first printed circuit board and comprises a magnetic core portion and at least a pair of first electrical conductors. The magnetic core portion comprises at least a core unit, the core unit comprises a pair of holes and a second magnetic overlapping region, and the pair of holes are separated by the second magnetic overlapping region. Each pair of the first electrical conductors is penetrated through the corresponding pair of holes of the magnetic core portion to define two output inductors. Each of the switch circuits is electrically connected with the corresponding output inductor to define a phase circuit of the power module.

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 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: The power module includes a power circuit, a magnetic assembly and a first circuit board. The power circuit includes at least one switch element. The magnetic assembly includes at least one first electrical conductor and a magnetic core module, wherein at least one first electrical conductor passes through the magnetic module, and a terminal of the at least one first electrical conductor is electrically connected to the at least one switch element. The first circuit board includes a first surface and a second surface opposite to the first surface, wherein the power circuit is disposed on the first surface. The power circuit and the magnetic assembly are arranged in sequence along a same direction. The power module further includes a plurality of second electrical conductors, wherein one end of each of the second electrical conductors is disposed on one edge of the second surface of the first circuit board and electrically connected with the power circuit.

Abstract: The application discloses a power conversion device, comprising a circuit substrate, an input positive terminal, an input negative terminal, an output positive terminal, an output negative terminal, a first circuit unit and a second circuit unit. On one hand, stable output and adjustable control of the output voltage can be achieved by setting the control time sequence of the switches in each circuit unit and utilizing four control signals. On the other hand, through arrangement of components, the size and loss of the power conversion device are reduced. On the other hand, the metal block is arranged on the surface of the circuit substrate, the negative terminal and the output negative terminal are short-circuited, and heat generated by the component is dissipated by arranging the metal block.

Abstract: A power conversion module includes a first bridge arm, a second bridge arm, a transformer and a rectifying circuit. An output positive terminal and an output negative terminal are electrically connected with a low-voltage and high-current load. The first bridge arm and the second bridge arm are electrically connected between an input positive terminal and an input negative terminal. The transformer includes a primary winding, a first secondary winding and a second secondary winding. The two terminals of the primary winding are electrically connected with a midpoint of the first bridge arm and a midpoint of the second bridge arm. An output inductor of the rectifying circuit is electrically connected between the winding midpoint and the output positive terminal. The input voltage is higher than 40V. The output voltage is lower than or equal to 2.2V.

Abstract: The present disclosure provides a power converter including an input capacitor, an input switch, first and second bridge arms, first and second storage capacitors and an output capacitor. The first and second bridge arms are connected in parallel between a second terminal of the input switch and the ground terminal. The first bridge arm includes three switches connected in series and has first upper and lower nodes therebetween. The second bridge arm includes three switches connected in series and has second upper and lower nodes therebetween. The first storage capacitor is coupled between the first upper node and the second lower node. The second storage capacitor is coupled between the second upper node and the first lower node. The input switch is configured to block a rush current between the input capacitor and the first storage capacitor and/or the second storage capacitor.

Abstract: A magnetic assembly includes a magnetic core, four primary windings and four secondary windings. The magnetic core includes four lateral legs. The four primary windings and the corresponding secondary windings are magnetically coupled with each other, and the four primary windings and the corresponding secondary windings are wound on the corresponding lateral legs. The winding directions of the four secondary windings on the corresponding lateral legs are identical. A phase difference between a magnetic flux flowing through a specified lateral leg of the four lateral legs and a magnetic flux flowing through an adjacent lateral leg is any value in the range between 150 degrees and 210 degrees. A phase difference between the magnetic flux flowing through the specified lateral leg and the magnetic flux flowing through another adjacent lateral leg is any value in the range between 60 degrees and 120 degrees.

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 power conversion device includes an input end, an output end, a first switch bridge arm, a second switch bridge arm, a first flying capacitor, a second flying capacitor, an output capacitor, and a magnetic assembly. Through a winding mode of a transformer winding, the requirement that the ratio of the input voltage to the output voltage is 5:1 or even 8:1 can be met, and the winding mode of the transformer winding and the layout of the power devices are optimized, so that the loss is reduced, and the size is reduced.