Abstract: A power converter includes a first positive terminal, a first negative terminal, a second positive terminal, a second negative terminal, a first capacitor and N phase conversion circuits. The first capacitor is connected between the second positive terminal and the second negative terminal. Each phase conversion circuit includes a first main switch, a second main switch, a second capacitor, a freewheeling switch, an inductor and a bridge arm circuit. The first main switch is electrically connected with the first positive terminal. The second capacitor is electrically connected with the first main switch and the second main switch. The freewheeling switch is electrically connected between the second main switch and the second negative terminal. The inductor is electrically connected with the second main switch. The second main switch is also electrically connected with the first main switch of an adjacent phase conversion circuit.

Abstract: The present disclosure provides a power module including a circuit board, a first heat-generating component and a second heat-generating component. The circuit board includes a first side and a second side opposite to each other and includes a first plane and second plane disposed on the first side. A first height difference is formed between the first plane and the second plane. The first heat-generating component and the second heat-generating component are disposed on the first plane and the second plane, respectively. The first heat-generating component and the second heat-generating component include a first contact surface and a second contact surface, respectively. The first contact surface and the second contact surface are located at a first collaborative plane of the power module. It benefits to reduce the design complexity of a heat sink, and enhance the heat dissipation capability and the overall power density of the power module simultaneously.

Abstract: The present invention relates to a planar converter, comprising: a magnetic unit comprising a first planar winding and two second planar windings magnetically coupled to each other and a magnetic core assembly; two closed circuits each comprises the first planar winding, a switch, and has a first connection point and a second connection point; two PCBs each provided with at least one of the closed circuits thereon; and two first connectors each comprising two welding ends opposite to each other, wherein the two welding ends of one of the two first connectors are connected to the first connection points of the two closed circuits, respectively, and the two welding ends of another one of the two first connectors are connected to the second connection points of the two closed circuits, respectively, and the two closed circuits are connected in parallel.

Abstract: A power module includes a power source module and a metallic bottom heat-dissipation substrate. The power source module has an input pin and an output pin soldered on and electrically connected with a system board and includes a printed circuit board. The printed circuit board has a top surface and a bottom surface. At least a heat-generating component is disposed on the bottom surface. The metallic bottom heat-dissipation substrate has an upper surface and a lower surface opposite to each other. The upper surface has at least a fixing position and at least a heat-dissipating position. The fixing position is directly or indirectly connected with the bottom surface. A gap accumulated by tolerances is existed between the heat-dissipating position and the heat-generating component. A gap-filling material is filled into the gap. The lower surface and the system board are soldered with each other. Therefore, the heat-dissipation efficiency is enhanced.

Abstract: A voltage regulator module includes a first circuit board assembly, a second circuit board assembly and a magnetic core assembly. The first circuit board assembly includes a first printed circuit board. The second circuit board assembly includes a second printed circuit board, at least one output capacitor, a plurality of ball grid arrays and at least one bonding pad. The second printed circuit board includes a first surface and a second surface. The plurality of ball grid arrays are disposed on the second surface of the second printed circuit board. The at least one bonding pad is arranged beside the first surface of the second printed circuit board. The magnetic core assembly is arranged between the first circuit board assembly and the second circuit board assembly and electrically connected with the at least one bonding pad. The at least one output capacitor is embedded within the second circuit board assembly.

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 voltage regulator module includes a first circuit board assembly and a magnetic core assembly. The first circuit board assembly includes a first printed circuit board, a plurality of switch elements and a first molding compound layer. The switch elements are mounted on a first surface of the first printed circuit board. The first molding compound layer is formed on the first surface of the first printed circuit board to encapsulate the switch elements. The magnetic core assembly is arranged beside a second surface of the first printed circuit board, and includes a magnetic core portion and at least one first U-shaped copper structure. The magnetic core portion includes a plurality of openings. Each first U-shaped copper structure is penetrated through two corresponding openings to define two inductors. A first terminal of each inductor and the corresponding switch element are connected in series to define a phase circuit.

Abstract: A power module comprises a first circuit board assembly, a second circuit board assembly and a magnetic assembly. The first circuit board assembly comprises a first printed circuit board and at least one power circuit. The second circuit board assembly comprises a second printed circuit board and at least one output capacitor. The magnetic assembly is located between the first circuit board assembly and the second circuit board assembly and comprises a magnetic core module and at least one first electrical conductor. The magnetic core module comprises at least one hole. The at least one first electrical conductor passes through the corresponding hole of the magnetic core module to define at least one output inductor. Each of the at least one output inductor is electrically connected with the corresponding power circuit and the at least one output capacitor so that the power module forms at least one phase converter.

Abstract: A voltage regulator module includes a first circuit board assembly and a signal communication part. The first circuit board assembly includes a plurality of first conduction pads. The signal communication part is arranged on the first circuit board assembly. The signal communication part includes a conduction circuit board with a plurality of conduction fingers and a plurality of surface pins. The plurality of conduction fingers are formed on at least one lateral side of the conduction circuit board. The plurality of surface pins are electroplated on a top side and a bottom side of the conduction circuit board. A first end of each conduction finger is contacted with the corresponding surface pin on the top side. A second end of each conduction finger is contacted with the corresponding surface pin on the bottom side. The signal communication part is fixed on and electrically connected with the first circuit board assembly.

Abstract: The present disclosure provides a current sensing device, method and system, where the device is applied in a power convention circuit. The current sensing device includes a first winding coupled to the resonant inductor, a second winding and an integrating circuit coupled to a primary winding of the transformer having a first input terminal, a second input terminal, an output terminal, and a common terminal; one terminal of the first winding is coupled to the first input terminal of the integrating circuit, the other terminal of the first winding and the other terminal of the second winding are coupled and connected to the common terminal of the integrating circuit; one terminal of the second winding is coupled to the second input terminal of the integrating circuit.

Abstract: The present application provides an inductor applied to a power module and a power module with the inductor. The inductor comprises a magnetic core, having a through hole, wherein a pin passes through the through hole of the magnetic core, and acts as a winding to form the inductor together with the magnetic core, and the pin is input pins or output pins of the power module. The inductor applied to the power module and the power module provided by present application reduce the area occupied by the inductor on the circuit board of the power module, reduce the conduction power loss of the inductor, eliminate the wire loss between the pin and the inductor, and heat is dissipated through the pin and the magnetic core, which further improves the efficiency of the heat dissipation of the inductor.

Abstract: The present invention relates to a power conversion device, comprising: at least one resonant circuit comprising at least one resonant inductor and at least one resonant capacitor; a first transformer comprising a first primary winding which is electrically connected to the resonant circuit and at least one first secondary winding; and a second transformer comprising a second primary winding which is electrically connected to the resonant circuit and at least one second secondary winding, the second primary winding and the first primary winding are connected in parallel and have the same number of coil turns, and the second secondary winding and the first secondary winding have the same number of coil turns; an deviation of inductance between the first primary winding and the second primary winding meets |Lm1?Lm2|/(Lm1+Lm2)<=30%, Lm1 is the inductance of the first primary winding, and Lm2 is the inductance of the second primary winding.

Abstract: A magnetic component comprising: a magnetic core comprising an upper magnetic core portion, a lower magnetic core portion, and four core columns; a first winding wound around any two core columns which form a first closed magnetic circuit with the upper and lower magnetic core portions therebetween; and a second winding wound around remaining two core columns which form a second closed magnetic circuit with the upper and lower magnetic core portions therebetween. A sum of an AC flux peak-peak value within single core column of the first closed magnetic circuit, and an AC flux peak-peak value within single core column of the second closed magnetic circuit is larger than not only an AC flux peak-peak value within the upper magnetic core portion, but also an AC flux peak-peak value within the lower magnetic core portion. The first winding and the second winding are not connected in series directly.

Abstract: A magnetic component comprising: a magnetic core comprising an upper magnetic core portion, a lower magnetic core portion, and four core columns; a first winding wound around any two core columns which form a first closed magnetic circuit with the upper and lower magnetic core portions therebetween; and a second winding wound around remaining two core columns which form a second closed magnetic circuit with the upper and lower magnetic core portions therebetween. A sum of an AC flux peak-peak value within single core column of the first closed magnetic circuit, and an AC flux peak-peak value within single core column of the second closed magnetic circuit is larger than not only an AC flux peak-peak value within the upper magnetic core portion, but also an AC flux peak-peak value within the lower magnetic core portion. The first winding and the second winding are not connected in series directly.

Abstract: The present invention relates to a power conversion device, comprising: at least one resonant circuit comprising at least one resonant inductor and at least one resonant capacitor; a first transformer comprising a first primary winding which is electrically connected to the resonant circuit and at least one first secondary winding; and a second transformer comprising a second primary winding which is electrically connected to the resonant circuit and at least one second secondary winding, the second primary winding and the first primary winding are connected in parallel and have the same number of coil turns, and the second secondary winding and the first secondary winding have the same number of coil turns; an deviation of inductance between the first primary winding and the second primary winding meets |Lm1?Lm2|/(Lm1+Lm2)<=30%, Lm1 is the inductance of the first primary winding, and Lm2 is the inductance of the second primary winding.

Abstract: The present disclosure discloses an inductor and a converter having the same. The inductor includes a magnetic core and a winding, the winding is provided within a window of the magnetic core, the winding includes a main body part and a sampling part, the main body part and the sampling part are connected in series, and a length ratio of the sampling part to the main body part is less than 2; wherein the main body part is formed of a low resistivity conductive material, the sampling part is formed of a low temperature coefficient conductive material, and a current flowing through the inductor is sampled across two ends of the sampling part. The inductor can obtain a current detection signal with high accuracy and low temperature drift with a compact structure, without increasing detection loss.

Abstract: The present disclosure discloses an inductor and a converter having the same. The inductor includes a magnetic core and a winding, the winding is provided within a window of the magnetic core, the winding includes a main body part and a sampling part, the main body part and the sampling part are connected in series, and a length ratio of the sampling part to the main body part is less than 2; wherein the main body part is formed of a low resistivity conductive material, the sampling part is formed of a low temperature coefficient conductive material, and a current flowing through the inductor is sampled across two ends of the sampling part. The inductor can obtain a current detection signal with high accuracy and low temperature drift with a compact structure, without increasing detection loss.

Abstract: The present disclosure discloses an inductor and a converter having the same. The inductor includes a magnetic core and a winding, the winding is provided within a window of the magnetic core, the winding includes a main body part and a sampling part, the main body part and the sampling part are connected in series, and a length ratio of the sampling part to the main body part is less than 2; wherein the main body part is formed of a low resistivity conductive material, the sampling part is formed of a low temperature coefficient conductive material, and a current flowing through the inductor is sampled across two ends of the sampling part. The inductor can obtain a current detection signal with high accuracy and low temperature drift with a compact structure, without increasing detection loss.

Abstract: The present disclosure discloses a DC/DC converter and a DC/DC conversion system. The DC/DC converter includes a transformer, a primary power circuit, a secondary bridge synchronous rectifying circuit, an output inductor and a control circuit. The primary power circuit receives an input voltage, and deliver a symmetrical power flow to a secondary side of the transformer during positive and negative switching cycles, and a magnetic flux in the transformer core is balanced through the above symmetrical power flow. The rectifying circuit is coupled to a secondary winding of the transformer. The control circuit provides primary and secondary driving signals to the primary power circuit and the rectifying circuit, respectively. When an output voltage of the primary power circuit is zero, the control circuit controls the first, the second, the third and the fourth switches to be conductive.

Abstract: The present disclosure discloses an inductor and a converter having the same. The inductor includes a magnetic core and a winding, the winding is provided within a window of the magnetic core, the winding includes a main body part and a sampling part, the main body part and the sampling part are connected in series, and a length ratio of the sampling part to the main body part is less than 2; wherein the main body part is formed of a low resistivity conductive material, the sampling part is formed of a low temperature coefficient conductive material, and a current flowing through the inductor is sampled across two ends of the sampling part.