Abstract: A power converter is provided. When any one of the conversion units of the power converter starts up, the first switching element is turned off and the second switching element is turned on. Consequently, the input voltage is provided to the auxiliary power supply through the linear regulator and the second switching element. When the voltage across the input capacitor within the conversion unit reaches dynamic equilibrium so as to reach a steady-state condition, the second switching element is turned off and the first switching element is turned on. The conversion unit is served as an energy source to provide power to the auxiliary power supply through the first switching element. The power converter utilizes the components within the conversion unit to provide power during the steady-state condition. The power loss of the linear regulator is reduced, and the overall stability of the power converter is improved.

Abstract: A power converter is provided. The power converter includes an input port, an output port and N conversion units. The power converter is configured to receive an input voltage through the input port and output an output voltage through the output port. Each conversion unit includes a sub input port, a sub output port and a maximum stress rating. The sub input port of each conversion unit is connected with the input port to receive the input voltage. The sub output port of each conversion unit is connected with the output port. The maximum stress rating is a maximum stress tolerable by any component within the corresponding conversion unit. When the input voltage of the input port is greater than the maximum stress rating of any one of the N conversion units, the sub input ports of the N conversion units are connected in series.

Abstract: The present disclosure provides a power converter including a transformer, a first current detection circuit and a rectifier circuit. The transformer includes a primary side winding and a secondary side winding coupled to each other. The first current detection circuit is electrically connected in parallel to the secondary side winding and includes a first auxiliary winding, a first switch and a first impedance device electrically connected in series. The first auxiliary winding is coupled to the secondary side winding. The rectifier circuit includes a first bridge arm and a second bridge arm electrically connected in parallel. The first bridge arm includes a second switch and a third switch electrically connected in series, and the second bridge arm includes a fourth switch and a fifth switch electrically connected in series.

Abstract: A driving circuit includes a driver, a negative voltage generating circuit and a negative voltage control circuit. The driver receives a first control signal and generates a first driving signal. The negative voltage generating circuit includes a first terminal, a second terminal, a first resistor, a first capacitor and a second resistor. A first switching signal is output from the second terminal to control the operation of one part of a plurality of main switches. The negative voltage control circuit includes a diode and an auxiliary switch. When the first control signal is transitioned from a high level state to a low level state, the first switching signal is transitioned from a positive voltage to a negative voltage. Following the dead time, the first switching signal is transitioned from the negative voltage to a zero voltage.

Abstract: A power module is disclosed, and includes a semiconductor device, a magnetic component and a first circuit board. The magnetic component includes a magnetic core and a winding. The winding extends through the magnetic core. The semiconductor device, the magnetic component and the first circuit board are arranged in a stack along a first direction. The first side of the semiconductor device is welded on a side of the first circuit board. At least one of the lower surface of the magnetic component and the lower surface of the first circuit board forms a welding surface. The power module receives input signals from an exterior through the welding surface and transmits output signals to the exterior through the welding surface.

Abstract: The present disclosure provides a voltage regulator module. The voltage regulator module includes a power element, a passive component, an inductor module and a conductor. The inductor module includes a magnetic core, and the magnetic core includes a concave structure. When the magnetic core is connected and attached to the second surface of a first printed circuit board, the passive component disposed on the second surface of the first printed circuit board is accommodated within the concave structure. The conductor is disposed on the magnetic core and configured to transmit electric power and electric signals. In this way, the size of the voltage regulator module is reduced, and the power density is enhanced.

Abstract: A method for forming a power module package includes providing a power module including an electrical element and an electrical connection portion; providing an electrical connection terminal including a connection end, an extension portion and an end cap, wherein the extension portion is extended between the connection end and the end cap and has a hollow cavity therein; disposing the electrical connection terminal on the electrical connection portion for electrically connecting the connection end to a corresponding electrical connection portion; packaging the power module and the electrical connection terminal through an encapsulant to form a packaged body; removing a portion of a surface of the packaged body for exposing the end cap of the electrical connection terminal; and removing the end cap to expose the hollow cavity of the electrical connection terminal, so as to form the power module package.

Abstract: A magnetic component is disclosed and includes a circuit board and a magnetic core set. The circuit board includes two through holes passing through a first surface and a second surface thereof. The magnetic core set includes an upper magnetic cover and a lower magnetic cover disposed on the first surface and the second surface, respectively. The upper magnetic cover includes two magnetic columns connected to the lower magnetic cover through the two through holes. The upper magnetic cover is thermally coupled to a heat dissipation device, and a volume of the upper magnetic cover is greater than that of the lower magnetic cover. A thermal resistance defined from the upper magnetic cover to the heat dissipation device is smaller than that defined from the lower magnetic cover to the heat dissipation device. It helps to make the overall heat distribution of the magnetic component more uniform.

Abstract: The present disclosure provides a power converter including a transformer, a first current detection circuit and a rectifier circuit. The transformer includes a primary side winding and a secondary side winding coupled to each other. The first current detection circuit is electrically connected in parallel to the secondary side winding and includes a first auxiliary winding, a first switch and a first impedance device electrically connected in series. The first auxiliary winding is coupled to the secondary side winding. The rectifier circuit includes a first bridge arm and a second bridge arm electrically connected in parallel. The first bridge arm includes a second switch and a third switch electrically connected in series, and the second bridge arm includes a fourth switch and a fifth switch electrically connected in series.

Abstract: A method for forming a power module package includes providing a power module including an electrical element and an electrical connection portion; providing an electrical connection terminal including a connection end, an extension portion and an end cap, wherein the extension portion is extended between the connection end and the end cap and has a hollow cavity therein; disposing the electrical connection terminal on the electrical connection portion for electrically connecting the connection end to a corresponding electrical connection portion; packaging the power module and the electrical connection terminal through an encapsulant to form a packaged body; removing a portion of a surface of the packaged body for exposing the end cap of the electrical connection terminal; and removing the end cap to expose the hollow cavity of the electrical connection terminal, so as to form the power module package.

Abstract: The present application discloses a DC-to-DC converter circuit and a circuit board layout structure for the same. The DC-to-DC converter circuit is electrically connected between a first power supply side and a second power supply side, and comprises a first branch with a primary side coupled to the first power supply side and a secondary side coupled to the second power supply side; a second branch with a primary side coupled to the first power supply side and a secondary side coupled to the second power supply side; and a first inductor. The secondary sides of the first branch and the second branch are connected in series via the first inductor.

Abstract: The present application discloses a DC-to-DC converter circuit and a circuit board layout structure for the same. The DC-to-DC converter circuit is electrically connected between a first power supply side and a second power supply side, and comprises a first branch with a primary side coupled to the first power supply side and a secondary side coupled to the second power supply side; a second branch with a primary side coupled to the first power supply side and a secondary side coupled to the second power supply side; and a first inductor. The secondary sides of the first branch and the second branch are connected in series via the first inductor.