Abstract: Disclosed are power modules that include first and second power dies, each having a gate driver and a pair of transistors, together with an inductor structure formed from first and second inductor coils wound around a shared magnetic core. Each coil has an end electrically connected to a common output-voltage node and another end electrically connected to a switch node of the corresponding power die. The inductor structure has an outer profile defining a top side, a bottom side, opposing wide sides, and opposing narrow sides, with the first ends of the coils disposed along the bottom side and offset from one another, and the second ends disposed on different ones of the narrow sides.

Abstract: A cascaded converter architecture comprising a pure switched-capacitor (SC) stage and a resonant SC stage. Multiple switching buses are utilized to connect the first-stage SC converter with second-stage multi-phase resonant SC converters. The flying capacitors of both stages are resonant with the output inductors, so the charge distribution loss is eliminated. Zero-current switching is realized by adjusting the duty ratio and switching frequency. By using the intermediate switching bus, the number of switches can be reduced, and the intermediate bus capacitor is not required; thereby greatly reducing component count and cost while improving power density. Numerous implementation variations are described by way of example and not limitation.

Abstract: A power converter has an inductor assembly and two power dies. The inductor assembly has two windings that share a magnetic core to form coupled inductors. Each winding has a main body, a first portion and a second portion. The main body extends towards a top surface of the inductor assembly. The first portion extends to form a first end at a bottom surface of the inductor assembly. The second portion extends to form a second end at the bottom surface of the inductor assembly. Each power die comprises a pair of switches that form a switch node electrically connected to a corresponding winding. A partially overlapped region between the two windings determines a coupling coefficient between the coupled inductors.

Abstract: A power module has an inductor assembly and a device assembly beneath it. The inductor assembly has a magnetic core with a winding at least partially embedded. The winding has a first end and a second end exposed on a bottom surface of the inductor assembly, and the first end provides an output voltage. The device assembly has a die substrate, a first power die having a first switch, and a second power die having a second switch. The switches are electrically connected in series between an input voltage and ground reference. The second power die is embedded in the die substrate, having metal contacts on both its top side and bottom side. A first plurality of metal contacts of the first power die and the metal contacts on the top side of the second power die are electrically connected together and both to the second end of the winding.

Abstract: An electronics assembly includes a motherboard, a processor, and a z-axis power delivery (ZPD) module. The processor is mounted on the motherboard. The ZPD module is electrically connected to a substrate of the processor through an opening that goes all the way through the motherboard. The processor may be a central processing unit (CPU), a graphics processing unit (GPU), or a system-on-a-chip (SOC), for example.

Abstract: A search method and apparatus, a computer device and a storage medium are provided. The method includes: acquiring a plurality of service screening labels related to a travel service in response to receiving search information which indicates searching for the travel service, wherein the travel service is related to a geographical location, the service screening label is dynamically determined according to a location feature of the geographical location, and different service screening labels are determined for different geographical locations; and-displaying the plurality of service screening labels and service search results under a currently selected service screening label.

Abstract: Disclosed is a high step down power converter. The power converter includes a bridge circuit and a chain of transformer-rectifier (TR) blocks. Each of the TR blocks has a transformer and a rectifier circuit. The transformer has a magnetic core, primary windings that have one or more turns, and secondary windings that are wound a single turn over corresponding primary windings. The bridge circuit is driven to generate a primary winding current, which flows to the primary windings of the transformers of the TR blocks. Currents induced in the secondary windings are rectified by the rectifier circuits to generate an output current that is provided to a load that is connected to the power converter.

Abstract: Disclosed are transformer-rectifier blocks for power converters. A transformer-rectifier block has a transformer and a rectifier circuit that are vertically integrated with a substrate. The transformer has a magnetic core, primary windings that have one or more turns, and secondary windings that are wound a single turn over corresponding primary windings. The transformer is mounted on one side of the substrate, and the rectifier circuit is mounted on an opposing side of the substrate.

Abstract: A power module comprises a device layer and an inductor assembly. The device layer has a first surface, an opposite second surface, and two pairs of switches. The inductor assembly, whose second surface attaches to the device layer’s first surface, has a magnetic core, a first winding, a second winding, a third winding, and a fourth winding. These windings are at least partially embedded in the magnetic core and expose ends on the second surface of the inductor assembly. The first and third windings and the magnetic core form a first transformer, and the second and fourth windings and the magnetic core form a second transformer. The third and fourth windings are electrically connected in series. The first and second windings each have a horizontal section parallel to the inductor assembly’s first surface, while the third and fourth windings are under these horizontal sections.

Abstract: Disclosed are transformers for power converters. A power converter includes a bridge circuit and a chain of transformer-rectifier (TR) blocks. Each of the TR blocks has a transformer and a rectifier circuit. The transformer has a magnetic core, primary windings that have one or more turns, and secondary windings that are wound a single turn over corresponding primary windings. Leakage flux of the transformer is through a magnetic core that is disposed on top of the windings. The bridge circuit is driven to generate a primary winding current, which flows to the primary windings of the transformers of the TR blocks. Currents induced in the secondary windings are rectified by the rectifier circuits to generate an output current that is provided to a load of the power converter.

Abstract: Disclosed is a high step down power converter. The power converter includes a bridge circuit and a chain of transformer-rectifier (TR) blocks. Each of the TR blocks has a transformer and a rectifier circuit. The transformer has a magnetic core, primary windings that have one or more turns, and secondary windings that are wound a single turn over corresponding primary windings. The bridge circuit is driven to generate a primary winding current, which flows to the primary windings of the transformers of the TR blocks. Currents induced in the secondary windings are rectified by the rectifier circuits to generate an output current that is provided to a load that is connected to the power converter.

Abstract: A power module has an inductor assembly and a device substrate. The inductor assembly has a magnetic core, a first winding and a second winding. Each of the first winding and the second winding comprises a first portion, a second portion, a third portion and a fourth portion. The third portion connects the first portion end the second portion, the fourth portion is connected to the second portion. The device substrate has a first power device chip and a second power device chip. A first end of the first winding is electrically connected to the first power device chip, a second end of the first winding is electrically connected to a first output voltage terminal. A first end of the second winding is electrically connected to a second output voltage terminal, and a second end of the second winding is electrically connected to the second power device chip.

Abstract: Disclosed are power modules with vertically-oriented power dies. A power die includes a power transistor. A plane of the power die is oriented vertically relative to a plane of a motherboard or other substrate. An inductor is disposed on a top end of the power module or between two power dies in the power module.

Abstract: A power block of a power converter includes a first substrate, a second substrate, and an inductor unit between the first and second substrates. Power stage integrated circuits (ICs) are disposed on the first substrate. A set of capacitors is disposed on a bottom side of the first substrate and another set of capacitors is disposed on a topside of the second substrate. The inductor unit has a magnetic core. Embedded within the magnetic core are inductors or transformers of the power converter. The power block can be used together with other power blocks to form a power module with additional output phases.

Abstract: A passive component assembly has a substrate and a passive block. The passive block has a top surface and a bottom surface which is opposite to the top surface. The passive block is mounted on the substrate, and a plurality of pads are exposed on the top surface. The passive block has a plurality of capacitors. A top side of at least one terminal of the plurality of capacitors extends to the top surface to form one of the plurality of pads, and a bottom side of the at least one terminal of the plurality of capacitors extends to the bottom surface to be attached to the substrate.

Abstract: An inductor assembly comprises a first pin, a second pin, a third pin, a fourth pin, a magnetic core, a first winding and a second winding. The first winding has a first portion extended to form the first pin, a second portion extended to form the fourth pin, and a third portion. The second winding has a fourth portion extended to form the second pin, a fifth portion extended to form the third pin, and a sixth portion at least partially over-lapped with the third portion. The third portion and the sixth portion wrap around a center leg of the magnetic core. The first pin and the second pin are at a first side of the inductor assembly, the third pin and the fourth pin are at a second side of the inductor assembly which opposites the first side.

Abstract: A switching converter has an input terminal, an output terminal, a switching circuit, a flying capacitor, and a pre-charge circuit. The input terminal receives an input voltage, the output terminal provides an output voltage. The switching circuit has a plurality of switch devices. The flying capacitor is coupled between at least two of the plurality of switch devices. The pre-charge circuit charges the flying capacitor via partially turning on a pre-charge switch during start-up of the switching converter. A first terminal of the pre-charge switch is coupled to the input terminal. A voltage at a second terminal of the pre-charge switch is controlled to follow a voltage at a control terminal of the pre-charge switch, and a voltage across the flying capacitor is controlled to increase when the input voltage increases.

Abstract: A power supply module comprises an inductor pack, a top substrate disposed above the inductor pack, a first power IC die and a second power IC die, and a first vertical PCB and a second vertical PCB disposed below the top substrate and attached to a bottom surface of the top substrate, and a cavity is formed below the inductor pack. The inductor pack has a magnetic core, and a first winding and a second winding which pass through the magnetic core. The first power IC die and the second power IC die are electrically connected to the first winding, and the second winding respectively. Heights of the first vertical PCB and the second PCB measured perpendicular to the bottom surface of the top substrate is larger than a height of the inductor pack, so that the cavity is formed between the first vertical PCB and a second vertical PCB.

Abstract: A power supply module comprises an inductor pack, a top substrate disposed above the inductor pack, a first power IC die and a second power IC die disposed above the inductor pack, and a support structure disposed below the inductor pack. The inductor pack has a magnetic core, and a first winding and a second winding which pass through the magnetic core. The top substrate has a bottom surface attached to the inductor pack. The first power IC die is electrically connected to the first winding, and the second power IC die is electrically connected to the second winding. The support structure electrically connects the power supply module to an external circuit. A cavity is formed below the inductor pack for accommodating passive components, and the cavity is at least partially surrounded by the support structure.

Abstract: A switching converter comprises an input terminal for receiving an input voltage, an output terminal for providing an output voltage, an input switching circuit, an energy storage circuit having a capacitor, and a pre-charge circuit. The input switching circuit has a first switch and a second switch coupled in series to form a switch node. The energy storage circuit has a capacitor coupled to the switch node. The pre-charge circuit is coupled between the input terminal and the switch node, having a Zener diode and a resistor coupled in series. A cathode of the Zener diode is coupled to the input terminal. The pre-charge circuit charges the capacitor during startup of the switching converter and stops charging the capacitor based on the input voltage.