Voltage regulating circuit, inductor assembly, and voltage regulating device

An inductor assembly, comprising:

• an inductor core and an inductor frame, wherein the inductor core includes an upper magnetic cover, a lower magnetic cover, and at least two magnetic columns,
• wherein each of the at least two magnetic column is disposed between the upper magnetic cover and the lower magnetic cover;
• the inductor frame comprises a top surface, a bottom surface, a first side and a third side opposite to each other, a second side and a fourth side opposite to each other, a winding frame and at least two through grooves;
• the first side, the second side, the third side and the fourth side are disposed between the top surface and the bottom surface;
• the through groove penetrates through the top surface and the bottom surface;
• the winding frame comprises an inductor winding and an additional winding, and the main body of the inductor winding and the main body of the additional winding are wound along the same path;
• the inductor frame further includes an electrical connector Vo+, an electrical connector SW, and an electrical connector Sig;
• the electrical connector Vo+, the electrical connector SW, and the electrical connector Sig are all disposed adjacent to the side surface of the inductor frame;
• the electrical connector Vo+ forms a Vo+ end portion on the bottom surface of the inductor frame, the electrical connector SW forms a SW end portion on the top surface of the inductor frame, and the electrical connector Sig forms a Sig end portion on the top surface and/or the bottom surface of the inductor frame;
• a first end of the inductor winding is electrically connected to an electrical connector SW, a second end of the inductor winding is electrically connected to an electrical connector Vo+, and a first end and a second end of the additional winding are electrically connected to one electrical connector Sig, respectively;
• the magnetic column of the inductor magnetic core passes through the through groove, and the upper magnetic cover and the lower magnetic cover are respectively buckled with the winding frame from the top surface and the bottom surface.

An inductor assembly, comprising:

• an upper magnetic cover, a lower magnetic cover, a plurality of winding columns and a plurality of inductor windings,
• wherein each inductor winding includes a horizontal winding section and two vertical sections, the two vertical section are a SW section and a Vo+ section, respectively;
• the upper magnetic cover and the lower magnetic cover are relatively buckled to form a magnetic core, the magnetic core comprises a top surface, a bottom surface and four side surfaces, each horizontal winding section is wound around a winding column respectively between the upper magnetic cover and the lower magnetic cover, and the SW section and the Vo+ section of each inductor winding are respectively disposed on two adjacent side surfaces of the magnetic core;
• the Vo+ section of each inductor winding is disposed adjacent to the SW section of the next inductor winding;
• the two ends of the horizontal winding section are respectively provided with two protrusions, the two vertical sections are both provided with through holes, and the two protrusions are cooperatively connected to the through holes.

A voltage regulating device, comprising:

• a first circuit substrate, a second circuit substrate, and an inductor assembly;
• wherein the first circuit substrate comprises a through groove, a first pad region, an upper surface and a lower surface opposite to each other, the through groove penetrates through the upper surface and the lower surface, and the first pad region is disposed on the lower surface of the first circuit substrate;
• the second circuit substrate comprises a second pad region, an upper surface and a lower surface opposite to each other, and the second pad region is disposed on the upper surface of the second circuit substrate;
• the inductor assembly comprises an inductor magnetic core, a top surface and a bottom surface opposite to each other, wherein the top surface is provided with at least one top surface end portion, and the bottom surface is provided with at least one bottom surface end portion;
• the top surface end portion is fixed in the first pad region and is electrically connected to the first circuit substrate;
• the bottom surface end portion is fixed in the second pad region and is electrically connected to the second circuit substrate;
• the top surface of the inductor magnetic core is exposed from the top surface of the voltage regulating device by means of a through groove;
• wherein the voltage regulating device further comprises a switch bridge arm and a BGA array, the switch bridge arm is disposed on the upper surface of the first circuit substrate, the switch bridge arm is electrically connected to the top surface end portion through the first circuit substrate and the first pad region;
• the BGA array is disposed on the lower surface of the second circuit substrate, the BGA array is electrically connected to the bottom surface end portion through the second circuit substrate and the second pad region.

A voltage regulating device, comprising:

• at least three voltage regulating units, which are a left-side voltage regulating unit, an intermediate voltage regulating unit and a right-side voltage regulating unit, respectively;
• wherein each of the voltage regulating units comprises a bridge arm unit, an inductor assembly and a BGA unit, and the bridge arm unit, the inductor assembly and the BGA unit in each of the voltage regulating units are electrically connected;
• the bridge arm unit, the inductor assembly, and the BGA unit of the left-side voltage regulating unit are sequentially stacked in a vertical direction;
• the bridge arm unit, the inductor assembly, and the BGA unit of the right-side voltage regulating unit are sequentially stacked in a vertical direction;
• the bridge arm unit and the inductor assembly of the intermediate voltage regulating unit are stacked in a vertical direction;
• the bridge arm unit of the intermediate voltage regulating unit is arranged between the left side bridge arm unit and the right side bridge arm unit, the inductor assembly of the intermediate voltage regulating unit is arranged between the inductor assembly of the left side voltage regulating unit and the inductor assembly of the right side voltage regulating unit;
• the BGA unit of the intermediate voltage regulating unit surrounds the BGA unit of the left side voltage regulating unit and the BGA unit of the right side voltage regulating unit.

A voltage regulating device, comprising:

• a bridge arm unit and an inductor assembly, wherein the bridge arm unit and the inductor assembly are electrically connected and stacked in a vertical direction;
• wherein the bridge arm unit includes a first switch bridge arm, a second switch bridge arm, a third switch bridge arm, and a fourth switch bridge arm, each of the switch bridge arms includes a pin SW;
• wherein the inductor assembly comprises a magnetic core and a winding;
• a vertical projection plane of the magnetic core is on the horizontal plane where the bridge arm unit is located, and each pin SW is arranged along the outer sides of the vertical projection plane.