Abstract: A circuit that is capable of generating a negative voltage on a negative voltage supply node. The circuit includes a negative voltage generation circuit, an oscillator and an oscillator control signal generator. The negative voltage generation circuit generates a negative voltage on the negative voltage supply node in response to receiving a signal from the oscillator. The negative voltage generated by the negative voltage generation circuit depends upon the frequency of the signal from the oscillator. The oscillator control signal generator controls the frequency of the signal from the oscillator by sensing the negative voltage present on the negative voltage supply node, and by increasing or decreasing the frequency of the signal from the oscillator accordingly. Thus, charge is replenished to the negative voltage supply node to more closely match the drawing of charge from that negative voltage supply node, thereby more accurately generating the negative voltage.

Abstract: An electronic device includes a multilevel lamination structure having a core layer, dielectric layers and conductive features formed in metal layers on or between respective ones or pairs of the dielectric layers. The core layer and the dielectric layers extend in respective planes of orthogonal first and second directions and are stacked along an orthogonal third direction. The conductive features include a first patterned conductive feature having multiple conductive turns in each of a first pair of the metal layers to form a first winding having a first turn and a final turn adjacent to one another in the same metal layer of the first pair, and a second patterned conductive feature having multiple conductive turns in a second pair of the metal layers to form a second winding having a first turn and a final turn.

Abstract: A circuit that includes a power transistor and at least one sense transistor and that uses the control drive terminal to not only control the power transistor and the sense transistor, but also to provide power to a current sense circuit. The control nodes of the power transistor and sense transistor are connected, and the input nodes of the power transistor and the sense transistor are also connected. The current sense circuit is connected to the sense transistor control node and is configured to detect current passing through the sense transistor. The current sense circuit is also connected to the control drive terminal and is configured to draw power from the control drive terminal when a high control signal is present on the control drive terminal. Accordingly, the current sense circuit does not require an independent fixed high voltage supply in order to operate.

Abstract: Desaturation protection for a power field-effect transistor. The desaturation protection circuit includes the power field-effect transistor and a sense field-effect transistor that each have threshold voltages that are approximately the same. The sense field-effect transistor shares a gate terminal with the power field-effect transistor and shares a drain terminal with the power field-effect transistor. The circuit also includes a comparator having a first input terminal connected to a source terminal of the sense field-effect transistor, and having a second input terminal connected to a voltage source that is an offset voltage below a supply voltage. The circuit also includes a pull-up network configured to cause the output of the comparator to represent a state of whether the sense field-effect transistor is on or off, and can directly drive the turning off of the power transistor.

Abstract: An electronic device includes a multilevel lamination structure having a core layer, dielectric layers and conductive features formed in metal layers on or between respective ones or pairs of the dielectric layers. The core layer and the dielectric layers extend in respective planes of orthogonal first and second directions and are stacked along an orthogonal third direction. The conductive features include a first patterned conductive feature having multiple conductive turns in each of a first pair of the metal layers to form a first winding having a first turn and a final turn adjacent to one another in the same metal layer of the first pair, and a second patterned conductive feature having multiple conductive turns in a second pair of the metal layers to form a second winding having a first turn and a final turn.

Abstract: A method includes performing a printing process that deposits a magnetic paste onto a first side and into an opening of a laminate; curing the magnetic paste to form a first transformer core piece having a first portion along the first side and a second portion filling the opening of the laminate; joining a second transformer core piece to a side of the second portion of the first transformer core piece to form a transformer. A transformer includes a laminate; a first core piece; and a second core piece, the first core piece comprising: a cured magnetic paste, a first portion along a side of the laminate, and a second portion filling an opening of the laminate, the second core piece extending along a side of the second portion of the first transformer core piece, and the laminate having windings that encircle the opening.

Abstract: A packaged electronic device includes first conductive leads and second conductive leads at least partially exposed to an exterior of a package structure, and a multilevel lamination structure in the package structure. The multilevel lamination structure includes a first patterned conductive feature having multiple turns in a first level to form a first winding coupled to at least one of the first conductive leads in a first circuit, a second patterned conductive feature having multiple turns in a different level to form a second winding coupled to at least one of the second conductive leads in a second circuit isolated from the first circuit, and a conductive shield trace having multiple turns in a second level spaced apart from and between the first patterned conductive feature and the second patterned conductive feature, the conductive shield trace coupled in the first circuit.

Abstract: A method includes performing a printing process that deposits a magnetic paste onto a first side and into an opening of a laminate; curing the magnetic paste to form a first transformer core piece having a first portion along the first side and a second portion filling the opening of the laminate; joining a second transformer core piece to a side of the second portion of the first transformer core piece to form a transformer. A transformer includes a laminate; a first core piece; and a second core piece, the first core piece comprising: a cured magnetic paste, a first portion along a side of the laminate, and a second portion filling an opening of the laminate, the second core piece extending along a side of the second portion of the first transformer core piece, and the laminate having windings that encircle the opening.

Abstract: In examples, a method of manufacturing a transformer device comprises providing a first magnetic member and providing a laminate member containing primary and secondary transformer windings wound around an orifice extending through the laminate member. The method further comprises positioning a build up film abutting the laminate member. The method also comprises positioning at least a portion of a second magnetic member in the orifice. The method further comprises heat pressing at least one of the first and second magnetic members such that a distance between the first and second magnetic members decreases and such that the build-up film melts, thereby producing a transformer device.

Abstract: A transformer respectively includes a first isolation barrier, a first inductive element, a second isolation barrier, and a second inductive element. The first isolation barrier and second isolation barrier each comprise multiple isolation layers. The transformer also includes magnetic material including a top magnetic portion disposed above the first isolation barrier. The transformer also includes a bottom magnetic portion disposed below the second inductive element; The transformer further includes an intermediary magnetic portion extending from the top magnetic portion to the bottom magnetic portion via a through-hole within the first isolation barrier, first inductive element, second isolation barrier, and second inductive element. The transformer yet further includes at least one lateral magnetic portion extending from the top magnetic portion to the bottom magnetic portion.

Abstract: A packaged electronic device includes first conductive leads and second conductive leads at least partially exposed to an exterior of a package structure, and a multilevel lamination structure in the package structure. The multilevel lamination structure includes a first patterned conductive feature having multiple turns in a first level to form a first winding coupled to at least one of the first conductive leads in a first circuit, a second patterned conductive feature having multiple turns in a different level to form a second winding coupled to at least one of the second conductive leads in a second circuit isolated from the first circuit, and a conductive shield trace having multiple turns in a second level spaced apart from and between the first patterned conductive feature and the second patterned conductive feature, the conductive shield trace coupled in the first circuit.

Abstract: In examples, a method of manufacturing a transformer device comprises providing a first magnetic member and providing a laminate member containing primary and secondary transformer windings wound around an orifice extending through the laminate member. The method further comprises positioning a build up film abutting the laminate member. The method also comprises positioning at least a portion of a second magnetic member in the orifice. The method further comprises heat pressing at least one of the first and second magnetic members such that a distance between the first and second magnetic members decreases and such that the build-up film melts, thereby producing a transformer device.

Abstract: An apparatus has a laminate substrate that has a first surface and an opposite second surface. A laminate transformer is located within the laminate substrate between the first surface and the second surface. The transformer has a first coil adjacent the first surface and a second coil adjacent the second surface. A magnetic core element on the first surface overlaps a portion of the first coil. A lead frame on the first surface is spaced apart from the magnetic core element. A portion of the lead frame overlaps a portion of the first coil to provide a thermal conductive path.

Abstract: An electronic device includes a multilevel lamination structure having a core layer, dielectric layers and conductive features formed in metal layers on or between respective ones or pairs of the dielectric layers. The core layer and the dielectric layers extend in respective planes of orthogonal first and second directions and are stacked along an orthogonal third direction. The conductive features include a first patterned conductive feature having multiple conductive turns in each of a first pair of the metal layers to form a first winding having a first turn and a final turn adjacent to one another in the same metal layer of the first pair, and a second patterned conductive feature having multiple conductive turns in a second pair of the metal layers to form a second winding having a first turn and a final turn.

Abstract: A packaged electronic device includes first conductive leads and second conductive leads at least partially exposed to an exterior of a package structure, and a multilevel lamination structure in the package structure. The multilevel lamination structure includes a first patterned conductive feature having multiple turns in a first level to form a first winding coupled to at least one of the first conductive leads in a first circuit, a second patterned conductive feature having multiple turns in a different level to form a second winding coupled to at least one of the second conductive leads in a second circuit isolated from the first circuit, and a conductive shield trace having multiple turns in a second level spaced apart from and between the first patterned conductive feature and the second patterned conductive feature, the conductive shield trace coupled in the first circuit.

Abstract: In examples, a method of manufacturing a transformer device comprises providing a first magnetic member and providing a laminate member containing primary and secondary transformer windings wound around an orifice extending through the laminate member. The method further comprises positioning a build up film abutting the laminate member. The method also comprises positioning at least a portion of a second magnetic member in the orifice. The method further comprises heat pressing at least one of the first and second magnetic members such that a distance between the first and second magnetic members decreases and such that the build-up film melts, thereby producing a transformer device.

Abstract: A microelectronic device includes a magnetic component having a first magnetic core segment and a second magnetic core segment, with a winding lamina between them. The first magnetic core segment includes a winding support portion with ferromagnetic material. The winding lamina is attached to the winding support portion. The first magnetic core segment also includes an extension portion with ferromagnetic material extending from the winding support portion. The winding lamina has winding loops of electrically conductive material that surround ferromagnetic material. A filler material is formed between the winding lamina and the first magnetic core segment, contacting both the winding lamina and the first magnetic core segment. The second magnetic core segment is attached to the extension portion of the first magnetic core segment. The second magnetic core segment includes ferromagnetic material. The winding loops are electrically coupled to external leads through electrical connections.

Abstract: In some examples, an electronic device comprises a first magnetic member, a first adhesive layer abutting the first magnetic member, a second magnetic member, a second adhesive layer abutting the second magnetic member, and a laminate member between the first and second adhesive layers. The laminate member comprises first and second transformer coils, an electromagnetic interference (EMI) shield coil, and a set of thermally conductive members coupled to the EMI shield coil and extending in three dimensions. At least some of the thermally conductive members extend vertically through a thickness of the laminate member so as to be exposed to top and bottom surfaces of the laminate member. The electronic device includes a thermally conductive component coupled to at least one thermally conductive member in the set of thermally conductive members.

Abstract: In some examples, an electronic device comprises a first magnetic member, a first adhesive layer abutting the first magnetic member, a second magnetic member, a second adhesive layer abutting the second magnetic member, and a laminate member between the first and second adhesive layers. The laminate member comprises first and second transformer coils, an electromagnetic interference (EMI) shield coil, and a set of thermally conductive members coupled to the EMI shield coil and extending in three dimensions. At least some of the thermally conductive members extend vertically through a thickness of the laminate member so as to be exposed to top and bottom surfaces of the laminate member. The electronic device includes a thermally conductive component coupled to at least one thermally conductive member in the set of thermally conductive members.

Abstract: A method includes performing a printing process that deposits a magnetic paste onto a first side and into an opening of a laminate; curing the magnetic paste to form a first transformer core piece having a first portion along the first side and a second portion filling the opening of the laminate; joining a second transformer core piece to a side of the second portion of the first transformer core piece to form a transformer. A transformer includes a laminate; a first core piece; and a second core piece, the first core piece comprising: a cured magnetic paste, a first portion along a side of the laminate, and a second portion filling an opening of the laminate, the second core piece extending along a side of the second portion of the first transformer core piece, and the laminate having windings that encircle the opening.