Abstract: A laminate transformer includes a multilayer substrate having at least first, second, third, and fourth metal layers. The second metal layer and the third metal layer are separated by a voltage barrier having a thickness. A first multiloop coil has at least a first loop on the first metal layer and at least a second loop on the second metal layer. A second multiloop coil has at least a third loop on the third metal layer and at least a fourth loop on the fourth metal layer. A partial EMI shield for the first multiloop coil is on the second metal layer. A partial EMI shield for the second multiloop coil is on the third metal layer.

Abstract: A circuit includes a high-side driver having a high-side slew control input, a high-side drive input and a high-side drive output. A low-side driver has a low-side slew control input, a low-side drive input and a low-side drive output. Drive control circuitry has a high-side drive control output, a low-side drive control output, and a slew control output. The high-side drive control output is coupled to the high-side drive input, the low-side drive control output is coupled to the low-side drive input. The slew control output is coupled to at least one of the high-side slew control input and the low-side slew control input, and the drive control circuitry is configured to provide a slew control signal at the slew control output. The high-side and/or low-side driver is configured to modulate a slew rate of a drive signal at a respective drive output thereof based on the slew control signal.

Abstract: A laminate transformer includes a multilayer substrate having at least first, second, third, and fourth metal layers. The second metal layer and the third metal layer are separated by a voltage barrier having a thickness. A first multiloop coil has at least a first loop on the first metal layer and at least a second loop on the second metal layer. A second multiloop coil has at least a third loop on the third metal layer and at least a fourth loop on the fourth metal layer. A partial EMI shield for the first multiloop coil is on the second metal layer. A partial EMI shield for the second multiloop coil is on the third metal layer.

Abstract: An apparatus includes a modulation control circuit and a modulated signal generation circuit. The modulation control circuit has a control output, the modulation control circuit configured to provide, at the control output, a control signal indicative of a frequency adjustment rate of a modulated signal. The modulated signal generation circuit has a control input and an output, the control input coupled to the control output, the modulated signal generation circuit configured to provide the modulated signal at the output and adjust a modulation frequency of the modulated signal at the modulation frequency adjust rate responsive to the control signal.

Abstract: A circuit includes a high-side driver having a high-side slew control input, a high-side drive input and a high-side drive output. A low-side driver has a low-side slew control input, a low-side drive input and a low-side drive output. Drive control circuitry has a high-side drive control output, a low-side drive control output, and a slew control output. The high-side drive control output is coupled to the high-side drive input, the low-side drive control output is coupled to the low-side drive input. The slew control output is coupled to at least one of the high-side slew control input and the low-side slew control input, and the drive control circuitry is configured to provide a slew control signal at the slew control output. The high-side and/or low-side driver is configured to modulate a slew rate of a drive signal at a respective drive output thereof based on the slew control signal.

Abstract: A modulation device may include a variable burst regulator and a current-driven clock generator. The modulation device may include a first output terminal configured to provide a modulated voltage for an operating frequency over a modulation period. The current-driven clock generator may include a second input terminal configured to receive a buffered version of the modulated voltage. The current-driven clock generator may include a second output terminal configured to provide a modulated current during the modulation period. The operating frequency may be proportional to the modulated current. The operating frequency may control the operating frequency over the modulation period.

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 modulation device may include a variable burst regulator and a current-driven clock generator. The modulation device may include a first output terminal configured to provide a modulated voltage for an operating frequency over a modulation period. The current-driven clock generator may include a second input terminal configured to receive a buffered version of the modulated voltage. The current-driven clock generator may include a second output terminal configured to provide a modulated current during the modulation period. The operating frequency may be proportional to the modulated current. The operating frequency may control the operating frequency over the modulation period.

Abstract: An apparatus includes a substrate and first through fourth conductive layers. The first conductive layer is on the substrate and includes a first electromagnetic interference (EMI) shield. The second conductive layer is over the first conductive layer opposite the substrate and includes a first winding of a transformer. The third conductive layer is over the second conductive layer opposite the first conductive layer and includes a second EMI shield. The fourth conductive layer is over the third conductive layer opposite the second conductive layer and includes a second winding of the transformer.

Abstract: A voltage converter includes a switch network, a rectifier, and a transformer coupled between the switch network and the rectifier. The voltage converter includes an adaptive ON-time generation circuit having a control input and a control output, the control input. The adaptive ON-time generation circuit is configured to receive a WAKE signal to turn ON the switch network, generate a signal indicative of an OFF time of the switch network, and determine an ON time for the switch network based on the signal indicative of the OFF time.

Abstract: An apparatus includes a substrate. A first conductive layer is on the substrate. The first conductive layer includes a first set of conductive segments and a second set of conductive segments. A second conductive layer is over the first conductive layer opposite the substrate. The second metal layer includes a third set of conductive segments and a fourth set of conductive segments. A first set of vias is between the first set of conductive segments and the third set of conductive segments. The first set of conductive segments, the third set of conductive segments, and the first set of vias form a first transformer winding. A second set of vias is between the second set of conductive segments and the fourth set of conductive segments. The second set of conductive segments, the fourth set of conductive segments, and the second set of vias form a second transformer winding.

Abstract: A laminate transformer includes a multilayer substrate having at least first, second, third, and fourth metal layers. The second metal layer and the third metal layer are separated by a voltage barrier having a thickness. A first multiloop coil has at least a first loop on the first metal layer and at least a second loop on the second metal layer. A second multiloop coil has at least a third loop on the third metal layer and at least a fourth loop on the fourth metal layer. A partial EMI shield for the first multiloop coil is on the second metal layer. A partial EMI shield for the second multiloop coil is on the third metal layer.

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.