Abstract: An apparatus such as a power converter includes a first flying capacitor operative to store a first flying capacitor voltage; a second flying capacitor operative to store a second flying capacitor voltage; an inductor providing coupling between the first flying capacitor and the second flying capacitor; and a network of switches operative to, in accordance with control signals, produce an output voltage via the first flying capacitor voltage and the second flying capacitor voltage.

Abstract: A power converter includes an autotransformer, first switches, and second switches. The autotransformer includes multiple windings. The first switches are coupled between an input node and an output node of the power converter. The second switches are coupled between a reference potential and the output node. Yet further, the first switches are operable to control switching of circuit paths including the multiple windings of the autotransformer. The second switches are operable to convey currents from the multiple windings of the autotransformer through the second switches to the output node.

Abstract: A power converter circuit, including: an unregulated sub-converter; a regulated sub-converter connected to the unregulated sub-converter, wherein the power converter circuit is configured as an input-series-output-parallel (ISOP) non-isolated power converter circuit; and a control circuit operable, during a startup of the power converter circuit, to: control the unregulated sub-converter with a transition from an initial unregulated duty cycle to a nominal unregulated duty cycle, which is higher than the initial unregulated duty cycle; and control the regulated sub-converter with a transition from an initial regulated duty cycle to a nominal regulated duty cycle to maintain an output voltage of the power converter circuit to be lower than a nominal output voltage.

Abstract: A system is provided for overcurrent protection of a multi-phase trans-inductance voltage regulator. The multi-phase trans-inductance voltage regulator comprises a plurality of transformers, each transformer comprising a primary inductor and a secondary inductor. The primary inductor of each transformer is provided between a respective input node and a common output node, and the secondary inductors of the plurality of transformers are connected in series. Each input node is connected to a respective one of a plurality of phase inputs. The system includes a first sensor arrangement configured to measure a current flowing through the secondary inductors. The system also includes a controller configured to generate an overcurrent fault signal based at least in part on the measured current flowing through the secondary inductors.

Abstract: A power supply includes an assembly comprising an inductor and a transformer. The inductor and the transformer are integrated to share a core of magnetic permeable material disposed in the assembly. The power supply further includes an unregulated power converter stage and a regulated power converter stage. The unregulated power converter stage implements use of the transformer. The regulated power converter stage implements use of the inductor. A combination of the regulated power converter stage and the unregulated power converter stage operative to collectively produce an output voltage to power a load.

Abstract: An apparatus such as a power converter includes a first flying capacitor, a second flying capacitor, etc., an inductor, and a network of switches. The network of switches controls conveyance of energy from the multiple flying capacitors to the inductor. The inductor converts the received energy into an output voltage to power a load. A magnitude of the respective voltage on each of the flying capacitors is substantially the same.

Abstract: An apparatus such as a power converter includes a transformer assembly, a first series circuit path, and a second series circuit path. The transformer assembly includes multiple windings such as a first winding and a second winding. The first series circuit path includes a first circuit component disposed in series with a first winding of the multiple windings; the second series circuit path including a second circuit component disposed in series with a second winding of the multiple windings. The first series circuit path is connected in parallel with the second series circuit path.

Abstract: An apparatus such as a power converter includes: a first capacitor; a second capacitor; a network of switches operative to control generation of an output voltage via: i) resonance of the first capacitor and a first transformer winding supplying first current to an output node of the power converter, and ii) resonance of the second capacitor and a second transformer winding supplying second current to an output node of the power converter. The first current may be substantially equal to the second current. The power converter may include additional windings in which other currents are substantially equal.

Abstract: A power supply includes a first power converter stage and a second power converter stage. The first power converter stage includes a first transformer winding; the second power converter stage includes a second transformer winding. The first power converter stage converts an input voltage into an intermediate voltage. The second power converter stage converts the intermediate voltage into first current contributing to generation of the output voltage. A circuit path in the power supply provides coupling of the first transformer winding in the first power converter to the second winding in the second power converter stage. Series connectivity of the first winding and the second winding provided by the circuit path creates a trans-inductance path between the first power converter stage and the second power converter stage.

Abstract: This disclosure includes novel ways of implementing a voltage converter that powers a load. For example, the voltage converter includes a first power converter and a second power converter. The first power converter produces an intermediate voltage and a first output current derived from an input voltage. The first power converter supplies the intermediate voltage to the second power converter. The second power converter produces a second output current based on the intermediate voltage received from the first power converter. An output node of the voltage converter outputs a sum of the first output current and the second output current to produce an output voltage. A power supply can be configured to include any number of multiple voltage converters in parallel to power a load.

Abstract: An apparatus such as a power converter includes a first flying capacitor operative to store a first flying capacitor voltage; a second flying capacitor operative to store a second flying capacitor voltage; an inductor providing coupling between the first flying capacitor and the second flying capacitor; and a network of switches operative to, in accordance with control signals, produce an output voltage via the first flying capacitor voltage and the second flying capacitor voltage.

Abstract: A power supply includes an assembly comprising an inductor and a transformer. The inductor and the transformer are integrated to share a core of magnetic permeable material disposed in the assembly. The power supply further includes an unregulated power converter stage and a regulated power converter stage. The unregulated power converter stage implements use of the transformer. The regulated power converter stage implements use of the inductor. A combination of the regulated power converter stage and the unregulated power converter stage operative to collectively produce an output voltage to power a load.

Abstract: A voltage converter powers a load. The voltage converter includes a first power converter and a second power converter. The first power converter produces an intermediate voltage and a first output current derived from an input voltage. The first power converter supplies the intermediate voltage to the second power converter. The second power converter produces a second output current based on the intermediate voltage received from the first power converter. An output node of the voltage converter outputs a sum of the first output current and the second output current to produce an output voltage.

Abstract: This disclosure includes novel ways of implementing a voltage converter that powers a load. For example, the voltage converter includes a first power converter and a second power converter. The first power converter produces an intermediate voltage and a first output current derived from an input voltage. The first power converter supplies the intermediate voltage to the second power converter. The second power converter produces a second output current based on the intermediate voltage received from the first power converter. An output node of the voltage converter outputs a sum of the first output current and the second output current to produce an output voltage. A power supply can be configured to include any number of multiple voltage converters in parallel to power a load.

Abstract: This document describes techniques and apparatuses directed at reducing inductive-charging power loss. In aspects, a mobile device includes a multi-layer flexible printed circuit board (FPCB) coil that forms a receiver coil having a Litz-wire structure. The FPCB coil includes a multi-trace bundle, having traces systematically routed throughout the different layers of the FPCB coil to reduce eddy current losses.

Abstract: An apparatus such as a power converter includes a first flying capacitor, a second flying capacitor, etc., an inductor, and a network of switches. The network of switches controls conveyance of energy from the multiple flying capacitors to the inductor. The inductor converts the received energy into an output voltage to power a load. A magnitude of the respective voltage on each of the flying capacitors is substantially the same.

Abstract: This document describes techniques and apparatuses directed at reducing inductive-charging power loss. In aspects, a mobile device includes a multi-layer flexible printed circuit board (FPCB) coil that forms a receiver coil having a Litz-wire structure. The FPCB coil includes a multi-trace bundle, having traces systematically routed throughout the different layers of the FPCB coil to reduce eddy current losses.