Abstract: A filter circuit for use with a system configured to be coupled with an electrical load, the filter circuit comprising a first filter, wherein the first filter is configured to receive a first voltage and provide an output voltage, the output voltage being the first voltage after filtering by the first filter, and the filter circuit is configured to adjust the bandwidth of the first filter in response to a load transient.

Abstract: Systems and methods for operating a driver circuit are described. In a first region of a transition from an input signal to an output signal, a circuit can control a slew rate of the output signal to a first rate. The first region can terminate prior to the output signal reaching a predefined threshold voltage. In a second region of the transition, the circuit can reduce the slew rate of the output signal to a second rate lower than the first rate. The output signal crosses the predefined threshold voltage in the second region. In a third region of the transition, the circuit can increase the slew rate of the output signal to a third rate greater than the second rate. The transition can complete in the third region. The circuit can output the output signal to drive a transistor in an output drive stage of the driver circuit.

Abstract: Structures, devices, and methods for wireless power transfer systems are described. A structure can include a plurality of strands arranged into a first coil layer and a second coil layer. The plurality of strands can be formed on a parallel path surrounding a center of the structure. The plurality of strands can extend away from the center on the first coil layer. The plurality of strands can extend towards the center on the second coil layer. For every fixed interval along a length of the structure, a first strand among the plurality of strands can be looped from the first coil layer to the second coil layer and a second strand among the plurality of strands can be looped from the second coil layer to the first coil layer.

Abstract: A signal amplifier includes a driver and a network of switches forming a power converter coupled to a H-bridge circuit. The power converter has a flying capacitor and an inductor. The H-bridge circuit receives a converted voltage from the power converter and applies an output modulated voltage to a load, for instance a loudspeaker. The driver drives the network of switches in a neutral state, a first state and a second state. In the neutral state no voltage is applied to the load. In the first state, an input voltage supply and the inductor are serially coupled, and the flying capacitor is coupled in parallel with the serially coupled input voltage supply and inductor. In the second state, the flying capacitor is coupled in series with at least one of the input voltage supply and the inductor. The signal amplifier may be a multi-level class D or class H amplifier.

Abstract: Systems and methods for detecting a plunger movement condition with respect to a solenoid coil are described. A method may include generating a first derivative signal waveform of a current flowing in the solenoid coil, identifying whether there is at least one zero crossing point in the first derivative signal waveform, and detecting the plunger movement condition according to an identification result indicating whether there is at least one zero crossing point in the first derivative signal waveform.

Abstract: Apparatuses, devices, and methods for operating a multi-level voltage converter are described. A semiconductor device can include a circuit, where the circuit can include a plurality of current sources. The circuit can be configured to measure a flying capacitor voltage across a flying capacitor of a multi-level voltage converter. The circuit can be further configured to compare the flying capacitor voltage with a voltage level equivalent to an intermediate voltage that is between ground and an input voltage being provided to the multi-level voltage converter. The circuit can be further configured to, based on a result of the comparison, switch a current source among the plurality of current sources to maintain the flying capacitor voltage at the intermediate voltage.

Abstract: A data processing device includes: an input data determining unit configured to determine whether or not each of binarized input data is a predetermined value; a storage unit configured to store a plurality of coefficients and coefficient address information including information related to coefficient addresses where the plurality of coefficients are stored; a control unit configured to read the coefficient address from the storage unit based on a determination result of the input data determining unit and read the coefficient from the storage unit based on the coefficient address; and an arithmetic unit configured to execute an arithmetic operation related to the coefficient acquired by the control unit.

Abstract: A wireless power apparatus may include a power receiver having an elongated core member with a long axis and a receiver conductor wound spirally around the elongated core member to form an elongated receiver coil, the power receiver configured to receive power from a power transmitter having a transmitter conductor being wound circularly around a center point and disposed in a plane to form a planar transmitter coil, the planar transmitter coil configured to be connected to an alternating current power source to wirelessly transmit power, the planar transmitter coil having a transmitter coil radial axis starting at the center point and defining a transmitting region from an inner edge of the planar transmitter coil to an outer edge of the planar transmitter coil along the transmitter coil radial axis.

Abstract: According to an aspect, a bias controller for biasing a power amplifier in an electronic system comprising, a current sensor operative to sense a current flowing through the power amplifier, the current sensor exhibiting an offset error characteristic that is non linear over a first range of power supply voltages and a first set of offsets matching with the offset error characteristic over a second range of power supply voltages that are within the first range of power supply voltages, in that, the first set of offsets are applied for correcting the offset errors of the current sensor when the power amplifier is subjected to the second range of power supply voltages.

Abstract: Structures, devices, and methods for wireless power transfer systems are described. A structure can include a plurality of strands a plurality arranged into a coil layer. For every fixed interval along a length of the structure, the plurality of strands can be folded at a lateral angle and vertically inverted in response to being folded at the lateral angle. The plurality of strands being folded can cause the plurality of strands to surround a center of the structure in a parallel path.

Abstract: A receiver exposed to a magnetic field with a specified carrier frequency in the RF frequency area and configured to extract an internal clock signal for processing of data with a receiver IC. The receiver includes an antenna configured to receive an antenna signal and a tuning circuit and configured to provide a first received signal at a first pin of the receiver IC and a second receiver signal at a second pin of the receiver IC. The receiver IC includes a harvesting stage configured to rectify a differential received signal provided between the first pin and the second pin of the receiver IC and configured to provide a supply voltage referenced to a ground potential for the receiver IC, and a clock extraction stage configured to provide a first threshold level to switch the internal clock signal with a rectangular signal shape between high and low potential.

Abstract: A communications controller is disclosed. The communications controller includes a data transfer unit and a protocol engine. The communications controller further includes a circuit configured to control transfer of data from the data transfer unit to the protocol engine in dependence upon a process identifier which identifies a process entity requiring the protocol engine to transmit data for the process entity.

Abstract: In an embodiment, an apparatus an apparatus including a memory module is described. The memory module can include a plurality of memory ranks and a register clock driver (RCD) coupled to the plurality of memory ranks. The RCD can include a receiver configured to receive a chip select signal for selecting one or more memory ranks. The RCD can further include a logic circuit coupled to the receiver, and an output driver coupled to the logic circuit. The RCD can further include a loopback circuit configured to sample the chip select signal from one or more of a first sampling point between the receiver and the logic circuit and a second sampling point between the logic circuit and the output driver.

Abstract: A power converter including an inductor, a first power switch, a second power switch, a third power switch, a fourth power switch, a sixth power switch, a first flying capacitor, a third flying capacitor, a seventh power switch, an eighth power switch, a ninth power switch, a tenth power switch, a twelfth power switch, a second flying capacitor, and a fourth flying capacitor.

Abstract: Systems and methods for skew compensation in a push-pull driver are described. A device can include a first circuit configured to output a skew measurement of an output driver stage in a driver circuit. The device can further include a second circuit configured to determine a first skew parameter based on the skew measurement and apply a first bias that is dependent on the skew measurement to drive a high-side transistor in the output driver stage. The device can further include a third circuit configured to determine a second skew parameter based on the skew measurement and apply a second bias that is dependent on the skew measurement to drive a low-side transistor in the output driver stage. The first bias and the second bias can be complementary.

Abstract: Systems and devices for signal arbitration are described. A first asynchronous circuit can receive and sanitize a first non-persistent signal representing a first request to generate a first persistent signal. A second asynchronous circuit can receive and sanitize a second non-persistent signal representing a second request to generate a second persistent signal. A mutual exclusive circuit can arbitrate between the first persistent signal and the second persistent signal and output a grant signal to issue a grant. A control circuit can control an operation mode of the first and second asynchronous circuits based on a control signal, a first grant signal indicating a grant status of the first request, a second grant signal indicating a grant status of the second request, the first persistent signal and the second persistent signal.

Abstract: A controller for controlling a power stage having one or more phases is presented. The controller includes a reference circuit that generates a reference signal; a ramp generator generating a feedback ramp signal based on a feedback signal of the power stage; and a modulator generating a control signal for controlling at least one phase of the power stage. The control signal may include a series of pulses in which each pulse is associated with a corresponding phase of the power stage.

Abstract: A power converter controller is presented. The controller includes a ramp generator for generating a ramp signal and a ramp adjuster. The ramp adjuster compares a feedback signal of the converter with a threshold signal to obtain a comparison signal, and to adjust an amplitude of the ramp signal based on the comparison signal. Also presented is a constant on time COT power converter including the above controller.

Abstract: An apparatus for generating a digital signal that is dependent on an average slope of a first current flowing through a circuit element during a sample period, the apparatus comprising a delta-sigma modulator configured to sense the first current during the sample period, and generate the digital signal using the sensed first current

Abstract: A wiring substrate includes: a first insulating layer; a ground plane formed on the first insulating layer; a second insulating layer formed on the first insulating layer such that the ground plane is covered with the second insulating layer; a first signal wiring formed on the second insulating layer; a third insulating layer formed on the second insulating layer such that the first signal wiring is covered with the third insulating layer; and a second signal wiring formed on the third insulating layer and electrically connected with the first signal wiring. The first signal wiring is arranged in a region overlapping with a portion of a heat radiating plate. The second signal wiring is not arranged in the region. The ground plane has an opening portion located at a position overlapping with the first signal wiring. The opening portion is formed so as to extend along the first signal wiring.