Abstract: Apparatuses, devices, and methods for operating a voltage converter are described. A semiconductor device can include a switching circuit and a controller. The switching circuit can include a plurality of switching elements. The controller can determine an operation mode of the switching circuit. In response to the operation mode indicating a two-level operation mode, the controller can program the switching circuit to operate as a two-level voltage converter. In response to the operation mode indicating a three-level operation mode, the controller can program the switching circuit to operate as a three-level converter.

Abstract: According to certain general aspects, the present embodiments relate generally to securing communication between ECUs. Example implementations can include a method of securely transmitting Controller Area Network (CAN) protocol frames via a CAN controller.

Abstract: Systems and methods for operating a wireless power transfer device are described. A circuit can generate a first signal that indicates a voltage at a node between a first high-side (HS) transistor and a first low-side (LS) transistor in a switching converter falling below ground. The circuit can delay a gate-source voltage of a second LS transistor in the switching converter to generate a second signal. The circuit can merge the first signal and the second signal to generate a third signal. A controller can use the third signal to trigger a rising edge of a command signal to turn on the first LS transistor at a specific time. The first LS transistor being turned on at the specific time reduces a diode conduction time of a body diode of the first LS transistor.

Abstract: Systems and methods for demodulating a signal is described. A device can receive a modulated signal that encodes data. The device can sample a voltage of the modulated signal to generate a plurality of samples in digital domain. The device can determine in-phase data and quadrature data of the plurality of samples. The device can determine amplitude data and phase data based on the in-phase data and the quadrature data. The device can decode the amplitude data and phase data into digital symbols that represent the data encoded in the modulated signal.

Abstract: Methods and systems for operating a voltage regulator are described. A integrated circuit can be configured to adjust at least one of a deadtime parameter and a drive strength parameter of a power stage based on at least one of an input voltage being provided to a power stage, a switch node voltage of the power stage, and an output current of the power stage. A controller of the power stage can be further configured to adjust a deadtime of the power stage based on adjustment of the deadtime parameter. The controller can be further configured to adjust a drive strength of the first driver and the second driver based on adjustment of the drive strength parameter.

Abstract: A method and a system may inductively determine a position of a display screen of a computing device. Associated processes may generate a magnetic field by providing an alternating current to a driver coil, and may generate a voltage at a sensor coil in response to the magnetic field. The system and method may additionally include determining a linear position of the display screen by executing an algorithm at a processor. An input to the algorithm may include voltage data associated with the voltage generated at the sensor coil. The linear position of the display screen may correspond to a size of the display screen between a minimum size and a maximum size.

Abstract: A battery charger is described that can support multiple battery applications with a single USB type-C port. An architecture can include a single charger transferring power to multiple battery stacks. The architecture can include a plurality of battery stacks each respectively housed in a distinct electronic device. The architecture is expandable from one charger with one USB type-C port coupled to a plurality of battery stacks, to a plurality of chargers with respective USB type-C ports all coupled to a plurality of battery stacks respectively housed in distinct electronic devices.

Abstract: A wireless power system is disclosed that allows data to be read and written into a wireless power transmission system of a wireless power transmitter through near-field communications (NFC). A method of exchanging data with a power transmission system in the wireless power transmitter and a graphical user interface coupled to a wireless power receiver in communications with the wireless power transmitter includes communicating a data packet with the power transmission system through a near-field communications (NFC) link between a wireless power receiver and the wireless power transmitter; receiving the data packet in the power transmission system; and performing a task defined by a header command code in the data packet.

Abstract: Methods and systems for operating a transceiver are described. A transceiver can include an upconverting mixer, a downconverting mixer, a controller, and an envelope detector. The upconverting mixer can mix an input signal with a local oscillator (LO) signal to generate a transmitter signal. The envelope detector can receive the transmitter signal outputted from the upconverting mixer and output an envelope of the transmitter signal to an output line of the downconverting mixer. The envelope can indicate at least one of a leaked LO signal and an image signal. The controller can receive a calibration parameter that is based on at least one of the leaked LO signal and image signal and calibrate the upconverting mixer based on the calibration parameter.

Abstract: A position sensor, wherein the position sensor detects the movement of a target relative to a sine receiver coil and a cosine receiver coil and generates a corresponding sine signal and a corresponding cosine signal, and a method for error detection of a position sensor.

Abstract: Systems and methods for operating a battery charger are described. A controller can operate a battery charger under a charging mode to use an adapter power to support a system power of the battery charger. The controller can detect the adapter power reaches a maximum, transition the battery charger into a discharging mode to decrease a battery charging current in the battery charger to support the system power and decrease a system voltage at the output of the battery charger. The controller can detect the system voltage is less than a battery voltage of the battery by an offset and transition the battery charger from the discharging mode to a pass-through mode that continues to discharge the battery, where the PTM can cause the battery charger to discharge the battery without performing switching.

Abstract: A position sensor system having at least two receiver coil sets, at least one transmitter coil and a signal conditioning processor, wherein each receiver coil set of the at least two receiver coil sets includes at least two separate receiver coils including a sine receiver coil and a cosine receiver coil, wherein the signal conditioning processor is included in an integrated circuit, and wherein the at least two receiver coil sets, the at least one transmitter coil and the integrated circuit including the signal conditioning processor are located on a printed circuit board.

Abstract: A method includes preparing a substrate; cleaning a chip mounting surface of the substrate; supplying a homogenized die-bonding paste onto the chip mounting surface, and attaching a semiconductor chip on the chip mounting surface via the homogenized die-bonding paste, the semiconductor chip having a front surface, a back surface opposite the front surface, and a first electrode formed on the front surface; curing the homogenized die-bonding paste; electrically connecting the first electrode with a first terminal of the substrate via a first wire; and sealing the semiconductor chip and the first wire with a sealing resin, wherein the homogenized die-bonding paste used in supplying is initially provided as an unstirred die-bonding paste including a plurality of Ag fillers, and wherein, in supplying, the homogenized die-bonding paste is supplied onto the chip mounting surface after the unstirred die-bonding paste along with Ag fillers is stirred for a first predetermined time period.

Abstract: In an embodiment, a semiconductor device is disclosed that includes a wired input/output, a wireless input/output, and a battery. A wired charging path between the wired input/output and the battery includes a first transistor and a second transistor. A wireless charging path between the wireless input/output and the battery includes a third transistor and the second transistor.

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: 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: 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: 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.