Abstract: A fractional frequency-divider circuit is disclosed. The fractional frequency-divider circuit includes a phase generation circuit that receives an input clock signal that has a first frequency, and generates multiple phase signals using the input clock signal. The fractional frequency-divider circuit also includes a phase selection circuit that selects different ones of the multiple phase signals at different times to generate an output clock signal with a second frequency such that a ratio of the first frequency to the second frequency is a non-integer value.

Abstract: Techniques, circuits, and systems related to a multicore rotary traveling wave oscillator (RTWO) are provided. The multicore RTWO includes at least two metal layers and multiple RTWO cores, such that each core comprises a set of differential signal conductors that are interleaved across the metal layers to optimize space and reduce parasitic effects. The relative positional configuration of these differential signal conductors varies across a range of directionalities and/or orientations. In embodiments, an oscillator output signal is generated by the multicore RTWO; the frequency of this oscillator output signal is adjusted based on a comparison of its phase with that of a reference signal, such as within a phase locked loop circuit.

Abstract: An LC (inductor-capacitor) oscillator includes a first NMOS (n-channel metal oxide semiconductor) transistor, a first PMOS (p-channel metal oxide semiconductor) transistor, a second NMOS transistor, and a second PMOS transistor, wherein: the source of the first NMOS transistor is shorted to the source of the first PMOS transistor; the source of the second NMOS transistor is shorted to the source of the second PMOS transistor; the first NMOS transistor and the second NMOS transistor are cross coupled via a first gate inductor and a first drain inductor; the first and second PMOS transistors are cross coupled via a second gate inductor and a second drain inductor; the first NMOS transistor and the first PMOS transistor are coupled via a first gate capacitor and a first drain capacitor; and the second NMOS transistor and the second PMOS transistor are coupled via a second gate capacitor and a second drain capacitor.

Abstract: The present description concerns an electronic oscillator comprising a resonator coupled in parallel to at least one active circuit, the resonator comprising two electrodes coupled to separate variable capacitive elements forming a charge capacitive element of the electronic oscillator, and a control device configured to independently control the values of the variable capacitive elements.

Abstract: A wireless power transmission system wirelessly transmits power from a power transmission apparatus to a power reception apparatus. The system performs detection processing using a first detection method for detecting an object different from the power reception apparatus. The system determines whether a predetermined condition related to a state of at least either one of the power transmission apparatus and the power reception apparatus is satisfied. Then, the system performs object detection processing using a second detection method, different from the first detection method, according to a result of the determination regarding whether the predetermined condition is satisfied.

Abstract: Systems and methods for managing loads on a power grid are provided. In some embodiments, the load control system includes one or more power sources connected to a power grid. A method includes determining, by a first genset connected to a power grid, a power average at a first rate, and generating, by the first genset, a filtered power average. The filtered average includes the power average at a second rate. The filtered power average is used in the control algorithm to balance the load share of power sources on the power grid.

Abstract: There is provided a piezoelectric stack, including: a substrate; an oxide film on the substrate, containing zinc and oxygen as main elements; an electrode film on the oxide film; and a piezoelectric film on the electrode film, being an alkali niobium oxide film containing potassium, sodium, niobium, and oxygen and having a perovskite structure.

Abstract: A vibrator device includes a vibrator element having a base part, and a detection arm and a drive arm as a plurality of vibrating arms extending in a B direction as a first direction from the base part, a base body, and a support substrate configured to support the vibrator element with respect to the base body, wherein the support substrate includes a base-body fixation part to be fixed to the base body, an element support part configured to support the base part of the vibrator element, and a beam part configured to couple the base-body fixation part and the element support part to each other, and the support substrate has a plurality of recessed parts corresponding to the plurality of vibrating arms in an area which is located at a side of a surface opposed to the vibrator element, and on which at least a part of the vibrating arms overlaps in a plan view.

Abstract: Multi-throw or multi-pole switching systems and methods are provided for providing modular switching combinations for enabling flexible home energy management. A switching system comprises an energy management system configured to switch between a plurality of energy sources (e.g., a utility, backup energy source(s) and energy storage component(s)) automatically/manually to enable flexible configurations thereof. The switching system further comprises one or more modular transfer switches configured to add to the energy management system one or more energy sources. If a module is made of n poles then adding each module can add n-1 energy resources. The one or more modular transfer switches are multi-throw or multi-pole switches.

Abstract: A renewable energy generation system includes a drive motor, a flywheel in mechanical communication with the drive motor, a generator in mechanical communication with the flywheel, a charge controller in electrical communication with the generator, a plurality of charge controller switches in electrical communication with the charge controller, a plurality of batteries in electrical communication with a respective charge controller switch, and a power management module in electrical communication with the plurality of charge controller switches. The drive motor effectuates rotation of the flywheel to generate stored rotational energy which is transferred to the generator as a load is placed upon the generator to maintain a constant speed of the drive motor. The power management module selectively opens or closes a charge controller switch to permit or inhibit the flow of electrical energy to a respective battery to reduce the electrical load placed upon the generator and drive motor.

Abstract: A semiconductor burn-in board configured for insertion into a chamber of a semiconductor burn-in machine includes a power regulator board and a testing board. The power regulator board includes a main power connector configured to receive main power from a semiconductor burn-in machine, a plurality of power supplies each configured to receive the main power from the main power connector and convert the main power to test power, and a pair of test power connectors for each power supply. The testing board is attached to the power regulator board and includes a plurality of device testing units. Each device testing unit is configured to receive the test power from at least one of the power supplies through at least one pair of the test power connectors and apply test signals to a semiconductor device received in the device testing unit.

Abstract: A semiconductor integrated circuit device with a signal processing circuit configured to process a received signal, includes: a failure detection circuit configured to detect a failure within the semiconductor integrated circuit device; and an output terminal, wherein if the failure is not detected by the failure detection circuit, an output signal of the signal processing circuit is output externally from the output terminal, and wherein if the failure is detected by the failure detection circuit, a command notifying details of the failure is output externally from the output terminal.

Abstract: A piezoelectric device includes a first substrate including a first surface on which piezoelectric elements and a common terminal coupled to the piezoelectric elements are placed, a second substrate including a second surface on which a common connecting terminal coupled to a control circuit is placed, a third substrate placed between the first substrate and the second substrate and including a third surface joined to the first surface and a fourth surface facing the second surface, and bonding portions bonding the second substrate and the third substrate by an adhesive, wherein the third substrate includes a first through hole penetrating from the third surface to the fourth surface and a first through electrode provided in the first through hole and coupled to the common terminal, the common connecting terminal is coupled to the first through electrode and electrically coupled to the common terminal via the first through electrode, and the second substrate includes a wall suppressing an outflow of the adhes

Abstract: Methods and systems for charging an electric vehicle (EV) are described herein. An EV may require additional battery power to reach a charging station. A remote server in communication with the EV or an on-board computer or mobile device in the EV may obtain data to determine a location for the EV to meet a charging vehicle. The charging vehicle may be dispatched to meet the EV and deliver power to it, enabling the EV to reach a charging station or other destination. In some examples, the charging vehicle may deliver power to the EV while both vehicles are stationary. In other examples, the charging vehicle may couple to the EV while both vehicles are in motion.

Abstract: A method for enforcing phase coherency in a self-synchronizing system with multiple frequency dividers includes synchronizing an asynchronous reset to a first output of a first divider to generate a global reset, wherein the first output is generated by dividing a Voltage Controlled Oscillator (VCO) output of a VCO into a plurality of phases including a common phase. The global reset is applied to each of at least a second divider and a third divider to temporally align the first output during the common phase with a second output of the second divider and a third output of the third divider, wherein the second output and the third output are generated by dividing the VCO output by the respective second divider and the third divider, and applying the global reset enables a respective state transition on the second output and the third output beginning during the common phase.

Abstract: A system and associated method models behavior of an unbalanced distribution system using a current-voltage (IVACOPF) formulation. Untransposed distribution lines, shunt elements of distribution lines, and detailed representation of distribution transformers and DERs are modeled. The system provides detailed modeling of distribution system including mutual impedances, shunt elements, 3-phase to 1-phase lines. The model has multiple applications for distribution system management, planning, and operation.

Abstract: A quantum device includes: oscillator groups; circulators; and a transmission path common to the circulators. Each of the oscillator groups includes one or more oscillators having frequency variability. The one or more oscillators are connected to one port of one circulator of the circulators. The one circulator is common to the one or more oscillators. Each of the circulators is arranged on the transmission path. Each of the circulators is configured to: transmit a signal from a first end of the transmission path to the oscillator groups; transmit a signal from any of the oscillator groups to a second end of the transmission path; block a signal from the second end so as not to transmit the signal to the oscillator group; and block a signal from any of the oscillator groups so as not to transmit the signal to the first end.

Abstract: Systems, apparatuses, and methods for detecting a foreign object on a wireless power charging region are described. A circuit can detect an object inductively coupled to a wireless power transmitter. The circuit can further measure an input parameter prior to a power transfer stage, the input parameter can be one of an input current and an input power. The circuit can further compare the measured input parameter with a predetermined value. The circuit can further determine whether the object is a foreign object or the wireless power receiver based on a result of the comparison between the measured input parameter with the predetermined value.

Abstract: A processing system for a motor vehicle includes a first and a second control platform; wherein a control platform has a motherboard having a plurality of slots and a switch; an expansion bus that connects the switch to the slots; a first plug-in card having a processing device; and a second plug-in card. The second plug-in cards are connected to each other by way of a connection cable and are configured to couple the expansion buses to each other.

Abstract: Clock frequency-drift compensation is described for a clock generator. In an example, an oscillator circuit includes a clock generator configured to generate an output clock signal with a clock frequency, a first variable resistor coupled to the clock generator to vary the clock frequency, and a second variable resistor. A voltage divider has a reference resistor and the second variable resistor. The voltage divider is configured to generate a reference stress voltage between the reference resistor and the second variable resistor, and a correction feedback block is configured to compare the reference stress voltage to a reference voltage, to adjust a resistance of the first variable resistor, and to adjust a resistance of the second variable resistor in response to the comparing.