Abstract: A power transmitter is configured for transmission of wireless power, to a wireless receiver, at extended ranges, including a separation gap greater than 8 millimeters (mm). The power transmitter includes a control and communications unit and an inverter circuit configured to receive input power and convert the input power to a power signal. The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a bottom face. The power transmitter further includes a shielding comprising a ferrite core and a magnetic backing, the magnetic backing configured to substantially back the bottom face of the coil.

Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.

Abstract: An oscillating circuit comprises a constant voltage supply circuit, a constant current supply circuit and an oscillating circuit; the constant voltage supply circuit is configured to output constant voltage; the constant current supply circuit is configured to output constant current; and the oscillating circuit is connected to the constant voltage supply circuit and the constant current supply circuit, and is configured to generate an oscillating signal with a preset frequency according to the constant voltage and the constant current.

Abstract: A nanoelectromechanical systems (NEMS) oscillator network and methods for its operation are disclosed. The NEMS oscillator network includes one or more network inputs configured to receive one or more input signals. The NEMS oscillator network also includes a plurality of NEMS oscillators coupled to the one or more network inputs. Each of the plurality of NEMS oscillators includes a NEMS resonator and produces a radio frequency (RF) output signal that oscillates at a particular frequency and a particular phase. The NEMS oscillator network further includes a plurality of connections that interconnect the plurality of NEMS oscillators. The NEMS oscillator network further includes one or more network outputs coupled to the plurality of NEMS oscillators and configured to output one or more output signals.

Abstract: A circuit device includes an oscillation circuit generating an oscillation signal by oscillating a vibrator, a temperature sensor circuit performing an intermittent operation, a logic circuit performing temperature compensation processing based on an output of the temperature sensor circuit, and a power supply circuit supplying power to the oscillation circuit. The oscillation circuit is disposed in a circuit region, the temperature sensor circuit and the logic circuit are disposed in a circuit region, and the power supply circuit is disposed in a circuit region, which is positioned between the circuit region and the circuit region.

Abstract: A circuit device includes an oscillation circuit generating an oscillation signal by oscillating a vibrator, a temperature sensor circuit performing an intermittent operation, a logic circuit performing temperature compensation processing based on an output of the temperature sensor circuit, and a power supply circuit supplying power to the oscillation circuit. Further, the logic circuit or the power supply circuit is disposed between the oscillation circuit and the temperature sensor circuit.

Abstract: Techniques and mechanisms for regulating a temperature of a resonator structure. In an embodiment, a thermoelectric cooler (TEC) is thermally coupled to a resonator which is proximate thereto. The resonator supports operation with an oscillator circuit, wherein a resonance characteristic of the resonator contributes to oscillations of a master clock signal, or other oscillatory signal, which is provided with the oscillator circuit. The TEC provides Peltier functionality to selectively perform either one of heating or cooling the resonator. In another embodiment, the TEC is configured to conduct heat which is transferred via a path between the TEC and the resonator, wherein the path omits any circuitry which is to perform operations which are synchronized based on the oscillatory signal.

Abstract: A DC switch with embedded de-multiplexing function links a plurality of DC switches in a priority chain and enables concurrent power switching between DC switches. The priority chain automatically selects a most cost-effective power for output to optimize energy utilization efficiency and with a just-in-time enable to activate standby-power to minimize energy waste in persistent DC power.

Abstract: A comb enhanced oscillator in which a drive signal from a first oscillator is split into two signals. The first signal is applied to a nonlinear resonator producing a phononic frequency comb of equally spaced resonances. The second signal is passed through an amplitude detector and a phase shifter. In one embodiment, the comb is applied to the phase shifter to correct for AM-PM cross-correlation noise and then applied to a phase lock loop (PLL) for locking to a second oscillator. The output of the second oscillator is used as the output of the comb enhanced oscillator.

Abstract: A temperature compensated oscillator circuit includes a first oscillator, a second oscillator, a first divider, a second divider, a frequency ratio circuit, and a temperature compensation circuit. The first divider is coupled to the first oscillator, and is configured to divide a frequency of a first oscillator signal generated by the first oscillator. The second divider is coupled to the second oscillator, and is configured to divide a frequency of a second oscillator signal generated by the second oscillator. The frequency ratio circuit is coupled to the first divider and the second divider, and is configured to determine a frequency ratio of an output of the first divider to an output of the second divider. The temperature compensation circuit is coupled to the frequency ratio circuit and the first oscillator, and is configured to generate a compensated frequency based on the frequency ratio and the first oscillator signal.

Abstract: A system for generating a sub-harmonically injection locked phase interpolated output signal. The system comprises ring oscillator (RO) circuitry to generate an output oscillator signal in response to a periodic input signal. The RO circuitry includes a plurality of differential delay RO stages interconnected in cascade within a closed loop, where each RO stage is configured to establish a corresponding delayed version of the output oscillator signal successively shifted in phase by a predetermined phase difference based on a predetermined interpolation mapping scheme. The system further comprises signal injection circuitry coupled to the RO circuitry to apply a first signal having a first input phase and a second signal having a second input phase to the plurality of differential delay RO stages based on the predetermined interpolation mapping scheme to lock a frequency of the output oscillator signal at one half the frequency of the periodic input signal.

Abstract: In a first and second embodiment, an apparatus and system comprising a set of voltage controlled oscillators (VCOs); wherein each VCO of the set of VCOs has an LC tank; wherein each VCO of the set of VCOs is connected via a transmission line. In a third embodiment, a method comprising connecting each VCO in a set of VCOs by connecting each respective LC tank of each VCO of the set of VCOs with a transmission line.

Abstract: A variable capacitance circuit includes a capacitor array having a first capacitor in which a plurality of MIM capacitors are coupled in parallel and a second capacitor in which a plurality of MIM capacitors are coupled in series, and a switch array having a first switch and a second switch. A shape pattern of at least one of a first electrode of the first capacitor, a first ground shield, a second electrode of the second capacitor, and a second ground shield is set so that a first capacitance difference per 1 LSB between first capacitance values of the first capacitor when the first switch is turned on and off and a second capacitance difference per 1 LSB between second capacitance values of the second capacitor when the second switch is turned on and off are close to each other.

Abstract: An ensemble of spin defect centers or other atom-like quantum systems in a solid-state host can be used as a compact alternative for an atomic clock thanks to an architecture that overcomes magnetic and temperature-induced systematics. A polariton-stabilized solid-state spin clock hybridizes a microwave resonator with a magnetic-field-insensitive spin transition within the ground state of a spin defect center (e.g., a nitrogen vacancy center in diamond). Detailed numerical and analytical modeling of this polariton-stabilized solid-state spin clock indicates a potential fractional frequency instability below 10?13 over a 1-second measurement time, assuming present-day experimental parameters. This stability is a significant improvement over the state-of-the-art in miniaturized atomic vapor clocks.

Abstract: A resonator device includes a base substrate that is formed of a single crystal semiconductor and includes a first surface, a resonator element attached to the first surface of the base substrate, and a cover that is bonded to the first surface of the base substrate, accommodates the resonator element between the cover and the base substrate, and is formed of a single crystal semiconductor. The base substrate and the cover are bonded through an amorphous layer.

Abstract: An integrated circuit apparatus includes an oscillation circuit that generates an oscillation signal by using a resonator, an output buffer circuit that outputs a clock signal based on the oscillation signal, a DC voltage generation circuit that generates a DC voltage used to generate the oscillation signal or the clock signal, a power source pad to which a power source voltage is supplied, a ground pad to which a ground voltage is supplied, and a clock pad via which the clock signal is outputted. The ground pad and the DC voltage generation circuit are disposed so as to overlap with each other in the plan view.

Abstract: A micromachined apparatus includes micromachined thermistor having first and second ends physically and thermally coupled to a substrate via first and second anchor structures to enable a temperature-dependent resistance of the micromachined thermistor to vary according to a time-varying temperature of the substrate. The micromachined thermistor has a length, from the first end to the second end, greater than a linear distance between the first and second anchor structures.

Abstract: The present disclosure provides a real-time correction method for an Oven Controlled Crystal (Xtal) Oscillator (OCXO) and an electromagnetic receiver. The real-time correction method for an OCXO includes: performing frequency multiplication on a reference clock signal to generate a first measurement signal and a second measurement signal; identifying a rising edge of each pulse per second on the basis of the first measurement signal to obtain a gate time T; obtaining a frequency of the second measurement signal according to the gate time T; and adjusting a frequency of the reference clock signal at least on the basis that an absolute value of a difference between two adjacent frequencies obtained of the second measurement signal is greater than a standard frequency difference.

Abstract: A hydroelectrically-charged agricultural irrigation prime mover includes: a carriage; a plurality of wheels coupled to the carriage; a fluid supply pipe configured to receive a pressurized fluid; an electric drive system; and a hydroelectric charging system. The electric drive system includes: a battery pack; and a motor electrically connected to the battery pack and configured to rotate at least some of the wheels. The hydroelectric charging system includes: a turbine fluidly connected to the fluid supply pipe to receive at least some of the pressurized fluid; and a hydroelectric generator connected to the turbine and configured to charge the battery pack.

Abstract: A circuit device includes an oscillation circuit that generates an oscillation signal by using a vibrator, a frequency adjustment circuit that adjusts an oscillation frequency of the oscillation circuit based on frequency adjustment data, a temperature sensor circuit that outputs temperature data, an arithmetic operation circuit, and a storage circuit. The arithmetic operation circuit outputs converted temperature data by performing, on the temperature data, conversion processing in which a slope of the converted temperature data with respect to the temperature data in a first temperature range is different from a slope of the converted temperature data with respect to the temperature data in a second temperature range. The storage circuit stores a lookup table representing a correspondence between the converted temperature data and the frequency adjustment data.