Abstract: A navigation method for a ship which includes: a plurality of main generators that feed power to navigation equipment used in normal navigation and appliances for the living quarters provided within a ship body; and an emergency generator that feeds power to emergency equipment in case of fire or flood. The navigation method includes: an emergency power feeding step for feeding power to the emergency equipment using the emergency generator when at least one of the plurality of main generators is disabled due to fire or flood; and a return-to-port power feeding step for feeding power to return-to-port equipment, required for navigation for returning to port, using the main generators and the emergency generator after the fire or flood has subsided.

Abstract: The invention relates to a radio frequency oscillator, the radio frequency oscillator comprising a resonator circuit being resonant at an excitation of the resonator circuit in a differential mode and at an excitation of the resonator circuit in a common mode, wherein the resonator circuit has a differential mode resonance frequency at the excitation in the differential mode, and wherein the resonator circuit has a common mode resonance frequency at the excitation in the common mode, a first excitation circuit being configured to excite the resonator circuit in the differential mode to obtain a differential mode oscillator signal oscillating at the differential mode resonance frequency, and a second excitation circuit being configured to excite the resonator circuit in the common mode to obtain a common mode oscillator signal oscillating at the common mode resonance frequency.

Abstract: In certain aspects, an apparatus includes a transformer including an input inductor and an output inductor, wherein the input inductor is magnetically coupled to the output inductor. The apparatus also includes a transconductance driver configured to drive the input inductor based on an input signal. The apparatus further includes a feedback circuit configured to detect an output voltage swing at the output inductor, generate a regulated voltage at the input inductor, and control the regulated voltage based on the detected output voltage swing.

Abstract: The invention relates to a resonator circuit, the resonator circuit comprising a transformer comprising a primary winding and a secondary winding, wherein the primary winding is inductively coupled with the secondary winding, a primary capacitor being connected to the primary winding, the primary capacitor and the primary winding forming a primary circuit, and a secondary capacitor being connected to the secondary winding, the secondary capacitor and the secondary winding forming a secondary circuit, wherein the resonator circuit has a common mode resonance frequency at an excitation of the primary circuit in a common mode, wherein the resonator circuit has a differential mode resonance frequency at an excitation of the primary circuit in a differential mode, and wherein the common mode resonance frequency is different from the differential mode resonance frequency.

Abstract: A redundant, load-sharing system and method for distributing electrical power to components in a vehicle. The system including a source of power, multiple power distribution buses, a plurality of switching devices and at least two channel controllers. The system being configured to isolate the components and power sources that are determined to be electrically noisy from the components and the power sources that are sensitive to electric noise. Each of the components may be assigned a priority based on the criticality of the component to the operation of the vehicle. In the event of at least a partial loss of power in one or more of the power distribution buses, the switching devices disconnect the components from the effected power distribution buses in reverse order of the assigned priority.

Abstract: Techniques and mechanisms for a memory device to perform in-memory computing based on a logic state which is detected with a voltage-controlled oscillator (VCO). In an embodiment, a VCO circuit of the memory device receives from a memory array a first signal indicating a logic state that is based on one or more currently stored data bits. The VCO provides a conversion from the logic state being indicated by a voltage characteristic of the first signal to the logic state being indicated by a corresponding frequency characteristic of a cyclical signal. Based on the frequency characteristic, the logic state is identified and communicated for use in an in-memory computation at the memory device. In another embodiment, a result of the in-memory computation is written back to the memory array.

Abstract: Examples described herein provide for a relaxation oscillator and corresponding methods of operation. In an example, a circuit includes a dynamically controllable current source, a capacitor, and an oscillator generation circuit. The dynamically controllable current source includes a digitally tunable current mirror configured to generate a current. The digitally tunable current mirror includes multiple transistors configured to be selectively electrically connected in parallel to alter a gain of the digitally tunable current mirror to control the current. The capacitor is selectively electrically connected to the dynamically controllable current source. The oscillator generation circuit is electrically connected to the capacitor. The oscillator generation circuit is configured to generate an oscillation signal in response to a voltage of the capacitor.

Abstract: A gas cell includes a cell having a principal chamber having a coating material film formed on an inside wall, a reservoir arranged with the principal chamber along the longitudinal direction and communicating with to the principal chamber, a reinforcement section extending from the reservoir side of the principal chamber in an X-axis direction along the reservoir, an opening section disposed on an opposite side of the reservoir to the principal chamber, and a sealing section adapted to block the opening section, and an alkali metal gas encapsulated in the principal chamber, and the reinforcement section is provided with one of at least one hole and at least one groove.

Abstract: A circuit includes an oscillator having a driver and a resonator. The driver receives a supply voltage at a supply input and provides a drive output to drive the resonator to generate an oscillator output signal. A power converter receives an input voltage and generates the supply voltage to the supply input of the driver. A temperature tracking device in the power converter controls the voltage level of the supply voltage to the supply input of the driver based on temperature such that the supply voltage varies inversely to the temperature of the circuit.

Abstract: An oscillator includes a resonator, sustaining circuit and detector circuit. The sustaining circuit receives a sense signal indicative of mechanically resonant motion of the resonator generates an amplified output signal in response. The detector circuit asserts, at a predetermined phase of the amplified output signal, one or more control signals that enable an offset-reducing operation with respect to the sustaining amplifier circuit.

Abstract: A sensor circuit includes at least one ring oscillator having a supply port supplied by at least one current source and a reference frequency. A comparator compares a frequency output of the at least one ring oscillator with the reference frequency to yield a measurement, such as a temperature measurement.

Abstract: Embodiments of circuits and methods for starting a crystal oscillator are disclosed herein. In one example, an oscillation circuit is disclosed. The oscillation circuit includes a multi-phase oscillator, a control circuit, a phase selection circuit, a drive circuit, and a crystal oscillator. The multi-phase oscillator is configured to generate candidate clock signals of multiple phases. The phase selection circuit is coupled to the multi-phase oscillator and configured to select a clock signal from the candidate clock signals. The drive circuit is coupled to the phase selection circuit and configured to inject the selected clock signal to the crystal oscillator for a period of time determined by the control circuit. The control circuit is coupled to the phase selection circuit and the drive circuit and is configured to control the on and off of the drive circuit and output a plurality of injections signals.

Abstract: A smart automotive battery electrical energy storage device-system with built-in backup power. The battery has a primary power unit and a booster power unit which may reside in the same enclosure as that of the primary power unit and primary power unit and a booster power unit are electrically isolated most of the time. The primary power unit and a booster power unit are electrically connected intermittently when certain conditions are sensed. The battery has an electronic control unit with wireless transceiver electronic element. The booster power unit can be connected to the primary power unit using a smartphone application. The nominal voltage provided by the booster power unit can be same, higher or lower than the nominal voltage provided by primary power unit. Each of the primary power unit and booster power unit is comprised of multiple individual battery cells.

Abstract: A power supply apparatus and a power supplying method thereof are provided. The power supply apparatus includes a power switch and a supplied power generator. The power switch respectively receives a first power and a second power through a first switch and a second switch. The supplied power generator converts the first power or the second power to generate a supplied power. When the supplied power generator judges the first power being cut off, during a first time period, the first switch is cut off and a voltage converting operation of the supplied power generator is stopped. During a second time period, the second switch is turned on, and the voltage converting operation of the supplied power generator is restarted after the second switch being turned on.

Abstract: In an oscillator device that outputs a frequency signal based on an oscillation frequency of a crystal resonator and a frequency setting value, a frequency difference detector that obtains a difference value corresponding to a frequency difference between the output frequency of the oscillator device and an external clock signal and a temperature detector are disposed. An aging coefficient and a temperature characteristic coefficient are obtained based on a secular change of the difference value obtained in the frequency difference detector and a secular change of the detected temperature during a period where the external clock signal is obtained. Furthermore, a frequency correction value is calculated using the aging coefficient and the temperature characteristic coefficient during a holdover period, and the frequency correction value is added to the frequency setting value.

Abstract: A vehicle system includes an interface, an outlet, and a converter configured to, responsive to user input to the interface enabling shed mode, interrupt flow of battery current to internal vehicle loads such that power available at the outlet exceeds a predetermined threshold regardless of whether an external load is plugged into or removed from the outlet, and otherwise, maintain the flow regardless of whether an external load is plugged into the outlet.

Abstract: A frequency signal generation apparatus includes a light source, an atom cell with gaseous alkali metal atoms and a buffer gas enclosed therein, through which light output from the light source passes, and a container with a gas containing gas molecules in common with the buffer gas enclosed, housing the atom cell, wherein pressure of the common gas molecules is substantially the same within the atom cell and within the container.

Abstract: A transceiver device for receiving an interrogation signal at a first carrier frequency and for transmitting a response signal at a second carrier frequency is disclosed. The interrogation signal comprises the first carrier frequency modulated at the second carrier frequency. The communication device includes a sensor coupled to a demodulator. The sensor receives a low frequency input used to further modulate the interrogation signal. The demodulator demodulates the low frequency input from the first carrier frequency to thereby generate the response signal comprising the second carrier frequency and the low frequency input. The demodulator preferably includes a pyroelectric demodulator, a piezoelectric demodulator, or a detector diode. The demodulator preferably has a frequency response less than the first carrier frequency but greater than the second carrier frequency.

Abstract: One or more embodiments relate to a circuit that can be used to prevent cross conduction in an SMPS including multiple half-bridge modules connected in parallel to a single output inductor and driven by a single pulse width modulation (PWM) signal. According to certain aspects, each high-side driver and low-side driver in a single half-bridge module is synchronized in their switching with corresponding high-side drivers and low-side drivers in other half-bridge modules.

Abstract: A control device actuates actuator unit to set a position of an optical element of a lithography system. The control device includes an amplifier unit for providing a control signal for the actuator unit via a voltage signal and a PWM signal. The PWM signal has a duty factor and a clock frequency. The control device also includes a modulator unit designed to provide the PWM signal having the duty factor and a defined clock frequency from a plurality of defined clock frequencies. A defined clock frequency of the plurality of defined clock frequencies is an integer multiple of a basic clock frequency. The basic clock frequency is in the range of 10 kHz to 1 MHz.