Abstract: An electronic system is disclosed for an associated electrical apparatus, the system having at least a binary input adapted to receive one or more candidate signals; at least an electronic active load having one or more electronic active devices and operatively connected to the binary input; and a controller operatively associated to the binary input and to the active load. The controller can detect application of a candidate signal to the binary input and electrically drive the active load upon such detection; and after absorption of a predetermined amount of energy, validate the candidate signal if its residual content of energy exceeds a predetermined threshold.

Abstract: A device for the transmission of electromagnetic signals, the device comprising: a conductive element at least one inducer, for inducing charge in said conductive element; a transmission circuit, for generation and transmission of electromagnetic signals; wherein said conductive element and said at least one inducer are movable, with respect to each other, between a plurality of relative positions; in a first position of said relative positions, said at least one inducer is arranged to induce a charge in said conductive element; in a second position of said relative positions, said conductive element is arranged to discharge; the conductive element is arranged to couple with the transmission circuit, in said first position and/or said second position, such that charging and/or discharging of said conductive element causes the transmission circuit to generate and transmit an electromagnetic signal; and the device is arranged such that movement of said device causes relative movement of said conductive element

Abstract: An apparatus and method for detecting a condition within a wireless charging field are described. In one implementation, an apparatus comprises a wireless power receiver configured to receive wireless charging power from a wireless power charging transmitter. The apparatus further comprises a first sensor circuit that is at least partially disposed within a ground surface, the first sensor being operationally coupled to and configured to be charged or powered by the wireless power receiver. The first sensor is further configured to detect the condition.

Abstract: The invention provides a device for operative connection between a subsea step out cable far end and subsea loads such as pumps, compressors and control systems, distinctive in that the device is a rotating frequency stepper device, more specifically a rotating step up or step down device, and it comprises: a motor and a generator operatively connected so that the motor drives the generator, at least one gas and/or liquid filled vessel into which at least one of the motor and generator are arranged, and the step out length is long, which means long enough to cause problems due to the Ferranti effect at frequency and power levels feasible for subsea pump and compressor motors, and where the device via the step out cable receives input electrical power at a low enough frequency to have stable transmission and the device, operatively connected to the subsea motor, delivers an output electrical frequency, amperage and voltage feasible for operation of the connected motors.

Abstract: A spin torque oscillator and a method of making same. The spin torque oscillator is configured to generate microwave electrical oscillations without the use of a magnetic field external thereto, the spin torque oscillator having one of a plurality of input nanopillars and a nanopillar having a plurality of free FM layers.

Abstract: A wire harness includes first to third electric wires; a braid shield that covers the first to third electric wires; a tube-shaped electromagnetic wave absorber having a through hole that allows the first to third electric wires to be inserted therethrough, the electromagnetic wave absorber absorbing electromagnetic waves emitted from the first to third electric wires; and a resin tape and fasteners that fix the positions of the electromagnetic wave absorber and the braid shield relative to each other. The electromagnetic wave absorber is movable in an axial direction of the first to third electric wires relative to the first to third electric wires as a result of extension and contraction of the braid shield in the axial direction.

Abstract: Disclosed is a wireless power transmitter which transmits power through a wireless power receiver to a load side. The wireless power transmitter includes a power source for generating AC power; a transmission coil for wirelessly transmitting the AC power to a reception coil of the wireless power receiver; and a detecting unit for detecting a coupling state between the transmission coil and the reception coil.

Abstract: Low noise switchable varactors and digital controlled oscillator (DCO) circuitry are presented for creating alternating signals at controlled frequencies, including a first transistor for selectively coupling two capacitors between varactor output nodes when a control signal is in a first state, second and third transistors for selectively coupling first and second internal nodes between the respective capacitors and the first transistor with a third internal node when the control signal is in the first state, and an inverter disconnected from the first and second internal nodes to mitigate phase noise and operable to control the voltage of the third internal node according to the control signal.

Abstract: A resonator element includes a quartz crystal substrate having a main surface along a plane including an X-axis and a Z?-axis, and a thickness in a Y?-axis direction. The quartz crystal substrate includes a vibrating portion including a side along the X-axis, a side along the Z?-axis, and a peripheral portion having a thickness smaller than that of the vibrating portion, which is provided along an outer edge of the vibrating portion. The vibrating portion includes a first portion and a second portion having a thickness smaller than that of the first portion, which is provided on at least an outer edge on a +X side of the X-axis and an outer edge on a ?X side thereof, among outer edges of the first portion. When Z is a length of the quartz crystal substrate along the Z?-axis, and t is a thickness of the first portion, 11<Z/t?53.

Abstract: In a crystal resonator, a resonator element is installed in a package via a first bonding member and a second bonding member, and when viewed from above, a distance between a first bonding center and a second bonding center is set to be L1, and a length of a perpendicular line drawn to a virtual line which connects the first bonding center and the second bonding center from the resonation area center is set to be L2, a relationship expressed by 0<L1/L2?0.97 is satisfied.

Abstract: A circuit system includes a current supply module, a voltage supply module and a voltage-controlled oscillator (VCO). The current supply module provides a current adapted to an ambient temperature. The voltage supply module receives the current and generates an adapted voltage according to the current. The VCO receives the adapted voltage and generates an oscillation signal according to the adapted voltage.

Abstract: An electronic circuit comprising a direct current interface at which a direct current is providable, an alternating current interface at which an alternating current is providable, a set of switchable half-bridges coupled to the direct current interface, each half-bridge comprising two blocks each having a switch and a diode, a control entity configured for switching the switches of the half-bridges with a predefined relative phase shift between different half-bridges, and a filter entity arranged between the alternating current interface and a plurality of parallel paths relating to the plurality of half-bridges wherein the filter entity comprises a coupled inductor inductively coupling the plurality of parallel paths.

Abstract: A non-contact power supply device comprises: a primary winding (101); and a secondary winding (201) to which an electric power is supplied from an alternating current power supply via the primary winding, wherein an impedance characteristic of Z1 with respect to a frequency is such that a minimal value is provided in the proximity of a frequency of a fundamental wave component of the alternating current power supply and another impedance characteristic of Z2 with respect to the frequency is such that the frequency of the fundamental wave component is provided between the frequency which is nearest to the frequency of the fundamental wave component and at which a maximal value is provided and the frequency which is nearest to the frequency of the fundamental wave component and at which the minimal value is provided.

Abstract: Integrating a direct current (DC) voltage motion sensing alarm with an alternating current (AC) voltage light source is presented herein. An apparatus can include a voltage conversion component that generates, within a wall switch box, a DC voltage from an AC voltage that is higher in magnitude than the DC voltage, and a motion sensing component that detects, from the wall switch box using the DC voltage, a motion of an object. The motion sensing component can detect the motion using an infrared and/or ultrasonic based DC sensor. The apparatus can further include a security component that generates, from the wall switch box using the DC voltage, an alarm signal and/or wireless alarm signal based on the motion, and a power component that switches, from the wall switch box using the DC voltage based on the motion, the AC voltage from a first contact to a second contact.

Abstract: There can be provided a power delivery (PD) device capable of achieving protocols, e.g. Hard Reset, without using any alternative power source, and a control method of thereof. The PD device includes: a power source; a power line configured to deliver power supplied from the power source, to an outside; a switch connected between the power source and the power line; and a control circuit connected to the power line so that power is supplied from the power source to the control circuit, wherein at the time when a Hard Reset protocol is received from the outside through the power line, the control circuit turns from ON to OFF the switch to disconnect the power line from the power source.

Abstract: Several circuits and methods for transferring an input data signal in a digital isolator are disclosed. In an embodiment, the digital isolator includes an isolation element, input circuit, and output circuit. The isolation element includes at least one input node and at least one output node, the input circuit is electronically coupled to the input node and generates modulated differential data signals based on modulating the input data signal on a carrier signal. The input circuit operates using a first supply voltage with respect to a first ground. The output circuit is electronically coupled to the output node to receive the modulated differential data signals, operates using a second supply voltage with respect to a second ground and includes a frequency-shift keying demodulator configured to generate a demodulated data signal in response to detection of presence of the carrier signal. The output circuit further generates an output data signal.

Abstract: A method of operating an electric system of a motor vehicle, consisting of a fuel cell system, an accumulator and an electric driving motor is provided. Without implementing an electric voltage conversion and therefore without an electric voltage converter, as a function of the level of the electric voltage made available by the fuel cell system and by the accumulator and the electric power demanded by the electric motor, a first switching element in the connection between the fuel cell system and a node point electrically connected with the accumulator and the electric motor, as well as a second switching element in the connection between the accumulator and this node point are opened or closed as needed. This is done such that the power requirement of the electric motor is met primarily from the fuel cell system, and in an auxiliary fashion, additionally from the accumulator.

Abstract: A method and an apparatus for driving a power switch tube. The apparatus includes an input unit, a drive unit, a transformer and a power switch tube. The input unit is connected to the drive unit, which is configured to input a group of drive signals, and the group of drive signals includes four drive signals, where the first drive signal and the second are complementary signals, and a dead time exists; the third drive signal and the fourth are complementary signals, and a dead time exists; the phase difference between the first drive signal and the third is 180 degrees, and the phase difference between the second drive signal and the fourth is 180 degrees; the drive unit is configured to power on a field winding of the transformer; and the transformer provides a drive voltage signal for the power switch tube.

Abstract: The invention, according to various embodiments described herein, relates to a phase-locked loop with a phase detector and a controlled oscillator. The controlled oscillator provides a varactor. The varactor is embodied using MEMS technology. According to the invention, the control bandwidth of the phase-locked loop is larger than the mechanical resonant frequency of the varactor.

Abstract: A microelectromechanical system (MEMS) resonator includes a resonant semiconductor structure, drive electrode, sense electrode and electrically conductive shielding structure. The first drive electrode generates a time-varying electrostatic force that causes the resonant semiconductor structure to resonate mechanically, and the first sense electrode generates a timing signal in response to the mechanical resonance of the resonant semiconductor structure. The electrically conductive shielding structure is disposed between the first drive electrode and the first sense electrode to shield the first sense electrode from electric field lines emanating from the first drive electrode.