Abstract: A wireless power transmission system includes a first antenna, a second antenna, a controller, a first power conditioning system, and a second power conditioning system. The controller is configured to determine a first driving signal for driving the first antenna based on a first operating frequency, a virtual AC power frequency, a variable slot length, and slot timing, and determine a second driving signal for driving the second antenna based on a second operating frequency, the slot length, and the slot timing. The first power conditioning system is configured to receive the first driving signal to generate the virtual AC power signals at the first operating frequency, the virtual AC power signals having peak voltages rising and falling based on the virtual AC power frequency. The second power conditioning system is configured to receive the second driving signal to generate the virtual DC power signals at the second operating frequency.

Abstract: An apparatus includes: an input configured to receive an input voltage; an prediction circuit coupled to the input and configured to provide an overcurrent prediction based on analysis of the input voltage; a delay circuit coupled to the input; a gain control circuit coupled to an output of the delay circuit and configured to selectively adjust a gain applied to at least one frequency range of the input voltage based on the overcurrent prediction; a driver coupled to an output of the gain control circuit; and a capacitive load coupled to an output of the driver.

Abstract: A chuck for heating and clamping a workpiece, such as a semiconductor workpiece, is disclosed. The chuck is configured to allow the workpiece to be heated to temperatures in excess of 600° C. Further, while the workpiece is heating, the components that make up the chuck may be maintained at a much lower temperature, such as room temperature. The chuck includes a housing, formed as a hollow cylinder with sidewalls and an open end. Electrodes are disposed at the top surface of the sidewalls to clamp the workpiece. A heat source is disposed in the cavity and emits radiated heat toward the workpiece. A clamp ring may be used to secure the workpiece. In some embodiments, a thermal sensor is used to monitor the temperature of the workpiece.

Abstract: An electronic apparatus includes a noise measurement circuitry that measures electromagnetic noise in a surrounding environment, and a controller that controls timing of turning on or off a switching circuit based on the electromagnetic noise measured by the noise measurement circuitry.

Abstract: A variable capacitor includes an enclosure having first and second conductive collars separated by an intermediate electrically insulating element. A movable capacitor plate assembly is electrically coupled to the first conductive collar, and a fixed capacitor plate assembly is electrically coupled to the second conductive collar. An actuator extends into the enclosure for advancing and retracting the movable capacitor plate assembly relative to the fixed capacitor plate assembly. A hermetically sealed volume within the enclosure maintains a vacuum or a liquid serving as a dielectric between a capacitor plate of the movable capacitor plate assembly and a capacitor plate of the fixed capacitor plate assembly. At least one capacitor plate comprises a coiled cylindrical plate having a having a greater height at a center portion of the capacitor plate coil and a lower height at an outer portion of the capacitor plate coil.

Abstract: In an example embodiment, a method for a Universal Serial Bus Type-C (USB-C) controller is provided. The method comprises: coupling a control channel PHY of the USB-C controller to a first configuration channel (CC) terminal of the USB-C controller; coupling a VCONN supply terminal to a second CC terminal of the USB-C controller; detecting that a voltage across the second CC terminal of the USB-C controller and the VCONN supply terminal is greater than a predetermined threshold; and in response to detecting that the voltage is greater than the predetermined threshold, decoupling the VCONN supply terminal from the second CC terminal of the USB-C controller.

Abstract: Disclosed herein are regulated power supplies. The power source delivers power to a system load and includes battery units. The power source also includes power flow devices coupled to the battery units that are configured to provide power from the battery units to the system load. Each power flow device corresponds to a respective one of the battery units and includes a one direction current flow device connected in series with a current regulator between the respective battery unit and the system load.

Abstract: A wireline release tool for downhole intervention, the tool including a housing having an electrical input and an electrical output; a pass-through switch located inside the housing and electrically connected between the electrical input and the electrical output; and a current limiter device located inside the housing and electrically connected between the electrical input and the electrical output. The pass-through switch is connected in parallel to the current limiter device, between the electrical input and the electrical output.

Abstract: This disclosure is directed to generator systems and methods for monitoring a direct current bus and automatically operating in response to a power level of the direct current bus dropping below a desired power level or to a threshold before dropping below the power level. The automatic operation of the generator system may raise or keep the actual power level of the system above the desired power level or threshold.

Abstract: A method performed by a control unit for handling phases in which multiple converters operate in an at least partly electrically driven vehicle. The converters are parallel power electric converters each comprised in a respective EMD. The converters are connected to a power supply via a DC supply link. At least one of the converters is adapted to communicate with at least one of the remaining of the multiple converters via a communication interface. The control unit detects that a first converter operates in a first phase. The control unit initiates at least one of the remaining converters to operate phase shifted compared to the first converter.

Abstract: A system to manufacture an electrode layer stack is disclosed. The system can include a conveyor device to move a carrier. The system can include a first placing device to place a first electrode layer on the carrier. The system can include a first alignment device to obtain first positional information associated with the first electrode layer. The system can include a second placing device to place a second electrode layer on the first electrode layer based on the first positional information to form the electrode layer stack. The electrode layer stack can include a separator layer between the first electrode layer and the second electrode layer.

Abstract: A laminar electrostatic eliminator circuit includes a main control module, a control instruction sending unit, a first driving circuit, a first boost circuit, a second driving circuit, and a second boost circuit. A signal input terminal of the main control module is connected to an instruction sending terminal of the control instruction sending unit, a control terminal of the main control module is connected to an input terminal of the first driving circuit and an input terminal of the second driving circuit.

Abstract: A power and data receiver according to the present embodiment includes: a reception coil configured to receive a power data signal from a transmission coil; a power unit forming driving power from the power data signal; and a data demodulation unit configured to demodulate a data signal from the power data signal, wherein the reception coil operates adjacent to the transmission coil to the extent that a first resonant frequency and a second resonant frequency are formed between the reception coil and the transmission coil, and the reception coil operates at a frequency greater than or equal to the first resonant frequency and smaller than or equal to the second resonant frequency in relation to the transmission coil.

Abstract: This application provides a vehicle DC voltage conversion circuit, including a high voltage battery connected in sequence, a primary-side-bridge module, a resonant module, a transformer module and a secondary-side-output module, wherein the secondary-side-output module includes a first voltage unit outputting a first voltage and a second voltage unit outputting a second voltage. The secondary side winding of the transformer is connected with the first voltage unit and the second voltage unit; The circuit also includes a driver module connected with the original side bridge module. The vehicle DC voltage conversion circuit provided in this application can not only output the first voltage, but also output the second voltage at the same time. It has the advantages of small size, high efficiency, low cost and industrialization, and can be widely used in the vehicle 48V electrical load, such as 48V vehicle electric heating system, 48V vehicle cooling fan, and so on.

Abstract: A portable hybrid power module is provided. The power module represents a combined capacitor and battery residing together in a single housing. The battery is preferably a 12 volt DC gel cell battery while the capacitor is an ultra-capacitor residing in parallel with the battery. The ultra-capacitor may be a series of 6 to 12 super capacitors residing in series, with each super capacitor providing 2.5 volts DC charge. The hybrid power module is configured to provide a charge to start an external portable device. The device may be an all-terrain vehicle, a personal water craft, a generator set, or a vehicle. The power module includes a first device terminal and a second device terminal for establishing electrical communication with a battery of the external portable device.

Abstract: Various implementations described herein are directed to systems, apparatuses and methods for managing one or more loads connected to one or more power sources using one or more smart outlets. Apparatuses described herein may include smart outlets configured to communicate with one or more controllers and responsively connect and disconnect electrical loads connected thereto. Methods described herein may include signaling and/or controlling one or more loads from a group of loads to connect to or disconnect from one or more power sources.

Abstract: A plastic keypad with data entry elements and at least one display element is protected from electrostatic discharge by an assembly having an overlay substrate on which an electrically-conductive arrangement is disposed. The overlay substrate has a top side and a back side with a precisely-positioned vias formed through the substrate. A top surface of the top side is a layer of a conductive polymer. The back side is printed with at least one layer of color ink that depict a plurality of alpha-numerical and pictorial elements of the keypad. The electrically-conductive arrangement is disposed on the overlay substrate to collect electrostatic charges on the top side, transfer the electrostatic charges to the back side through the plurality of vias and drain the transferred electrostatic charges to a ground.

Abstract: A hybrid power system for an aircraft. The hybrid power system comprises a high-voltage DC (HVDC) bus and a generator-motor system configured to (1) selectively receive electric power from the HVDC bus to assist in providing propulsion and (2) provide electric power to the HVDC bus during regulated power extraction. An LPS generator/motor is coupled with an LPS shaft of an engine. An HPS generator/motor is coupled with an HPS shaft of the engine. A first AC/DC converter is connected to the LPS generator/motor and the HVDC bus. A second AC/DC converter is connected to the HPS generator/motor, the first AC/DC converter, and the HVDC bus. An electric motor is connected to the HVDC bus and configured to provide propulsion and/or electric power. Further, AC and DC distribution systems are connected to the HVDC bus. A control system is configured to selectively control connections to the HVDC bus.

Abstract: An aircraft electrical system including: a first DC power bus and a fuel cell assembly including a first fuel cell group, wherein the first fuel cell group is electrically coupled directly to the first DC power bus without a voltage converter to provide a first power output to the first DC power bus.

Abstract: A power converter including a three-input direct current converter capable of performing maximum power point tracking on three power inputs, a step down converter capable of voltage step down of the three power inputs, a bus capacitor and a balance circuit utilizing switches and transformers utilized to balance voltages of the bus capacitor, a three-level inverter capable of creating alternating current voltages for the alternating current grid, an output filter electrically coupled to the three-level inverter, a contactor capable of disconnecting the bus capacitor and the balance circuit from the alternating current grid, and a parameter sensor and a field programmable gate array controller electrically coupled to the power converter, capable of controlling a plurality of power switches based on at least one sensed parameters.