Abstract: An apparatus for power conversion. In one embodiment, the apparatus comprises a plurality of AC power sources, wherein each AC power source in the plurality of AC power sources has a phase rotation circuit coupled to a DC/AC inverter for converting DC input power to AC output power, wherein (i) a first phase rotation circuit has first three phase output terminals coupled to second three phase input terminals of a second phase rotation circuit; (ii) the second phase rotation circuit has second three phase output terminals coupled to third three phase input terminals of a third phase rotation circuit; and (iii) the third phase rotation circuit has third three phase output terminals coupled to either fourth three phase input terminals of a fourth phase rotation circuit or to a commercial power grid.

Abstract: An integrated circuit includes a global power supply node. A first power domain has a first power management circuit, which includes a local power supply node. A first power control circuit is capable of receiving an input signal. A second power control circuit has a higher current capacity than the first power control circuit. The first power control circuit and the second power control circuit are coupled to the local power supply node and the global power supply node. The input signal is configured to initiate a power sequence, e.g., a power up process or a power down process, in the first power control circuit. A first control signal generated by the first power control circuit is configured to initiate a power sequence in the second power control circuit.

Abstract: A wireless power supply includes: a power transmitting coil resonant at a first resonant frequency that generates a magnetic field resonance, a power receiving coil resonant at the first resonant frequency, a power receiving unit that outputs energy received by the power receiving resonant coil; a distance detector that detects a distance between the power transmitting resonant coil and the power receiving resonant coil; a power transmitting frequency controller that changes the first resonant frequency to a second resonant frequency on the basis of the distance detected by the distance detector; and a power receiving frequency controller that changes the first resonant frequency of the power receiving resonant coil from the first resonant frequency to a second resonant frequency on the basis of the distance detected by the distance detector.

Abstract: A switch circuit which can operate with a single low voltage is provided. A plurality of (i=0 to n) series circuits of a capacitor (Ci) and a path of the drain-source of a MOS-FET (Qi) are connected in parallel to each other between a first terminal T1 and a second terminal T0. In each of the series circuits, a pull-up resistor Ri is connected between an output terminal of an inverter Ai and a junction between the capacitor Ci and the MOS-FET (Qi). Each bit bi of digital data for controlling the capacitance is supplied to the gate of the MOS-FET (Qi) and the inverter Ai in each of the series circuits. Capacitance which varies in response to the value of the digital data is obtained between the first terminal T1 and the second terminal T0.

Abstract: The power control of a transport system comprises an electric motor for moving the transport appliance as well as a power supply appliance of the motor, which comprises an intermediate circuit. The power supply appliance of the motor is fitted between the power source and the electric motor. The transport system further comprises a network rectifier, which is fitted between the power source and the intermediate circuit of the power supply appliance of the motor for supplying braking power returning from the motor of the transport appliance to the power source.

Abstract: A compact multi-cycle high power microwave generator and a method of using the generator to generate microwave signals is disclosed and claimed. The apparatus includes one or more charged transmission line sections. Each transmission line section includes a first conductor that is section-specific and a second conductor that is common to all of the sections. A switch is associated with each section, each switch being operatively connected to a respective one of the first conductors. The apparatus includes third, common conductor that is not charged and that is operatively connected to each of the first conductors through its respective switch. The apparatus further includes a load, with the second conductor, the third conductor, and the load being operatively connected. Thus, the number of section-specific conductors, the number of charged transmission line sections, and the number of switches are all equal. Engagement of the switches generates a multi-cycle microwave pulse.

Abstract: A system and methods for automatically configuring a monitoring device that is attachable to a network coupled to a data collection system. The network has associated network parameters. The monitoring device is coupled to an energy distribution system. The monitoring device measures a characteristic of energy supplied by the energy distribution system and stores data representative of the measured characteristics. A first network communications link is automatically established between the monitoring device and the network, and a host server is contacted to identify network parameters including an address of the data collection system. A second network communications link is automatically established between the monitoring device and the data collection system based on the address of the data collection system. Nameplate and configuration information associated with the monitoring device is communicated from the monitoring device over the network to the data collection system.

Abstract: Various embodiments of a DC plant controller, methods of selecting among multiple power sources and DC plants incorporating the DC plant controller or the method. In one embodiment, the DC plant controller includes: (1) a source identifier configured to identify power sources couplable to a common DC bus, (2) a source prioritizer coupled to the source identifier and configured to prioritize the power sources based on at least one criterion and (3) an output characteristic assigner coupled to the source prioritizer and configured to assign output characteristics to the power sources that differ from one another as a function of the priority.

Abstract: A system including an array of solar cells having positive and negative rails. A plurality of intermediate nodes are positioned adjacent positive and negative rails of solar cells in the array of solar cells. A plurality of switches are positioned to couple positive nodes to positive rails, couple negative nodes to negative rails and couple positive and negative rails to intermediate nodes.

Abstract: An apparatus and method for restricting operation of a power delivery system are disclosed. In at least some embodiments, the apparatus includes a first input terminal at which is received a first command signal, and a second input terminal at which is received an additional signal. The apparatus further includes an output terminal at which is provided a control signal, and a circuit that generates the control signal based at least indirectly upon the first command and additional signals. The control signal generated by the circuit is configured to cause the power delivery system to not deliver at least one type of power when the first command signal indicates a command to do so, if the additional signal indicates an acceptability status. In some embodiments, the power delivery system is an isolation system (e.g., safety isolation system) as are employed in industrial environments, and the apparatus is a permissive module.

Abstract: A drive circuit for a DC latching device includes a battery, a storage element, and a plurality of switches connecting the battery to the storage element for charging the storage element from the battery and discharging the storage element into the coil of a DC latching device. The drive circuit further includes components for determining a state of the DC latching device. The drive circuit may include components for terminating the discharge of the storage element into the coil of the DC latching device in response to determining that the DC latching device has changed states to add reliability to the system and reduce energy consumption.

Abstract: A processing method for an operation system which performs operation processing in accordance with a detection amount detected by detection means and pulse output processing in which an operation result from the operation processing is transmitted as a pulse output, including: controlling transmission of the pulse output performed in the pulse output processing to make the transmission of the pulse output asynchronous with a timing of an end of the operation processing; and transmitting, by repeating the controlling, a pulse train having time-series continuity.

Abstract: A method includes determining a desired power draw for a plurality of loads connected to an electrical grid, each of the plurality of loads connected to the electrical grid through a load supply control and being able to obtain a desired amount of energy from the grid in a desired time period, and transmitting a plurality of instructions through a communication network to a plurality of load supply controls to cause at least some of the loads in the plurality of loads to receive power from the electrical grid at different rates than other loads of the plurality of loads such that the desired power draw is obtained and such that each load of the plurality of loads receives its corresponding desired amount of energy in the desired time period.

Abstract: A communication interface, between a control unit and a high voltage unit, includes a serial communication link between the control unit and the high voltage unit. The interface includes a signal transformer arranged as an isolation barrier between the control unit and the high voltage unit to ensure personal safety.

Abstract: A power generating system includes an energy source coupled to a DC link through a first power converter and a second power converter to couple the DC link to a power grid. A first controller in the power generating system regulates voltage on the DC link and a second controller regulates a parameter of the energy source. A dynamic parsing controller coupled to the first power converter and the second power converter selectively parses the output signals of the first and second controllers and generates operating commands for the first and second power converters based at least in part on the parsed output signals.

Abstract: SIMO power converters and associated methods of control are disclosed herein. In one embodiment, a method of converting a signal input signal into multiple output signals includes supplying power to a plurality of output terminals based on a signal input signal, detecting a voltage at individual output terminals, determining an arithmetic relationship between the detected voltages of the output terminals, and adjusting the power supplied to the plurality of output terminals based at least in part on the determined arithmetic relationship between the detected voltages of the output terminals.

Abstract: A marine vessel power and propulsion system that provides a vessel-wide uninterruptible power supply is described. The power and propulsion system includes a propulsion system including a prime mover coupled to a motor/generator and a propulsion device. The motor/generator is configured to be driven by the prime mover and to generate alternating current (AC) electric power. The power and propulsion system also includes a ship-service electrical system including a generator set and a ship-service bus. The generator set is configured to generate ship-service electric power for distribution over the ship-service bus. The power and propulsion system also includes a bi-directional converter configured to couple the propulsion system to the ship-service electrical system and to convert AC electric power generated by the propulsion system to ship-service electric power for distribution over the ship-service electrical system.

Abstract: A triangular-wave current flows through a reactor of a DC/DC converter for converting voltages between increased and reduced levels. Surges are reduced, which are developed in an output voltage serving as a control voltage when the triangular-wave current changes across a zero value at which the current direction is changed. When a primary current flowing through the reactor changes across 0 [A] (zero value) at which the direction is changed, within an adjustment range, a feedback coefficient by which to multiply the error between the control voltage and a target voltage is multiplied by k (k>1) so as to increase a feedback amount. Surges developed in the control voltage due to a dead time when the primary current changes across 0 [A] are reduced.

Abstract: An improved EPGS with an integrated electrical system architecture uses SPDAs with localised power converters to provide the necessary types of power to their respective electrical loads so that a single type of primary power bus may be used to connect its PDAs to respective SPDAs.

Abstract: Methods, systems, and devices are described for auxiliary power with low standby power consumption. Switching power converters typically include a switching power element (e.g., a power transistor), driven by a switching controller (e.g., including a gate driver). The power output of the switching power converter may be a function of the switching signal provided by the switching controller. For example, a pulse-width modulated (“PWM”) signal may be used to drive the switching power element, and the output of the switching controller may be adjusted by adjusting the frequency and/or duty cycle of the PWM signal. Embodiments implement cycle extension techniques to effectively extend a portion of the PWM signal to generate additional charge. The additional charge may be used to power an auxiliary power unit. The auxiliary power unit may then be used to drive the switching controller and/or to provide a source of power for other internal or external components.