Abstract: A switch control device includes: a controller to output a control signal for controlling opening and closing of a switch; a switch driver to output a driving signal to the switch according to the control signal to control the opening and closing of the switch; and a counter connected between an output terminal of the switch driver and the switch, the counter to: receive a state signal from the controller indicating an operating state of the controller; and count a number of times that the switch is operated in an open state or a closed state by the driving signal when the state signal indicates the operating state of the controller as an abnormal state. The controller is further to detect a malfunction of the switch while the controller operates in the abnormal state based on the count.

Abstract: A tailgate deactivation system. A switch includes two terminals configured to be electrically coupled to a tailgate power circuit that supplies power to at least a portion of a tailgate of a vehicle, and an actuator configured to electrically couple the two terminals in an on state to allow power to flow in the tailgate power circuit, and to electrically decouple the two terminals in an off state to inhibit power from flowing in the tailgate power circuit.

Abstract: Systems and methods for a transfer switch including a first switch device at a first leg between a first power source and an electrical load, and a second switch device at a second leg between a second power source and the electrical load and a first resistor circuit including a third switch device connected to the first leg. The third switch device switches between open and closed states in response to the state of the first switch device to limit back feed voltage generated as a result of leakage current when the first power source is inactive. The system may also include a second resistor circuit including a fourth switch device connected to the second leg. The fourth switch device switches between open and closed states in response to the state of the second switch device to limit back feed voltage as a result of leakage current when the second power source is inactive.

Abstract: A voltage measurement method for an on-board power supply system (100) of a vehicle, wherein the on-board power supply system (100) comprises a battery pack (10) with a plurality of battery cells (2) and at least one sub-grid (20, 30) which can be coupled to the battery pack (10) via contactors (SH+, SH?, SL+, SL?). According to the invention, the voltage measurement method comprises the following method steps: In an initial calibration mode with open contactors (SH+, SH?, SL+, SL?): measurement of cell voltages (UZ) of the individual battery cells (2); calculation of a pack voltage (UP) of the battery pack (10) using the measured cell voltages (UZ); measurement of a pack voltage (UP) of the battery pack (10); calculation of a first correction factor for the pack voltage (UP) using the calculated pack voltage (UP) and the measured pack voltage (UP).

Abstract: Various embodiments for managing assets in a data center device rack include: establishing a data connection between a cabinet level controller and at least one primary power distribution unit (PDU); using a first electrical outlet on the primary PDU to establish an electrical connection between the primary PDU an electrical asset in a data center equipment rack; using a first asset interface connector on the cabinet level controller to establish a data connection between the cabinet level controller and the electrical asset in the data center equipment rack, the first electrical outlet and the first asset interface connector being in horizontal alignment; using a router integrated into the cabinet level controller to connect the cabinet level controller to a wide area Internet Protocol (IP) network; and using the router to establish a single IP address corresponding to a plurality of electrical assets in the data center equipment rack.

Abstract: An electric power system has a power inverter system with a quasi-resonant circuit (QRC), and a controller, and couples a DC power supply to an electric machine. The power inverter system includes a positive inverter bus and a negative inverter bus; first paired switches; a positive DC bus terminal; and a negative DC bus terminal. The QRC includes an inverter inductance device, a capacitor, a first bus switch, and a second bus switch. The inverter inductance device and the second bus switch are arranged in series between the positive inverter bus and the first switch node, and the first bus switch is arranged between the positive DC bus terminal and the positive inverter bus. The controller is configured to control the QRC to generate an alternating current in the DC power supply.

Abstract: A method operable by a controller of a static transfer switch (STS) is provided. The STS includes first and second inputs selectively coupled with first and second power sources via first and second circuit breakers, respectively, an output coupled with a load, first and second bypass breakers selectively coupling the first and second inputs, respectively, with the output, at least one removable power stage module including first and second power stages configured to conduct electrical power when active, first and second contactors selectively coupling the first and second inputs with the first and second power stages, respectively, and a load switch selectively coupling the first and second power stages with the output. The method includes modifying an operating state of the first and second contactors and the first and second power stages to implement a bypass operation and an un-bypass operation of the STS in response to a trigger condition.

Abstract: A circuit breaker device for a low-voltage circuit has a mechanical isolating contact unit connected in series with an electronic disconnection unit. The mechanical isolating contact unit is switched by opening contacts to prevent current flow or closing the contacts for current flow in the low-voltage circuit. The electronic disconnection circuit is switched by semiconductor-based switching elements into a high-resistance state of the switching elements or into a low-resistance state of the switching elements for current flow in the low-voltage circuit. When the amount of an instantaneous current value of the low-voltage circuit exceeds at least one current threshold value, prevention of the current flow of the low-voltage circuit is initiated. The at least one current threshold value is adjusted according to the magnitude of the voltage of the circuit breaker device.

Abstract: A system (11,21) is configured to identify a plurality of lighting devices (31-34) included in a entertainment group, assign a first subset (31,32) of the plurality of lighting devices to a first subgroup and a second subset (33,34) of the plurality of lighting devices to a second subgroup according to one or more grouping criteria, control, using a first communication protocol, the first subset of lighting devices to render a first subset of multiple dynamic light effects in the entertainment mode, and control, using a second communication protocol, the second subset of lighting devices to render a second subset of the multiple dynamic light effects in the entertainment mode. The first subset of lighting devices does not overlap completely with the second subset of lighting devices.

Abstract: A voltage source converter includes two half bridges each having two current valves connected in series to be connected to opposite poles of a DC source/load. A gate drive unit controls a semiconductor device of a current valve. An arrangement carries out voltage measurements for providing a value of DC voltage between the opposite poles. A voltage divider connected across the two current valves measures DC voltage between opposite poles and each voltage divider has an output connected to processing parts delivering a digital signal representing a value of the DC voltage between the poles. Two gate drive units send a digital signal to a calculating unit to carry out a quality estimation of the digital signals and to calculate a DC voltage value from the signals while giving each signal a weight corresponding to the quality value adhered thereto and then forming a weighted average value.

Abstract: A mobile printer includes: a roll body accommodating portion accommodating a roll body on which recording paper is wound; a print head performing printing on the recording paper; a transport unit pulling out the recording paper from the roll body and transporting the recording paper to the print head; a cutting unit cutting the recording paper; a power supply unit supplying a drive voltage signal to the print head, the transport unit, and the cutting unit; and a housing covering the roll body accommodating portion, the print head, the transport unit, the cutting unit, and the power supply unit, in which the power supply unit has a power receiving module receiving a signal based on a power supply voltage signal from an outside by a non-contact power supply, and the power receiving module is fixed to a power supply surface of the housing by an adhesive member.

Abstract: The present invention is directed to an electronic switch device, the device including a housing assembly including a front cover assembly having a user accessible surface, a back body assembly, terminals configured to be coupled to an AC power source and the load; an antenna assembly including an antenna substrate disposed inside the housing assembly adjacent a portion of the front cover assembly, an antenna being disposed on the antenna substrate having a conductive grid structure; and a circuit assembly disposed inside the housing assembly coupled to the terminals, the circuit assembly comprising a printed circuit board, the printed circuit board including a ground plane, the circuit assembly being electrically connected to the antenna assembly via a conductor, the printed circuit board being separated from the antenna assembly by a predetermined distance, the circuit assembly including a relay switch having at least one solenoid winding connected to the circuit assembly and a set of contacts.

Abstract: A secondary power system is configured to connect to a motor vehicle having a powertrain comprising an engine and a first alternator. The secondary power system includes a second alternator connected to the engine, one or more electro-chemical storage devices coupled to the second alternator and configured to be charged by the alternator, and one or more inverter chargers. The inverter chargers may operate in a first mode to provide AC power to loads on the vehicle or in a second mode to receive alternative power and charge the storage devices. In an embodiment, the secondary power system includes multiple storage devices each comprising at least one electro-chemical storage pack and a logic. The storage devices are interconnected by a junction box. The logics within each storage device may selectively disrupt power flow from the junction box upon detection of an error condition.

Abstract: A system and a vehicle are described. An illustrative system includes a vacuum chamber and one or more components of a motor. The one or more components of the motor may be provided in the vacuum chamber and may be configured to move in a partial or complete vacuum created within the vacuum chamber.

Abstract: A multi-phase power inverter for an electric propulsion system includes a plurality of T-type multilevel power converters arranged between a high-voltage direct current (DC) power supply and an electric machine. Each of the plurality of T-type multilevel power converters is a solid-state integrated circuit that includes a positive DC power bus, a negative DC power bus, a neutral bus, and a plurality of semiconductor switches disposed in a stacked arrangement. The plurality of semiconductor switches is interconnected via the positive DC power bus, the negative DC power bus, and the neutral bus.

Abstract: A tailgate deactivation system. A switch includes two terminals configured to be electrically coupled to a tailgate power circuit that supplies power to at least a portion of a tailgate of a vehicle, and an actuator configured to electrically couple the two terminals in an on state to allow power to flow in the tailgate power circuit, and to electrically decouple the two terminals in an off state to inhibit power from flowing in the tailgate power circuit.

Abstract: A power conversion device includes a major circuit part converting a power of a distributed power source into AC power corresponding to a power system, and a controller controlling an operation of the major circuit part; the controller includes an estimated value calculation part and a reactive power calculation part; the estimated value calculation part calculates an estimated value of a resistance component of a system impedance of the power system, an estimated value of a reactance component of the system impedance, and an estimated value of a voltage value of the infinite bus power system based on an active power value of a connection point to the power system, a reactive power value of the connection point, and a voltage value of the connection point.

Abstract: A power supply control device is to be installed in a vehicle. The power supply control device controls power supply via a semiconductor switch and a fuse by turning the semiconductor switch ON or OFF. The semiconductor switch and the fuse are mounted on a circuit board. In the fuse, two long plate-shaped terminals are arranged in a row. The fusing portion and a part of the two terminals are covered with a housing having heat resistance. The two terminals are disposed in a current path of a current flowing through the semiconductor switch. The current flows through the fusing portion. If the temperature of the fusing portion exceeds a predetermined temperature, the fusing portion is fused.

Abstract: A distributed hybrid propulsion system is provided and includes an engine assembly that includes an engine, which is non-propulsive, an energy storage element, a motor-generator and a common bus to which the engine assembly, the energy storage element, the motor-generator and the controller are connected. The common bus includes bi-directional power flow control elements, which are controllable to manage bi-directional power flow between the engine assembly, the energy storage element and the motor-generator.

Abstract: A power transmitter for wireless power transfer includes a sensing system, a feedback mechanism and a control and communications unit includes a controller configured to receive object detection data from the sensing system, if a power receiver is detected, reset an alert timer, if the power receiver has been detected and a disconnect is detected, determine if an alert timer value is greater than an alert threshold, if a disconnect is detected and the alert timer value is greater than the alert threshold, instruct the feedback mechanism to output an alert. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal and 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 top face.