Abstract: An online, double-conversion uninterruptible power supply includes: a UPS input; a rectifier, whose input is connected to the UPS input; an inverter, whose input is connected to an output of the rectifier; a UPS output connected to an output of the inverter; a bypass switch connected between the UPS input and the UPS output; a control unit for closing the bypass switch in case of excessive output current and/or excessive voltage drop and/or excessive power demand at the UPS output; and an override input, which, when activated, inhibits closing the bypass switch.

Abstract: An uninterrupted power supply apparatus includes a plurality of uninterrupted power supply modules each including a converter, a chopper, and an inverter, and a first control unit configured to output an voltage indication and phase information for controlling timing of switching operations of switching devices in the chopper and the inverter, wherein each of the uninterrupted power supply modules includes a second control unit that is configured to generate a first triangular carrier in synchronization with the phase information, to generate a second triangular carrier such that a phase of the second triangular carrier is synchronized with a phase of the first triangular carrier, the first triangular carrier being used with the voltage indication to control switching operations of the switching devices in the inverter, the second triangular carrier being used with the voltage indication to control switching operations of the switching devices in the chopper.

Abstract: An electric power control device includes: an ECU; a DC power supply; a backup power supply which has a control power supply as an operation source, supplies electric power to the ECU when an electric power supply from a battery to the ECU is stopped, and supplies electric power to the DC power supply when an electric power supply from the battery to the DC power supply is stopped; a first ground line connected to a ground terminal of the DC power supply; a second ground line connected to a ground terminal of the backup power supply; a current path formation unit which electrically connects the first ground line to the second ground line and forms a path in which a current flows from the first ground line to the second ground line in one direction; and a noise minimizing component connected to the current path formation unit in series.

Abstract: A charging system for an electric window covering, which includes a motorized assembly controlling the movement of the electric window covering, and a power supply device including a rechargeable power unit and a first remaining power detection circuit is disclosed. The charging system comprises a charging device which provides power to the power supply device, a comparison module, and a notification unit. The first remaining power detection circuit detects the potential magnitude of the power unit, and the detected value is transmitted to the comparison module to be compared. If the potential magnitude is less than a predetermined threshold, a warning is presented at a notification unit. By actively presenting the warning to the user when the power of the power unit is low, the power supply device and the charging system can achieve the objectives of providing an active notification and extending the run-time of the power unit.

Abstract: An apparatus for managing power of a vehicle includes a processor that controls a bypass path for bypassing an input power or a boosting path for boosting the input power corresponding to an idle mode signal, a booster that boosts the input power corresponding to a driving signal to generate an output power, a control circuit that selectively supplies a power for operating the booster corresponding to an output signal of the processor in a boost mode, and a pulse width control circuit that controls a duty of the driving signal corresponding to an output signal of the control circuit.

Abstract: In a vehicle power supply system, when a main power supply device is normal, a backup controller turns on a switch circuit and turns off a switch circuit to supply power from the main power supply device to a load unit LD1 and a load unit, and can travel a vehicle in a normal mode which is in a normal driving state. On the other hand, when the main power supply device is abnormal, the backup controller supplies power from the backup battery to the load unit and does not supply power from the backup battery to the load unit by turning on the switch circuit and turning off the switch circuit, and can travel the vehicle in the limit mode in which the functions are more limited than in the normal mode.

Abstract: When interruption of electric service occurs, each of a number of electric actuators forcibly drives a motor using electric energy stored in an electricity storing portion and returns a valve to a predetermined opening position. When receiving a charge start command from a host device, each of the electric actuators starts the charging of the electricity storing portion. The host device divides the electric actuators into groups according to predetermined priority of charging and transmits charge start commands to the electric actuators for each of the groups in order of the priority.

Abstract: An electrical assembly includes a first battery, a second battery, a third battery, and/or a switch assembly. The switch assembly may be configured to selectively connect at least two of the first battery, the second battery, and the third battery to one or more loads. The switch assembly may include an electronic control unit (ECU) configured to control the switch assembly. The ECU may be configured to selectively open one or more switches of the switch assembly and disconnect a corresponding battery of the first battery, the second battery, and the third battery from the one or more loads to test the one or more switches and the corresponding battery.

Abstract: A control method for a power supply system includes a driving circuit conducting a switch element of a first backup transforming module of a backup supplying module corresponding to a phase of one of a plurality of power transforming modules in an abnormal operation according to a working signal corresponding to the power transforming module in the abnormal operation, when one of the plurality of power transforming modules corresponding to a three-phase voltage source is in the abnormal operation; and the driving circuit latching unconducted switch elements of at least one of undriven second backup transforming module of the backup supplying module corresponding to the phase, after a logic control circuit detects working signals corresponding to all phases of each backup transforming module, and latching unconducted switch elements corresponding to phases different with the phase of the first backup transforming module.

Abstract: To enable an increase in a service life of a modular safety relay circuit, a modular safety relay circuit is provided for the safe switching on and/or off of at least one machine comprising at least one relay module to which the at least one machine is connected, wherein the relay module comprises at least two relay contacts that are connected in series and that can be brought from a first position into a second position and vice versa; and wherein one relay contact switches in advance by a delay of the other relay contact; and a control unit controlling the relay contacts that alternatingly controls the relay contacts in accordance with a state detection of the relay contacts with the delay.

Abstract: A power supply method and a power supply apparatus including a power conversion circuit, a first and a second switching circuit, and a control circuit are provided. The power conversion circuit is coupled between a DC power source and a power supply terminal and performs a boosting operation according to a DC voltage of the DC power source to generate a boost voltage. The first switching circuit is coupled between an AC power source and the power supply terminal. The second switching circuit is coupled between the power conversion circuit and the power supply terminal. The control circuit enters a first mode after turning on the first and the second switching circuit, so the first switching circuit transmits a main AC voltage of the AC power source to the power supply terminal in the first mode. The boost voltage is greater than a peak value of the main AC voltage.

Abstract: A transmission device includes a pair of terminals connected to an electrical coupler via a pair of signal lines, a transmission unit connected to the pair of terminals via a pair of capacitor, and a DC power supply, a switch, and inductances, each connected in series between the pair of terminals without interposition of the pair of capacitors. A transmission device includes a pair of terminals connected to an electrical coupler via a pair of signal lines, a reception unit connected to the pair of terminals via a pair of capacitors, and a load resistor and inductances each connected in series between the pair of terminals without interposition of the pair of capacitors.

Abstract: A power supply system includes a main line, a plurality of sweep modules, and a control unit. Each sweep module includes a battery module and a power circuit module. The power circuit module switches between connection and disconnection between the battery module and the main line. The control unit executes sweep control for sequentially switching the battery modules which are to be connected to the main line. The control unit maintains connection of a refreshing module which is to be subjected to refreshing charging/discharging to the main line while sweep control is being executed in a state in which the refreshing module is excluded in at least one of outputting of electric power to the outside and inputting of electric power from the outside.

Abstract: The present invention relates to a method and an apparatus for detecting foreign material for wireless charging, and according to one embodiment of the present invention, a method by which a wireless power transmitter detects foreign material comprises the steps of: measuring the strength of a current inputted into an inverter in a ping step; receiving a packet including a receiver type identifier; determining a threshold value for detecting the foreign material corresponding to the receiver type identifier; and comparing the measured strength of current with the threshold value so as to determine whether the foreign material is present.

Abstract: An inductive power transmitter and an inductive power receiver include communication circuitry to communicate using modulation of the power transfer field. The inductive power transmitter or the inductive power receiver includes monitoring circuitry to determine a communication fault condition. If a communication fault condition is determined, a converter of the inductive power transmitter or inductive power receiver can adjust a control parameter.

Abstract: A device includes a first inductor and a second inductor. The first inductor has a first inductive coupling profile. A first circuit component is coupled to the first inductor. A second inductor has a second inductive coupling profile. A second circuit component coupled to the second inductor.

Abstract: According to one aspect, an uninterruptible power supply system is provided including an input configured to receive input power, an interface configured to be coupled to a backup power supply and to receive backup power from the backup power supply, an output configured to provide output power derived from at least one of the input power and the backup power to a load, a power converter coupled to the input, a capacitor, and a shoot-through detector coupled to the capacitor. The shoot-through detector is configured to obtain a first voltage value indicative of a first voltage across the capacitor, obtain a second voltage value indicative of a second voltage across the capacitor, compare the first voltage value to the second voltage value, determine, based on the comparison, that the capacitor is experiencing a shoot-through condition, and provide an output signal indicative of the shoot-through condition.

Abstract: According to one aspect, embodiments herein provide a UPS comprising a UPS input configured to be coupled to an AC power source and to receive input AC power, an interface configured to be coupled to a DC power source and to receive backup DC power, a UPS output configured to provide output power derived from at least one of the input AC power and the backup DC power to a load, a converter comprising a converter input coupled to the UPS input, a converter output, a first converter path coupled between the converter input and the converter output, and a second converter path coupled between the converter input and the converter output, and a controller configured to operate the first converter path and the second converter path to convert the input AC power into DC power and provide the DC power to the converter output.

Abstract: The systems and methods of the present disclosure relate to uninterruptible power supplies, more particularly, to an enclosure configured to control an uninterruptible power supply. An enclosure comprises: a top wall, a bottom wall, wherein the bottom wall is disposed parallel to the top wall, sidewalls, wherein a bottom end of each of the sidewalls is disposed along opposing sides of the bottom wall so as to be perpendicular to the bottom wall, wherein the top wall is disposed about a top end of each of the sidewalls, a communications assembly tray; one or more power fuse assembly trays; and one or more micro-switches, wherein the one or more micro-switches are disposed onto the sidewalls, wherein the one or more micro-switches are configured to secure and indicate that the communications assembly tray and the one or more power fuse trays have been secured into the enclosure.

Abstract: Relays having internal connections on both sides of their switches may be used in conjunction with a connector that integrates both the normal relay switch control lines with the sensing conductors of a control module for a battery module of an energy storage device. In this manner, sensing conductors may be routed along with the switch control lines for the relay instead of separately as described above. This integration reduces the complexity and cost associated with the energy storage device, because it reduces the number of separately routed lines and also eliminates the external connections for at least some of the sensing conductors.