Abstract: An electronic device includes an built-in battery unit, a voltage converter, a resistor, and a mechanical button. When the electronic device is connected to an external power source, the external power source provides power to the voltage converter and charges the built-in battery unit. When the external power source is absent, the built-in battery unit provides power to the voltage converter. A first end of the resistor is connected to an enable pin of the voltage converter, and a second end is connected to the button. When the electronic device is not connected to the external power source, and the button is moved a position to cause the second end of the resistor to be grounded, the voltage at the enable pin of the voltage converter goes to be logic low, the voltage converter is disabled, forcing shut down of the electronic device.

Abstract: Systems and methods are provided for reliable redundant power distribution. Some embodiments include micro Automatic Transfer Switches (micro-ATSs), including various components and techniques for facilitating reliable auto-switching functionality in a small footprint (e.g., less than ten cubic inches, with at least one dimension being less than a standard NEMA rack height). Other embodiments include systems and techniques for integrating a number of micro-ATSs into a parallel auto-switching module for redundant power delivery to a number of devices. Implementations of the parallel auto-switching module are configured to be mounted in, on top of, or on the side of standard equipment racks. Still other embodiments provide power distribution topologies that exploit functionality of the micro-ATSs and/or the parallel micro-ATS modules.

Abstract: An apparatus includes a rechargeable battery, a circuitry, and a controller. The circuitry is operable to receive power from a power source and to provide power to the rechargeable battery and to other electrical components of the apparatus. The controller is configured to monitor power requirements of the apparatus. Moreover, the controller is further configured to provide power from the rechargeable battery in addition to power supplied from the power source during a peak power event of the apparatus.

Abstract: An integrated lamp with automatic emergency light and regular light is provided in the present invention. The integrated lamp with automatic emergency light and regular light is coupled to an AC power source, wherein the AC power source includes a first AC terminal and a second AC terminal. The integrated lamp is controlled by a lamp switch, where the lamp switch includes a first terminal and a second terminal, where an indication light circuit is coupled between the first terminal and the second terminal of the lamp switch. The integrated lamp includes an AC detector. The AC detector is coupled between the second terminal of the lamp switch and the second AC terminal. When the lamp switch is turned off, the AC detector determines whether the current state is a power failure state or a normal state according to the electrical current and/or voltage from the indication light circuit to the second AC terminal.

Abstract: A power supply unit having a circuit for uninterrupted power supply comprises a first DC-DC converter arranged on the input side, at least one output configured for outputting an output DC voltage, and at least one first output switching controller. A DC link is arranged between the first DC-DC converter and the at least one output switching controller for regulating the at least one output DC voltage on the output side. The first DC link is connected to an energy storage module.

Abstract: An electric power system includes: an uninterruptible power supply including an AC switch provided between a commercial power supply and an output part, a secondary battery, and an inverter provided between the AC switch and secondary battery; an important load connected to the output part; a distributed power supply connected to the output part; total load power consumption detection section detecting the power consumption of all loads including the important load; charge/discharge power detection section detecting charge/discharge power of the secondary battery; output power detection section detecting the output power of the distributed power supply; important load power consumption detection section detecting the power consumption of the important load; and a controller that inputs thereto detection values from the total load power consumption detection section, charge/discharge detection section, output power detection section, and important load power consumption detection section and outputs a control

Abstract: A power conversion device connected between a storage battery and AC system charges the storage battery with power from the AC system and discharges power from the storage battery to the AC system. The power conversion device includes a DC/DC conversion circuit performing conversion between a storage battery voltage and DC bus voltage, a DC/AC conversion circuit performing conversion between the DC bus voltage and AC voltage of the AC system, and control circuits controlling the DC/DC and DC/AC conversion circuits. The control circuits select either step-up control or step-down control for the DC/DC conversion circuit based on the storage battery voltage, the storage battery charge state, and a control range of the DC bus voltage, set a control target value of the DC bus voltage, and control the DC/DC and DC/AC conversion circuits by the selected control method so the DC bus voltage becomes the control target value.

Abstract: A method for providing control power for an electricity network in which at least one energy store connected to the electricity network supplies energy to the electricity network as required and/or takes up energy from the electricity network as required, the control power being delivered in dependence on a frequency deviation from a setpoint value of a network frequency, tolerance with respect to the amount of the control power to be provided being used to set a charging state of the energy store at a same time as providing control power by the energy store. A device for carrying out such a method includes a control system and an energy store, the device being connected or connectable to an electricity network, the control system being connected to the energy store and controlling control power given off and/or taken up by the energy store.

Abstract: A system, topology, and methods for providing power or data to electronic devices are described generally herein. Other embodiments may be described and claimed. The system may include an internal power source, charging module, modem, and an external power coupling module.

Abstract: To provide an electric power system capable of adequately controlling the power flow in an AC switch (120) constituting an interruptible power supply, an electric power system according to the present invention includes: an uninterruptible power supply (100) including an AC switch (120) provided between a commercial power supply (200) and an output part (102), a secondary battery (130), and an inverter (135) provided between the AC switch (120) and secondary battery (130); an important load (150) connected to the output part (102); a photovoltaic power supply (140) connected to the output part (102); an electric power detection section (181) that detects the power consumption of all loads including the important load (150); an electric power detection section (131) that detects charge/discharge power of the secondary battery (130); and a controller (110) that inputs thereto detection values from the electric power detection section (181) and electric power detection section (131) and outputs a control command

Abstract: According to an example, an adapter is to provide power to a plurality of electronic components from a first power supply. The adapter may include a first connector to connect to the first power supply, a plurality of second connectors to connect to the plurality of electronic components, a plurality of lines connecting the first connector to each of the second connectors, in which each of the plurality of electronic components is to receive power from the first power supply through the plurality of lines, and a controller to detect a fault in the receipt of power from a second power supply in an electronic component of the plurality of electronic components and in which the controller is to request allocation of power from the first power supply to supply power to the electronic component.

Abstract: An electric energy control apparatus, module, and device are provided. The apparatus includes a first module including a first interface, a second module including a second interface, the second module includes the second interface connected to an input end of a power supply unit, an output end of power supply unit is configured to connect to an electric energy input end of external device; the first module includes the first interface connected to an input end of a charging unit, an output end of the charging unit is connected to an input end of power source unit; an output end of power source unit is connected to the first interface; an input end of detection control unit is connected to the first interface, a first output end is connected to control end of the first switch, a second output end is connected to control end of the second switch.

Abstract: Systems and methods for restoring service within electrical power systems are disclosed. The methods may include identifying a restoration path for an outage area within a power system, selecting a mobile energy resource connection site that is electrically connected to at least one of the restoration path and the outage area, sending power injection requests to a plurality of mobile energy resources, at least some of which may be proximate the connection site, receiving power injection acceptances from participating ones of the plurality of mobile energy resources, and implementing the restoration path. The systems may include a processor and a computer readable storage medium having a plurality of machine-readable instructions embodied thereon and con figured for execution by the processor to carryout the method.

Abstract: A mobile power platform can start storing energy to its battery array while being transported to an end use location. The platform, on a towable trailer, uses an array of photovoltaic cells, in panels that fold for transport before unfolding for full deployment at its user location. The system can be positioned in the direction of the sun with efficient, cost effective means. Optional additions to the platform include a mast with windmill and/or floodlight tower, a stand by/back-up generator, and kinetic power assist.

Abstract: A telecommunication power system comprises a battery recharge bus connected to a load bus via a plurality of contactor control paths. The telecommunication power system continuously cycles battery strings as primary power for loads at telecommunication sites in conjunction with utilizing alternate power sources as secondary power for the loads at the telecommunication sites. The telecommunication power system may be installed in a telecommunication site without removing an existing lead-acid rectifier system.

Abstract: An apparatus for eliminating electricity leakage from an electronic device connected to a power supply, while the electronic device is in switched-off state or stand-by state is disclosed. The electricity leakage is the electricity consumed by at least one active component of the electronic device that remains active in the switched-off state or standby state. The apparatus comprises of a charging module connected to at least one rechargeable battery for selectively providing electricity from the power supply to the rechargeable battery while the electronic device is in switched-on state using a MCU chip and associated circuit. An isolation module is provided for isolating the power supply from the electronic device while the electronic device is in switched-off state or standby state and restoring the power supply when the electronic device is in switched-on state.

Abstract: A polyphase power management system (PMS) and a method of operating the same. In one embodiment, the PMS includes: (1) a switching unit having a polyphase mains input with a neutral, a backup power input, a rectifier output and an other loads output, (2) a mains monitor/controller coupled to the switching unit and configured to monitor the polyphase mains input and route various phases of the polyphase mains input or the backup power input to the rectifier output and the other loads output based on the number of phases that are nominal at the polyphase mains input.

Abstract: A power storage system includes an AC/DC converter, a first control device, a power storage device, and a load. The first control device includes a measuring portion that measures the amount of power consumed by the load, a predicting portion that predicts the demand for power consumed by the load on the basis of the amount of power consumed by the load, and a planning portion that makes a charge and discharge plan of the power storage device on the basis of the demand for power predicted by the predicting portion. The power storage device includes a second control device, a DC/DC converter, a first battery cell group, and a second battery cell group. The power storage device is placed in an underfloor space surrounded by a base and a floor of a building.

Abstract: A power saving device includes a first switch coupled between an input node and an output node, wherein the input node is coupled to a power source and the output node is coupled to an electronic device, a detection unit detecting the magnitude of a current, a charge unit coupled to the output node, wherein the charge unit correspondingly generates a detection signal in response to magnitude of the current, a battery pack coupled to the charge unit, a second switch disposed between the output node and the battery pack and a controller. When magnitude of the current in response to the detection signal is lower than a threshold current and battery capacity of the battery back is higher than a predetermined capacity, the controller outputs a set of control signals to turn off the first switch and turn on the second switch.

Abstract: A system and method thereof to regulate a current to a capacitive load from a power supply connected to the capacitive load. The system includes a first switch between the power supply and the capacitive load, a super-capacitor configured for charging by the power supply and powering the capacitive load, a current limiting circuit between the super-capacitor and the power supply, a second switch between the super-capacitor and the capacitive load, and a power control circuit configured to control opening and closing of the first switch and the second switch independently, sense a voltage of the power supply, and sense a voltage of the super-capacitor.

Abstract: A control system, method, and device for managing variable power sources in DC power systems, such as photovoltaic (PV) systems. An electrical component can be configured to condition power from a photovoltaic (PV) panel such that current is drawn from the PV panel at a peak power continuously, at all times, or irrespective of current flux.

Abstract: Coupling circuit for coupling a power line communication device to a power line network, including a first network port coupled between a network phase line and a first network line, a second network port coupled between a network neutral line and a second network line, a third network port coupled between a network ground line and a third network line, a first differential modem port including a first terminal and a second terminal, a second differential modem port including a third terminal and a fourth terminal, a first transformer including a first network side winding and a first modem side winding, a second transformer including a second network side winding and a second modem side winding, the transformers including respective terminals, a center tap extending from the midpoint of the first network side winding to a terminal of the second network side winding and a plurality of capacitors.

Abstract: The present invention generally relates to powering a switching controller of a switch mode power converter (SMPC), and more particularly to a method of providing power to a switching controller of a SMPC, to a charging circuit for supplying charge to a charge store for providing power to a switching controller of a SMPC, and to an SMPC comprising such a circuit.

Abstract: A power feeding device receives power from a vehicle and feeds the received power to a load external to the vehicle. A communication unit communicates between the vehicle and the power feeding device. A power supply unit supplies the communication unit with power. When an external power supply has failed, the power feeding device supplies the power that is received from the vehicle to the power supply unit to activate the communication unit, and the power feeding device also transmits via the communication unit to an ECU a specification regarding power supplied from the external power supply to the load. While the ECU follows a predetermined specification to control the power feeding unit, once the specification regarding power supplied from the external power supply to the load has been received, the ECU follows the received specification, rather than the predetermined specification, to control the power feeding unit.

Abstract: A power switching apparatus includes: a first input terminal to which first power is supplied; a second input terminal to which second power is supplied, the second power having a voltage that is lower than a voltage that the first power has; a first output terminal to supply to an outside the first power supplied to the first input terminal; and a second output terminal to supply to the outside the second power supplied to the second input terminal. First switching means manages the supplying of the second power from the first input terminal to the second output terminal. Second switching means manages the supplying of the second power from the second input terminal to the second output terminal. A processor manages the supplies of the first power and the second power using the first and second switching means.

Abstract: The present invention relates to an HVDC switchyard arranged to interconnect a first part of a DC grid with a second part of the DC grid. By means of the invention, a first part of the DC grid is connected to the busbars of the HVDC switchyard via a fast DC breaker, while further part(s) of the DC grid are connected to the busbars of the HVDC switchyard by means of switchyard DC breakers of lower breaking speed. By use of the inventive HVDC switchyard arrangement, the cost for the HVDC switchyard can be considerably reduced, while adequate protection can be provided. In one embodiment, the fast DC breaker is an HVDC station DC breaker forming part of an HVDC station. In another embodiment, the fast DC breaker is a switchyard DC breaker.

Abstract: A data center includes a plurality of electronic devices, a plurality of cooling devices, and a power supply system. Each electronic device includes a power supply unit (PSU). The power supply system includes an alternating current (AC) power supply, an energy router electrically connected to the AC power supply to receive power from the AC power supply, and a high voltage direct current transmission (HVDC) system. The HVDC system is electrically connected to the energy router, each PSU, and each cooling device. The HVDC system receives power form the energy router, converts the received power into a high voltage direct current, and outputs the high voltage direct current to each PSU and each cooling device. Each PSU converts the high voltage direct current into an operation voltage of the electronic device to power the electronic device.

Abstract: A method and a system for controlling the charging and discharging of one or more battery packs (8) connected to a power source (7) or an apparatus (9) driven by the battery packs. The battery pack (8) comprises a number of battery cells connected to two or more terminals for establishing an electrical connection with the power source or the apparatus. The electronic system (2) for controlling the charging of the battery pack (8) and the electronic system (6) for controlling the operation of the apparatus (9) are integrated into the battery pack (8). The battery pack (8) comprises a communications interface for communicating with other battery packs (8) and generates a charging and discharging pool, where the most effective battery pack (8) to charge or discharge is charged and discharged first.

Abstract: A power supply system includes a switching power supply for outputting a predetermined DC voltage by converting an AC voltage from an AC power supply, a latching relay provided on an AC input line for switching a connection state of the switching power supply and the AC power supply in response to a relay drive signal, a storage circuit storing electricity from the switching power supply, a control device for receiving electric power from the storage circuit in a disconnection state, and a relay drive circuit for generating the relay drive signal and outputting it to the latching relay. The control device determines whether an amount of charge of the storage circuit has decreased to a predetermined amount of charge in the disconnection state, and generates and outputs the relay control signal to the relay drive circuit.

Abstract: An air conditioner which may controlled to adapt to changes in power rates, and an associated method, are provided. The method may include receiving electric power information, determining whether a current power rate included in the received information is higher than a preset reference value, and supplying electric power from a supplementary electric power source to at least one appliance in a network to which the air conditioner is connected if the current power rate is higher than the preset reference value.

Abstract: A case for an electronic device is provided. The case includes a battery and electrical circuitry. The electrical circuitry is configured to receive electrical power from a power source connected to the case, supply the electrical power to the electronic device, and monitor an amount of current of the electrical power used by the electronic device. The electrical circuitry is also configured to charge the battery using a remaining amount of current of the electrical power where the sum of the amount of current used by the electronic device and the remaining amount of current do not exceed a current limit for the power source.

Abstract: A system and methods for providing substantially uninterrupted electric power to one or more critical loads that significantly allows superior utilization of equipment and physical space, as well as reduction in the environmental footprint of systems for providing substantially uninterrupted electric power to one or more critical loads. The system and methods comprise an arrangement of power modules configured for providing substantially uninterrupted electric power to one or more critical loads using a combination of loads. The combination of loads generally follows a detailed method that comprises grouping of loads and mathematically determining the power relationships between the power modules and one or more loads. Generally, the method comprises determining the characteristics of the power lines that deliver substantially uninterrupted electric power from the power modules to one or more critical loads. Further, the system may comprise a plurality of power delivery architectures.

Abstract: An apparatus and a method are provided for managing energy harvested from one or more environmental sources and using the harvested energy to power an electronic device. An apparatus includes a primary power source and an energy harvester onboard the apparatus for converting energy from the environmental sources into harvested energy. The apparatus further includes an energy controller connected to the primary power source and the energy harvester, where the energy controller uses the harvested energy to power an electronic device onboard the apparatus. The electronic device can include a hazard detector or an access control device. The apparatus can also provide backup power using the harvested energy to power the electronic device when the primary power source fails.

Abstract: A controller implemented method for controlling supply of power from a first battery to at least one load is provided. The controller is configured to interface with a database that includes permission data representing at least one respective associated time period for the, or each, load. The method includes reading the permission data from the database and permitting supply of power from the first battery to the, or each, load during the time period associated with that load.

Abstract: In embodiments of the present invention improved capabilities are described for providing intelligent power control in response to an external power interruption, causing a processor is in an electrical fixture to interrogate an external power control switch to gain an understanding of the switch's state, where prior to the external power interruption the electrical fixture may be powered by external power and where external power may be connected and disconnected by a user of the switch. In the event that the switch's state is determined to be such that it would normally pass power to the electrical fixture, the processor causes the electrical fixture to operate using a backup power supply. In the event that the switch's state is determined to be such that it would normally not pass power to the electrical fixture, the processor causes the electrical fixture to act as if the user of the switch has intentionally removed power.

Abstract: A building power management system employs a power manager and a plurality of load circuits (e.g., outlet circuits, appliances, equipment, etc.). In operation, the power manager senses (directly or indirectly) a source voltage at a power source node, sheds one or more of the load circuits from a power source node in response to the source voltage sagging below a source voltage limit, and reconnects shedded load circuit(s) to the power source node upon the source voltage exceeding the source voltage limit. Further, the program manager senses (directly or indirectly) a source current flowing through the power source node, sheds one or more of the load circuits from the power source node in response to the source current exceeding a source current limit, and reconnects shedded load circuit(s) to the power source node upon the source current sagging below the source current limit.

Abstract: Systems, methods, computer-readable storage mediums including computer-readable instructions and/or circuitry for control of transmission to a target device with communicating with one or more sensors in an ad-hoc sensor network may implement operations including, but not limited to: generating electrical power from at least one ambient source via at least one structurally integrated electromagnetic transducer; powering at least one transmitter via the electrical power to wirelessly transmit one or more sensor operation activation signals to one or more sensors; and at least one of powering one or more sensing operations of one or more sensors via the electrical power or charging one or more power storage devices electrically coupled to the one or more sensors via the electrical power.

Abstract: A parallel boost voltage power supply with local energy storage comprises a local energy storage and a local energy storage boost converter that boosts the voltage of the local energy storage and provides it to existing DC bulk storage circuitry. Diodes in series with the boost converter and an existing power factor correction boost converter enable the DC bulk storage circuitry to receive power from both the local energy storage and external power sources. Transition between local energy storage and external power sources is performed in a controlled manner to avoid overloading external power sources. Additionally, local energy storage devices are recharged from an existing isolation transformer circuit in the power supply if the power being drawn from external sources is below a threshold. Operation without external power is extended via communications with server computing devices resulting in decreased power consumption by deactivating components or throttling down processors.

Abstract: A power apparatus comprising an input connectable to a mains electrical supply; an energy storage device; a supply converter selectively connectable to an electrical supply to convert electrical power from the electrical supply to energy for storage in the energy storage device; a load converter arranged to convert energy from the energy storage device to electrical power for supply to an electrical load; an output, selectively connectable to either of the input or the load converter, by which the electrical load is coupled to the apparatus to receive electrical power; and a control device, coupled to a communications network, configured to: receive, from the communications network, time-dependent electrical pricing data associated with the mains electrical supply; determine a schedule using at least the received time-dependent electrical pricing data for each of (i) charging the energy storage device, (ii) supplying power from the input to the output, and (iii) discharging the energy storage device to the ou

Abstract: A photovoltaic system has a plurality of subsystems, each with a photovoltaic generator and an associated inverter. The inverter has a control element for setting the maximum power point of its subsystem. A battery is connectible in parallel with the photovoltaic generator. The inverters are connectible to a power grid, which is operated by a utility operator. When a control device receives an emergency signal from the utility operator indicating impending instability of the grid, the following is initiated: If the battery voltage is above the current voltage as set by the MPP control element, the battery is immediately connected to the input of the inverter while the generator remains connected to the inverter. If the battery voltage is below the current voltage the battery connection is delayed until the MPP control element has adjusted the voltage. Then the voltage is further lowered to generate a discharge current from the battery.

Abstract: A multi-output power supply comprises an input power port for receiving input power, a first output power port supplying a first voltage derived from the input power, a second output power port supplying a second voltage derived from the input power, and a shut-down circuit configured to shut down the first output power port, independently of the second output power port, if power drawn from the first output power port exceeds a first predetermined value.

Abstract: A bulk power assembly includes a bulk power distribution (BPD) subassembly and a bulk power controller and hub (BPCH) subassembly coupled to the BPD subassembly. The BPD assembly is configured to provide bulk DC power from both AC input power and DC input power. The BPD subassembly is configured to distribute the DC bulk power. The BPCH subassembly is configured to monitor and control the BPD assembly.

Abstract: An electrical apparatus includes a main unit which consumes electrical power; a power supply unit which supplies electrical power from a commercial power source to the main unit; a secondary battery to be charged with electrical power supplied from the power supply unit; and a power source control unit. In a state where a power source of the main unit is the power supply unit, when power consumption of the main unit exceeds a first threshold, the power source control unit changes the state to another state where the power source of the main unit is the power supply unit and secondary battery.

Abstract: The present invention relates to a redundant power supply system for wind turbine control systems, said power supply system being adapted to supply power to one or more power consumers of a wind turbine control system, the redundant power supply system comprising a first power rail, a second power rail, and switching means being adapted to select the first or the second power rail so as to provide power to at least part of a power consumer from either the first power rail or the second power rail. The invention further relates to an associated method.

Abstract: An electrical power system for a nuclear power facility includes an active alternating current (AC) power bus configured to be electrically coupled to a plurality of engineered safety feature (ESF) loads of a plurality of nuclear power systems, each of the ESF loads configured to fail to a safe position upon loss of primary AC power; a critical battery system electrically coupled to the active AC bus, the critical battery system comprising a plurality of valve regulated lead acid (VRLA) batteries; and a primary AC power source electrically coupled to the active AC bus.

Abstract: A power storage system includes a battery that stores power, a first switch connected between a first node and the battery, the first switch forming a path for charging the battery and including a body diode, and a first diode connected between terminals of the first switch and forming a path for discharging the battery.

Abstract: A mobile cart has a battery assembly, which includes an on-board charger for selectively recharging one or more batteries to ensure constant operation of the powered equipment provided on the cart. The battery assembly possesses a removable battery configuration and is operated by a Battery Control System (BCS). The BCS is an intelligent control system for removable batteries and battery cell packs to provide an improved system of charging and discharging the individual batteries.

Abstract: A startup control method of controlling startup of a PV PCS 150 configured to perform interconnected operation in which a PV 100 is interconnected to a grid 10 to supply power to a load 400: supplies power from independent operation output of the PV PCS 150 to a storage PCS 250 by an independent operation that does not interconnect the PV 100 to the grid 10 before starting the interconnected operation; measures the output power amount of the PV 100 or the PV PCS 150 when the power is supplied to the storage PCS 250; and stops the independent operation to start the interconnected operation when the measured output power amount is larger than a predetermined amount.

Abstract: An electric power control system includes an electric power supply system, a load, a power source switching unit, a charge-discharge switching unit, a converting unit, an electric power storage device, a discharge detection unit, a power supply detection unit, and a control unit. The control unit controls the discharge detection unit to detect a state of a first AC power converted by the converting unit from a DC power charged in the electric power storage device, and controls the power supply detection unit to detect a state of a second AC power supplied from the electric power supply system. The control unit regulates the first AC power based on a phase difference between the first AC power and the second AC power, and supplies the first AC power to the load.

Abstract: The present invention is to reduce the possibility that a DC-DC converter stops in the case where supply power is small and load current is large. Output terminals use a DC output voltage of a DC-DC converter so that an external battery can be charged or power can be supplied to a power-reception-side system on the outside, and a current limiting circuit limits load current of a power supply switch transistor flowing from a converter output terminal to the output terminals. An input voltage detecting circuit detects level of a DC input voltage of an input terminal, generates a detection signal, and supplies the detection signal to the current limiting circuit. In the case where the DC input voltage of the input terminal is at the low level, the current limiting circuit controls the maximum current by current limitation of the power supply switch transistor to a small current.