Abstract: A method and apparatus for providing welding type power on one of at least two output terminals is disclosed. Input power is received and welding type power is derived and provided by a shared power circuit. The welding type power is provided across a shared terminal and only two process terminals in response to a desired process. The desired process can be set bu user input, feedback, or sensing working connections. The process terminal is selected by selectively opening and closing at least two controllable switches.

Abstract: A vehicle-mounted power supply system that multiplexes power supplies in a vehicle and reliably supplies power of a voltage varying from a high voltage to a low voltage. The vehicle-mounted power supply system includes a primary power storage device, a secondary power storage device, and a power generation device. The primary power storage device has a high-voltage output terminal and a low-voltage output terminal. The power generation device supplies power to the primary power storage device and the secondary power storage device. The power supply system further includes: a first switch disposed between the power generation device and the primary power storage device; a second switch disposed between the power generation device and the secondary power storage device; and a third switch disposed between the low-voltage output terminal of the primary power storage device and the output terminal of the secondary power storage device.

Abstract: Apparatuses, systems, and methods of apportioning an aggregate maneuver is disclosed. An aggregation engine receives aggregation opportunity information requesting an aggregate change in power of one or more sites. The aggregation engine transmits participation opportunity information to a plurality of site controllers. The participation opportunity information indicates a site benefit for providing a site change in power. The aggregation engine also receives commitment information from the plurality of site controllers, the commitment information indicating levels of commitment of the plurality of site controllers to contribute site change in power to a target change in power of the aggregation opportunity.

Abstract: A solar photovoltaic (PV) water heating system includes a tank (1.020) including at least a first heating unit (1.016) having at least first and second heating elements (1.016.1 . . . 1.016.x), at least one of which is switchable (1.014.1A . . . 1.014.1m); a PV solar collector (1.002); an inverter (1.004) adapted to convert the output from the PV collector to an alternating power supply; a modulator (1.060) to modulate the alternating power supply from the inverter; a controller (1.040) adapted to control the modulator and the switching of the or each switchable heating element; wherein the controller is adapted to control the modulator and the switchable heating elements to maximize the energy drawn from the PC collector.

Abstract: An electric grid comprising a first section comprising transmission equipment, power generation equipment, and electric transmission lines designed to serve an electric load within the first section independently of a second section, wherein the second section comprises the remaining electric grid excluding the first section. The system includes at least two electric connections between the first and second sections of the electric grid and a control system controlling operation of the first section independently of the second section. The first section comprises at least two of power generation, electricity storage, demand response, transmission equipment and electric loads within the first section and controls capable of balancing loads within the first section and controlling disconnection and reconnection with the second section via the electric connections. The first section synchronized in frequency and phase with the electric grid when power is restored to the electric grid.

Abstract: A power converter comprises a chassis and an AC connector, a low-voltage DC connector and a high-voltage DC connector at an exterior surface of the chassis. An AC-DC converter circuit is positioned at least partially within the chassis and is coupled to the AC connector. A first converter circuit is positioned at least partially within the chassis and is coupled to the AC-DC converter circuit and to a high-voltage DC bus. The high-voltage DC bus is connected to the high-voltage DC connector. A second converter circuit is positioned at least partially within the chassis and is coupled to the high-voltage DC bus to a low-voltage DC bus. The low-voltage DC bus is connected to the low-voltage DC connector.

Abstract: The disclosure relates to a method for controlling a heat distribution system.

Abstract: Methods for providing power to electronic components (e.g., servers in a datacenter, or other devices) can include providing AC power received from an external source to the devices. During periods of high demand, when costs of external AC power exceed a threshold, or when availability of external AC power is decreased, distributed backup power supply systems can be utilized to temporarily offset or to reverse consumption of external AC power. Such distributed backup power systems can be periodically recharged during periods of low power demand, and thus consistently retain adequate charge for backup use in the event of power loss.

Abstract: A semiconductor device includes a regulator circuit, a wire, n load circuits, and an analog circuit. The wire is connected to the regulator circuit and including n connection nodes (n is an integer of 2 or more). The n load circuits are connected to the n connection nodes, respectively. The analog circuit is connected between the n connection nodes and the regulator circuit. The analog circuit is configured to generate an average voltage of n voltages at the n connection nodes. The regulator circuit is configured to generate an output voltage supplied to the wire based on the average voltage generated by the analog circuit.

Abstract: A charger device includes a Single-Input-Multiple-Output (SIMO) device and a controller. The SIMO device includes a first transistor connected to an input and a first end of an inductor, a second transistor connected to ground and the first end of the inductor, a third transistor connected to a second end of the inductor and a first output, and a fourth transistor connected to the second end of the inductor and a second output. The controller is connected to the SIMO device and is configured to cause the SIMO device to charge the inductor using a first power source coupled to the input during a first time period and discharge the inductor to charge a second power source coupled to the first output during a second time period.

Abstract: A control module for operation of downhole well tools and apparatuses is disclosed. The control module can control multiple tools, electronics, subs, etc. based on one electronic input and optionally one hydraulic input from the wellhead or surface. The control module can transmit along selected electronic lines and optionally hydraulic lines in order to control specific apparatuses of the downhole well tools. By allowing a single electronic line from the surface or shut in to control multiple tools, total electronic complexity is reduced. A three conductor control module can control operations of up to twelve downhole tools, and a two conductor control module can control operations of up to six downhole tools, in some embodiments.

Abstract: An electronic device for series connection on a power supply line includes a plurality of switches and a control unit configured to perform the following steps: operating error detection means during operation of the device in a first mode; operating the device in a second mode in response to an erroneous power state being detected by the error detection means during operation of the device in the first mode; operating the error detection means during operation of the device in the second mode in order to determine an error location associated with the erroneous power state detected by the error detection means during operation of the device in the first mode.

Abstract: A multicopter is provided. The multicopter may include a main body part, a wing part having one end connected to the main body part, and the other end connected to a propeller assembly, and a foldable part disposed on the wing part to fold the wing part, wherein the wing part is located above the main body part with respect to a Z-axis.

Abstract: A combined electric tool coordination system includes a main tool (4) and an auxiliary tool (1). The main tool (4) and the auxiliary tool (1) coordinate for working. A load detection module (E1) is used to detect a load parameter that is generated when the main tool (4) operates, and send the load parameter to a central control module (E2). The central control module (E2) adjusts output power of the auxiliary tool (1). The central control module (E2) controls power of the auxiliary tool (1) to increase as the load parameter of the main tool (4) increases and decrease as the load parameter decreases. An automatic adjustment function of the auxiliary tool (1) is applied to a dust collector (1).

Abstract: Aspects of the present disclosure generally relate to methods and apparatus for continuous current sensing for a single-inductor multiple-output (SIMO) regulator. One example method includes operating a plurality of switches of the SIMO regulator, via a plurality of control signals, according to a plurality of switching states using a switching controller, sensing currents associated with at least a portion of the plurality of switches of the SIMO regulator using a plurality of current sense circuits, and selectively outputting a sense current from one of the plurality of current sense circuits based on a change in the plurality of controls signals occurring between a transition from a first switching state to a second switching state of the plurality of switching states.

Abstract: The present disclosure provides systems and methods for managing electrical energy generated by a renewable microgrid. One or more processors of a system may store priorities for one or more consumer loads; forecast an amount of available electrical energy for a time period; allocate a first electrical energy amount to a first consumer load to a first energy limit for the time period; determine more electrical energy is forecast to be available from the RES or the ESS for the time period; identify a second consumer load of the one or more consumer loads; allocate a second electrical energy amount to the second consumer load for the time period; and direct electrical energy from the RES or the ESS to the first and second consumer loads according to the allocations.

Abstract: The present specification relates to a power supply system enabling uninterruptible power supply, the system including a circuit breaker for regulating respective converters to which a plurality of power supply devices are connected, so as to control a power supply and demand by the opening and closing of the circuit breaker according to various situations occurring in the system, thereby enabling a UPS function to be performed between the plurality of power supply devices.

Abstract: The present disclosure provides systems and methods for managing electrical energy generated by a renewable microgrid. One or more processors of a system may store priorities for one or more consumer loads; forecast an amount of available electrical energy for a time period; allocate a first electrical energy amount to a first consumer load to a first energy limit for the time period; determine more electrical energy is forecast to be available from the RES or the ESS for the time period; identify a second consumer load of the one or more consumer loads; allocate a second electrical energy amount to the second consumer load for the time period; and direct electrical energy from the RES or the ESS to the first and second consumer loads according to the allocations.

Abstract: An electronic device for series connection on a power supply line, wherein the device comprises a plurality of switches comprising at least a first switch, a second switch, and a third switch. The device further comprises a control unit configured to perform the following steps: operating error detection means during operation of the device in a first mode; operating the device in a second mode in response to an erroneous power state being detected by the error detection means during operation of the device in the first mode; operating the error detection means during operation of the device in the second mode in order to determine an error location associated with the erroneous power state detected by the error detection means during operation of the device in the first mode.

Abstract: A power distribution assembly that includes a planar substrate, a set of switchable elements arranged on the planar substrate, a conductive bus bar underlying the planar substrate and interconnected with the set of switchable elements, and a set of power connections. The power distribution assembly distributes power from a power source to one or more loads.

Abstract: The invention relates to a multi-objective optimization method for power system peak-shaving based on index linkage analysis. The invention comprehensively considers five peak shaving indexes, and introduces a linkage analysis theory in economics to test stationarity and causality of data series of peak-shaving indexes. The purpose is to effectively clarify linkage relationship between indexes. A regression analysis method is used to quantify the mutual influence relationship. A multi-index coupling peak shaving optimization model for generation scheduling is developed and finally solved by using genetic algorithm. The invention can objectively describe comprehensive peak shaving requirements of a provincial power grid, and is helpful for generation dispatcher to reduce subjective assumptions in the decision-making.

Abstract: Safety power disconnection for remote power distribution in power distribution systems is disclosed. The power distribution system includes one or more power distribution circuits each configured to remotely distribute power from a power source over current carrying power conductors to remote units to provide power for remote unit operations. A remote unit is configured to decouple power from the power conductors thereby disconnecting the load of the remote unit from the power distribution system. A current measurement circuit in the power distribution system measures current flowing on the power conductors and provides a current measurement to the controller circuit. The controller circuit is configured to disconnect the power source from the power conductors for safety reasons in response to detecting a current from the power source in excess of a threshold current level indicating a load.

Abstract: An apparatus such as a network switch includes a power supply device configured to control power supplied through ports such as Ethernet ports to the network devices such as wireless access portions that are part of a local network. The apparatus further includes a second power supply device with one or more switched outlets for providing direct power other devices of the local network. A controller in the apparatus may be programmed to control the power supply devices to execute to a diagnostic procedure or a reset procedure that cycles power, off and then on, to devices of the local network.

Abstract: The methods and systems are provided to adaptively change power threshold at a policy based power supply device (PBPSD). The PBPSD (101) retrieves a first power policy and determines a power threshold substantially based on the first power policy. A power port authority is also determined based on the first power policy. The PBPSD (101) then provides power to each of the plurality of power ports based on the power threshold and the power port priority. The PBPSD (101) comprises a first processor, a plurality of power connectors, and a plurality of AC-DC regulators. Each of the plurality of power connectors is capable of receiving electricity from a power supply.

Abstract: In some examples, an electronic device can include a battery, a power adapter, a processing resource, and a memory resource storing machine-readable instructions to cause the processing resource to determine monitored user behavior data exceeds a predetermined threshold, and responsive to the predetermined threshold being exceeded, provide a notification including a recommended threshold charge level, where the recommended threshold charge level is a percentage of an overall possible charge percentage of the battery.

Abstract: Embodiments may include apparatuses, systems, and methods for direct current power distribution. An apparatus includes a first power contact, a second power contact, and a controller coupled to the first power contact and the second power contact. The first power contact is coupled to a first power distribution line supplying DC power to the first power contact at a first voltage level. The second power contact is coupled to a second power distribution line supplying DC power to the second power contact at a second voltage level different from the first voltage level. The controller is to control a first power connection established with the first power contact based on a first power contract, or a second power connection established with the second power contact based on a second power contract. Other embodiments may be described and/or claimed.

Abstract: A system of electrical distribution within a building, which selectively energizes power sockets only when an appliance is connected to the socket and in need of power.

Abstract: A solar photovoltaic (PV) water heating system includes a tank (1.020) including at least a first heating unit (1.016) having at least first and second heating elements (1.016.1 . . . 1.016.x), at least one of which is switchable (1.014.1A . . . 1.014.1m); a PV solar collector (1.002); an inverter (1.004) adapted to convert the output from the PV collector to an alternating power supply; a modulator (1.060) to modulate the alternating power supply from the inverter; a controller (1.040) adapted to control the modulator and the switching of the or each switchable heating element; wherein the controller is adapted to control the modulator and the switchable heating elements to maximize the energy drawn from the PC collector.

Abstract: A method for power management in an electronic circuit that comprises a processing system and an RF embedded circuit includes: generating a first regulated voltage with a power regulation module of the RF embedded circuit; generating a second regulated voltage from the first regulated voltage with a first linear regulator of the processing system; and controlling the power regulation module of the RF embedded circuit to operate according to a plurality of operation modes. The operation modes include: a first sleep mode in which a switched-mode power supply of the RF embedded circuit is off and a second linear regulator of the RF embedded circuit is off; a second sleep mode in which a switched-mode power supply is off and the second linear regulator is on; and a third sleep mode in which the switched-mode power supply is on and the second linear regulator is off.

Abstract: The invention relates to a PSE device (2) to be used in a PoE lighting system (1), wherein the PSE device (2) is adapted to receive input power from a power providing system (7). The PSE device (2) comprises a power detection unit for detecting whether the received input power is primary input power or backup input power, wherein the PSE device (2) is adapted to control the power consumption of lighting units (31, 32) depending on the power detection. This allows for an indication of an emergency situation, in which the backup input power is provided, to the PSE device (2) without necessarily requiring data communication means. Moreover, the power consumption of the lighting units (31, 32) can be more efficiently utilized in case of emergency.

Abstract: A first device, such as a charger, includes electrical contacts to supply power to a second device, such as a wearable device. The first device includes a detection circuit that measures a sense voltage proportional to an effective resistance, which includes resistances of the contacts, an internal resistance of the second device, and any contaminants between the contacts. When the sense voltage is within a range, the detection circuit determines the second device is compatible and correctly oriented and determines there are insufficient contaminants to alter the effective resistance. The first device de-energizes the contacts while the sense voltage is outside of a voltage range and provides a power supply to one or more of the contacts when the sense voltage is within the voltage range. In some aspects, the detection circuit may delay the power supply for a period of time to avoid false detection events.

Abstract: A lighting device includes a light source, an auxiliary device, and a control device configured to detect toggles of a switch that controls availability of an input power to the lighting device including the light source. The control device is configured to change an operation mode of the auxiliary device based on the toggles of the switch.

Abstract: A table key capable of decrypting a first table from a plurality of encrypted tables may be received. Each of the encrypted tables may include at least one pair of values corresponding to a challenge value and a response value. A request to authenticate a secondary device may be received and in response to the request to authenticate the secondary device, a challenge value obtained by using the table key to decrypt an entry in the first table may be transmitted to the secondary device. A second challenge value may be transmitted to the secondary device and a cryptographic proof may be received from the secondary device. The validity of the cryptographic proof received from the secondary device may be authenticated based on the second challenge value and the response value obtained by using the table key to decrypt the entry in the first table.

Abstract: A power gating circuit includes a first switch circuit, a gate circuit, and a second switch circuit. The first switch circuit is configured to disconnect a first voltage line from a second voltage line while a logic block connected to the first voltage line is in a first operation state. The gate circuit is configured to output a control signal having a first logical value if a level of a first voltage on the first voltage line is lower than a reference level while the logic block is in the first operation state. The second switch circuit configured to connect the first voltage line to the second voltage line based on the first logical value of the control signal. The reference level is based on a type of a logic gate included in the gate circuit.

Abstract: A computer-implemented method for implementing a demand response (DR) event includes receiving a demand request (DR) signal for the DR event, determining a vehicle specific incentive price range for each vehicle of a group of vehicles, and selecting vehicles from the group of vehicles to form a subgroup of vehicles. The subgroup of vehicles maximize a number of vehicles participating in the DR event and maximize a profit of each vehicle in the subgroup of vehicles based on the vehicle specific incentive price range for each vehicle in the group of vehicles, subject to the DR incentive amount. The DR signal is transmitted to each vehicle in the subgroup of vehicles.

Abstract: A power factor correction circuit can include: a power meter configured to measure a power factor at an input port; a switching-type regulator that is controllable by a switching control signal in order to adjust the power factor of an input AC power; an EMI filter disposed between the switching-type regulator and the input port; and a controller configured to generate the switching control signal to maximize the power factor by adjusting a current reference signal according to a measured power factor, where the current reference signal represents an expected inductor current of the switching-type regulator.

Abstract: One or more of the present embodiments allows multiple controllers to be automatically configured as a single or multi-rail voltage regulator system using a local bus that can communicate between controllers with a minimal set of pinstraps. This allows the system to be configured with a reduced set of configuration pins and without the need for stored configurations in the controller's own memory or configurations performed by an external host.

Abstract: A control device which controls the power of a plurality of apparatuses in a home network, and a method thereof are provided. The control device includes an input unit which receives a power off command, and a control unit which concurrently turns off apparatuses which are currently turned on among the plurality of apparatuses in response to the power off command received by the input unit. Therefore, it is possible for a user to concurrently turn off currently running apparatuses so user convenience can increase.

Abstract: A method of preventing disjunctions in a power distribution unit having a plurality of output connectors is disclosed. A power level of each of the output connectors is sensed. It is detected that the power level of a given output connector exceeds a fixed power limit. In response to the detection, a delivery of power by the given output connector is stopped while maintaining a delivery of power by a remainder of the output connectors. Power delivery may be resumed in response to receiving a user command to rearm the given output connector. A power distribution unit adapted to prevent disjunctions is also disclosed.

Abstract: A fast charging circuit includes a switching charger and a first bypass charging circuit. The input end of the switching charger receives an input voltage, and the output end of the switching charger is coupled to a battery through a first switch and is coupled to a system terminal. The first bypass charging circuit includes a second switch between its input end and output end. The input end of the first bypass charging circuit receives the input voltage, and the output end of the first bypass charging circuit is coupled to the system terminal through the first switch and is coupled to the battery. When the voltage of the battery is low, the first switch is turned on and the second switch is turned off, but when the voltage of the battery is high, the second switch and the third switch are turned on.

Abstract: To start power supply at a high current without applying USB Power Delivery, a power supply system includes a power supply device having a first USB connector conforming to the USB Type-C standard, and a power receiving device having a second USB connector conforming to the USB Type-C standard. The second USB connector includes a high current notification pin for notifying that it is possible to receive power at a high current greater than a predetermined reference current. When the second USB connector is coupled to the first USB connector, the power receiving device notifies the power supply device of the fact that it is possible to receive power at a high current greater than the predetermined reference current, through the high current notification pin. When receiving the notification, the power supply device determines that it is possible to start power supply to the receiving device at a high current.

Abstract: Disclosed herein are two-wire communication systems and applications thereof. In some embodiments, a slave node transceiver for low latency communication may include upstream transceiver circuitry to receive a first signal transmitted over a two-wire bus from an upstream device and to provide a second signal over the two-wire bus to the upstream device; downstream transceiver circuitry to provide a third signal downstream over the two-wire bus toward a downstream device and to receive a fourth signal over the two-wire bus from the downstream device; and clock circuitry to generate a clock signal at the slave node transceiver based on a preamble of a synchronization control frame in the first signal, wherein timing of the receipt and provision of signals over the two-wire bus by the node transceiver is based on the clock signal.

Abstract: A heating system for a vehicle includes: a heater for non-contact heating that emits radiation heat by heat supplied from its heat generating part, which generates heat upon energization, to give warmth to an occupant in a state where a body of the occupant is not in contact with the heater; a heater for contact heating that generates heat upon energization to give warmth to the occupant in a state where the body of the occupant is in contact with the heater; and a control device that controls operations of the heater for contact heating and the heater for non-contact heating. The control device adjusts a heating output provided by the heater for contact heating and a heating output provided by the heater for non-contact heating, and controls the operations. Therefore, the occupant can enjoy a sense of heating that is not stereotypical, and achieve energy saving.

Abstract: Disclosed are systems and methods for monitoring and controlling the distribution of electricity. The power distribution platform includes an intelligent device that controls power delivery to a singular or plurality of end users. The device controls the times during which energy is delivered, and limits the electrical current available on a per socket basis. By limiting current draw, system operators can ensure that only high value appliances (LED lights, phone charging etc.) are powered. Local intermediaries buy credit in bulk from a power system operator, then sell it to users via a portable digital storage medium and mobile device in increments of days, weeks or months. Once loaded with credit, a user's power program is allowed to continue running for the specified duration. Further aspects of the embodiment include; usage data logging to cloud server, power theft detection and methods of synchronizing internal clocks of each intelligent device.

Abstract: A server room power management apparatus and method, the power management apparatus comprising a first PDE (power distribution equipment), at least one second PDE and at least one DM (digital meter); wherein a first network interface unit of the first PDE, a second network interface unit of the second PDE and the DM can be connected to become a network; the power management method uses a first processor of the first PDE to collect power consumptions of the second PDE and the DM; wherein, the first processor can work out power usage effectiveness; thus, the apparatus and method do not need an independent server device, that will reach power saving and reduce apparatus costs.

Abstract: Disclosed are a priority-based energy distribution method and a priority-based energy distribution system for performing the priority-based energy distribution method. The method may include receiving an energy distribution request including information on demand energy amounts from energy consumers, determining a priority of each of the energy consumers with respect to each of energy suppliers, determining an optimal energy amount of each of the energy consumers based on the determined priority, the demand energy amounts, and available distribution energy resources of the energy suppliers, and distributing energies of the available distribution energy resources to the respective energy consumers based on the determined optimal energy amount.

Abstract: A direct current (DC) deicing control system including a direct current (DC) power source, and a periodic deicing waveform generator electrically connected to the DC power source. The periodic deicing waveform generator outputs a switched DC voltage having a periodic electrical current waveform including periods of zero voltage and periods of non-zero voltage. The periods of zero voltage define arc extinguishing events reducing arc formation in the DC deicing control system.

Abstract: A system and method for providing variable power is disclosed. The system includes a power supply which provides power to at least one instrument. A pedal comprises a variable resistor that is configured to produce a resistance value within a predetermined range based on an amount of pressure which is being applied to the pedal. The voltage being supplied to the instrument is varied in accordance with the resistance value produced at the pedal.

Abstract: A method and apparatus for controlling distribution of power is provided. The apparatus comprises a plurality of power outlets including a master power outlet (12M) and at least one controlled power outlet (12S), a control circuit configured to sense a characteristic of power delivered to the master power outlet (12M), a relay circuit coupled to the control circuit and a power supply configured to provide power to the control circuit and to the relay circuit. The power supply adjusts a voltage level on the base of the power delivered to the master power outlet. The apparatus can reduce energy consumption.

Abstract: An electricity distribution system includes an electricity supply control unit that receives information on power consumption, estimates the current and the future power consumption, and controls the supply of electricity to the electric device; an information display unit that displays information on a power use situation of an electric device electrically connected with the electricity supply control unit; and a battery server that accumulates power, in which the electricity supply control unit communicates the information on the power consumption with a new electric device when the new electric device is electrically connected, and when the amount of available power is exceeded by supplying electricity to the electric device, does not supply electricity to the electric device, makes the information display unit display that the amount of available power is exceeded by supplying electricity to the information display unit, and determines whether to use the power accumulated in the battery server.