Abstract: This disclosure provides systems, methods, and apparatus for controlling transitions in an optically switchable device. In one aspect, a controller for a tintable window may include a processor, an input for receiving output signals from sensors, and instructions for causing the processor to determine a level of tint of the tintable window, and an output for controlling the level of tint in the tintable window. The instructions may include a relationship between the received output signals and the level of tint, with the relationship employing output signals from an exterior photosensor, an interior photosensor, an occupancy sensor, an exterior temperature sensor, and a transmissivity sensor. In some instances, the controller may receive output signals over a network and/or be interfaced with a network, and in some instances, the controller may be a standalone controller that is not interfaced with a network.

Abstract: A load control system may include control devices for controlling power provided to an electrical load. The control devices may include a control-source device and a control-target device. The control-target device may control the power provided to the electrical load based on digital messages received from the control-source device. The control devices may include a load control discovery device capable of sending discovery messages configured to discover control devices within a location. The discovered control devices may be organized by signal strength and may be provided to a network device to enable association of the discovered control devices within a location. The discovery messages may be transmitted within an established discovery range. The discovery range may be adjusted to discover different control devices. Different control devices may be identified as the load control discovery device for discovering different control devices.

Abstract: A load testing device includes a connection unit to which a power source being tested is connected, a hydrogen generating unit that performs electrolysis based on power supplied from the power source being tested to generate hydrogen, two or more supply units to which hydrogen obtained in the hydrogen generating unit passes and to which a portable tank is removably attached, and an operational unit that has a load amount adjustment switch and a display unit. The load amount of the hydrogen generating unit is switched depending on an operational state of the load amount adjustment switch. The display unit displays at least one of an attachment status of the portable tank and a filling status of hydrogen in the two or more supply units.

Abstract: A light includes a housing having a lens, a bottom cover, and a middle cover positioned between the lens and the bottom cover. The lens, the bottom cover, and the middle cover cooperate to form a water-tight space. The light additionally includes a chimney having a hollow tube extending from a bottom of the housing to a top of the housing, a heat sink coupled to the chimney and positioned within the lens, and one or more LEDs coupled to the heat sink to emit light through the lens. The light also includes a circuit board positioned within the water-tight space and coupled to the one or more LEDs to control operation of the light.

Abstract: A DC power supply system includes: a natural energy power generator connected to a DC bus through a first DC-DC converter; a load device connected to the DC bus through a second DC-DC converter; a storage battery connected to the DC bus through a third DC-DC converter and configured to be charged with a generated power when the generated power is larger than a load power and to be discharged to supply power to the load device when the generated power is smaller than the load power; and a power management apparatus that manages operations of the first to third DC-DC converters based on current power generation amount and load power amount, prediction values for future power generation amount and load power amount, a remaining capacity of the storage battery, preset target values for respective blackout rate, battery lifetime, and power suppression rate, and the priorities among the target values.

Abstract: The power conversion device includes common DC buses, AC buses, DC connection terminals, AC connection terminals, N pairs of distributed power supply connection terminals, N DC/DC converters for transferring power between the common DC buses and the distributed power supply connection terminals, M DC/AC converters for transferring power between the AC buses and the common DC buses, and a control unit for controlling each converter on the basis of a high-order control command. The DC connection terminals are connected to the common DC buses and connected to an external DC power distribution grid, the AC connection terminals are connected to the AC buses and connected to an external AC power distribution grid, and the distributed power supply connection terminals are connected to the DC/DC converters and connected to external DC distributed power supplies.

Abstract: Disclosed techniques enable power manipulation within a data center based on power policies. Power policies are used to establish behavior based on limits for power consumption, power generation, and other criteria. Rules are established to provide fractional power sharing and control under certain conditions. Power caches are used to supplement power sources under conditions of peak power requirements. When power requirements are below a threshold set forth in a power policy, the power caches are replenished.

Abstract: A driver circuit receiving wireless communication over a wireless network is disclosed. The driver circuit includes a lighting load, a main driver, and an auxiliary driver. The lighting load is selectively illuminated based on an output voltage being provided to the lighting load that is at least a forward voltage of the lighting load. The wireless communication is indicative of whether the lighting load is to be illuminated. The main driver is for controlling current and voltage within the driver circuit such that if the wireless communication indicates the lighting load is to be illuminated, then the current delivered to the lighting load is regulated by the main driver, and if the wireless communication indicates the lighting load is not to be illuminated, then the output voltage delivered to the lighting load is controlled by the main driver is below the forward voltage.

Abstract: A parameter identification circuit for a digital power converter having an inductor and a capacitor, can include: an inductor parameter circuit that receives an inductor current of the inductor, a capacitor voltage of the capacitor, a duty cycle in a start-up stage, and a predetermined inductor current, where the inductor parameter circuit obtains an inductor parameter according to an integrated value of the capacitor voltage, an integrated value of the duty cycle in the start-up stage, and the predetermined inductor current, when the inductor current rises to a level of the predetermined inductor current; and a capacitor parameter circuit that receives the inductor current, the capacitor voltage, and a predetermined capacitor voltage, where the capacitor parameter circuit obtains a capacitor parameter according to an integrated value of the inductor current and the predetermined capacitor voltage when the capacitor voltage rises to a level of the predetermined capacitor voltage.

Abstract: An intelligent light bulb is provided as well as a method, devices and computer program product of configuring such an intelligent light bulb. The intelligent light bulb comprises an LED lighting element and a programmable controller. The programmable controller comprises a memory module having stored therein firmware including instructions for controlling operations of the LED lighting element, where the memory module including a passive memory on which at least a portion of the firmware is stored. The passive memory component of the memory module is responsive to a signal carrying firmware update information received over a wireless communication link from a device external to the intelligent light bulb for causing a firmware update process to be performed to modify the instructions of the firmware based on the update information carried by the signal.

Abstract: An LED dimming method, a regulatable LED power supply, an electronic apparatus, and a readable storage medium are provided. The regulatable LED driver includes a main power supply circuit, a Bluetooth module, a Bluetooth control module, and a dimming circuit, the first dimming instruction sent by the control terminal is received through the Bluetooth module, the Bluetooth control module controls the dimming circuit to regulate an output power outputted to the LED load according to the first dimming instruction, so as to adjust a parameter of the LED load, so that the regulatable LED driver may be controlled by the control terminal remotely, enabling the flexible adjustment of the parameters of the LED load, and improving the convenience of adjusting a display parameter of the LED load.

Abstract: The printing apparatus of the present invention is a printing apparatus including: a power source switch that switches a power source to on or off; a control circuit configured to control supply or shutoff of power from the power source; and a measurement unit configured to measure a predetermined set time after the power source switch is switched to off, and the predetermined set time is set in accordance with processing being performed, and the control circuit performs control, in a case where the power source switch is switched to off, so as to shut off supply of power from the power source in accordance with completion of termination preparation of the processing being performed or completion of measurement of the predetermined set time in the measurement unit.

Abstract: A light bulb adapter is disclosed. The light bulb adapter has a main housing configured to house electronic circuits for wirelessly receiving controlling commands via WiFi from a user through the use of a software application installed in a mobile device. In operation, the user unplug a light bulb from an existing lighting fixture and plugs the light bulb plug of the light bulb adapter into the lighting fixture. A light bulb is inserted to the light bulb receptacle of the light bulb adapter. The user can connect a mobile device to the light bulb adapter over a wireless local area network via an accessory protocol and control the light bulb adapter, and subsequently the light bulb connected to it, using the accessory protocol.

Abstract: A monitor device in a solar power generation system extracts a first time band indicating a minimum amount of solar radiation and a second time band indicating a maximum amount of solar radiation in a day, and calculates, using a ratio of operation and short-circuit currents in a solar battery array, an expected electric power value of a solar battery string to be inspected in each of the first and second time bands. From measurement electric power values of the solar battery string to be inspected in the time bands, the expected electric power value of the first time band, and the expected electric power value of the second time band, first and second electric power losses in the first and second time bands are calculated, and a failure in the solar battery string to be inspected is detected based on the first and second electric power losses.

Abstract: A parameter identification circuit for a digital power converter having an inductor and a capacitor, can include: an inductor parameter circuit that receives an inductor current of the inductor, a capacitor voltage of the capacitor, a duty cycle in a start-up stage, and a predetermined inductor current, where the inductor parameter circuit obtains an inductor parameter according to an integrated value of the capacitor voltage, an integrated value of the duty cycle in the start-up stage, and the predetermined inductor current, when the inductor current rises to a level of the predetermined inductor current; and a capacitor parameter circuit that receives the inductor current, the capacitor voltage, and a predetermined capacitor voltage, where the capacitor parameter circuit obtains a capacitor parameter according to an integrated value of the inductor current and the predetermined capacitor voltage when the capacitor voltage rises to a level of the predetermined capacitor voltage.

Abstract: A motor control device includes: a receiver module used to receive a remote control signal, and generating a remote control input signal in response to receipt of the remote control signal; and a control module used to receive an input voltage, used to be coupled to a pull switch device for receiving a pull switch input signal therefrom, coupled further to the receiver module for receiving the remote control input signal therefrom, and used to be coupled further to a variable frequency DC motor of a ceiling fan. Based on the input voltage, the pull switch input signal and the remote control input signal, the control module operates the motor by turning on/off the motor, or by adjusting a rotary speed of the motor when the same is turned on.

Abstract: There is provided a battery powered lighting system having illuminating units and a battery module with rechargeable batteries for providing electrical power to the illuminating units. A temperature sensor is arranged to measure a temperature of the battery pack. A charger and discharger are arranged to (dis)charge the battery module, where discharging means powering the illumination units. A control system is arranged to adjust a lighting profile using measurements received from the temperature sensor. The adjusted lighting profile will assures that the temperature of said battery module stays within a predefined temperature range, and in particular above a predefined temperature. This will extend the life time of the batteries.

Abstract: A self-checking emergency light unit includes a power input terminal coupleable to an external power supply for receiving power therefrom, an illumination circuit coupled to the power input terminal, a discharge circuit coupled to the emergency power source, and an operational check module coupled to the emergency power source.

Abstract: An apparatus for perpetually harvesting ambient near ultraviolet to far infrared radiation to provide continual power regardless of the environment, incorporating a system for the harvesting electronics governing power management, storage control, and output regulation. The harvesting electronics address issues of efficiently matching the voltage and current characteristics of the different harvested energy levels, low power consumption, and matching the power output demand. The device seeks to harvest the largely overlooked blackbody radiation through use of a thermal harvester, providing a continuous source of power, coupled with a solar harvester to provide increased power output.

Abstract: A feedforward voltage series compensator based on complimentary use of wind, solar, and electric power comprising a controller, a rectifier unit, an H bridge inverter, a series transformer, a wind-power DC voltage sensor, a wind-power DC current sensor, an AC voltage transducer, a DC boost unit, a PV DC voltage sensor, a PV DC current sensor, and a grid-connected inverter. The compensator makes use of wind-electric and photovoltaic-electric complimentary interactions to solve the traditional energy issue for series compensator, and as the grid-connected inverter is feedforward, there is extra capacity for the series transformer and the series complimentary inverter unit, and hence it enjoys the feedforward and quick voltage complimentary characteristics of the wind and solar power generation.

Abstract: A system for controlling power supply according to the present disclosure includes a controlled device, a waveform control circuitry and a power detection and control circuitry. A supply voltage is provided to the controlled device for supplying power and, at the same time is applied to the waveform control circuitry for changing its waveform so as to generate a control signal. The control signal is then received and analyzed by the power detection and control circuitry to output a control command, which is used to control the controlled device. Based on the system for controlling power supply, there is also provided a method for controlling power supply, which may be implemented by a smart dimming system to realize remote control of lighting-on, lighting-off, dimming and color temperature regulation.

Abstract: A detection unit determines whether a commercial power supply is in a power failure state or a power distribution state. A power source connection management unit controls whether a solar cell is to be connected to a first power conditioner connected to a storage battery or to be connected to the commercial power supply via a second power conditioner. A load connection controller controls connection of the first power conditioner, commercial power supply, and a load. When the commercial power supply is in a power distribution state, the power source connection management unit does not cause the solar cell to be connected to the first power conditioner but connected to the commercial power supply via the second power conditioner, and the load connection controller causes the first power conditioner and the commercial power supply to be connected to the load.

Abstract: A light bulb adapter is disclosed. The light bulb adapter has a main housing configured to house electronic circuits for wirelessly receiving controlling commands via WiFi from a user through the use of a software application installed in a mobile device. In operation, the user unplug a light bulb from an existing lighting fixture and plugs the light bulb plug of the light bulb adapter into the lighting fixture. A light bulb is inserted to the light bulb receptacle of the light bulb adapter. The user can connect a mobile device to the light bulb adapter over a wireless local area network via an accessory protocol and control the light bulb adapter, and subsequently the light bulb connected to it, using the accessory protocol.

Abstract: In a battery system for use in a vehicle as power supply, a plurality of battery groups, each configured to output a rated voltage while being charged, in parallel to an input/output system line by a system connection device, BMU devices monitor the battery groups, respectively, determining whether the battery groups enter an abnormal state, and any battery group entering the abnormal state is designated and disconnected from the input/output system line. If a predetermined of battery groups are found to enter an abnormal state, as determined by the BMU devices, a system controller generates an alarm, informing the user that the battery system may not provide power in the required amount.

Abstract: A method of controlling power to a device which consumes energy from an energy network. The network has a renewable energy generator and a mains supply connected thereto to supply energy to the network. The method includes determining energy requirements of the device, and determining a renewable energy component of the supplied energy generated by the renewable energy generator. The method compares the energy requirements of the device with the renewable energy component of the supplied energy, and controls the energy to the device in accordance with the comparison between the energy requirements of the device with the renewable energy component of the supplied energy.

Abstract: A solar power system includes at least one alternating-current module and a communication apparatus. Each alternating-current module includes a solar panel and an alternating-current inverter. The communication apparatus connects to the alternating-current module and controls stand-alone power-generating operations on the alternating-current module. The communication includes a module connector and a control circuit. The module connector is configured for connecting with the alternating-current module. The alternating-current module can be parallel-connected on a household power grid selectively. The communication apparatus can transmit a stand-alone power-generating command to the alternating-current module. The alternating-current inverter may cancel an anti-islanding protection procedure thereon according to the stand-alone power-generating command.

Abstract: An energy storage system and a method of controlling the same is provided. The energy storage system may directly provide generated DC power or DC power stored in a battery to a DC load without performing a DC/AC conversion or an AC/DC conversion. Furthermore, in the case where a grid operates abnormally (e.g. power interruption) and the energy storage system functions as an uninterruptible power supply (UPS), power stored in a battery may be selectively provided to loads according to power remaining in a battery, and thus stored power may be used stably.

Abstract: A solar power system configured for use in a retail environment comprising at least one solar panel, a charge controller, a battery, and various electrical and electronic devices operatively connected to a low-voltage power control and distribution system which may include a Tag Area Controller, a system controller, a low-voltage wire loop, and at least one inductively coupled connector. At least one electronic shelf label may be powered from the solar power system.

Abstract: The present invention relates to an electric generation plant (110) of the type without connection to an distributed electric supply network for generating an alternating electric current destined for a plurality of utilities (105) comprising: a first generator (101) fed with fuel of a fossil origin for generating a first alternating electric current in continuous service, i.e.

Abstract: An electrical power distribution system includes a dual mode electrical motor/generator, high voltage traction batteries, bi-directional direct current power transmission lines connectable between the dual mode electrical motor/generator and the high voltage traction batteries, first and second isolation contactors including magnetic blow out and connected into the power transmission lines to exhibit opposed polarity and an electrical system controller. In order to deenergize the electrical power distribution system the polarity of current on the bi-directional transmission lines is determined. Once the polarity has been determined the isolation contactor of corresponding polarity is selected to be opened.

Abstract: A system to collect energy from generation systems such as, for example, wind farms or solar farms with distributed energy-generation equipment. The energy is collected and transmitted to a feed-in site. At the feed-in site, static inverters alone or in combination with pulse width modulation inverters may be used to feed the energy to a power grid. In some other cases, back-to-back static inverters create a high-voltage direct current to feed a transmission line.

Abstract: The fuel cell system includes: a power generation unit; an obtaining unit obtaining battery information indicating a storage state of a storage battery; and a control unit selecting one of a first control mode and a second control mode based on the battery information when load power changes from a first load power to a second load power, the first control mode being for supplying power from the power generation unit to the load by causing the power generation unit to generate power without causing the storage battery to charge and/or discharge, the second control mode being for causing the power generation unit to generate power with a change rate of generation power being set to a value smaller than a value in the first control mode, by causing the storage battery to charge and/or discharge.

Abstract: A power supply system used in an electronic device includes a light absorption device, exposed to a backlight source of the electronic device, for absorbing backlight irradiated by the backlight source; an energy conversion circuit, coupled to the light absorption device, for converting the backlight irradiated by the backlight source into electrical power; and a power storage device, coupled to the energy conversion circuit, for storing the electrical power of the energy conversion circuit.

Abstract: A router module is arranged in a housing of a smart television. The router module is externally connected to a modem for surfing the Internet. The router module is electrically connected to a micro processing unit of the smart television. Therefore, the smart television is connected to the Internet through the router module. A wireless transmission chip of the router module is configured to process Internet signals. An antenna module is configured to wirelessly transmit the Internet signals, so that wireless network is shared to outside.

Abstract: Systems and methods (“utility”) are provided for reducing the no-load (standby) power of power devices such as chargers for electronic devices and power converters for electronic devices. The utility may include a controllable switch that is operative to decouple circuitry of the power device from a power source under certain no-load conditions. In one embodiment, the utility provides a switch control module that is operative to sense when an electronic device is coupled to the power device, and in response, to control the switch to couple the power device to the power source. The switch control module may also be operative to detect a condition when the electronic device is no longer drawing power from the power device, and in response, to control the switch to decouple the power device from the power source.

Abstract: Examples disclose a networking device comprising a thermopile to convert a temperature difference between a heat surface and an ambient surface into electrical power. Additionally, the examples disclose a power management module to power the networking device with the converted electrical power.

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 mobile system includes a mobile cart and an electronic device supported by the mobile cart. The mobile cart includes integral power storage structures that store electrical energy. The mobile cart also includes power supply electronics configured to supply the electrical energy to the electronic device to power the electronic device.

Abstract: Energy harvesting devices provide power to devices of emergency equipment stations (e.g., fire extinguisher station, fire alarm pull station, defibrillator station, etc.) distributed throughout a facility to monitor one or more internal or external conditions (e.g., identifiable objects detected near the station, presence of an obstruction restricting access to the station, etc.) and relay information about the monitored conditions to a central station.

Abstract: A low standby consumption power supply system having multi-channels for power supply is used to power first and second circuit blocks. The main supply module provides power to the first circuit-block, while the second supply module provides power to the second circuit-block. The enabling line is used to transmit an enabling signal to the main supply module to switch the main supply module from a power-off status to a power-on status. The enabling line operates under enabling mode and power-off mode. Under enabling mode, the enabling line transmit the enabling signal to the main supply module, such that the main supply module and the low-current supply module respectively provide power to the first circuit-block and the second circuit-block simultaneously. Under the power-off mode, the enabling signal is cut off and the main supply module stop providing power, so as to cut off standby current of the main supply module.

Abstract: According to a preferred embodiment of the invention, the system for managing a power system with a plurality of power components that includes power source components and power consumption components includes a central power bus, a plurality of adaptable connectors that each electrically couple to a power component and to the central power bus, and a control processor that receives the state of each power component from the respective adaptable connector and is configured to balance the voltage and current output from each power source component to provide a desired power to a power consumption component based on the received states.

Abstract: The supply of an electric equipment material (5), such as a telecommunications station, is implemented in priority by an intermittent power source (6), and makes use as much as possible of batteries (31) and as little use as possible of a fuel cell electrochemical generating unit (4) for increasing the life of the latter. The equipment and the generating unit are supplied by the source so as to produce and stock fuel in the generating unit when the power of the source exceeds the operation power of the equipment and the batteries are in full charge. Destocking the fuel in the generating unit, supplying the equipment by the generating unit and charging the batteries by the generating unit are carried out as soon as the power of the batteries is at a discharge threshold and until the batteries reach the full charge.

Abstract: The power supply and cooling provided by existing aircraft system line replaceable units (LRUs) or other devices supports new cards that are installed in previously empty slots or which replace existing original cards and which are not limited in functionality and do not require licensing of any proprietary technology included in the LRU. These new cards can include components such as processors, memory, and/or storage that significantly improve the performance of the LRU, and/or add new functionality—all without exceeding the power supply and cooling capability of the LRU. A network and avionics bus interface can be added to a portion of the new card and electrically coupled to the circuitry and electronic components on the new card, so that one or more cables connected to the interface can be connected to externally accessible standard avionics buses and network connectors added to a chassis of the LRU.

Abstract: Provided are a power storage apparatus and a method of controlling the power storage apparatus. The power storage apparatus stores power supplied from a power generation system or a power grid. The power storage apparatus supplies stored power to a load during an electric failure, and supplies stored power to the power grid. The power storage apparatus includes at least one battery cell, a battery management unit coupled to the battery cell, a bi-directional converter coupled to the battery management unit, a bi-directional inverter coupled between the bi-directional converter and the power grid, and a central controller controlling the operations of the bi-directional converter, the bi-directional inverter, and the battery management unit. An uninterruptible power supply (UPS) function may be performed to stabilize the power storage system including the power storage apparatus.

Abstract: Advances in the arts are disclosed with novel methods and circuit systems for controlling power in an energy harvesting system. Techniques and related systems for controlling power output of an energy harvesting device provide for monitoring at least one power parameter at a power source and monitoring at least one power parameter at a load such as a storage medium. The power source output is adjusted in order to optimize energy harvesting and/or storage based on real-time performance parameters.

Abstract: A current control device is a current control device which supplies current to a load device by controlling a current source including a first electric appliance and a voltage source including a second electric appliance. The current control device includes: an obtaining unit which obtains information indicating non-linear components included in load current that is current supplied to the load device; a determining unit which determines a first current that includes the non-linear components; and a notifying unit which notifies the current source of a command value for causing the current source to output the first current to cause the current source to output the first current.

Abstract: A method of dynamic power management of a mobile device. The method includes monitoring at least one load to determine when at least one of the loads will become active or inactive, determining a minimum required output voltage level to be provided by a single voltage converter based on voltage level requirements of the at least one load that will become active or inactive, converting an input voltage level via the voltage converter to provide the minimum required output voltage level to the output power port in advance of the at least one load becoming active or after the at least one load becomes inactive, monitoring the input voltage level, determining whether the input voltage level is below a first threshold, and when the input voltage level is below the first threshold, reducing the output voltage level provided by the single voltage converter.

Abstract: The present invention relates to a method of managing the consumption and distribution of electricity in a user facility, wherein the user facility is connected to an electricity supply grid and the user facility comprises a grid connected on site generator; the method comprising the steps of measuring waveform conditions on a portion of the electricity supply grid adjacent the user facility to obtain locally measured waveform conditions; measuring electrical power readings from the on site generator; communicating the locally measured waveform conditions and the electrical power readings to a controller in the user facility; determining, at least on the basis of the locally measured waveform conditions, whether the electricity supply grid is oversupplied or undersupplied with electricity; and, modifying the flow of the electricity within the user facility based on whether the electricity supply grid is oversupplied or undersupplied with electricity and/or the electrical power readings from the grid connected

Abstract: Disclosed is a system and method for improving grid efficiency, reliability, security and capacity, utilizing energy storage over a plurality of on-site energy storing appliances, and also utilizing on-site demand reduction devices lacking storage, all controlled via configuration settings with a local means to act independently, yet in statistical coordination, to provide a desired effect. The appliance and controller are located on the downstream side of the end-users power meter, and facilitates the utilization of the stored energy and manages the optimal timing for producing and delivering the stored energy to the end-user. This model demonstrates a utility driven, disaggregated, distributed energy system, where the distributed energy resource is designed to behave as an offset to the predictable daily electrical demand profile.

Abstract: An energy storage means for a drilling rig has a source of power, an AC bus connected to the source of power, a DC bus, a load connected to the DC bus, a rectifier connected to the AC bus and to the DC bus for converting AC power from the source of power to DC power to the load, and an energy storage system connected to the DC bus. The energy storage system can be batteries, capacitors or combinations thereof. A diode is connected between the energy storage means and the DC bus so as to supply power to the load when the DC voltage is less than a DC source voltage. The energy storage system has a nominal voltage slightly lower than a voltage of a AC-to-DC conversion by the rectifier.