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US20130082530 RENEWABLE ENERGY GENERATION SYSTEM  
A renewable energy generation system is provided, including at least one renewable energy generator, at least one micro-inverter and an uninterruptible power supply. The renewable energy generator...
US20110298287 PORTABLE TRANSFORMER AND METHOD FOR IMPROVING RELIABILITY OF ELECTRIC POWER DELIVERY  
The present invention relates to an apparatus and method for improving the transportation and installation of portable step-up power transformers for a power generating station due to failure or...
US20150015073 POWER SUPPLY CIRCUIT  
A power supply circuit includes a connector, a first power supply module, and a second power supply module. The first power supply module is connected to, and supplies power to, the connector. The...
US20150076912 AUTO-SWITCHING DUPLEX MODULE  
A system and method (“utility”) for providing power to an electrically powered device from alternate, redundant power sources via a single power cord. The utility is operable to provide redundant...
US20120126620 METHOD OF SUPPLYING POWER VENT/DIRECT VENT WATER HEATER BACKUP POWER WHEN THE MAIN POWER IS OFF AND THE BACKUP POWER SUPPLY SYSTEM THEREOF  
A backup power supply system of a water heater includes a power transforming device and a controller. The power transforming device generates a DC current with an initial voltage through sensing...
US20120139344 INRUSH CURRENT PROTECTION FOR WIND TURBINES AND WIND FARMS  
A wind turbine is provided. The wind turbine includes a transformer having a low-voltage side and a high-voltage side. The transformer is configured to step up a voltage of the low-voltage side of...
US20130154370 POWER MANAGEMENT SYSTEM THAT INCLUDES A GENERATOR CONTROLLER WHICH SELECTIVELY ACTIVATES A TRANSFER SWITCH  
A power management system may include a generator controller. The generator controller may (i) operate the generator; and (ii) prohibit a transfer switch from supplying first or second power to an...
US20150171662 ACTIVE ENGINE COOL DOWN TIME DELAY FOR AUTOMATIC TRANSFER SWITCH CONTROLLERS  
A system for providing backup power to a facility includes a generator and a controller. The controller is configured to operate the generator until a condition is met, determine a load history...
US20140070616 POWER CONVERSION OUTPUT ARCHITECTURE  
A power conversion output architecture applied to a redundant power supply system comprises a power integration panel and a power regulation output panel. The power integration panel includes a...
US20150222145 POWERING A SELF-SERVICE TERMINAL  
The present invention provides a method and apparatus for powering a Self Service Terminal (SST), comprising a primary power supply, a back-up power supply, at least one renewable power supply,...
US20120319477 LIGHTING SYSTEM  
Lighting system utilizing electricity from energy storage and/or alternative energy source during peak usage times to power a load. In one instance, a series of batteries are configured to provide...
US20130162044 Low Power Implementation to Allow for High Potential Rails to Come Up in Any Order  
A low power biasing circuit for powering up split-rail electronic circuits includes an intermediate voltage generator at each pad which is supplied by a temporary supply voltage to generate a...
US20120133207 Distributed Solar Power Plant And A Method Of Its Connection To The Existing Power Grid  
Methods and apparatus are provided for using a renewable source of energy such as solar, wind, or geothermal energy. In some embodiments, the method may include generating electric energy from a...
US20130119766 METHOD FOR CONTROLLING UNINTERRUPTIBLE AND PARALLEL POWER MODULES  
A method for controlling uninterruptible and parallel power modules has steps of parallelly and unloadably connecting multiple power modules to a load, acquiring a number and a load wattage of the...
US20130154375 Solar Home Electrification With Grid Connection  
A means of providing solar powered electricity for day and nighttime use supported in part by power from the grid to allow a small generator to electrify the home or business with a small...
US20130234520 MODULAR ENERGY PORTAL WITH AC ARCHITECTURE FOR HARVESTING ENERGY FROM ELECTRICAL POWER SOURCES  
A modular energy harvesting portal including a housing with a bay, a plurality of inverters, a controller, and an AC bus. A first inverter has a first DC input, a first AC output, and a first...
US20150200567 REDUNDANT POWER SUPPLY SYSTEM FOR REDUCING STANDBY POWER CONSUMPTION  
A redundant power supply system for reducing standby power consumption includes a plurality of power supply modules and a power integration backboard. Each power supply module includes a first...
US20120189392 POWER SUPPLY DEVICE FOR AN ELECTROMAGNETIC BASE OF A DRILL, PARTICULARLY OF AN ELECTRIC DRILL  
A power supply device for an electromagnetic base of a drill, particularly of an electric drill, used primarily for steel structure drilling including a drill controller. The drill controller (S)...
US20120261992 Renewable Energy Power Controller  
A system to provide power to a load from a renewable power source and an energy storage device, comprises input and isolation circuits for receiving power from renewable energy sources and to...
US20130214597 ELECTRICAL POWER DISTRIBUTION SYSTEM  
A distributed electrical power system includes a first AC generator configured for supplying an AC voltage; a second AC generator configured for supplying the AC electrical voltage; an AC power...
US20110109160 VOLTAGE MONITORING CIRCUIT FOR REDUNDANT POWER SYSTEMS  
A redundant power system determines a rate of decline of a voltage supplied by a remote power source. The redundant power system further supplies power from a redundant power source to the remote...
US20140203649 Method and Apparatus for Integrating a Secondary Power Source into a Power Generation Plant  
A plant secondary power source consists of an auxiliary power source, an auxiliary converter, and a connection to a power generation plant DC voltage link. The auxiliary power source provides...
US20100067267 CONTROLLER AND METHOD FOR CONTROLLING CONVERTERS OF DISPARATE TYPE  
A converter controller and a method of controlling converters. In one embodiment, the converter controller includes: (1) a converter efficiency database configured to store data pertaining to...
US20140001861 CMOS POWER BACKUP SWITCHING CIRCUIT AND METHOD FOR OEPRATING A CMOS POWER BACKUP SWITCHING CIRCUIT  
A Complementary Metal Oxide Semiconductor (CMOS) power switching circuit and a method for operating a CMOS power switching circuit are described. In one embodiment, a CMOS power switching circuit...
US20120256492 Passive RF Energy Harvesting Scheme For Wireless Sensor  
A radio frequency energy harvester harvests RF energy from the environment. The energy harvester may include a local power source. The energy harvester may have an associated crystal radio antenna...
US20130113289 TRANSPORT REFRIGERATION UNIT WITH AUXILIARY POWER CIRCUIT AND INTERLOCK  
A pre-wired auxiliary power circuit (45, 47) is built into a transport refrigeration system for supplying electrical power to an optional auxiliary system when installed in connection with the...
US20110215644 SUPERCAPACITOR BACKUP POWER SUPPLY WITH BI-DIRECTIONAL POWER FLOW  
A system for providing backup power supply to a device is provided. The system includes a supercapacitor and a single circuit for charging and discharging of a supercapacitor. The single circuit...
US20140035375 REDUCING POWER LOSSES IN A REDUNDANT POWER SUPPLY SYSTEM  
A power supply system includes at least a first power supply module and at least one redundant power supply module. The at least one power supply module supplies power to an output terminal. The...
US20140028100 REDUCING POWER LOSSES IN A REDUNDANT POWER SUPPLY SYSTEM  
A power supply system includes at least a first power supply module and at least one redundant power supply module. The at least one power supply module supplies power to an output terminal. The...
US20120205981 UTILIZATION OF DISTRIBUTED GENERATOR INVERTERS AS STATCOM  
The invention provides a method and system for operating a solar farm inverter as a Flexible AC Transmission System (FACTS) device—a STATCOM—for voltage control. The solar farm inverter can...
US20110291482 VBUS POWER SWITCH  
This document discusses, among other things, an electronic circuit and method for defaulting to a valid battery supply to power an electronic device. In an example, an electronic circuit can be...
US20140292086 Dual Supply Override  
A monolithically integrated circuit with one or more supply overrides without need of an override control pin to the IC is presented. The internal circuitry to control such an override is...
US20130140898 Arrangement for an uninterruptible power supply  
The invention relates to an arrangement for an uninterruptible power supply with a rectifier, an energy store, an inverter, a switching means and a controller. The rectifier is connected to a...
US20110049992 SYSTEMS, METHODS, AND DEVICES INCLUDING MODULAR, FIXED AND TRANSPORTABLE STRUCTURES INCORPORATING SOLAR AND WIND GENERATION TECHNOLOGIES FOR PRODUCTION OF ELECTRICITY  
Disclosed are systems, methods, and devices related to fixed and transportable structures and vehicles utilizing the integration of solar and wind technologies for generation of electricity. The...
US20080203820 Backup power system  
The subject matter of the invention is a backup power system configured to be a UPS system, with a customer generation system (5) and with a network monitoring device with a switch topology a....
US20130257158 Method for transmission and storage of wind energy  
A method of transportation and storage of wind energy, comprising receiving wind energy from a wind turbine in the form of compressed gas, storing of at least a portion of the compressed gas in a...
US20130140897 Arrangement for an uninterruptible power supply  
An arrangement for uninterruptible power supply with a rectifier, an energy store, an inverter with an input, a switch and a controller. The rectifier is connected to a rectifier input to a supply...
US20090206668 UNINTERRUPTIBLE COOLING SYSTEM AND APPARATUS  
A cooling system and power control apparatus provides an uninterruptible power supply. In one embodiment, the uninterruptible power supply provides power to an air conditioning system for cooling...
US20130234519 POWER ASSIST USING AMBIENT HEAT  
An energy boost circuit adapted to provide power to a load is described. The circuit includes a pair of thermoelectric generators (TEGs) for converting thermal energy from a heat source into...
US20130293016 CONTROL METHOD FOR FUEL CELL POWER  
A power controlling method for a power supplying system coupled to a load is disclosed. City energy is detected. It is determined whether the city energy corresponds to a first pre-determined...
US20130264879 LOW POWER CONSUMPTION BACKUP POWER SYSTEM  
A low power consumption backup power system includes a power conversion unit connected to an external power input source to generate a converted power, a first power supply circuit and a second...
US20100013310 Metering pump power source  
A power supply system includes an energy generator and an energy storage system, each electrically connected to a power bus. The power bus provides electrical power to a load. The energy generator...
US20130002027 UNINTERRUPTIBLE POWER SUPPLY  
An uninterruptible power supply includes an input and an output. The uninterruptible power supply may include a first power path between the input and the output. The uninterruptible power supply...
US20130038128 ELECTRONIC CIRCUIT AND MOBILE TERMINAL DEVICE USING THE SAME  
An electronic circuit includes a first digital circuit, a second digital circuit, a first detection part to detect a first voltage value which is an operation voltage of the first digital circuit,...
US20120091810 AUTOMATIC SYSTEM FOR SYNCHRONOUS ENABLEMENT-DISABLEMENT OF SOLAR PHOTOVOLTAIC PANELS OF AN ENERGY PRODUCTION PLANT WITH DISTRIBUTED DC/DC CONVERSION  
A solar energy plant may include a DC bus, photovoltaic panels coupled in parallel to the DC bus, each photovoltaic panel having a DC/DC converter, and a first controller controlling the DC/DC...
US20130057073 METHODS AND APPARATUS FOR PROVIDING UNINTERRUPTIBLE POWER  
Power supply systems and methods are provided. In one aspect, a power supply system includes a frame, a power input to receive input power from a power source, a power output to provide output...
US20100073871 EFFICIENT SITE COOLING TECHNOLOGY  
A method for providing Electronic Equipment cabinets and shelters with an advanced supplemental cooling system, with the use of “stored coolant” produced during off peak periods as opposed to the...
US20090058186 PORTABLE GENERATOR INTERCONNECTION DEVICE FOR TRAFFIC SIGNAL  
When utility power has been lost at a controlled traffic intersection, an emergency interconnection circuit having no internal power of its own provides emergency electrical power to the traffic...
US20150200566 REDUNDANT POWER SUPPLY SYSTEM FOR REDUCING STANDBY POWER CONSUMPTION  
A redundant power supply system for reducing standby power consumption includes a plurality of power supply modules and a power integration backboard. Each of the power supply modules includes an...
US20140361623 AUXILIARY POWER SUPPLY FOR LIGHTING DRIVER CIRCUITRY  
Techniques for supplying auxiliary power to lighting driver circuitry are disclosed. An auxiliary power supply can be used, for example, to provide auxiliary power to a current source that drives...

Matches 1 - 50 out of 419 1 2 3 4 5 6 7 8 9 >