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8164220 |
Apparatus, system and method for a UPS
According to one aspect of the invention, a UPS includes an input configured to be coupled to an AC power source, a DC power source, an output configured to receive power from at least one of the...
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8159088 |
Display device and portable terminal
In order to increase the continuous operating time of a display device driven by a battery or the like, and a portable information terminal using the same, the volume and weight of the battery are...
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8159087 |
Power generation system and operation method thereof
The invention provides a power generation system having a power generator (1) configured to generate DC power; an electric power load (5); a current detector configured to detect a current flowing...
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8148844 |
Power supply system including alternative sources
A power supply system for a residential or a commercial unit is disclosed. The system comprises an AC power source from a power grid, a DC power source from one or a plurality of remote alternative...
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8148855 |
Portable power supply system
A method and apparatus for supplying cordless power to a remotely-located load device. A first power supply unit of a portable power supply system is configured to operate in a charge receive mode...
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8138630 |
Solar powered system with grid backup
A system includes a solar power subsystem that receives power from one or more solar power arrays. A storage control subsystem is coupled to the solar power subsystem to charge a battery from the...
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8138634 |
Transfer switch with arc suppression
An automatic transfer switch for a power system receiving multiple alternating current sources and delivering multiple alternating current output is described. A transfer switch control circuit can...
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8110947 |
Uninterruptible power supply watchdog system and auto recovery method using the system
According to the present invention, provided is a watchdog system for Uninterruptible Power Supply (UPS), and auto recovery method using the same. In case the power supply path of UPS is switched...
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8093749 |
Sharing redundant power supply modules among physical systems
A system may include a switchover element configurable to source or sink power from or to an electronic device electrically coupled to the switchover element and a controller in communication with...
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8076799 |
UPS system having a function of parallel operation
A UPS system includes one or more UPS units with identical or different capacities. A control circuit, used to control a DC/AC inverter of the UPS unit, includes a voltage feedback control circuit...
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8046594 |
Electronic device and electronic device system
An electronic device includes electronic components, including: a power switching unit to output a power switching signal; a first power input unit to receive first power from one of a plurality of...
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8039990 |
DC UPS configured as intrinsic power transfer switch
Methods of manufacturing a direct current (DC) uninterruptible power supply (UPS) configured as an intrinsic power transfer switch are provided. One method includes providing multiple inputs,...
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8035250 |
System and method for load sharing in multi-module power supply systems
A load sharing, multi-module power supply system for supplying power to a load. The system may involve: a first power supply module having a controller, and having a first per unit capacity (pu-c);...
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8018091 |
Power-mode selectable backup power supply
A selectable backup power supply device for providing power to a real time clock (RTC) and a memory unit is disclosed. The device includes a backup battery, a first power outputting unit and a...
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8006132 |
Storage subsystem and power supply system
The present invention includes a plurality of disk units for storing data from a host computer, a plurality of power supply apparatuses for supplying DC power to each of the disk units via main...
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7999410 |
System for high reliability power distribution within an electronics equipment cabinet
The power conversion system allows for multiple segregated and ground independent power sources to provide redundant power to modules within an electronics equipment cabinet with increased...
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7982331 |
Transfer switch assembly
A transfer switch assembly is disclosed that includes a power switch device with a number engagement landings and a printed circuit board defining an opening bordered by a number of tabs. The tabs...
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7939967 |
Multiple power supply control
Apparatus and methods are provided. A system includes two or more power supplies receiving electrical energy from respective independent sources. One of the power supplies detects an anomalous...
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7932637 |
Control of small distributed energy resources
A method includes operating a microsource in a grid mode in which the microsource is connected to a utility grid. The microsource is located in a microgrid and is configured to deliver a power P1...
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7933689 |
Method for controlling at least one load connected to a primary and a backup power supply
A method for controlling at least one load connected to a primary and a backup power supply having sensor for sensing a voltage on the primary power supply with a first voltage sensor; sensor for...
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7915760 |
Electric power conservation system for storing electric power for use during off-peak hours
An electric power conservation system to be used between an AC utility power source and a load circuit in a home or business. The electric power conservation system comprises an energy charger...
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7911084 |
Parasitic power supply for traffic control systems
A parasitic power supply provides for drawing power for an auxiliary device from a set of sequentially driven loads. A typical source of power is a traffic signal wherein the power may be...
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7898106 |
DC UPS configured as intrinsic power transfer switch
A direct current (DC) uninterruptible power supply (UPS) configured as an intrinsic power transfer switch is provided. The DC UPS includes first and second inputs. First and second rectifiers are...
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7898109 |
Switching power supply controller with built-in supply switching
The invention provides a switching converter comprising as few as two high-side switching transistors and a low-side rectifying device, along with a control circuit. The switching converter is...
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7888820 |
Delocalized intrastructure power grid and devices
The present invention relates to a delocalized power generation system with computer controls and storage optimization capacity. A plurality of power generating systems is linked to a building...
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7888819 |
Multi-input power converter and uninterruptible power supply having the same
An uninterruptible power supply has first and second input terminals, first and second inductors, first and second AC switch units, first and second storing devices and a control unit. The first...
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7875995 |
Power system for a device
A power system is designed for providing reliable electrical power to a facility and/or associated devices. The system includes one or more fuel cells and a circuit adapted to receive power from...
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7868484 |
Worldwide adaptive multi-coil automatic transfer switch
A multi-coil automatic transfer switch (ATS) adapted for automatically switching an appropriately rated component to render the ATS operational over a worldwide voltage range is provided. A low...
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7863774 |
Multi-output power supply
A multi-output power supply includes a standby power system and a main power system. The main power system has a transformer and a rectification output circuit connecting to the transformer to...
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7859133 |
Portable apparatus of emergency power supply and battery charger
The present invention relates to a portable apparatus combining a battery charger with an emergency power supply, including: a hand-held body; an AC input section, a battery section; a DC output...
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7855472 |
Method and apparatus for providing uninterruptible power
Methods and apparatus for providing uninterruptible power are provided by aspects of the invention. One aspect is more particularly directed to an uninterruptible power supply for providing power...
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7847434 |
Cogeneration system
A cogeneration system comprising a generator connected to an AC power feed line between a power network and an electrical load and an internal combustion engine for driving the generator and for...
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7843166 |
Alternating-current power supply device recovering magnetic energy
The present invention relates to an alternating-current power supply device which can improve a power factor of an alternating-current load, realizes low cost and miniaturization, and recovers...
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7843083 |
Backup power system equipped with independent protection circuit architecture
The present invention includes plural power supplying units, a power distributing backplane and more than one protection circuits, wherein the power supplying unit produces an output power and the...
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7839020 |
Electric power supply system
An electric power supply system which, in the event of a power failure, is capable of efficiently supplying electric power to household electric appliances in cooperation of a vehicle, including a...
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7830038 |
Single chip solution for solar-based systems
In one embodiment there is provided a power management system for managing the power from solar panels and rechargeable batteries to power a system that includes DC loads and AC loads. The power...
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7830039 |
Systems and circuits with multirange and localized detection of valid power
Methods and systems for automatically and/or locally adjusting power-valid detection. In one class of embodiments, local power-on-reset circuits are included in individual power islands; in another...
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7821159 |
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...
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7812480 |
Apparatus and method for on-line power source replacement in wireless transmitters and other devices
A method includes powering a device using one or more first power sources and coupling one or more second power sources to provide power to the device. The method also includes replacing at least...
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7800248 |
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 and with a network monitoring device with a switch topology including a...
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7786618 |
Apparatus, system and method for a UPS
According to one aspect of the invention, a UPS includes an input configured to be coupled to an AC power source, a DC power source, an output configured to receive power from at least one of the...
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7786703 |
Electronic device, battery pack, and electronic device system
An electronic device which is capable of performing high-accuracy remaining battery capacity management. The electronic device has a plurality of battery pack compartments assigned specific...
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7781914 |
Input and output power modules configured to provide selective power to an uninterruptible power supply
An uninterruptible power supply (“UPS”) includes an input module having a plurality of inputs, and at least one jumper element configured to selectively couple at least one input of the plu...
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7737580 |
Method and apparatus for providing uninterruptible power
Methods and apparatus for providing uninterruptible power are provided by aspects of the invention. One aspect is more particularly directed to an uninterruptible power supply for providing power...
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7714462 |
Composite backup-type power supply system
A composite backup-type power supply system can be configured and assembled to become a small backup-type power supply system or a large backup-type power supply system according to actual...
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7696642 |
Cogeneration system
In a cogeneration system having a generator unit that generates DC power, an internal combustion engine for driving the generator unit, a battery that stores DC power for starting the engine, and...
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7668624 |
Maximized battery run-time in a parallel UPS system
An uninterruptible power supply (UPS) includes a plurality of UPS modules. Each of the UPS modules has a battery that provides power to a protected load in the event of a utility power failure. A...
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7663266 |
Modular DC-DC standby voltage converter having programmable sequencing
An information handling system having a modular DC-DC standby power converter with programmable sequencing. The modular DC-DC standby power converter comprises a plurality of DC inputs and a...
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7656056 |
Method and device for stabilizing an on-board electrical system of a vehicle electrical system
A vehicle electrical system includes at least one battery, at least one fan and a device for detecting a critical state in the vehicle electrical system. The fan is activated when a critical state...
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7652944 |
Semiconductor device for reducing soft error rate with reduced power consumption
A semiconductor device is composed of a first circuit receiving a first power supply voltage; and a second circuit receiving a second power supply voltage. The second power supply voltage is higher...
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