Uninterruptible power supply watchdog system and auto recovery method using the system

Methods and apparatus using hierarchical priority and control algorithms for grid-integrated vehicles

Substation based high voltage uninterruptible power supply

UNINTERRUPTIBLE COOLING SYSTEM AND APPARATUS

Backup power system and method

Systems and methods for uninterruptible power supply control

Automatic battery reconnection

No drain power saver

Uninterruptible power supply module

Uninterrupted power supply with IR control link

Power saving uninterruptible power supply

Solar power supplying device

On-line uninterruptible power system

UPS system having a function of parallel operation

Natural Energy Power Supplying Apparatus

Pulse-width modulation rectifier having an emergency generator operating mode

Systems for and methods of controlling operation of a UPS

Battery load allocation in parallel-connected uninterruptible power supply systems

Uninterruptible power system (UPS) with improved manual user interface having a touch screen with main tabs separating pages, sub-menus identifying sub-pages related to certain main tabs, and links to pages or sub-pages

Uninterruptible Power Supply With Additional Feeding

Uninterruptible power supply unit

Portable generator interconnection device for traffic signal

Integrated uninterrupted power supply unit

Input and output power modules configured to provide selective power to an uninterruptible power supply

Adjustable battery charger for UPS

Redundant isolation and bypass of critical power equipment

UNINTERRUPTED POWER SUPPLY CIRCUIT

Alternative-source energy management

On-vehicle power supply device

Uninterruptible power supply, connected to a grid

Power systems and methods using an uniterruptible power supply to transition to generator-powered operation

Direct-coupled IT load

Battery communication system

Uninterruptible power supply and method for implementing said power supply

HIGH EFFICIENCY ALTERNATIVE/RENEWABLE POWERED UPS SYSTEM

Self-testing power supply apparatus, methods and computer program products

Method for pulse width modulation synchronization in a parallel UPS system

Power unit

Uninterruptible power supply and method for controlling same

SYSTEM FOR WIRELESS ALARM REPORTING

Hybrid green uninterruptible power system and bi-directional converter module and power conversion method thereof

Uninterruptible power storage device

ELECTRICAL POWER CONVERSION SYSTEM FOR COMMERCIAL AND RESIDENTIAL APPLICATIONS

Clean input UPS with fast rectifier control and improved battery life

RENEWABLE ENERGY POWER SYSTEMS

UNINTERRUPTIBLE POWER SUPPLY CONTROLLER AND METHOD

Parallel-connected uninterruptible power supply system

Backup power system

3-phase high power UPS

Cogeneration system

Cogeneration system with first and second power plants

UPS having solar powered battery charger

Barrier operator with safety lighting

AC power supplying system, power supply apparatus, and vehicle having the same

Method and apparatus for cycle error correction for a power converter device, such as an electronic power inverter

Power conditioner and backup for security scanning equipment

Modular uninterruptible power supply with loadsharing between modules

Methods and apparatus for providing uninterruptible power

Power converting apparatus

Power distribution device of power storage apparatus

Current sensor apparatus and method for uninterruptible power supply

Power supply apparatus, methods and computer program products using D-Q domain based synchronization techniques

Power system fault characterization using transformed values

Activation current for DC motor having brake and emergency operation supply unit

Device for controlling single-phase power conditioner for renewable energy system

Dynamically configurable voltage regulator for integrated circuits

Power storage device

Integrated closed loop control method and apparatus for combined uninterruptible power supply and generator system

EMERGENCY SOLAR POWER SUPPLY

Electric-Power Supply System, And Vehicle

Apparatus and method for employing a DC source with an uninterruptible power supply

Bidirectional active power conditioner with DC/AC inverter in low-frequency switching

Method and apparatus for providing uninterruptible power

Electric power distribution and backup power supply system

Uninterruptible power supply

Household self-contained power supply

Uninterruptible power supply with low leakage current

METHOD OF CONTROLLING AN UNINTERRUPTIBLE POWER SUPPLY APPARATUS

Uninterruptible power supply controller and method

Retrofittable power distribution system for a household

Retrofittable power distribution system for a household

Retrofittable power distribution system for a household

Dual input, hot swappable dual redundant, enhanced N‘AC to DC power system

Harmonics attenuator using combination feedback controller

Uninterruptible power supply with low power loss

Fuel cell power generation system

Low power loss uninterruptible power supply

Apparatus for and methods of polyphase power conversion

POWER GENERATION SYSTEM AND METHOD

Backup power system for electrical appliances

System and method for power load management

Uninterruptible power distribution systems and methods using distributed power distribution units

UPS systems having multiple operation modes and methods of operating same

Monitored voltage inverter for security system

Nested redundant uninterruptible power supply apparatus and methods

Uninterruptible power supply, uninterruptible power supply system and shutdown processing program product

Battery communication system

Consumer-sited power management system and method

Method and apparatus for medical covering group processing, review, and management

Power supply apparatus

Bi-directional energy conversion system

Uninterruptible power supply

Back-up power system for a cooling system

Using a variable frequency drive for non-motor loads

Ride-through method and system for HVAC&R chillers

Pitch control battery backup methods and system

Power system with fuel cell and localized air-conditioning for computing equipment

Ruggedized tradesworkers radio

Topologies for using multiple energy sources for power conversions

Actuating drive and emergency energy supply device

Systems and methods for providing backup energy to a load

Methods, circuits, and computer program products for assigning identifiers to modules in uninterruptible power supply systems

Maximized battery run-time in a parallel UPS system

Fast acting distributed power system for transmission and distribution system load using energy storage units

Method and apparatus for monitoring UPS power sources

Hybrid uninterruptible power supply system

Uninterruptible power source for a barrier operator and related methods

Method and apparatus for providing uninterruptible power

DC and AC uninterruptible power supply

Electronic device having path of power supplied to display part switched according to whether external power is supplied

Power supply arrangement

Power conditioner and backup for security scanning equipment

Apparatus and methods for coordinated static switch operations for load transfers in uninterruptible power supply systems

Control system, method and product for uninterruptible power supply

Continuous power supply control system and method

Converting device with power factor correcting and dc/dc converting functions

Combination feedback controller and power regulator using same

Uninterrupted power supply with IR control link

Protection circuit enabling a load to withstand a transient power supply failure

Power conversion and voltage sag correction with regenerative loads

Power unit

Control method for voltage boosting circuit

Renewable energy power systems

Method and system for providing auxiliary power for anesthesia delivery and patient monitoring

UPS having a dual-use boost converter

Uninterruptible power supply for the backup of AC-power supply

Apparatus for synchronizing uninterruptible power supplies

Control system, method and product for uninterruptible power supply

Fuel saving engine driven aircraft ground power device and method of use

Modular AC power supply system with fault bypass and method of switching output modes

Stand-by power generator monitoring system

AC power backfeed protection based on voltage

Uninterruptible power supply apparatus

Methods and apparatus providing double conversion/series-parallel hybrid operation in uninterruptible power supplies

Ruggedized tradesworkers radio

Uninterruptible power supply facility

Push-pull device using in output of uninterruptible power system

Charging circuit applicable to uninterruptible power supply

Method and apparatus for cycle error correction for a power converter device, such as an electronic power inverter

Method and apparatus for providing uninterruptible power

Method and apparatus for providing uninterruptible power

Method and apparatus for providing uninterruptible power

Method and apparatus for providing uninterruptible power

Apparatus and method for protecting an uninterruptible power supply and critical loads connected thereto

Power conversion system

Distributed power generation, conversion, and storage system

Control system for distributed power generation, conversion, and storage system

Stable power supplying apparatus

AC power supply apparatus, methods and computer program products using PWM synchronization

Bus control module for improving legacy support

Apparatus and methods for UPS bypass monitoring and control

Self-testing power supply apparatus, methods and computer program products

Power conversion apparatus and methods using an adaptive waveform reference

Uninterruptible power supply

Power supply device for vehicle

Power conversion apparatus with DC bus precharge circuits and methods of operation thereof

Apparatus and methods for regulating electric power

DC backup power supply system

Multi-mode uninterruptible power supplies and methods of operation thereof

On-site power generation system with redundant uninterruptible power supply

Electric storage augmentation of fuel cell response to AC system transients

Battery communication system

Uninterruptable power supply system and method

Transfer circuit topology for redundant power generator regulators and inverting DC drives

Emergent power supply system and method of achieving input current balance in such system

Power conversion apparatus and methods using DC bus shifting

Methods and apparatus for providing uninterruptible power

Power supply with AC and DC back-up power

DC backup power supply system

Power supply control apparatus, power supply control system, and administration apparatus

Transformerless, load adaptive speed controller

Modular AC voltage supply and algorithm for controlling the same

Uninterruptible power system with two current conversion units

Two-level protection for uninterrupted power supply

Uninterruptible power supply apparatus

Starting circuit for power-converting apparatus

Backup power supply system with a null transfer time

Linear motor system

System and method for managing uninterruptible power supply systems

Load management in a power system

Device for powering equipment, and an equipment power supply system

Uninterruptible power supply socket

Modular uninterruptible power supply system and control method thereof

Non-isolated AC power supply device and method for controlling the same

Modular AC power supply system with fault bypass and method of switching output modes

Uninterruptible power supply

Automated bypass method and apparatus

Battery exchange apparatus and method for uninterruptible power supply

Integrated closed loop control method and apparatus for combined uninterruptible power supply and generator system

Grid-connected power systems having back-up power sources and methods of providing back-up power in grid-connected power systems

Electric power converting device

Agile uninterruptible power supply for efficient critical load support and grid contingency ride-through

Emergency protection system for UPS

Elevator backup power system and method

Systems and methods for managing an energy-storage device

Inverter power source load dependent frequency control and load shedding

Uninterruptable power supply with supplemental power apportionment

Apparatus for internet and power backup

Mitigating distribution of debris associated with a catastrophic failure of a battery cell

Uninterruptible power apparatus with function of forced disconnection path and method of forcing disconnection path thereof

Methods, systems, and devices for maintenance and optimization of battery cabinets

Methods, systems, and devices for maintenance and optimization of battery cabinets

Apparatus for internet and power backup

System and method to provide portable and continuous power supply with re-charging feature

System for controlling power in a facility

Shared resonant turn off circuit

Inverter power source load dependent frequency control and load shedding

System and method for in-rack generation of alternating current voltage during power grid outages

System for controlling power in a facility

Device and process for detecting and mitigating reverse power-flow

Power converter

Clamp circuit to reduce overshoot in power converters

Hybrid generator system and method with multi tasked power inverter

DC-AC bidirectional converter

Method and apparatus for bi-directional switched mode power supply with fixed frequency operation

Power source load control

Rapid shutdown of photovoltaic systems

Modular uninterruptible power supply

Electrical power system with automatic transfer switch failure protection

Battery backup based on voltage feed-forward control in a power supply

Systems, methods, and devices for providing drive electronics with a backup power supply for an LED luminaire

Apparatus and methodology for battery backup circuit and control in an uninterruptible power supply

AC power control for a power supply system during AC line disturbance

System and method for generating, storing and transferring electrical power between a vehicle and an auxiliary application