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7638893 |
Method for operating a wind park
Wind power installations were initially always erected in the form of individual units and it is only in recent years that, caused also by administrative and building regulations, wind power...
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7629771 |
Protection device for non-common ground buses
A protection device for non-common ground buses is disclosed. The protection circuit includes a controller, a level shifter, a first group of switches, and a second group of switches. The...
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7619324 |
Power system with multiple generator sets
A method of operating a power system is provided. The power system may have a plurality of generator sets and a power line. The method may include commanding a plurality of the generator sets that...
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7612470 |
System for providing power over Ethernet through a patch panel
A system for providing power over Ethernet comprising: a plurality of means for receiving a current limited power signal, each of the means receiving a unique current limited power signal; a...
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7589436 |
Data processing unit and DC backup power supply
A backup power supply is so constructed that it is provided with multiple DC backup power supplies 111 to 11 N, each containing nickel-metal hydride battery, stored upright on the bottom of the...
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7589438 |
Source phase sensitive transfer method and apparatus
A method and apparatus for transferring AC electrical power to a load from a first power source to a second power source provides for a time delay in the transfer to avoid problems associated with...
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7547991 |
Redundancy power for communication devices
A system and method to provide redundant power to a failing line in a communication device within a communication network supporting the transmission and reception of data. Through the use of a...
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7538452 |
Power-saving circuit and method thereof
The present invention discloses a power-saving circuit applied in a portable electronic device, which includes a voltage input module for outputting a first enable signal after receiving an...
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7535129 |
Method and apparatus for transfer of a critical load from one source to a back up source using magnetically latched relays
An automatic transfer switch includes first and second magnetically latched relays that respectively connect first and second voltage sources to a critical load. The first and second relays are...
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7535123 |
Apparatus and method for selectively coupling system with a first power supply or a second power supply
An apparatus for selectively coupling a system with a first power supply or a second power supply includes: (a) a first switch for effecting a first coupling of the system with the first power...
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7528504 |
Automatic power adapter
An electrical device for automatically combining two input power source supply circuits with either aligned or unaligned phases, into a single operational circuit, with an output load capacity...
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7525220 |
Multi-input power supply circuit, and method of switching power supplies of the same
A multi-input power supply circuit includes a plurality of power supplies such as an alternating-current power supply, a direct-current power supply, and two batteries; a transformer including...
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7514819 |
Semiconductor switch assembly for pulse power apparatus
A capacitor-type pulse power apparatus for generating an electric current power pulse through an electrical load, comprises a charging power supply and at least one pulse power supply module. The...
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7504807 |
Switching regulator with voltage step up or pass in standby mode and with voltage step up/step down in normal operation mode
In a standby mode, a voltage step up DC/DC converter 5 supplies a power output voltage equal to or higher than a second set voltage which is lower than a first set voltage in a normal operating...
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7492061 |
Tapped interposer for connecting disk drive to chassis
Interposers for tapping a signal. An interposer can include an interposer printed circuit board, an output connector that couples the interposer circuit board with a backplane connector of a...
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7492215 |
Power managing apparatus
A power managing apparatus is utilized to control a first supply voltage, a second supply voltage, and a substrate voltage of a digital circuit. The power managing apparatus includes a voltage...
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7482711 |
Auxiliary power switching arrangement for PCI Express, PC's and similar applications
A series pass transistor voltage regulator is described having a main power source and an auxiliary power source. When the main power source voltage falls to a level the regulator can no longer...
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7456525 |
Multi-output power supply device for power sequencing
A packaged power supply device ( 10 ) is configured to output multiple supply voltages, which are converted from a single input voltage (V IN ). The packaged power supply device may can be...
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7449796 |
Power over ethernet controller suitable for multiple modes
A power over Ethernet controller supporting a plurality of powering modes, the power over Ethernet controller comprising: a pair of power sourcing equipments; and a control circuit; the control...
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7443053 |
Control circuit and method of electric output modes
A control circuit and control method of electric output modes for a stacked power supply system which has a circuit board to integrate a plurality of power supply devices to output electricity. The...
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7420296 |
Power supply circuit
A control circuit for a power supply circuit that selects an appropriate power source to continuously supply power. The control circuit includes a power synthesizing circuit for generating...
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7414330 |
Power switch device
A power switching device which is used to receive plenty of input voltage and output a switch voltage is provided. The device comprises a first switching unit, a second switching unit, and a...
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7405496 |
Transfer circuit topology for redundant power generator regulators and inverting DC drives
A method and transfer circuit topology for a redundant power converter for switching a load between power conversion circuits in a redundant system. The transfer circuit topology includes a first...
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7400067 |
Operation of a redundant power supply without isolation devices
Methods and apparatuses are disclosed that may allow elimination of isolation devices for redundant power supplies while mitigating the undesirable effects of their elimination.
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7375442 |
Interface circuit for providing a computer logic circuit with first and second voltages and an associated method
A universal interface circuit and an associated method are provided that can supply a computer logic circuit, such as the components mounted upon an adapter card, with first and second inputs...
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7298059 |
System and method for operating a wind farm under high wind speed conditions
A system and method of operating a wind farm, having multiple wind turbine generators, at high wind speeds is provided. Wind speeds at individual wind turbine generators are monitored and a signal...
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7286005 |
Supply voltage switching circuit
A supply voltage switching circuit for a computer includes a chipset, a first transistor, a second transistor, and a third transistor. The chipset includes a first MOSFET and a second MOSFET. A 5V...
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7274115 |
Method and apparatus for powering electronic circuits
A method and apparatus for powering an electronic circuit use comparators of supply voltages and voltage regulators to facilitate powering the electronic circuit utilizing more than one supply...
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7271504 |
Power-on reset semiconductor and method of controlling power supply voltage
A semiconductor integrated circuit includes a first logic circuit to which a first power supply voltage is applied and which outputs a first signal, a first level conversion circuit to which the...
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7262520 |
Robust power distribution systems and methods
The present invention provides systems and methods that allow for individual power sources to be disconnected and reconnected without interrupting the power supply from the other power sources and...
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7254002 |
Reverse conduction protection method and apparatus for a dual power supply driver
The invention is a dual stage power supply with a protection circuit for preventing reverse conduction through the lower voltage driver of the dual stage power supply and excess power dissipation...
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7239045 |
Power distribution system and control system for same
A control system for a power distribution system includes electrical operators each of which has an open input, a close input and an operator member adapted to cooperate with a corresponding...
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7235898 |
Vehicle power distribution node with redundant power supply
A system and method for providing power redundancy to certain devices of a vehicle that are typically controlled by means of a power distribution and control node. Power is delivered to the node by...
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7197429 |
Diagnosis system for household electric appliances
A diagnosis system for household electric appliances, such as refrigerators, freezers, and others, presenting multiple loads, energized by switches commanded by electronic c ontrols coupled to a...
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7166934 |
Package-based voltage control
A device package that receives a voltage from a power supply on a motherboard and that includes provisions for a voltage control element that controls the power supply voltage. The provisions for...
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7155320 |
Distributed power delivery system
A method for supplying power includes supplying power to at least one critical device, supplying power to at least one essential device, and remotely removing power to the essential device while...
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7154195 |
Digital signal voting scheme
A digital signal voting circuit ( 10 ) is described for each module in a modular uninterruptible power supply (UPS) in which a plurality of modules are connected in parallel. The voting circuit (...
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7141895 |
Circuit arrangement comprising a power supply unit
The circuit arrangement comprises a power supply unit with a first power supply only for the analogue signal processing part and for the control part of a respective device. For the digital signal...
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7130169 |
Short circuit protection for a power isolation device and associated diode
Short circuit protection is provided for an isolation component that has a parasitic diode as an inherent part of its construction. The isolation component may or may not be contained in an...
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7129600 |
Control circuit with multiple power sources
The present invention provides a control circuit with multiple power sources, which accepts an output signal from a comparator circuit. This control circuit with multiple power sources contains two...
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7119398 |
Power-up and power-down circuit for system-on-a-chip integrated circuit
A power-up and power-down circuit for an integrated circuit includes a voltage regulator set for a first voltage. A first I/O pad is coupled internally to an input to the voltage regulator and to...
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7116013 |
Electronic power source voltage regulator with UPS function
An electronic AC power source voltage regulator with the UPS function is provided. The proposed electronic power source voltage regulator includes: an input port, an output, a switch set...
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7078830 |
Connecting circuit and method for connecting a generator to the electricity grid making use thereof
The present invention relates to a connecting circuit for connecting to an electricity grid an electric generator for generating electrical energy, comprising a measuring circuit for measuring the...
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7042117 |
Power supply circuit for actuator of an on-board travel control device
A power supply circuit for various actuators includes control lines associated with the actuators that receive power from a single voltage increasing circuit. The power supply circuit supplies...
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7023110 |
Apparatus and method utilizing an AC adaptor port for event triggering
An apparatus and method for event triggering an electronic device utilize an AC adaptor port as a trigger source interface port. The apparatus for triggering the device comprises an AC adaptor...
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7015599 |
Backup power management system and method of operating the same
A backup power management system connectable to a primary power source and a secondary power source, and a method of operating the same. The system includes a transfer switch connectable to the...
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7009313 |
Multi-compliance voltage generator in a multichannel current stimulator
An improved multi-voltage power supply charges individual small capacitors to different voltages. Each small capacitor is assigned to a circuit, and is charged to a voltage level sufficient for the...
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6987333 |
Active circuit protection for switched power supply system
An active protection circuit for a MOSFET isolated switched power supply system operates to control the switching of the MOSFET isolation switches. A monitoring circuit operates to sense and turn...
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6900556 |
Power load-leveling system and packet electrical storage
A large-scale, capacitor-based electrical energy storage and distribution system capable of effectuating load-leveling during periods of peak demand on a utility, and of effectuating a cost savings...
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6897370 |
Power generation apparatus and its control method
In an AC module, if an interconnection relay is provided in an inverter, the inverter increases in size, and disconnection status between the AC module and a system upon occurrence of abnormal...
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