| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 307062000 | Load-limiting | 12 |
| 20100038963 | Systems and Methods for Power Supply Wear Leveling In a Blade Server Chassis - A method for wear leveling in an information handling system including multiple power supply units (PSUs) is provided. The method includes maintaining each PSU in one of multiple different operational states, collecting data relating to the use of each PSU, storing the collected data, and automatically changing the operational state of at least one of the PSUs based at least on the collected data regarding the use of each PSU in order to level the wear on the PSUs. | 02-18-2010 |
| 20110175450 | Load Control Module For A Generator And Method Of Operation - A load control module is provided for use with a transfer switch apparatus that controls the delivery of standby electrical power to a load during utility power interruption. The load control module selectively brings loads online to receive standby electrical power to prevent overloading of the electric generator that is providing the standby electrical power. The frequency of the electrical power is also monitored and if a low frequency condition is detected, loads are taken offline (shed). A method to flag those loads that induce an overload condition is also provided. | 07-21-2011 |
| 20120091809 | FIELD DEVICE FOR A PROCESS AUTOMATION SYSTEM HAVING AN INTRINSICALLY SAFE POWER SUPPLY DEVICE - The disclosure relates to a field device of a process automation system, having at least one first intrinsically safe power supply unit, which provides locally stored electrical energy in an integrated storage element for supplying power to an electronics unit for process control. | 04-19-2012 |
| 20120326512 | ELECTRIC POWER CONTROL APPARATUS, ELECTRIC POWER CONTROL METHOD, AND ELECTRIC POWER FEEDING SYSTEM - An electric power control apparatus, an electric power control method, and an electric power feeding system by which the maximum operating point of a generating element such as a solar battery can be controlled to be maintained, and electric power loss can be avoided. The electric power control apparatus is provided with an electric power path switch unit to which a plurality of generating elements can be connected, and a voltage conversion unit that converts a voltage level which is generated by the generating elements and supplied via the electric power path switch unit. The electric power path switch unit includes a first connection switching function which switches between series connection and parallel connection for the plurality of generating elements, and a second connection switching function which switches between connected and non-connected to an input side of the voltage conversion unit for the generating elements connected in series or parallel. | 12-27-2012 |
| 20130049469 | POWER COMBINING IN POWER OVER ETHERNET SYSTEMS - A technique for combining power to a single load from multiple power supplies using power over Ethernet (PoE) is disclosed. Each power supply is coupled to associated power sourcing equipment (PSE) providing PoE, and each PSE has a current limit. The power supplies supply approximately the same voltage, but the output voltages are typically not exactly equal. All the power supplies are connected via diodes to a common load terminal. The power supply outputting the highest voltage first supplies power to the load terminal, since only its diode is forward biased, until a PoE current limit is reached. Then its duty cycle is limited. The load terminal voltage is then inherently lowered to cause the diode of the power supply with the next highest output voltage to connect it to the load to supply additional power to the load as the first power supply continues to supply its limited current. | 02-28-2013 |
| 20130278067 | ELECTRICALLY-POWERED PROGRAMMABLE WASTE ENCLOSURE - This invention is directed towards a waste enclosure device (“device”) comprising a waste enclosure employing operational functions including collection and monitoring capacity wherein said device includes one or more programmable logic controllers. Operational functions are performed by electrical components including sensors to determine waste deposits characteristics and contents. Said device operational functions are further adapted to send and receive data, optionally wirelessly, and configured and adapted to utilize solar derived electric power and, optionally, electric power from other sources. | 10-24-2013 |
| 20140159492 | Power Bank Circuit - The present invention discloses a power bank circuit. The power bank circuit includes a charger circuit, a battery circuit, a power conversion circuit, a temperature detecting circuit and a current distribution circuit. The charger circuit receives an input voltage and provides a charging current to the battery circuit. The power conversion circuit converts a battery voltage to an output voltage and provides an output current. The temperature detecting circuit detects the temperature of the packaged structure. When the temperature of the packaged structure exceeds a first predetermined temperature, the current distribution circuit first reduces the output current. When the temperature of the packaged structure exceeds a second predetermined temperature, the current distribution circuit then reduces the charging current. | 06-12-2014 |
| 20160043560 | DEVICE FOR INTRINSICALLY SAFE REDUNDANT CURRENT SUPPLY OF FIELD DEVICES - A device is provided for intrinsically safe redundant current supply of field devices with a common current-limiting resistor in the mesh of the field device and with redundant current supply units. A current sensor can be provided in the mesh of the field device, the output signal of which sensor is connected to devices for controlling current or active current limiting in the redundant current supply units. | 02-11-2016 |
| 20160043561 | DEVICE FOR INTRINSICALLY SAFE REDUNDANT CURRENT SUPPLY OF FIELD DEVICES - A device is provided for intrinsically safe redundant current supply of field devices with a common current-limiting resistor in the mesh of the field device and with redundant current supply units. A current sensor can be provided in the mesh of the field device, the output signal of which sensor is connected to a controllable voltage source in the redundant current supply units. | 02-11-2016 |
| 20160072292 | ENERGY GENERATION LOAD COMPENSATION - An inverter energy system supplies power to a site. The inverter energy system comprises a number of solar strings, each solar string including a solar panel(s) as a renewable energy source and an inverter. The inverter energy system is connected to a mains power supply (grid) and to a site load (sub circuits). The forward or reverse power flow into or out of the mains power supply is monitored at a monitoring point at the site. A rate limit is set for power flow into and/or or out of the mains power supply. The supply of power from the inverter energy system is controlled so that the power flow into or out of the mains power supply is within the set rate limit. | 03-10-2016 |
| 20160164294 | SYSTEMS AND METHODS FOR REACTIVE POWER COMPENSATION - A method for compensating self-induced voltage variations includes computing a first reactive power value (Q | 06-09-2016 |
| 20160190806 | GRID POWER SUPPLY APPARATUS AND METHODS USING ENERGY STORAGE FOR TRANSIENT STABILIZATION - A system includes at least one generator coupled to an island grid, at least one energy storage unit and at least one converter coupled to the at least one energy storage unit and configured to be coupled to the island grid. The system further includes a control circuit configured to cause the at least one converter to transfer power between the at least one energy storage unit and the grid responsive to a change in a load on the island grid to maintain operation of the at least one generator at a predetermined operating point. The at least one generator may include a control system configured to match generator output to the load and the control circuit may be configured to maintain the control system of the at least one generator within a predetermined dynamic response capability limit responsive to the change in the load. | 06-30-2016 |
