| Patent application number | Description | Published |
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| 20090091302 | METHOD OF CHARGING AND DISCHARGING OF SUPERCAPACITORS WITHOUT THE USE OF CONVERTERS OR CHARGERS - An electrical power system may be provided with temporary power from a bank of supercapacitors connected to a bus of the power system. The supercapacitors may be charged from an output from a primary power source of the system during start-up of the power source. Output voltage of the primary power source may progressively increase and capacitor charging may occur at this progressively increasing voltage. Dedicated current-limiting devices are not required during charging. When temporary power is required the supercapacitors may be discharged sequentially in a series combination so that a high internal voltage of each capacitor is maintained and so that virtually all of the stored energy of the capacitor may be discharged to the bus at a usable voltage. | 04-09-2009 |
| 20090190279 | ELECTRONIC LOAD CONTROL UNIT (ELCU) USED AS BUS TIE BREAKER IN ELECTRICAL POWER DISTRIBUTION SYSTEMS - The present invention provides an electrical power distribution system that includes a first primary distribution panel (PDP) connected to a first source of electrical power and a second PDP connected to a second source of electrical power. The second PDP is connected to the first PDP by a conductor. A first ELCU receives signals corresponding to the flow of current through the first PDP to a load. A second ELCU receiving signals corresponding to the flow of current between the first PDP and the second PDP and a third ELCU receives signals corresponding to the flow of current between the second PDP and the first PDP. The first, second and third ELCUs protect the electrical power distribution system from a variety of fault conditions. | 07-30-2009 |
| 20090199014 | SYSTEM AND METHOD FOR SECURING AND EXECUTING A FLASH ROUTINE - A microcontroller comprises a random access memory (RAM) device; a non-volatile memory device having a data sector, wherein operation codes are stored as data files in the data sector; and a processor configured to retrieve the operation codes from the data sector, load the retrieved operation codes into the RAM device and run the decrypted operation codes from the RAM device. | 08-06-2009 |
| 20090199048 | SYSTEM AND METHOD FOR DETECTION AND PREVENTION OF FLASH CORRUPTION - A non-volatile memory device comprises an application code sector of sufficient size to store a first copy of an application code and a second copy of the application code; and a boot sector having a boot loader code embodied therein. The boot loader code is configured to cause a processor to check the integrity of both the first and second copies of the application code; if the first copy is corrupted, overwrite the first copy of the application code with the second copy; and if the second copy is corrupted, overwrite the second copy of the application code with the first copy. | 08-06-2009 |
| Patent application number | Description | Published |
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| 20090147414 | GROUND FAULT DETECTION IN AN UNGROUNDED ELECTRICAL SYSTEM - An ungrounded electrical power distribution system may experience a single line to ground fault. Such a fault may not disrupt operation of the system, but its presence may raise a risk of additional problems if left uncorrected. A system for progressively grounding the ungrounded system may be initiated when a line to ground fault is suspected. As grounding through successively lower impedance proceeds, fault current may increase and detection of severity of the line to ground fault may be more readily achieved, thus facilitating localization of the fault. | 06-11-2009 |
| 20090147415 | GROUND FAULT DETECTION AND LOCALIZATION IN AN UNGROUNDED OR FLOATING DC ELECTRICAL SYSTEM - An ungrounded or floating DC electrical power distribution system may experience a single line to ground fault. Such a fault may not disrupt operation of the system, but its presence may raise a risk of additional problems if left uncorrected. A system for progressively grounding the ungrounded system may be initiated when a line to ground fault is suspected based on the voltage difference measured to a common chassis point. As grounding through successively lower impedance proceeds, fault current may increase and detection of severity of the line to ground fault may be more readily achieved, thus facilitating localization of the fault. Localization may be achieved through an analysis of direction of capacitive currents in isolatable zones of the system. | 06-11-2009 |
| 20090189455 | SOLID STATE POWER CONTROLLER (SSPC) USED AS BUS TIE BREAKER IN ELECTRICAL POWER DISTRIBUTION SYSTEMS - The present invention provides an electrical power distribution system that includes a first primary distribution panel (PDP) connected to a first source of electrical power and a second PDP connected to a second source of electrical power. The second PDP is connected to the first PDP by a conductor. A first solid state power controller (SSPC) receives signals corresponding to the flow of current through the first PDP to a load. A second SSPC receives signals corresponding to the flow of current between the first PDP and the second PDP. The first and second SSPC protect the electrical power distribution system from a variety of fault conditions. | 07-30-2009 |
| 20100280682 | METHOD FOR ACTIVE POWER MANAGEMENT AND ALLOCATION OF FUNCTIONALITY - Methods for active power management, i.e., the power management method may be activated in response to changes in the supply and demand of power in a system, are disclosed. The power management method may use dynamically collected data reporting levels of electrical power utilized by systems while matching them to the available power. One embodiment of the present invention may be applied in smaller or medium sized systems. Another embodiment of the present invention may be implemented making use of additional aircraft resources, such as an integrated modular avionics (IMA) line replaceable unit (LRU) in larger sized systems. Both of these embodiments may make use of data collected from systems utilizing or generating electrical via the bus power control unit (BPCU) LRU, the data processing taking place either locally in the BPCU (small or medium sized systems) or in the IMA (larger systems). | 11-04-2010 |
