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Class Information
Number: 307/66
Name: Electrical transmission or interconnection systems > Plural supply circuits or sources > Substitute or emergency source > Storage battery or accumulator
Description: Subject matter in which a substitute or emergency source is a storage battery.


Sub-classes under this class:

Class Number Class Name Patents
307/67 With intervening dynamoelectric machine 32


Patents under this class:

Patent Number Title Of Patent Date Issued
7432617 Uninterruptible power system Oct. 7, 2008
7432616 Inverter device Oct. 7, 2008
7420295 Power unit for conveyance and conveyance provided with the power unit Sep. 2, 2008
7411315 Battery communication system Aug. 12, 2008
7391159 Lighting device with multiple power sources and multiple modes of operation Jun. 24, 2008
7388508 Uninterruptible power supply controller and method Jun. 17, 2008
7388348 Portable solar energy system Jun. 17, 2008
7385374 Adaptive power system Jun. 10, 2008
7372177 Control system, method and product for uninterruptible power supply May. 13, 2008
7362601 Power supply device Apr. 22, 2008
7355303 Constant voltage discharge device Apr. 8, 2008
7352578 Fuel cell system with inverter and phase change material Apr. 1, 2008
7352087 Power system configuration Apr. 1, 2008
7352083 Apparatus for and method of UPS operation Apr. 1, 2008
7348759 Electronic apparatus, electronic apparatus system, and operation mode switching method Mar. 25, 2008
7336978 Mobile device having an overcurrent cutoff function Feb. 26, 2008
7336005 System and method for brownout protection of a FET based battery switch Feb. 26, 2008
7336004 Topologies for using multiple energy sources for power conversions Feb. 26, 2008
7321174 Apparatus, system, and method for maximizing power system holdup time during loss of input power Jan. 22, 2008
7312539 Output suppressing method of a plurality of dispersed power sources and dispersed power source managing system Dec. 25, 2007
7307360 Uninterruptible power supplies Dec. 11, 2007
7301249 Battery connect/disconnect for an uninterruptible power supply Nov. 27, 2007
7301248 Control method for voltage boosting circuit Nov. 27, 2007
7298114 Nickel hydrogen/nickel cadmium battery charger with the function of emergency power supply Nov. 20, 2007
7294940 Power over ethernet battery backup Nov. 13, 2007
7288855 Methods and apparatus for providing uninterruptible power Oct. 30, 2007
7282813 AC power backfeed protection based on phase shift Oct. 16, 2007
7259478 Backup power supply for telephone set Aug. 21, 2007
7259476 DC and AC uninterruptible power supply Aug. 21, 2007
7250231 Auxiliary fuel cell system Jul. 31, 2007
7245469 DC backup power supply device and method for diagnosing the same Jul. 17, 2007
7239044 Enhanced distributed energy resource system Jul. 3, 2007
7239043 Power conversion apparatus and methods using an adaptive waveform reference Jul. 3, 2007
7233129 Generator with utility fault ride-through capability Jun. 19, 2007
7230353 Charging circuit in uninterruptible power supply system Jun. 12, 2007
7228444 System and method for preserving state data of a personal computer in a standby state in the event of an AC power failure Jun. 5, 2007
7227282 Alternative alternating current power supply Jun. 5, 2007
7224131 High efficiency lighting system May. 29, 2007
7220014 Quick mounting system for emergency lighting device May. 22, 2007
7218056 Lighting device with multiple power sources and multiple modes of operation May. 15, 2007
7216246 Electronic apparatus and supply power setting method for the apparatus May. 8, 2007
7208894 Electric vehicle motor and control system with high efficiency regeneration Apr. 24, 2007
7202576 Uninterruptible power supply systems and enclosures Apr. 10, 2007
7199550 Method of operating a secondary battery system having first and second tanks for reserving electrolytes Apr. 3, 2007
7199489 Battery communication system Apr. 3, 2007
7166934 Package-based voltage control Jan. 23, 2007
7166932 Power circuit Jan. 23, 2007
7166931 Uninterruptible power supply apparatus Jan. 23, 2007
7166930 Uninterruptible power supply apparatus and methods using a display with variable backlighting Jan. 23, 2007
7157810 Backup power supply Jan. 2, 2007



 
 
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