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Browse by Category: Main > Electrical & Energy
Class Information
Number: 307/127
Name: Electrical transmission or interconnection systems > Switching systems > Condition responsive > Electrical > Polarity, phase sequence or reverse flow
Description: Subject matter in which the electrical condition to which the system is responsive is a condition of polarity, phase sequence or reverse flow.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8713363 Power supply system for a data storage system and a method of controlling a power supply Apr. 29, 2014
8710704 Performance venue with dynamic mechanical load management system and method Apr. 29, 2014
8675326 Bidirectional switch and charge/discharge protection device using same Mar. 18, 2014
8674631 Power conversion apparatus and method of controlling capacitor voltage of power conversion apparatus Mar. 18, 2014
8649146 Capacitance check and current monitoring circuit for use with a circuit protection device Feb. 11, 2014
8638534 Load driving device Jan. 28, 2014
8605399 Load driving device Dec. 10, 2013
8508078 Power switch with reverse current blocking capability Aug. 13, 2013
8471414 Low impedance polarity conversion circuit Jun. 25, 2013
8446050 Solid-state alternating current (AC) switch May. 21, 2013
8432060 Device for the electric actuation of a safety-critical system Apr. 30, 2013
8421276 Battery backup protection circuit Apr. 16, 2013
8415835 Plug-in power line conditioner Apr. 9, 2013
8351172 Power supply control apparatus Jan. 8, 2013
8344541 Reverse current protection methods and systems for trailer tow Jan. 1, 2013
8300436 Device for protection of power factor correction in three phase power supply and control method thereof Oct. 30, 2012
8270133 Power supply control apparatus Sep. 18, 2012
8212423 Switching controlgear of circuit breaker Jul. 3, 2012
8183715 Reverse current preventing circuit and power source switching apparatus May. 22, 2012
8174808 Load driving device May. 8, 2012
8093758 Method and apparatus for control of inductively coupled power transfer systems Jan. 10, 2012
8093748 Universal power inlet system for power distribution units Jan. 10, 2012
8067859 Reverse polarity protection for MOSFETs Nov. 29, 2011
8058751 Circuit interrupter and method of processor phase synchronization Nov. 15, 2011
8031450 Power supply control circuit Oct. 4, 2011
8027130 Fan system and power reverse protection apparatus thereof Sep. 27, 2011
7996575 Detection and configuration of SAS/SATA connection Aug. 9, 2011
7989985 Method and system to stop return current from flowing into a disconnected power port of a dual battery powered device Aug. 2, 2011
7969046 Power supply control apparatus Jun. 28, 2011
7936093 Phase control switching device May. 3, 2011
7924540 Over-voltage protection circuit Apr. 12, 2011
7898104 Apparatus and method for dynamically balancing loading of a polyphase circuit Mar. 1, 2011
7839665 System interconnection inverter including overvoltage and negative voltage protection Nov. 23, 2010
7808128 Remote monitoring of control decisions for network protectors Oct. 5, 2010
7777370 Integrated gate drive for use in control and protection of power modules Aug. 17, 2010
7723871 Heating power supply apparatus May. 25, 2010
7692908 Protection of polarity-sensitive components connected in parallel with a direct current motor or inductor Apr. 6, 2010
7667353 Remote electrical device switching control, and status monitoring and reporting system Feb. 23, 2010
7633185 Apparatus for interfacing a three phase power supply to a load Dec. 15, 2009
7623157 Polarity correction circuit and system incorporating same Nov. 24, 2009
7592781 Charger control circuit with automatic polarity selection Sep. 22, 2009
7589438 Source phase sensitive transfer method and apparatus Sep. 15, 2009
7560834 Generator switch Jul. 14, 2009
7531918 Hot insertion and extraction of power supply module May. 12, 2009
7521825 Interface switch for distributed energy resources Apr. 21, 2009
7482712 DC power supply with input voltage polarity indication Jan. 27, 2009
7463468 Reverse circulation protection circuit Dec. 9, 2008
7459804 Static transfer switch device and method Dec. 2, 2008
7427815 Method, memory media and apparatus for detection of grid disconnect Sep. 23, 2008
7411768 Low-loss rectifier with shoot-through current protection Aug. 12, 2008

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