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Class Information
Number: 307/65
Name: Electrical transmission or interconnection systems > Plural supply circuits or sources > Substitute or emergency source > Plural substitute sources
Description: Subject matter having plural substitute sources.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7589436 |
Data processing unit and DC backup power supply |
Sep. 15, 2009 |
| 7566991 |
Retrofittable power distribution system for a household |
Jul. 28, 2009 |
| 7567060 |
System and method for advanced power management |
Jul. 28, 2009 |
| 7557464 |
System and method for isolating sources and loads of a power system |
Jul. 7, 2009 |
| 7550874 |
System and method for a power supply device |
Jun. 23, 2009 |
| 7538450 |
Power switch device and method for cluster computer |
May. 26, 2009 |
| 7535119 |
Power control apparatus of a complex terminal |
May. 19, 2009 |
| 7531918 |
Hot insertion and extraction of power supply module |
May. 12, 2009 |
| 7531919 |
Multiple generator loadcenter and method of distributing power from multiple generators |
May. 12, 2009 |
| 7525217 |
Rectifier-super capacitor device for use in a power system for a telecommunication facility |
Apr. 28, 2009 |
| 7525218 |
Uninterruptible power supply, uninterruptible power supply system and shutdown processing program product |
Apr. 28, 2009 |
| 7521822 |
Protection techniques for a back-up electric power system |
Apr. 21, 2009 |
| 7489051 |
Adaptive power system with improved efficiency and distribution space reduction |
Feb. 10, 2009 |
| 7456519 |
Power conversion system |
Nov. 25, 2008 |
| 7449798 |
Co-generated power supply system |
Nov. 11, 2008 |
| 7423355 |
Power controller, apparatus provided with backup power supply, program for controlling power, and method for controlling power |
Sep. 9, 2008 |
| 7420294 |
Smart power switch for broadband communications network |
Sep. 2, 2008 |
| 7418314 |
Methods and apparatus for providing and distributing standby power |
Aug. 26, 2008 |
| 7394170 |
Reconfigurable backplane power distribution |
Jul. 1, 2008 |
| 7352578 |
Fuel cell system with inverter and phase change material |
Apr. 1, 2008 |
| 7345380 |
Backup power supply system with a null transfer time |
Mar. 18, 2008 |
| 7332833 |
Switching circuit for master-slave feeding mode of low voltage power supply |
Feb. 19, 2008 |
| 7286005 |
Supply voltage switching circuit |
Oct. 23, 2007 |
| 7276815 |
Power management system |
Oct. 2, 2007 |
| 7276813 |
Redundant input power system |
Oct. 2, 2007 |
| 7274115 |
Method and apparatus for powering electronic circuits |
Sep. 25, 2007 |
| 7265458 |
Apparatus and methods for coordinated static switch operations for load transfers in uninterruptible power supply systems |
Sep. 4, 2007 |
| 7262520 |
Robust power distribution systems and methods |
Aug. 28, 2007 |
| 7259477 |
Uninterruptible power supply |
Aug. 21, 2007 |
| 7237134 |
Backup power module for industrial control and monitoring network |
Jun. 26, 2007 |
| 7199535 |
Doubled-ended inverter drive system topology for a hybrid vehicle |
Apr. 3, 2007 |
| 7191351 |
Method and network for providing backup power to networked devices |
Mar. 13, 2007 |
| 7183669 |
Power and/or energy monitor, method of using, and display device |
Feb. 27, 2007 |
| 7180210 |
Standby generator integration system |
Feb. 20, 2007 |
| 7173821 |
Computer rack with power distribution system |
Feb. 6, 2007 |
| 7154195 |
Digital signal voting scheme |
Dec. 26, 2006 |
| 7151326 |
System and method for safely and efficiently capturing power currently produced by already available power supplies to power electrical devices in a truck while its engine is turned off |
Dec. 19, 2006 |
| 7148585 |
Power grid backfeed protection apparatus |
Dec. 12, 2006 |
| 7148586 |
Sine wave generation circuit and uninterruptible power supply system using the same |
Dec. 12, 2006 |
| 7145266 |
Parallel-connected inverters with separate controllers having impedance current regulators |
Dec. 5, 2006 |
| 7141894 |
Apparatus for providing high quality power |
Nov. 28, 2006 |
| 7141893 |
Highly available power distribution system |
Nov. 28, 2006 |
| 7130169 |
Short circuit protection for a power isolation device and associated diode |
Oct. 31, 2006 |
| 7129599 |
Dual feed power supply systems with enhanced power quality |
Oct. 31, 2006 |
| 7119458 |
A/C--D/C power system with internal fuel cell |
Oct. 10, 2006 |
| 7109606 |
High-security electric power supply device |
Sep. 19, 2006 |
| 7105949 |
Emergent power supply system and method of achieving input current balance in such system |
Sep. 12, 2006 |
| 7071581 |
Uninterruptible power supply system using a slip-ring, wound-rotor-type induction machine and a method for flywheel energy storage |
Jul. 4, 2006 |
| 7071580 |
Uninterruptible power supply apparatus |
Jul. 4, 2006 |
| 7064458 |
Method and system for transferring a load between AC voltage sources |
Jun. 20, 2006 |
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