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Class Information
Number: 307/130
Name: Electrical transmission or interconnection systems > Switching systems > Condition responsive > Electrical > Voltage
Description: Subject matter in which the electrical condition to which the system is automatically responsive is voltage.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626286 |
Method for mains-synchronous switching of circuit breakers, and an apparatus for carrying out this method |
Dec. 1, 2009 |
| 7622886 |
Method for determination of the risk to disturbance-free operation of a frequency converter |
Nov. 24, 2009 |
| 7622901 |
System power supply apparatus and operational control method |
Nov. 24, 2009 |
| 7592718 |
Boosted switch drive with charge transfer |
Sep. 22, 2009 |
| 7586214 |
High voltage energy storage connection monitoring system and method |
Sep. 8, 2009 |
| 7557468 |
Panel and breaker for distributing UPS power |
Jul. 7, 2009 |
| 7557467 |
Portable photographing apparatus and power switching control method |
Jul. 7, 2009 |
| 7557461 |
Power supply device and power supply method |
Jul. 7, 2009 |
| 7547991 |
Redundancy power for communication devices |
Jun. 16, 2009 |
| 7547994 |
Apparatus and method for managing power of mobile terminal |
Jun. 16, 2009 |
| 7541698 |
Quiet fan speed control |
Jun. 2, 2009 |
| 7535130 |
Method and apparatus for mode selection for high voltage integrated circuits |
May. 19, 2009 |
| 7528734 |
System and method for automatically detecting power supply voltage |
May. 5, 2009 |
| 7521824 |
Contactor control apparatus and contactor control method for use in electric vehicle |
Apr. 21, 2009 |
| 7521825 |
Interface switch for distributed energy resources |
Apr. 21, 2009 |
| 7508095 |
Apparatus to generate high voltage by digital control and method thereof |
Mar. 24, 2009 |
| 7459805 |
Image forming apparatus |
Dec. 2, 2008 |
| 7421323 |
Automated vehicle battery protection with programmable load shedding and engine speed control |
Sep. 2, 2008 |
| 7417339 |
Fast transition power supply |
Aug. 26, 2008 |
| 7417338 |
Disconnecting device for communications connections |
Aug. 26, 2008 |
| 7408274 |
Control and operating condition monitoring of dual series switch contactors for electric motor or other electrical load |
Aug. 5, 2008 |
| 7394172 |
Systems and methods for switching to a back-up power supply |
Jul. 1, 2008 |
| 7388305 |
AC/DC converter having single detectable input |
Jun. 17, 2008 |
| 7385312 |
Method and apparatus for mode selection for high voltage integrated circuits |
Jun. 10, 2008 |
| 7378761 |
Control circuit and a method for electrically connecting a load to a power source |
May. 27, 2008 |
| 7348689 |
Switching circuit and a method of operation thereof |
Mar. 25, 2008 |
| 7345383 |
Abnormality detection apparatus for a power feed circuit |
Mar. 18, 2008 |
| 7329969 |
Electronic device including interface terminal and power supply cable connected thereto |
Feb. 12, 2008 |
| 7301736 |
Method and device for shutting down a drive with a matrix converter during a power outage |
Nov. 27, 2007 |
| 7291986 |
Step sinusoidal voltage controlling method for hid, flourescent and incandescent light dimming applications |
Nov. 6, 2007 |
| 7271507 |
Process and system for controlling an electronic power component and data recording support comprising instructions for executing the process |
Sep. 18, 2007 |
| 7253542 |
Quiet fan speed control |
Aug. 7, 2007 |
| 7242237 |
Supply switch circuit for implementing a switchable on-chip high voltage supply |
Jul. 10, 2007 |
| 7227281 |
Causing operation of load in alternate, reduced peak power mode |
Jun. 5, 2007 |
| 7224086 |
Universal multiple device power adapter and carry case |
May. 29, 2007 |
| 7218503 |
Method of determining the correct average bias compensation voltage during a plasma process |
May. 15, 2007 |
| 7215043 |
Power supply voltage switch circuit |
May. 8, 2007 |
| 7197650 |
Charging and monitoring apparatus and method of charging a battery and monitoring the power level through power supply line |
Mar. 27, 2007 |
| 7193337 |
System and method utilizing a solid state power controller (SSPC) for controlling an electrical load of a variable frequency three-phase power source |
Mar. 20, 2007 |
| 7183672 |
MOSFET based, high voltage, electronic relays for AC power switching and inductive loads |
Feb. 27, 2007 |
| 7183671 |
Semiconductor device and method for producing the same |
Feb. 27, 2007 |
| 7157813 |
Method and apparatus for mode selection for high voltage integrated circuits |
Jan. 2, 2007 |
| 7157808 |
Power supply for a cochlear implant |
Jan. 2, 2007 |
| 7102253 |
MOSFET based, high voltage, electronic relays for AC power switching and inductive loads |
Sep. 5, 2006 |
| 7064460 |
Method for balancing a three-point DC intermediate circuit, and an apparatus for carrying out the method |
Jun. 20, 2006 |
| 7019417 |
Power-on reset circuit with current detection |
Mar. 28, 2006 |
| 7012460 |
IC device having a transistor switch for a power supply |
Mar. 14, 2006 |
| 7009314 |
One-way switch |
Mar. 7, 2006 |
| 6989613 |
Line voltage variation compensation apparatus |
Jan. 24, 2006 |
| 6924568 |
Quiet fan speed control |
Aug. 2, 2005 |
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