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Class Information
Number: 361/33
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > Motor protective condition responsive circuits > Voltage
Description: Subject matter wherein the sensing means is responsive to an abnormal voltage condition.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7614377 |
Engine control apparatus |
Nov. 10, 2009 |
| 7612971 |
Micro-electromechanical system based switching in heating-ventilation-air-conditioning systems |
Nov. 3, 2009 |
| 7608940 |
Power supply device and method of controlling the same |
Oct. 27, 2009 |
| 7602594 |
Motor control apparatus and motor control method |
Oct. 13, 2009 |
| 7570008 |
Power module, power converter, and electric machine system for mounting in vehicle |
Aug. 4, 2009 |
| 7554780 |
Inverter system, AC rotating machine and electric power converter |
Jun. 30, 2009 |
| 7551411 |
Control and protection methodologies for a motor control module |
Jun. 23, 2009 |
| 7531983 |
Method of controlling startup current of motor and disk drive using the method |
May. 12, 2009 |
| 7518838 |
Protection of variable frequency power systems from excessive peak electrical potentials |
Apr. 14, 2009 |
| 7508315 |
Signaling device and method of alerting a work machine operator to a predetermined condition using same |
Mar. 24, 2009 |
| 7489483 |
System and method for look ahead detection of electrical problems at a motor of a vehicle |
Feb. 10, 2009 |
| 7450356 |
Rotation speed controller for fans |
Nov. 11, 2008 |
| 7402965 |
DC common bus self-protection method and system |
Jul. 22, 2008 |
| 7375934 |
Power converter controlling apparatus and method applying a fault protection scheme in a motor drive system |
May. 20, 2008 |
| 7365450 |
Current cutoff circuit and electric steering wheel lock |
Apr. 29, 2008 |
| 7342371 |
System and method for detecting motor run condition |
Mar. 11, 2008 |
| 7321213 |
Motor controller |
Jan. 22, 2008 |
| 7321214 |
Motor control system |
Jan. 22, 2008 |
| 7276870 |
Arrangement for overload protection and method for reducing the current consumption in the event of mains voltage fluctuations |
Oct. 2, 2007 |
| 7227325 |
Method and arrangement for protecting a frequency converter |
Jun. 5, 2007 |
| 7224557 |
Method and system of controlling asynchronous contactors for a multi-phase electric load |
May. 29, 2007 |
| 7177124 |
Brushless DC fan motor driving circuit |
Feb. 13, 2007 |
| 7123458 |
Method and circuit arrangement for protecting an electric motor from an overload |
Oct. 17, 2006 |
| 7091689 |
Driving circuit for a two-phase DC brushless fan motor |
Aug. 15, 2006 |
| 7061736 |
Method to project electronics from load dump |
Jun. 13, 2006 |
| 7035064 |
Method and circuit arrangement with adaptive overload protection for power switching devices |
Apr. 25, 2006 |
| 7006338 |
System and method for individual phase motor over voltage protection |
Feb. 28, 2006 |
| 6989649 |
Switch assembly, electric machine having the switch assembly, and method of controlling the same |
Jan. 24, 2006 |
| 6778367 |
Method and device for detecting the blocking of a stepper motor |
Aug. 17, 2004 |
| 6744609 |
Motor control circuit having motor protective circuit |
Jun. 1, 2004 |
| 6728084 |
System and method for overvoltage protection of an integrated circuit |
Apr. 27, 2004 |
| 6713979 |
Actuator drive circuit |
Mar. 30, 2004 |
| 6522256 |
Hybrid current and voltage sensing system |
Feb. 18, 2003 |
| 6438973 |
Control board alarms |
Aug. 27, 2002 |
| 6259587 |
Direct current motor safety circuits for fluid delivery systems |
Jul. 10, 2001 |
| 6198241 |
Motor protection for a powered door system |
Mar. 6, 2001 |
| 6150792 |
Phase monitor |
Nov. 21, 2000 |
| 6108179 |
Emergency shut-down apparatus for motor |
Aug. 22, 2000 |
| 6104156 |
Device for controlling the stopping of a motorized shrouding product |
Aug. 15, 2000 |
| 6094021 |
Motor drive apparatus |
Jul. 25, 2000 |
| 6009362 |
Anomalous condition detecting apparatus for cooling motor fan |
Dec. 28, 1999 |
| 5977742 |
Electric vehicle control device |
Nov. 2, 1999 |
| 5959817 |
Control device for operating a wiper motor |
Sep. 28, 1999 |
| 5929576 |
Protection apparatus for brushless motor |
Jul. 27, 1999 |
| 5870266 |
Bridge control circuit and method |
Feb. 9, 1999 |
| 5808441 |
Microprocessor based motor control system with phase difference detection |
Sep. 15, 1998 |
| 5757151 |
DC pump drive module |
May. 26, 1998 |
| 5703451 |
Motor driving circuit |
Dec. 30, 1997 |
| 5604653 |
Protection component for a three-phase alternator used in automobile vehicles |
Feb. 18, 1997 |
| 5596471 |
Adjustable undervoltage trip fault interrupt circuit |
Jan. 21, 1997 |
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