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Class Information
Number: 363/55
Name: Electric power conversion systems > Current conversion > Including automatic or integral protection means > For inverters
Description: Subject matter wherein the system for which protection is provided is a D.C. to A.C. converter.

Sub-classes under this class:

Class Number Class Name Patents
363/57 Thyristor inverter 121
363/56.01 Transistor inverter 203

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8687393 Power converter module Apr. 1, 2014
8655460 Method for operating a drive control device and drive control device operating according to the method Feb. 18, 2014
8624538 Motor driving apparatus having function of dynamically switching converter operation mode of AC/DC converter Jan. 7, 2014
8611113 Fault protection in voltage source converters with redundant switching cells via mechanical switches being closed pyrotechnically Dec. 17, 2013
8611114 Redundant control method for a polyphase converter with distributed energy stores Dec. 17, 2013
8587248 Method for controlling a polyphase converter with distributed energy stores at low output frequencies Nov. 19, 2013
8575885 Motor drive system, control method of motor drive system, and traveling device Nov. 5, 2013
8559201 Grid-connected inverter Oct. 15, 2013
8542506 Method and apparatus for controlling the power of a transformer using a soft start circuit Sep. 24, 2013
8537578 Redundant control method for a polyphase converter with distributed energy stores Sep. 17, 2013
8508957 Power conversion device for converting DC power to AC power Aug. 13, 2013
8497687 Method and apparatus for monitoring electrical ground isolation in a powertrain system Jul. 30, 2013
8482245 Power conversion device Jul. 9, 2013
8476862 Power supply controller Jul. 2, 2013
8467205 Methods, systems, and software for controlling a power converter during low (zero)-voltage ride-through conditions Jun. 18, 2013
8446744 Method for controlling a switching device of a resonant power converter, especially in order to provide a required power, especially for an X-ray generator May. 21, 2013
8422260 Arrangement for voltage conversion Apr. 16, 2013
8391034 Power supply module with filtering circuit and power supply module assembly Mar. 5, 2013
8354807 Anti-noise method for sensorless-brushless direct current motor system Jan. 15, 2013
8289736 Conversion of AC lines to HVDC lines Oct. 16, 2012
8284575 Drive system for power switching elements Oct. 9, 2012
8279644 Method and system for providing maximum power point tracking in an energy generating system Oct. 2, 2012
8269451 Power conversion device Sep. 18, 2012
8223465 Surge current detection in a switch by detecting change in a duty cycle Jul. 17, 2012
8208276 Power conversion device Jun. 26, 2012
8179066 Method for controlling a load with a predominantly inductive character and a device applying such a method May. 15, 2012
8120306 Voltage source inverter with a voltage offset Feb. 21, 2012
8069000 Aging status diagnostic apparatus for power conversion system, and method thereof Nov. 29, 2011
8045301 Motor drive device Oct. 25, 2011
8036004 Uninterruptible power supply with total isolation Oct. 11, 2011
8036005 Switching apparatus for grounding an inverter Oct. 11, 2011
8026639 Scheme for operation of step wave power converter Sep. 27, 2011
8008886 Power converter Aug. 30, 2011
7990098 Series-coupled two-motor drive using double-ended inverter system Aug. 2, 2011
7978487 Switching power supply and over-temperature protection method Jul. 12, 2011
7906933 Apparatus and method for driving an induction motor Mar. 15, 2011
7881078 Twelve-pulse HVDC transmission Feb. 1, 2011
7868595 Apparatus and method for soft-start mode transition in a switching regulator Jan. 11, 2011
7843710 Apparatus and method for controlling power converter Nov. 30, 2010
7839665 System interconnection inverter including overvoltage and negative voltage protection Nov. 23, 2010
7808125 Scheme for operation of step wave power converter Oct. 5, 2010
7782640 Inverter circuit and backlight unit having the same Aug. 24, 2010
7751207 Power semiconductor module with reduced parasitic inductance Jul. 6, 2010
7733048 Method and arrangement in connection with motor fed with frequency converter provided with intermediate voltage circuit Jun. 8, 2010
7733616 Abnormality detecting device of electric power converting device and abnormality detecting method Jun. 8, 2010
7724550 Organic rectifier May. 25, 2010
7706157 Systems and methods involving balancing currents for thyristors Apr. 27, 2010
7667990 Architecture for switching on and off power Feb. 23, 2010
7649724 Protective circuit for a converter Jan. 19, 2010
7646619 Apparatus and method for controlling power converter Jan. 12, 2010

1 2 3 4

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