| |
 |
|
Class Information
Number: 363/34
Name: Electric power conversion systems > Current conversion > Including an a.c.-d.c.-a.c. converter
Description: Subject matter including a first stage with means to change alternating current to intermediate direct current, and a further second stage with means to change the intermediate direct current to alternating current.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622816 |
Power control interface and energy storage between a wind farm and a power transmission system |
Nov. 24, 2009 |
| 7622886 |
Method for determination of the risk to disturbance-free operation of a frequency converter |
Nov. 24, 2009 |
| 7619905 |
Method of controlling connection of a supply of AC power to a load and to a power supply grid |
Nov. 17, 2009 |
| 7619906 |
System for precharging a DC link in a variable speed drive |
Nov. 17, 2009 |
| 7613018 |
Apparatus and method for supplying DC power source |
Nov. 3, 2009 |
| 7612514 |
Architecture and a multiple function power converter for aircraft |
Nov. 3, 2009 |
| 7609022 |
Power supply system for vehicle with improved energy efficiency and vehicle including the same |
Oct. 27, 2009 |
| 7599200 |
Electric power converter |
Oct. 6, 2009 |
| 7567446 |
Power conversion apparatus including a rectifier circuit and an inverter circuit |
Jul. 28, 2009 |
| 7564703 |
Method and apparatus for synchronized parallel operation of PWM inverters with limited circulating current |
Jul. 21, 2009 |
| 7565459 |
Combination I/O modules in a modular automation controller |
Jul. 21, 2009 |
| 7564706 |
Power factor corrected single-phase AC-DC power converter using natural modulation |
Jul. 21, 2009 |
| 7561451 |
Power converter apparatus and methods using a phase reference derived from a DC bus voltage |
Jul. 14, 2009 |
| 7558085 |
Power converter with an adjustable output cable |
Jul. 7, 2009 |
| 7558086 |
Inverter control circuit with a resonant frequency modulation function |
Jul. 7, 2009 |
| 7535738 |
Method and apparatus including multi-drive configurations for medium voltage loads |
May. 19, 2009 |
| 7532491 |
Apparatus and method for supplying DC power source |
May. 12, 2009 |
| 7532490 |
Converter topology and methods for interfacing an electrical machine to electrical power grid |
May. 12, 2009 |
| 7518890 |
AC/DC/AC converter with reduced inductance in the DC filter capacitors |
Apr. 14, 2009 |
| 7511446 |
System and method for starting a wound rotor motor |
Mar. 31, 2009 |
| 7512422 |
RF generator with commutation inductor |
Mar. 31, 2009 |
| 7505291 |
AC/DC converter capable of actively restraining an inrush current |
Mar. 17, 2009 |
| 7502233 |
DC power supply using either AC or DC input for both |
Mar. 10, 2009 |
| 7495410 |
Systems and methods for improved motor drive power factor control |
Feb. 24, 2009 |
| 7495936 |
Three-phase voltage-fed AC/DC converter |
Feb. 24, 2009 |
| 7490015 |
Method for controlling/regulating a physical quantity of a dynamic system, in particular a micromechanical sensor |
Feb. 10, 2009 |
| 7477530 |
Frequency converting apparatus and control method for the apparatus |
Jan. 13, 2009 |
| 7471525 |
Converter and power converter that becomes it with the converter |
Dec. 30, 2008 |
| 7453895 |
Outlet with analog signal adapter, a method for use thereof and a network using said outlet |
Nov. 18, 2008 |
| 7450401 |
Bidirectional DC/AC inverter |
Nov. 11, 2008 |
| 7443125 |
Power conversion apparatus |
Oct. 28, 2008 |
| 7436842 |
Outlet with analog signal adapter, a method for use thereof and a network using said outlet |
Oct. 14, 2008 |
| 7436147 |
Motor driving apparatus |
Oct. 14, 2008 |
| 7432611 |
Power control interface between a wind farm and a power transmission system |
Oct. 7, 2008 |
| 7430132 |
Medium voltage inverter system |
Sep. 30, 2008 |
| 7425806 |
System and method for controlling a variable speed drive |
Sep. 16, 2008 |
| 7403403 |
Noise suppressor |
Jul. 22, 2008 |
| 7394672 |
Drive system for a vehicle moving along a trackway, particularly a magnetic levitation train |
Jul. 1, 2008 |
| 7391132 |
Methods and apparatus providing double conversion/series-parallel hybrid operation in uninterruptible power supplies |
Jun. 24, 2008 |
| 7352597 |
Comprehensive power quality controller for substation in power system |
Apr. 1, 2008 |
| 7345431 |
Circuit structure for driving a plurality of cold cathode flourescent lamps |
Mar. 18, 2008 |
| 7336509 |
Method and apparatus for estimating line inductance for PWM rectifier control |
Feb. 26, 2008 |
| 7336052 |
Device for powering a variable speed drive |
Feb. 26, 2008 |
| 7319600 |
Apparatus for supplying power and liquid crystal display having the same |
Jan. 15, 2008 |
| 7301787 |
Active type harmonic suppression apparatus |
Nov. 27, 2007 |
| 7294989 |
Frequency converter overvoltage protection |
Nov. 13, 2007 |
| 7259476 |
DC and AC uninterruptible power supply |
Aug. 21, 2007 |
| 7242147 |
Current sharing scheme for multiple CCF lamp operation |
Jul. 10, 2007 |
| 7239257 |
Hardware efficient digital control loop architecture for a power converter |
Jul. 3, 2007 |
| 7227331 |
Safety interlock and protection circuit for permanent magnet motor drive |
Jun. 5, 2007 |
|
|
|
