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Class Information
Number: 363/46
Name: Electric power conversion systems > Current conversion > With means to introduce or eliminate frequency components > In rectifier systems > Including means for reducing ripples from the output > With ripple responsive, automatic control
Description: Subject matter wherein the means provided are responsive to the D.C. ripple on the output line, and the means include circuitry for reducing the magnitude of the sensed ripple.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| RE40907 |
Ripple cancellation circuit for ultra-low-noise power supplies |
Sep. 8, 2009 |
| 7529106 |
Voltage monitoring device and inverter device |
May. 5, 2009 |
| 7511973 |
Constant current mode ripple attenuation method in flyback power supply |
Mar. 31, 2009 |
| 7495939 |
Ripple filter circuit |
Feb. 24, 2009 |
| 7483280 |
Capacitive power supply circuit and method |
Jan. 27, 2009 |
| 7382112 |
Methods and devices for input waveform control in switching power supplies |
Jun. 3, 2008 |
| 7365998 |
Unregulated isolated DC/DC converter with ripple control |
Apr. 29, 2008 |
| 7355865 |
Method and apparatus for rejecting the second harmonic current in an active converter with an unbalanced AC line voltage source |
Apr. 8, 2008 |
| 7289341 |
Power supply adaptive feedforward control circuit |
Oct. 30, 2007 |
| 7193397 |
Voltage converter |
Mar. 20, 2007 |
| 7142440 |
Ripple-current reduction for transformers |
Nov. 28, 2006 |
| 7123491 |
AC-DC converting device, and electrical apparatus provided with AC-DC converting function |
Oct. 17, 2006 |
| 7075274 |
Reactive power compensator |
Jul. 11, 2006 |
| 7038438 |
Controller for a power converter and a method of controlling a switch thereof |
May. 2, 2006 |
| 6980445 |
Power factor improving converter and control method thereof |
Dec. 27, 2005 |
| 6693805 |
Ripple cancellation circuit for ultra-low-noise power supplies |
Feb. 17, 2004 |
| 6650554 |
Power factor corrector with efficient ripple attenuator |
Nov. 18, 2003 |
| 6556460 |
Method for controlling a vehicle provided with an electric power converter |
Apr. 29, 2003 |
| 6489755 |
Active ripple and noise filter for telecommunication equipment powering |
Dec. 3, 2002 |
| 6465992 |
Preconditioner generating feedback signal having reduced ripple |
Oct. 15, 2002 |
| 6437997 |
Control device for electric power translating device |
Aug. 20, 2002 |
| 6307759 |
Control device for electric power translating device |
Oct. 23, 2001 |
| 6300740 |
Circuit for driving inductive loads |
Oct. 9, 2001 |
| 6278623 |
System and method for compensating for voltage notches in two-phase phase locked loops |
Aug. 21, 2001 |
| 6239992 |
Electric power unit with early auxiliary capacitor charging |
May. 29, 2001 |
| 6166931 |
Filter for a D. C. converter |
Dec. 26, 2000 |
| 6157554 |
Power unit |
Dec. 5, 2000 |
| 6154090 |
Method of and an active filter for reducing a residual ripple of a current drawn by a load from a network |
Nov. 28, 2000 |
| 6026126 |
Method and apparatus for reducing a ripple signal in an output of a direct current power supply |
Feb. 15, 2000 |
| 6026006 |
Integrated three-phase power converter and method of operation thereof |
Feb. 15, 2000 |
| 5963439 |
Device for limiting transient variations of a supply voltage |
Oct. 5, 1999 |
| 5946203 |
Switching network and method of reducing input current total harmonic distortion associated with a boost converter and a boost converter employing the switching network or method |
Aug. 31, 1999 |
| 5936855 |
Harmonic correction of 3-phase rectifiers and converters |
Aug. 10, 1999 |
| 5874829 |
Supply voltage processing circuit and a data carrier with a supply voltage processing unit |
Feb. 23, 1999 |
| 5808882 |
Three-phase bridge rectifier |
Sep. 15, 1998 |
| 5729652 |
System for controlling the speed of a motor driven by an unregulated voltage |
Mar. 17, 1998 |
| 5712774 |
Device for suppressing higher harmonic current of power source |
Jan. 27, 1998 |
| 5668708 |
DC power supply with reduced ripple |
Sep. 16, 1997 |
| 5668464 |
Feedforward active filter for output ripple cancellation in switching power converters |
Sep. 16, 1997 |
| 5663876 |
Circuit and method for achieving zero ripple current in the output of a converter |
Sep. 2, 1997 |
| 5600549 |
Power factor corrected electrical power converter |
Feb. 4, 1997 |
| 5555182 |
Source quality monitoring system |
Sep. 10, 1996 |
| 5532528 |
Converter including direct current detection |
Jul. 2, 1996 |
| 5528123 |
Power circuit |
Jun. 18, 1996 |
| 5515261 |
Power factor correction circuitry |
May. 7, 1996 |
| 5471378 |
AC to DC converter system with ripple feedback circuit |
Nov. 28, 1995 |
| 5450307 |
Switching power source apparatus |
Sep. 12, 1995 |
| 5406470 |
AC/DC converter |
Apr. 11, 1995 |
| 5353212 |
Zero-voltage switching power converter with ripple current cancellation |
Oct. 4, 1994 |
| 5349517 |
Active power line conditioner utilizing harmonic frequency injection for improved peak voltage regulation |
Sep. 20, 1994 |
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