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Class Information
Number: 363/39
Name: Electric power conversion systems > Current conversion > With means to introduce or eliminate frequency components
Description: Subject matter wherein the system includes means for introducing a desired harmonic frequency into the system or filtering an undesired frequency component from the system.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7606051 |
Fully clamped coupled inductors in power conversion circuits |
Oct. 20, 2009 |
| 7596006 |
Reducing output ripple from a switched mode power converter |
Sep. 29, 2009 |
| RE40907 |
Ripple cancellation circuit for ultra-low-noise power supplies |
Sep. 8, 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 |
| 7560982 |
Apparatus for reducing apparent capacitance in high frequency filter for power line |
Jul. 14, 2009 |
| 7545656 |
Common mode noise reduction circuit utilizing dual primary windings |
Jun. 9, 2009 |
| 7538535 |
Error voltage ripple compensation to extend bandwidth of a feedback loop in a DC-to-DC converter |
May. 26, 2009 |
| 7535303 |
Active LC filter damping circuit with galvanic isolation |
May. 19, 2009 |
| 7525825 |
Snap in high power, high current connector with integrated EMI filtering |
Apr. 28, 2009 |
| 7511384 |
DC conversion system |
Mar. 31, 2009 |
| 7508174 |
Anti-ringing switching regulator and control method therefor |
Mar. 24, 2009 |
| 7508689 |
Inverter and a drive system using the inverter |
Mar. 24, 2009 |
| 7502237 |
Power waveform harmonic analysis using summed samples |
Mar. 10, 2009 |
| 7495940 |
Method and device for producing rectifier gating signals using a peak detector |
Feb. 24, 2009 |
| 7489529 |
Control circuit having frequency modulation to reduce EMI of power converters |
Feb. 10, 2009 |
| 7466570 |
Islanding detection method |
Dec. 16, 2008 |
| 7456621 |
Digital controller based power factor correction circuit |
Nov. 25, 2008 |
| 7453224 |
Sensing mechanical transitions from current of motor driving hydraulic pump or other mechanism |
Nov. 18, 2008 |
| 7428158 |
System and method for reducing harmonic effects on a power delivery system |
Sep. 23, 2008 |
| 7423494 |
Apparatus and method for a spread-spectrum oscillator for magnetic switched power converters |
Sep. 9, 2008 |
| 7420824 |
Method of designing an RPWM inverter with unwanted harmonic elimination |
Sep. 2, 2008 |
| 7402983 |
Method for use of charge-transfer apparatus |
Jul. 22, 2008 |
| 7400126 |
DC regulated power supply having voltage correction |
Jul. 15, 2008 |
| 7397225 |
Apparatus for controlling the power of an AC voltage supplying an electrical consumer by phase control and method for reducing harmonics |
Jul. 8, 2008 |
| 7382112 |
Methods and devices for input waveform control in switching power supplies |
Jun. 3, 2008 |
| 7372709 |
Power conditioning system for energy sources |
May. 13, 2008 |
| 7365451 |
Power converter |
Apr. 29, 2008 |
| 7365998 |
Unregulated isolated DC/DC converter with ripple control |
Apr. 29, 2008 |
| 7356626 |
Method and device for signal protection |
Apr. 8, 2008 |
| 7355870 |
Switching mode power supply and method for outputting voltage therefrom |
Apr. 8, 2008 |
| 7342372 |
Method for power control of an electric motor |
Mar. 11, 2008 |
| 7324356 |
Common-mode current cancellation with digital pulses for isolated applications |
Jan. 29, 2008 |
| 7309968 |
Motor control circuit and associated full bridge switching arrangement |
Dec. 18, 2007 |
| 7301787 |
Active type harmonic suppression apparatus |
Nov. 27, 2007 |
| 7279665 |
Method for delivering harmonic inductive power |
Oct. 9, 2007 |
| 7274576 |
Power converter with reduced common mode voltage |
Sep. 25, 2007 |
| 7254046 |
DC-DC converter |
Aug. 7, 2007 |
| 7218531 |
Switching regulator with reduced conducted emissions |
May. 15, 2007 |
| 7206182 |
Negative ions generating circuit design with decreasing high frequency noise and apparatus thereof |
Apr. 17, 2007 |
| 7193869 |
Noise suppressor |
Mar. 20, 2007 |
| 7161323 |
Motor drive apparatus, electric actuator and electric power steering apparatus |
Jan. 9, 2007 |
| 7145784 |
DC power source apparatus |
Dec. 5, 2006 |
| 7142440 |
Ripple-current reduction for transformers |
Nov. 28, 2006 |
| 7142441 |
Method for using a programmable operating frequency for a DC-to-DC converter for use with embedded wireless products |
Nov. 28, 2006 |
| 7119607 |
Apparatus and method for resonance reduction |
Oct. 10, 2006 |
| 7106604 |
System and method for reducing transfer function ripple in a logarithmic RMS-to-DC converter |
Sep. 12, 2006 |
| 7103426 |
Anticipatory high frequency noise compensation in a distributed process control system |
Sep. 5, 2006 |
| 7099165 |
Network harmonic scrubber |
Aug. 29, 2006 |
| 7095636 |
Electromagnetic interference filter for an autotransformer |
Aug. 22, 2006 |
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