Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
PWM inverter










Image Number 11 for United States Patent #4656572.

A PWM inverter in which the maximum three-phase RMS pole-to-pole output voltage is increased, to more efficiently utilize a fixed DC power supply, by generating substantially sinusoidal changing pole voltages having no values within predetermined zones adjacent to each power supply limit, and by switching each pole voltage to a power supply limit for a predetermined number of electrical degrees during each half cycle, resulting in step changes in the pole voltage waveforms from the substantially sinusoidal changing waveform to a fixed power supply limit.








 
 
  Recently Added Patents
Hook
Methods and systems for dynamic spectrum arbitrage
Display screen with graphical user interface
Soybean cultivar BY0811143
Chemically bonded carbon nanotube-polymer hybrid and nanocomposite thereof
Treatment of influenza
Potential separation for filling level radar
  Randomly Featured Patents
Method for automatically transmitting greeting message from receiving telephone in an automatic answering system
Substituted pyrazolo[3,4-d]pyrimidines as ACK-1 and LCK inhibitors
Fingernail hardening treatment
Agarofuan derivatives, their preparation, pharmaceutical composition containing them and their use as medicine
Neural prosthesis
Bimorph electro optic light modulator
Furnace sound shield
Collar having end-side teeth for a drivable wheel hub
Transdermal injection appliance
Continual flow pin washer