Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Power conversion apparatus and method and automobile










Image Number 13 for United States Patent #7659689.

An apparatus and method for supplying a polyphase (AC) alternating current motor with driving voltages. A conversion unit is coupled to phases of the polyphase AC motor and includes a plurality of switching devices and includes, in at least one phase, a first switching device between a bus of an AC power supply and an output terminal, a second switching device between a bus of a direct current (DC) power supply and the output terminal, and a third switching device between a common bus for the AC power supply and the DC power supply and the output terminal. Driving voltages for the polyphase AC motor are generated by selecting a voltage from among voltages having potential values corresponding to the AC power supply and the DC power supply, and the selected voltage is used to operate a switch of the plurality of switching devices.








 
 
  Recently Added Patents
Manufacturing process for 8-aryloctanoic acids such as Aliskiren
Method and apparatus for maintaining a wireless local area network connection during a bluetooth inquiry phase or a bluetooth paging phase
Semiconductor device having metal gate and manufacturing method thereof
Selective seed layer treatment for feature plating
Toll-like receptor 5 ligands and methods of use
High voltage fault current limiter having immersed phase coils
Package management system
  Randomly Featured Patents
Connectors for a modular building set
Cover for a cervical pillow
Shampoo apparatus
Ski stick
Disposable food container
Decorative sock applique
Interleaver design with column skip for IEEE 802.11n standard
Polyamide resin composition and process for producing the same
Fluid flowmeter
Electric drive