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
Processor engine, integrated circuit and method therefor
Information processing apparatus capable of authentication processing with improved user convenience, control program for information processing apparatus, and recording medium having control
Uni-directional transient voltage suppressor (TVS)
Extensible, filtered lists for mobile device user interface
Message value indicator
Method for adapting a contact point of a clutch in a drivetrain of a motor vehicle
Method and apparatus for soft information transfer between constituent processor circuits in a soft-value processing apparatus
  Randomly Featured Patents
Method of directing communication between addressable targets using a generalized pointing device
Methods and compositions involving polyhydroxylated polyiodo non-ionic contrast media
Method and system for processing customized reward offers
Image display apparatus that allows viewing of three-dimensional image from directions
Rocker arm having wear resistant scuffing resistant portion
Wireless local area network antenna array
Combined automatic and manual hydraulic control for motor grader blade
Structural reinforcement system having modular segmented characteristics
Wax applicator buffer
Method for determining a surface contact force