Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Power charging assembly and method that includes a low voltage electrical device operable with pulse width modulation (PWM) control










Image Number 9 for United States Patent #8129951.

A power charging assembly and methods are provided to provide a pre-charge low-current state, a steady-state, high-current charging state, and an unconnect state for an electrical load of an electrical propulsion system in a hybrid electrical vehicle (HEV). The power charging assembly includes a positive contactor device, a negative contactor device, and a non-contactor device means. The rate at which that electrical load is pre-charged may be effectively controlled by using a pulse-width modulated (PWM) signal received by the non-contactor device means. A current-only carrying positive or negative contactor may be configured with the non-contactor device means to further prevent electrical arcing of the contacts of the positive and the negative contactor during power charging assembly operation.








 
 
  Recently Added Patents
Method for providing interactive site map
Polypeptide microparticles
Mobility management in a communications system
Pose-variant face recognition using multiscale local descriptors
Aisle barrier
Adaptive known signal canceller
Temporal document trainer and method
  Randomly Featured Patents
Fuel supply system
Methods for making concentrated plasma and/or tissue sealant
Wagering game with multi-level progressive game
Paper feeder
Evaporator for liquid raw material and evaporation method therefor
Canister for surface mount electronic components
Method for controlled erasing memory devices, in particular analog and multi-level flash-EEPROM devices
Seat support assembly
Manufacturing a field oxide region for a semiconductor device
Bicycle