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 and system for generating and displaying an interactive dynamic graph view of multiply connected objects
Taste receptors of the T1R family from domestic cat
Correlating trace data streams
Providing a web page to a client
Device and method for arranging vials
Temporary protective cover for an exposed junction box
Nickel-cobalt-manganese multi-element lithium ion battery cathode material with dopants and its methods of preparation
  Randomly Featured Patents
Selecting K in a data transmission carousel using (N,K) forward error correction
Circular-cylinder sieve
Chimney cleaner
Method for producing polyacetylene film
Enzymatic preparation of 3',4'-anhydrovinblastine
Versatile operatory light system
Compounds and methods for modulation of estrogen receptors
Automatic gauge control method and apparatus for tandem strip mills
Paint brush with asymmetric handle
Micro crossbar switch and on-die data network using the same