CPES

CPES Patent: Switching Capacitor-PWM Power Converter


CPES has received a new patent on:

Switching Capacitor-PWM Power Converter
by Ming Xu, Ke Jin, Fred C. Lee
U.S. Patent: 8,331,110
Issued:  December 11, 2012


Patent Abstract:
Improved A power converter topology operates as a switching capacitor (capacitive voltage divider) converter during a first, preferably short portion of a switching cycle to provide excellent dynamic transient response, and as a pulse width modulated converter during a second portion of a switching cycle to provide flexibility of voltage regulation and generality of application. This topology can be made self-driven and is capable of zero voltage switching. Therefore, the power converter can be used as one of the plurality of branches of a multi-phase converter to enhance transient response. The respective branches can also be independently optimized for particular load levels and can be operated independently in a phase shedding manner to improve efficiency at low load. Further, the power converter or respective branches of a multi-phase power converter are compatible with non-linear control to further improve dynamic response.


This patent application has been sponsored by CPES IPPF (Intellectual Property Protection Fund) - a unique IP access mechanism that provides extraordinary IP advantage to CPES Principal Plus and Principal Members. 
 

(Return to CPES News Archive)