Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2005-09-13
2005-09-13
Riley, Shawn (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C327S589000
Reexamination Certificate
active
06943536
ABSTRACT:
A switching power supply circuit is provided for capacitor charging, wherein a power device is coupled to a terminal node of a capacitor to be charged and has a control terminal coupled to the output of an associated drive circuit. This circuit includes a second power element being associated with the first power device, coupled to said terminal node, and provided with a control terminal which is connected directly to the output of respective drive logic. The second power element is driven to turn on when a voltage below a predetermined minimum is present at the capacitor, thereby pulling the voltage at the terminal node to ground and further charging the capacitor.
REFERENCES:
patent: 5705919 (1998-01-01), Wilcox
patent: 5959442 (1999-09-01), Hallberg et al.
patent: 6396251 (2002-05-01), Corva et al.
patent: 6489758 (2002-12-01), Moriconi et al.
Campo Vincenzo
Marino Filippo
Graybeal Jackson Haley LLP
Jorgenson Lisa K.
Riley Shawn
Santarelli Bryan A.
STMicroelectronics S.r.l.
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