US 7,501,718 B2
Voltage supply circuit and method for generating a supply voltage
Thomas Jean Ludovic Baglin, Rueil (France); Albert Missoni, Graz (Austria); and Gerhard Nebel, Immenstadt (Germany)
Assigned to Infineon Technologies AG, (Germany)
Filed on Jul. 12, 2005, as Appl. No. 11/181,032.
Application 11/181032 is a continuation of application No. PCT/EP2004/000173, filed on Jan. 13, 2004.
Claims priority of application No. 03000815 (EP), filed on Jan. 14, 2003.
Prior Publication US 2006/0001321 A1, Jan. 05, 2006
Int. Cl. H02J 1/10 (2006.01)
U.S. Cl. 307—43 23 Claims
OG exemplary drawing
 
1. A voltage supply circuit, comprising: a first supply voltage input which is connected to a first comparator and connected directly to a first voltage regulator, the first comparator controlling the first voltage regulator; a second supply voltage input which is connected to a second comparator and connected directly to a second voltage regulator, the second comparator controlling the second voltage regulator; and a supply voltage output which is connected to outputs of the two voltage regulators and is fed back to the two comparators.