US 12,316,207 B2
Dual output DC-DC boost converter with reduced output leakage
Aldo Vidoni, Rho (IT); Andrea Barbieri, Casalpusterlengo (IT); and Franco Consiglieri, Piacenza (IT)
Assigned to STMicroelectronics S.r.l., Agrate Brianza (IT)
Filed by STMicroelectronics S.r.l., Agrate Brianza (IT)
Filed on Dec. 23, 2021, as Appl. No. 17/560,977.
Prior Publication US 2023/0208294 A1, Jun. 29, 2023
Int. Cl. H02M 1/00 (2007.01); H02M 3/158 (2006.01)
CPC H02M 1/009 (2021.05) [H02M 1/0038 (2021.05); H02M 3/158 (2013.01); H02M 1/0043 (2021.05)] 25 Claims
OG exemplary drawing
 
1. A device comprising a DC-DC boost converter, wherein the DC-DC boost converter comprises:
an inductor coupled between an input voltage and an input node;
a first path coupled between the input node and a first output node at which a first output voltage is generated;
a second path coupled between the input node and a second output node at which a second output voltage is generated; and
a first switch selectively coupling the second path to the first path in response to a first control signal;
wherein the DC-DC boost converter is configured to:
operate in a first operating phase in which the first path boosts the first output voltage and in which the second path is kept from boosting the second output voltage by the first control signal being asserted to cause the first switch to couple the second path to the first path; and
operate in a second operating phase in which the second path boosts the second output voltage and in which the first path is kept from boosting the first output voltage.