US 12,278,626 B2
Driver circuit for bypass power transistor including secondary supply input connection from a power delivery circuit
Andre Mourrier, Manosque (FR)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Aug. 11, 2023, as Appl. No. 18/448,255.
Prior Publication US 2025/0055453 A1, Feb. 13, 2025
Int. Cl. H02J 9/00 (2006.01); B60L 58/22 (2019.01); H02J 9/06 (2006.01); H03K 17/30 (2006.01); H03K 17/687 (2006.01)
CPC H03K 17/687 (2013.01) [B60L 58/22 (2019.02); H03K 17/302 (2013.01); B60L 2240/547 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A driver circuit configured to control one or more bypass power transistors, the driver circuit comprising:
a primary supply input connection configured to supply the driver circuit with power from a set of battery cells, wherein the set of battery cells is configured to supply power to a load via a power delivery circuit; and
one or more secondary supply input connections,
wherein the driver circuit is configured to:
receive information indicating whether an error condition is present in the power delivery circuit;
control, based on the error condition being present in the power delivery circuit, the one or more bypass power transistors to define a bypass current path between the one or more bypass power transistors and the load; and
receive, via a secondary supply input connection of the one or more secondary supply input connections, power from the bypass current path, wherein the power from the bypass current path exceeds a power threshold for controlling the one or more bypass power transistors to define the bypass current path.