US 12,001,257 B2
Power management system with capacitor
Vincent Aubineau, Arêches (FR); Michael Andreas Staudenmaier, Munich (DE); and Pierre Juste, Montigny le Bretonneux (FR)
Assigned to NXP USA, Inc., Austin, TX (US)
Filed by NXP USA, Inc., Austin, TX (US)
Filed on Nov. 30, 2021, as Appl. No. 17/456,904.
Claims priority of application No. 21306375 (EP), filed on Oct. 1, 2021.
Prior Publication US 2023/0108091 A1, Apr. 6, 2023
Int. Cl. G11C 11/00 (2006.01); G06F 1/3203 (2019.01); H02M 3/07 (2006.01)
CPC G06F 1/3203 (2013.01) [H02M 3/07 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A power management system comprising:
a capacitor;
control logic configured to determine a wait time in response to a comparison of a voltage of the capacitor to a threshold voltage and to initiate a startup upon expiration of the wait time; and
a control circuit configured to charge the capacitor, discharge the capacitor, and provide the voltage of the capacitor to the control logic, wherein the control circuit includes a discharge circuit, a charge circuit, and a trigger circuit.