US 12,294,302 B2
Regulator circuit, corresponding system and method
Salvatore Tumminaro, Marianopoli (IT); Alfio Pasqua, Piedimonte Etneo (IT); and Marco Sammartano, Petrosino (IT)
Assigned to STMICROELECTRONICS S.r.l., Agrate Brianza (IT)
Filed by STMICROELECTRONICS S.r.l., Agrate Brianza (IT)
Filed on Aug. 30, 2023, as Appl. No. 18/458,940.
Application 18/458,940 is a continuation of application No. 17/588,065, filed on Jan. 28, 2022, granted, now 11,791,728.
Claims priority of application No. 102021000002798 (IT), filed on Feb. 9, 2021.
Prior Publication US 2023/0412080 A1, Dec. 21, 2023
Int. Cl. H02M 3/158 (2006.01); G05F 1/44 (2006.01)
CPC H02M 3/158 (2013.01) [G05F 1/44 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A circuit, comprising:
a high-voltage node;
low-voltage circuitry;
a first electronic switch having a current flow path, the first electronic switch configured to be coupled between the high-voltage node and the low-voltage circuitry;
a voltage-sensing node coupled to the high-voltage node;
a second electronic switch coupled between the voltage-sensing node and the first electronic switch;
a comparator coupled to the voltage-sensing node; and
a charge pump coupled to the current flow path of the first electronic switch.