US 12,113,428 B2
Regulator circuit
Youzhong Liu, Tianjin (CN); Yanzhao Wang, Tianjin (CN); Yanjun Li, Tianjin (CN); and Yixuan Ma, Tianjin (CN)
Assigned to Renesas Design (UK) Limited, Bourne End (GB)
Appl. No. 18/688,631
Filed by Renesas Design (UK) Limited, Bourne End (GB)
PCT Filed Dec. 6, 2022, PCT No. PCT/CN2022/136769
§ 371(c)(1), (2) Date Mar. 1, 2024,
PCT Pub. No. WO2024/119349, PCT Pub. Date Jun. 13, 2024.
Prior Publication US 2024/0275260 A1, Aug. 15, 2024
Int. Cl. H02M 1/00 (2007.01); H02M 3/158 (2006.01)
CPC H02M 1/0019 (2021.05) [H02M 1/0045 (2021.05); H02M 3/158 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A regulator circuit comprising
a regulation switch having a first terminal coupled to a current source, a second terminal connectable to a load, and a control terminal;
a voltage comparator comprising a predetermined offset voltage, the voltage comparator being adapted to compare a sum voltage of the offset voltage added to a voltage at the second terminal with a control voltage at the control terminal, and to generate a comparison signal; and
an adjuster adapted to adjust the voltage at the second terminal based on the comparison signal to control a difference voltage between the control terminal and the second terminal of the regulation switch and to maintain the regulation switch operating in a desired region of operation.