US 12,289,042 B2
Method and apparatus for stable battery-powered supply modules
Shengyuan Li, Irvine, CA (US); and Xicheng Jiang, Irvine, CA (US)
Assigned to Avago Technologies International Sales Pte. Limited, Singapore (SG)
Filed by Avago Technologies International Sales Pte. Limited, Singapore (SG)
Filed on Feb. 24, 2023, as Appl. No. 18/114,133.
Prior Publication US 2024/0291372 A1, Aug. 29, 2024
Int. Cl. H02M 3/157 (2006.01); H02M 1/00 (2006.01); H03K 7/06 (2006.01); H05B 45/335 (2020.01); H05B 45/34 (2020.01); H05B 45/345 (2020.01)
CPC H02M 1/0045 (2021.05) [H02M 3/157 (2013.01); H03K 7/06 (2013.01); H05B 45/335 (2020.01); H05B 45/34 (2020.01); H05B 45/345 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a circuit configured to receive an input voltage and provide an output voltage;
a first device coupled to the circuit and configured to:
receive a digitized input voltage and a digitized output voltage, and
determine, based on the digitized input voltage and the digitized output voltage, a first threshold level for the circuit to operate in a pulse frequency modulation (PFM) mode;
a second device coupled to the circuit and configured to:
receive the input voltage and the output voltage, and
determine a second threshold level for the circuit to operate in the PFM mode; and
a selector device coupled to the first device and the second device and configured to select one of the first threshold level or the second threshold level for the circuit.