US 12,322,948 B2
Over current protection circuit and over current protection method thereof
Yu-Chin Tsai, New Taipei (TW); Qi-Sheng Shi, New Taipei (TW); and Kai-Sheng Chen, New Taipei (TW)
Assigned to Wiwynn Corporation, New Taipei (TW)
Filed by Wiwynn Corporation, New Taipei (TW)
Filed on Dec. 13, 2023, as Appl. No. 18/539,225.
Claims priority of application No. 112115803 (TW), filed on Apr. 27, 2023.
Prior Publication US 2024/0364092 A1, Oct. 31, 2024
Int. Cl. H02H 1/00 (2006.01); H02H 7/00 (2006.01)
CPC H02H 1/0092 (2013.01) [H02H 7/008 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An over current protection method, comprising:
generating a reference current curve;
detecting an operation current of an electronic device;
calculating a first average slope of the reference current curve and a second average slope of a variation curve of the operation current; and
determining whether to activate an over current protection mechanism by comparing the first average slope and the second average slope.