US 12,295,080 B2
Fault diagnosis apparatus and method
Dongjie Cheng, Murphy, TX (US); Harish Raikar, Belagavi (IN); Arvind Patil, Hubballi (IN); and Akshay Panchamukhi, Hubballi (IN)
Assigned to Diodes Incorporated, Plano, TX (US)
Filed by Diodes Incorporated, Plano, TX (US)
Filed on Nov. 15, 2022, as Appl. No. 18/055,555.
Prior Publication US 2024/0163995 A1, May 16, 2024
Int. Cl. H05B 45/54 (2020.01); G01R 31/26 (2020.01); H05B 45/325 (2020.01)
CPC H05B 45/54 (2020.01) [G01R 31/2635 (2013.01); H05B 45/325 (2020.01)] 21 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a clamping circuit configured to provide a predetermined voltage at an output of the clamping circuit;
a clamping switch coupled to the output of the clamping circuit; and
a pass device connected between the clamping switch and an input/output terminal of a controller, wherein:
after the clamping switch is configured to be turned on, a current flows from the input/output terminal of the controller to the clamping circuit through the clamping switch.