US 12,222,404 B2
Current load circuit and chip for testing power supply circuit
Han-Chieh Hsieh, Hsinchu (TW)
Assigned to REALTEK SEMICONDUCTOR CORPORATION, Hsinchu (TW)
Filed by REALTEK SEMICONDUCTOR CORPORATION, Hsinchu (TW)
Filed on Jun. 15, 2022, as Appl. No. 17/840,826.
Prior Publication US 2023/0037496 A1, Feb. 9, 2023
Int. Cl. G01R 31/40 (2020.01); H03K 19/21 (2006.01)
CPC G01R 31/40 (2013.01) [H03K 19/21 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A current load circuit for testing a power supply circuit, comprising:
a control circuit, configured to generate a first reset signal according to a clock signal; and
a first load generation circuit, coupled to the control circuit and having a plurality of first load configurations, wherein the first load generation circuit is configured to alternately provide one of the plurality of first load configurations as a first current load of the first load generation circuit according to the clock signal and the first reset signal, and receive a first portion of a supply current provided by the power supply circuit according to the first current load to output an indication signal configured to indicate the performance of the power supply circuit.