The HY-CTW White Noise Power Supply for Capacitor Testing is dedicated test equipment developed for film capacitors, electrolytic capacitors, ceramic capacitors and supercapacitors. It simulates real wideband random white noise interference conditions found in power grids, automotive circuits and switching power supply loops.

The unit superimposes adjustable-amplitude, bandwidth-controllable pure white noise onto the DC bias output loop to reproduce ripples and random electromagnetic disturbances that capacitors endure in actual service. It accurately evaluates capacitors’ noise endurance life, equivalent series resistance (ESR), temperature rise degradation and failure risks.