CPC G01R 31/64 (2020.01) [G01R 27/2605 (2013.01); G01R 31/006 (2013.01)] | 20 Claims |
1. A method for measuring a capacitance value of a capacitor, the method comprising:
having a resistor coupled to a terminal of the capacitor;
measuring a difference in voltage at the terminal between a first time and a second time during a discharge routine of the capacitor, the discharge routine comprising sinking a current through a discharge circuit coupled to the resistor from the first time to the second time;
measuring an integration of a difference in voltage at terminals of the resistor during the discharge routine between the first time and the second time;
computing the capacitance value based on the measured difference in voltage, the measured integration, and an inverse of a resistance value of the resistor; and
determining a health of the capacitor based on a difference between the computed capacitance value and a threshold value.
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