CIRCUIT AND METHOD FOR MEASURING CAPACITANCE OF CAPACITOR

摘要

PURPOSE: A circuit and a method for measuring the capacitance of a capacitor are provided to measure accurate capacitance and AC characteristics of a capacitor. CONSTITUTION: A pulse generator(100) outputs a pulse signal. A delay unit(200) comprises a capacitor and outputs a delay signal by delaying the pulse signal through the capacitor. A comparator(250) receives the pulse signal and the delay signal and outputs a comparison signal based on the phase difference between the signals.