US Patent 11558012 Oscillator and method of driving the same

The present disclosure relates to an oscillator including a charge and discharge circuit which generates a first oscillation signal according to a clock signal using a first constant current and a second oscillation signal according to an inverted clock signal using a second constant current, an integrating circuit which generates a first comparison voltage reflecting an amount of change in the first oscillation signal based on a comparison reference voltage and a second comparison voltage reflecting an amount of change in the second oscillation signal based on the comparison reference voltage, and a comparison circuit which generates the clock signal and the inverted clock signal according to a result of comparison between the first oscillation signal and the first comparison voltage and a result of comparison between the second oscillation signal and the second comparison voltage.