关键词: 多谐振荡器, 迟滞比较器, 低电压, 低功耗

Abstract: A new type of multivibrator for solar cell power system is presented in the paper.The design adopts a novel structure of hysteresis comparator，which maintains a higher degree of frequency stability in a wide voltage range while realizing low voltage and low power consumption.The simulation of the circuit based on the 0.5 μm CMOS process is performed.According to the parameters of this design，when the supply voltage varies in the range of 1.5 V to 5 V，the oscillation frequency varies in the range of 3%/V and power consumption can be as low as 6.646 7 μW.The system works normally under low illumination.The result of the simulation shows that the multivibrator meets the requirements.

Key words: multivibrator, hysteresis comparator, low voltage, low power consumption