介绍了利用脉冲调宽时分割技术设计的可调直流基准源的原理和方法，并给出了硬件电路和程序设计。
The paper introduces the design method of adjustable DC reference based on PWM and time-division, it gives hardware and software design.
从分析典型的能隙基准电路的一般原理入手，重点讨论了一种输出可调节的CMOS能隙基准电路的设计。
Starting from analyzing the general principle of typical bandgap reference circuit, the design of a CMOS bandgap reference circuit with adjustable output is discussed.
通过分析可知，只要晶振频率足够高，生成的基准信号就有足够高的精度，而且信号的参量具有良好的可调节性。
Analysis result shows that the reference signal can be highly precise and provide an adjustable performance if the given frequency of crystal is high enough.
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