弛张振荡器

采用CMOS工艺设计出应用在微硅电容加速度传感器单片测试电路中的弛张振荡器即是本文的主要研究目的。

This paper aims at designing a relaxation oscillator which is used in the readout circuits for silicon capacitive accelerometers with CMOS process .

一种用于SPIC的新型电流控制模式弛张振荡器

A Novel Current-Control-Mode Relaxation Oscillator for SPIC 's

最后对弛张振荡器进行了测试。

At last , we test the output of the oscillator .

提出了一种用于单片开关电源的新型电流控制模式弛张振荡器。

A novel current-control-mode relaxation oscillator for SPIC is presented .

利用该种方法，可以方便地提高弛张振荡器的温度性能，而没有增加它的成本以及面积消耗。

It can improve the temperature performance easily without increasing the cost and the consumption of the area .

电容传感器检测手指的存在，弛张振荡器用来检测电容传感器的电容值的变化。

Capacitive sensor tests the existence of human finger . Relaxation oscillator tests the capacitance variation of capacitive sensor .

在弛张振荡器的其它应用场合也同样可以使用该温度补偿方法来提高温度性能。

This method also can be used in other situation where the relaxation oscillator is applied to get better temperature performance .

脉冲宽度调制器和计数器用来测量弛张振荡器输出信号的周期，以确定传感器电容的变化值。

PWM and counter measure the period of relaxation oscillator output , by which the capacitance variation of sensor can be calculated .

针对传统弛张振荡器线性控制能力和频率抖动间的矛盾，对二者合理折中，通过对幅值控制电路电平检测速度的调整，在实现较高控制线性度的同时，抑制了频率失真。

Reasonable trade-offs are made for conflict between control linearity and timing jitter of the conventional relaxation oscillator . By adjusting the level detection speed of amplitude control circuits , excellent control linearity and restrained frequency distortion are realized .