图1是有源R振荡器准确地把温度量转换成时间量的简略布局。大多数设计人员把这些类型的振荡器用于对波形和频率稳定度要求不太严格的低级振荡器。然而,三相对称有源R振荡器实际上可以产生一种极其优良的三角形波形。在这种情况下,振荡器变成张驰发生器,其中输入级的恒定偏流呈周期性变化,并且使运算放大器的补偿电容器放电。 Figure 1 is a simplified layout of an active R oscillator that accurately transforms the amount of temperature into an amount of time. Most designers use these types of oscillators for low-level oscillators that have less stringent waveform and frequency stability requirements. However, a three-phase symmetric active R oscillator can actually produce an extremely good triangular waveform. In this case, the oscillator becomes a relaxation generator where the constant bias current at the input stage changes periodically and the op-amp compensation capacitor is discharged.