设计温度控制器的一般要求是: (1) 控制温度的精度要高——也就是说.电路要有非常高的直流增益,因而,为了能得到所需要的加热器功率的变化范围,要求误差接近于零; (2) 动态响应特性要宽——以使电路能对变化的环境条件具有快的响应,而这种环境条件的变化,多少会提出一些加热要求; (3) 由于大多数热负载的特性,使得热路惯性要激增,因此,必须保证系统在所要求的温度附近不产生振荡。但是,通常这第三条要求是最难实现的。 The general requirements for designing a temperature controller are: (1) To control the accuracy of the temperature - that is, to have a very high DC gain of the circuit, so that in order to achieve the desired range of heater power variation, Close to zero; (2) the dynamic response should be wide-so that the circuit can respond quickly to changing environmental conditions, and the change in environmental conditions will somewhat raise some heating requirements; (3) since most of the heat The characteristics of the load, so hot inertia to surge, therefore, must ensure that the system in the vicinity of the required temperature does not produce oscillation. However, usually the third requirement is the most difficult to achieve.