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一般称为稳压器的仪器都是指输入电压在一定范围内波动时,能保持输出电压在有无负载或负载在一定范围内变化能稳定的装置。实际上,许多仪器上配用的稳压器只对某一固定负载供电,因此只要这一固定负载的供电能保持稳定即满足了要求(负载变了或坏了,输出电压为何值,无关紧要)。我们称这种稳压器为《定点稳压器》,它只对指定的负载有效。显然,定点稳压器可比一般稳压器的线路大大简化,成本明显降低。国外用于测微光度计的稳压电源主要有两种:即晶体管稳压式稳压器(苏联《工厂实验室》杂志1975年11期1345-1346页)和磁饱和式稳压器(东德的MK12/4型稳压器)。这类稳压器的稳压效果较好,但都是按一般稳压器的要求设计的,即负载在一定范围内变
Generally refers to the regulator of the instrument refers to the input voltage fluctuations in a certain range, the output voltage can be maintained with or without load in a certain range of changes in the stability of the device. In fact, regulators used on many instruments only supply power to a fixed load, so that the load is stable as long as the load is stable (the load is changed or broken, and the output voltage is of no consequence ). We call this regulator “fixed-point regulator”, it is only valid for the specified load. Obviously, the fixed-point regulator than the general regulator circuit greatly simplified, the cost is significantly reduced. There are two main types of regulated power supplies used in micrometer luminaries abroad: Transistor Regulator (Soviet Union Laboratory Journal, 1975, pp. 1345-1346) and Magnetic Saturation Regulator German MK12 / 4 regulator). Regulators of this regulator better, but are designed according to the requirements of the general regulator, that is, the load changes within a certain range