基于AC—DC的连续可调直流稳压电源

Continuous adjustable DC voltage regulated power supply based on AC-DC

经过对直流可调稳压电源的分析,并在比较了两种稳压电源的优缺点后,我们选用设计了一种利用三端可调式稳压器LM338K实现输出电压为0~22V可调的直流稳压电源电路。并对所设计基于AC—DC的连续可调直流稳压电源的各个组成模块进行了原理分析,另外,为了使电压可以从0V开始调节,我们设计了电压补偿电路。输出电压为稳定在0V—22V。并且所设计电路结构简单,输出电压值在0V—22V之间可调,该范围适用范围广,在可在电子设计及控制领域中广泛使用。

Through the analysis of the adjustable dc regulated power supply, and compares the advantages and disadvantages of two kinds of regulated power supply in the later, we chose to use type was designed using a three-terminal voltage regulator LM338 K realize adjustable output voltage of 0 ~22 v dc regulated power supply circuit. And to design based on AC-DC adjustable DC regulated power supply of each module are analyzed in theory, in addition, in order to make the voltage can adjust from 0 v, we design the voltage compensation circuit. The output voltage is stable at 0 V-22 V.The designed circuit is simple in structure, and the output voltage is adjustable between 0 V and 22 V, which can be widely used in electronic design and control.