一种实用可调直流稳压电源电路的设计

A practical design of adjustable DC regulated power supply circuit

给出了一种利用三端可调式稳压器LM338K实现输出电压为0-18V可调的直流稳压电源电路。电压补偿电路的设计弥补了LM338K不能从0V起调的问题。经实际测试,该电路输出电压稳定,输出电流大,带负载能力强。电路结构简单,可在电子设计及控制领域中广泛使用。

A kind of DC regulated power circuits is given in this paper, three-terminal adjustable voltage regulators LM338 K is mainly used to realize output adjustable continuously from 0V to 18 V in the circuits. The design of voltage compensating circuit makes up for the problem that LM338 k can not adjust from 0V. The output voltage of the circuits is stable, the output current is large, and the load capacity is strong by practical testing. The structure of the circuits is simple, and the circuits can be used widely in electronic design and control field.