基于UC3842的30W升压电路设计

Based on the UC3842 30 W Boost Circuit Design

文章首先对UC3842芯片做了简单的介绍,描述了其在电路中的主要功能。然后对DC-DC直流Boost升压电路的充电过程和放电过程进行了详细介绍。再根据Boost电路基本公式设计了电路中的核心器件——电感,并利用RC振荡电路设定了开关频率以及电路电流和电压等参数。文中设计了电路原理图,并对电路原理图进行了简单介绍。最后给出了电路的测试结果。

This paper first introduces the UC3842＇s main function in the circuit. Then DC-DC boost circuit, sub-charging process and discharging process is described in detail. Then, according to the basic formula boost circuit design of the core components of the circuit-inductance, and an RC oscillator circuit to set the switching frequency, and the circuit current and voltage parameters. And designed a circuit diagram for a simple introduction. Finally, the circuit test results is given.