一种双路输出DC/DC变换器小型化设计

Design of a Miniaturized Dual Output DC/DC Converter

目前,开关电源以小型、轻量和高效率等特点被广泛应用于几乎所有的电子设备,电源系统通常被称为"心脏系统",有着其他系统不可比拟的重要地位。随着科学技术的发展,各种用电装备系统对于电源的要求也越来越高,电源组件直接影响着装备系统的体积、重量和可靠性。文章以一个小型化隔离型双路输出DC/DC变换器作为设计实例,通过对实际电路的分析,详细说明其工作原理及主要器件的取值或计算方法。

Currently, the switch power supply to small, light weight and high efficiency characteristics are widely used in almost all electronic devices. Power systems are often referred to as ＂the heart of system＂ with other systems incomparable importance. With the development of science and technology, a variety of electrical equipment systems for the power supply are also increasing, power equipment system components directly affects the size, weight and reliability. In this paper, a miniaturized dual output isolated DC/DC converter as a design example, through the analysis of the actual circuit, a detailed description of its working principle and the main components of the value or calculation methods are also explainned.