60W 逆变器设计摘 要 随着科学技术的进步，逆变技术得到了快速发展，逆变器是一种应用功率型的半导体器件，能够把直流电能转变成交流电能的一种变流设备，用于交流负载使用。因此，逆变技术在开发和运用的领域中有着十分重要的地位。本设计思路是针对车载逆变器，系统地阐述了车载逆变器技术的产生背景，发展现状、设计过程及广泛应用。该逆变器的核心控制电路采用了芯片TL494CN，并且在电路中使用了高频变压器，极大地减少了该逆变器的成本及体积，逐步提高了逆变器的性能。整个逆变电路将输入的 12V 的直流电通过两次变频转变成 220V/50Hz 的交流电后输出，并且具有输入/输出过压保护，以及过热保护等功能。关键词：车载逆变器; 高频变压器; TL494CNIIIAbstractWith the progress of science and technology, inverter technology has been rapid development. Inverter is a kind of application of power semiconductor devices, which can transform into a DC power converter equipment AC power for AC load use. Therefore, the inverter technology has a very important position in the field of development and application.This design is based on car inverter, systematically expounds the background of vehicle-mounted inverter technology, the current situation of the development, the design process and a wide range of applications. The core of the inverter control circuit adopted TL494CN chip, and the high frequency transformer is used in the circuit, greatly reduces the cost and volume of the inverter and gradually improve the performance of the inverter. The inverter circuit of the input 12 V DC by twice frequency conversion into 220 V / 50 Hz alternating current output, with the input/output overvoltage protection, and overheating protection function.Keywords: Vehicle-mounted inverter; High-frequency transformer; TL494CN目 录1 绪论.............................................................................................................................11.1 引言.........
