CAJ | 학술논문

功率因数校正是开关电源设计中的一个重要问题，PFC以其外围电路简单，功率因数高而得到广泛使用，但PFC外围参数的设计是一个难点。针对此问题，提出一种确定外围参数的方法。通过理论分析控制器件内部结构、建立数学模型、Matlab仿真分析，从而在理论上完全掌握控制器件外围参数对系统控制性能的影响，避免在调试过程中出现太多的盲点。将此方法确定的参数应用于实际电路，只需经过简单调试，就可设计一款性能较好的高功率因数开关电源。
공솔인수교정시개관전원설계중적일개중요문제，PFC이기외위전로간단，공솔인수고이득도엄범사용，단PFC외위삼수적설계시일개난점。침대차문제，제출일충학정외위삼수적방법。통과이론분석공제기건내부결구、건립수학모형、Matlab방진분석，종이재이론상완전장악공제기건외위삼수대계통공제성능적영향，피면재조시과정중출현태다적맹점。장차방법학정적삼수응용우실제전로，지수경과간단조시，취가설계일관성능교호적고공솔인수개관전원。
Power factor correction(PFC)is an important issue in switching power supply design. PFC is widely used due to its simple peripheral circuits and high-power factor,but design of the PFC external parameters is difficult. To solve this prob-lem,a method to determine the external parameters is proposed. The internal structure of the control device is analyzed theoreti-cally,mathematical model is established and Matlab simulation analysis is performed,so as to fully grasp the influence of exter-nal parameters on the control performance of the system,and avoid too many blind spots in the debugging process. If the parame-ters determined with this method is apply to the actual circuit,a high-power factor switch power supply with high performance can be designed by means of a simple debugging.