CAJ | 학술논문

目前开关电源市场上单端反激式的开关电源占有很大的份额，控制环路的设计是反激电源中关键的步骤之一。主要对基于L6561临界（TM）模式下高功率因数（PF）单端反激式开关电源的控制环路设计进行了论述，文中通过对环路中各级的传递函数进行了定性分析和定量计算，进而给出了环路的补偿电路。通过选择合适的相位裕量来保证系统的稳定性，并通过图解法验证了该环路可以使系统具有较好的稳定性。
목전개관전원시장상단단반격식적개관전원점유흔대적빈액，공제배로적설계시반격전원중관건적보취지일。주요대기우L6561림계（TM）모식하고공솔인수（PF）단단반격식개관전원적공제배로설계진행료논술，문중통과대배로중각급적전체함수진행료정성분석화정량계산，진이급출료배로적보상전로。통과선택합괄적상위유량래보증계통적은정성，병통과도해법험증료해배로가이사계통구유교호적은정성。
At present, the single-stage flyback switch power supply has shared a large percentage in today＇s market,the design of the control loop is one of the key steps in the design of the flyback switch power supply , this paper mainly discussed ： based on the L6561 control loop design of the single-stage flyback with high PF（power factor） switch power supply operated in the TM （transition mode）, in this paper, provides the transfer function of all levels in the loop and gives them the qualitative analysis and quantitative calculation, finally gives the compensation circuit of the loop. By selecting the right phase to ensure the stability of the system, and the test chart shows the loop can make the system has a good stability.