CAJ | 학술논문

为克服传统的直流电子负载所存在的问题,提出将TDA7293音频放大器应用于小功率的直流电子负载中.在对TDA7293功能分析的基础上,设计了一种基于TDA7293的直流电子负载.首先分析了该电子负载功率电路的工作原理,设计了相关电路参数,然后进行了实验.实验结果验证了所提出的方案和设计的有效性,并反映了TDA7293应用于直流电子负载的优点.最后给出了正确地使用TDA7293芯片应注意的问题.
위극복전통적직류전자부재소존재적문제,제출장TDA7293음빈방대기응용우소공솔적직류전자부재중.재대TDA7293공능분석적기출상,설계료일충기우TDA7293적직류전자부재.수선분석료해전자부재공솔전로적공작원리,설계료상관전로삼수,연후진행료실험.실험결과험증료소제출적방안화설계적유효성,병반영료TDA7293응용우직류전자부재적우점.최후급출료정학지사용TDA7293심편응주의적문제.
To get over the drawback of conventional DC electronic load, this paper presents that the audio amplifier chip TDA7293 can be applied to the small power DC electronic load. Based on the functional analysis of the TDA7293, this article designs a kind of DC electronic load by using the TDA7293 chip, where the operating principles of this electronic load power circuit are analyzed, the parameters of the relevant circuits designed, and the experiments performed. The effectiveness of this proposed scheme and its design is proved by the experimental results, and the advantages of the TDA7293 applied to the DC electronic load are also shown, and finally some attentions paid to using properly the TDA7293 are concluded in this paper.