CAJ | 학술논문

研究了一种常用的恒流源电路的输出动态特性。研究发现：在负载及输出电流值不变的情况下，影响恒流源动态性能的主要因素是误差放大器积分电容的容值、反馈放大器的放大倍数等；在电路参数固定的情况下，在一定的输出电流范围内，影响系统动态性能的主要因素是负载阻值，而电流值影响很小。最后，根据实际电路设计指标，提出了改善系统动态性能的解决方案，仿真及实际电路测试证明了结论的正确性。
연구료일충상용적항류원전로적수출동태특성。연구발현：재부재급수출전류치불변적정황하，영향항류원동태성능적주요인소시오차방대기적분전용적용치、반궤방대기적방대배수등；재전로삼수고정적정황하，재일정적수출전류범위내，영향계통동태성능적주요인소시부재조치，이전류치영향흔소。최후，근거실제전로설계지표，제출료개선계통동태성능적해결방안，방진급실제전로측시증명료결론적정학성。
In this paper,the output dynamic performance of a voltage controlled constant current source based on the wide used model is researched.It is found that the main factors are integral capacitor and feedback amplification when the load resistor and output current is not changed;the main factor is the value of load resistor when the output current is in a certain range,while the current affection is very small.So the main factors are integral capacitor,feedback amplification and the load resistor.Finally,based on the design requirement of practical circuits,a solution is put forward that makes the dynamic performance better,and it proves the correctness of the conclusion by the simulation and test results of the practical circuit.