大学物理实验
大學物理實驗
대학물리실험
PHYSICAL EXPERIMENT OF COLLEGE
2013年
3期
18-19
,共2页
串联型晶体管直流稳压电源%限流型%截流型%过载保护
串聯型晶體管直流穩壓電源%限流型%截流型%過載保護
천련형정체관직류은압전원%한류형%절류형%과재보호
series transistor DC regulated power supply%a current-limiting%closure%overload protection
串联型晶体管直流稳压电源在稳压部分的过载保护分限流型和截流型两种保护电路，这两种过载保护电路都有各自的缺点，并且都是加在稳压部分。在实验课教学中采取了另外一种过载保护电路，即在桥式整流与滤波器之间加一个220欧姆的分流电阻，对电路进行过载保护，采用这种分流式过载保护电路原理简单，使用方便。几年来，使用效果甚佳。
串聯型晶體管直流穩壓電源在穩壓部分的過載保護分限流型和截流型兩種保護電路，這兩種過載保護電路都有各自的缺點，併且都是加在穩壓部分。在實驗課教學中採取瞭另外一種過載保護電路，即在橋式整流與濾波器之間加一箇220歐姆的分流電阻，對電路進行過載保護，採用這種分流式過載保護電路原理簡單，使用方便。幾年來，使用效果甚佳。
천련형정체관직류은압전원재은압부분적과재보호분한류형화절류형량충보호전로，저량충과재보호전로도유각자적결점，병차도시가재은압부분。재실험과교학중채취료령외일충과재보호전로，즉재교식정류여려파기지간가일개220구모적분류전조，대전로진행과재보호，채용저충분류식과재보호전로원리간단，사용방편。궤년래，사용효과심가。
The series transistor DC regulated power supply has two protection circuit of current-limit-ing and closure in the overload protection of voltage part,these two kinds of overload protection circuit all have their own shortcomings,and are added to the voltage part.Another kind of overload protection circuit is taken in the experimental teaching,a 220Ωshunt resistance is added between bridge rectifier and filter for overload protection circuit,the principle of this method is simple and easy to use.Re-cently,we always use this method,the effect is very good.
