电子工业专用设备
電子工業專用設備
전자공업전용설비
EQUIPMENT FOR ELECTRONIC PRODUCTS MANUFACTURING
2015年
4期
7-13
,共7页
开关电源%保护电路%欠压保护%过压保护%过温保护
開關電源%保護電路%欠壓保護%過壓保護%過溫保護
개관전원%보호전로%흠압보호%과압보호%과온보호
Switching power%Protection circuit%Under voltage protection%Over voltage protection%Over temperature protection
由于开关电源中控制电路比较复杂,晶体管和集成器件耐受电、热冲击的能力较差,为了使开关电源能在恶劣环境及突发故障状况下避开因超规格条件引起的故障,提出了可靠实用的保护电路,并分别对电路的工作原理进行了详尽介绍和分析;设计者可以根据自身电源选择保护形式,确保开关电源和负载在异常条件下不被损坏。
由于開關電源中控製電路比較複雜,晶體管和集成器件耐受電、熱遲擊的能力較差,為瞭使開關電源能在噁劣環境及突髮故障狀況下避開因超規格條件引起的故障,提齣瞭可靠實用的保護電路,併分彆對電路的工作原理進行瞭詳儘介紹和分析;設計者可以根據自身電源選擇保護形式,確保開關電源和負載在異常條件下不被損壞。
유우개관전원중공제전로비교복잡,정체관화집성기건내수전、열충격적능력교차,위료사개관전원능재악렬배경급돌발고장상황하피개인초규격조건인기적고장,제출료가고실용적보호전로,병분별대전로적공작원리진행료상진개소화분석;설계자가이근거자신전원선택보호형식,학보개관전원화부재재이상조건하불피손배。
B ecause the switching power supply control circuit is more complex,the ability of the transistor and the integrated device tolerance electricity,less heat shocks,in order to make the switching power supply can avoid the fault caused by ultra specification conditions in harsh environment and sudden failure,this paper puts forward protective circuit is reliable and practical, and were on the circuit principle of work in detail introduction and analysis. The designer can choose according to their own power supply formof protection,to ensure that the switch power supply and load under abnormalconditions are notdamaged.