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Ӱյ
ɵ¿Ƽ   2018-07-04 08:45:52 :SystemMaster Դ:ɵ ִС:[][][С]

Ӱյ

1.ͨPLCCQFPһƬ״ԪҪ󣬺ӴԪͱСԪЩ
2.ڻ¯дʹܶʹͲƷлͬʱҲΪһɢϵͳڼȲֵıԵɢͬԵһ¶ƫͣ¯ڳ¶Ҫͬ⣬ͬһ¶Ҳ졣
3.ƷװͬӰ졣¶ߵĵҪڿأؼͬܵõõظԡӶΪ LF=L/(L+S);L=װijȣS=װļҪõظԺõĽѡͨ¯ӵķΧΪ0.5~0.9ҪݲƷԪܶȡͬ壩¯IJͬͺҪõõĺЧظԣʵҪġ

ӹĿ

(1) ӡ(·Ϊӡˢ+Ƭ+)ĿǼۻ࣬Ż򺸶ͨڵPCBĺ̽кӣԽеӡ
(2)ӡ/㽺壨·ΪSMTӡˢ/SMTͿ+Ƭ+ĿǼȹ̻SMTײ̻ͨSMTpcbӦλýճ̶


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