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ĵǰλãҳ > ƷϢ > PicorԴ˲Դ > · - Cool-ORing™
äŮ72Сʱδɾ,ʿưٻ˭,иɻweb
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· - Cool-ORing™

14. ΪεԴʹлᵱػ¿ٲ?
Ans: һɵԴӦʹеԭԼȿǸ˲䳬ɹرԴʻ޸Ĺ;ڶߣ¶ȱʹԴ뱣״̬״ ٿɻָ

 

15.ϵͳ˵(GND)ʹ(FG)Ϊ㣬ԴƷǷ?
Ans:ƷΪʽʱǿԵģäŮ72Сʱδɾ,ʿưٻ˭,иɻwebƻһڰû⣬ҪEMI֮Ӱ졣

(2)

16. ʹʱϾȻеѹ?Ƿ˺?
Ans: EMIϵҪʹһPOWER SUPPLY˻ᾭһЩFG()ӣǴ󡣶IEC60950-1ҲȷĹ淶:Ϣ豸֮©3.5mAֻҪȷӵرɽ

 

17. ΪӦõijǷܽ͵ԴӦȵ
Ans: ԴӦڽɢȵIJݺͲֱӹϵͷȵŷͬʱҲɢⷽ潫ӰƷĿɿ⣬Ʒڰ֤ʱԷȵѡҲСŷ趨ıijЩƷķȣ涨貹ͰϣͨԺ󷽿ʹýСķȡäŮ72Сʱδɾ,ʿưٻ˭,иɻweb150WƷ¿ԲҪȣ150~500WƷзȺ޷ȲƷѡ;500WҪȡ

 

18. ԴӦһúʽãڲƷʹкҪעĵط
Ans: 󲿷Сڲ޷ȵĵԴӦDzɺʽΪϵͳʽõԴӦΪɢڽϸߵĻ¶ӦʽʹãοƷ˵ڵԴӦڲɢȷȵĻͣ䰲÷ʽΪʽʽ޲죬ӦõϵͳжǿɢȷṩԴӦʵɢȣ÷ʽҲ޲졣ExSP-150ƷߣһãʽӦû¶Ȳ5CǿɢȣȻɢȲ20%ʡ

 

19. ΪijЩڿȲת? Ans: ijЩƷ֮ɢȷϵ¶ȿƷ֮תEX:S-240ӳ֮ڲ¶δ趨֮¶ʱȻת

(3)

20. ʲôӿ˵(Inrush Current)? ʲôطҪע?
Ans: ʽԴӦԴ͵˲һ(1/2~1ԴڣEX:60HzԴ1/120~1/60)Ĵ(ƷԼΪ20~60AοƷ)Ʒָ֮룬äŮ72Сʱδɾ,ʿưٻ˭,иɻwebƴΪ󣬲ɵԴӦ𻵡ԵԴӦ/ػӦע⣬ʹǫ̈ԴӦͬʱ俪ʱпܻϵͳıѶ̨ԴӦӦһõԴƷңعܽвƷ/ػ

 

21. νPFC
Ans: PFCPower Factor CorrectionӽҪΪƵԴӦЧڹʵıֵһ㲻PFC·Ļͣ˵Ĺֻ0.4~0.6ʽPFC·Դ0.95ϣʽ£ ڹ = ѹ x VA Ч = ѹ x x ӣW ԻĹ۵㣺˾糧ڹʵĵܣ䷢ſȶг󣬶ܵʵʹЧʡΪ0.5ʾ鷢2VAܰȫ1WԴЧ֮ӸΪ0.95˾ֻҪ1.06VA1W⣬ԴЧϼѡ

 

22.ԴӦ˸ʾ-VCOMΪΣ
Ans: COM (COMMON) ָأƷʾ˵ +V-V أ+V1+V2COM

(4)

23.ԴӦ¼ACDC룬ΪΣ
Ans: ΪԴӦƷƼܹϵIJͬ¼ԴACDCࣺ a.85~264VAC120~370VDC b.176~264VAC250~370VDC c.85~132VAC176~264VAC by Switch250~370VDC ƷʾabԴΧʱͽֱԴӦⲿݻֱӵԴ(+)AC/L(-)AC/NԴӦܿݻAC/NAC/LܿߴֻDzäŮ72Сʱδɾ,ʿưٻ˭,иɻwebƵԴӦ⡣ ƷʾΪc뽫115/230Vл230Vλò250~370VDCлλڡ115V250~370VDCɵԴӦ٣⡣

 

24. ΪβƷʾInput Voltage 88-264Vacֽʾ100-240V?
Ans: ʹ߿ϵıʾѹΧʵڰ֤ʱνϡ10% ( IEC60950 +6% -10% )ԵԴӦ鶨ĵѹΧʹDz⣻ϱʾ㰲淶 ȷʹȷԴ

 

25. CEʾIJƷǷװϵͳڣһܷEMCҪ?
Ans: һһԴӦϵͳλáİϵͳӵƵȵȡij̶ֳȵӰ졣 ͬĵԴӦڲͬʹûӦвͬĽ

 

26. ʲôMTBFLife Cycleкβͬ
Ans: MTBFLife CycleDzƷԵҪָ롣νMTBFMean Time Between FailureƽʧЧʱΪɿԤֵָƷһʱɿȽ36.8%ƽʱ䡣MTBFһDzMIL-HDBK-217F׼ԤƷɿȵֵȣϵָòƷʹõʱäŮ72Сʱδɾ,ʿưٻ˭,иɻwebƲƷʹMTBFʱ䣬ĻȻ13.5%e-2 =0.135 Life CycleǵָòƷĵ֮IJοֵƷSP-750-12 MTBF=769.3KСʱC108 Life Cycle=202.2KСʱTa=45C

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