急,20W電感變壓器EMC沒有通過,怎么修改?

急,20W電感變壓器EMC沒有通過,怎么修改?請各位高人指點一下!

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pretty-grace

LV.3

2007-07-20 11:40

是諧波干擾沒通過

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cotech

LV.2

2007-07-20 14:17

需參考變壓器圖紙才能知道原因,或許我能幫你

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pretty-grace

LV.3

2007-08-01 13:29

電感變壓器本身如不修改,可不可以加濾波電容使EMC諧波干擾測試通過.

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pretty-grace

LV.3

2007-08-02 14:35

fail in harmonic test as followed result,

Watts:32.261 RMS I:0.304 Volt:230.186 PF:0.471 Freq:49.965

Harmonic results as a % of Limit

         Last Steady     Max Steady
#2      91.583          98.944
3F     111.038         112.036 (fail in current 3rd harmonic test)
5       14.513          14.835
7        7.182            7.283
這個是EMC測試的數(shù)據(jù)

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pretty-grace

LV.3

2007-08-02 14:36

@pretty-grace

failinharmonictestasfollowedresult,Watts:32.261RMSI:0.304Volt:230.186PF:0.471Freq:49.965Harmonicresultsasa%ofLimit LastSteady MaxSteady#2 91.583 98.9443F 111.038 112.036(failincurrent3rdharmonictest) 5 14.513 14.8357 7.182 7.283這個是EMC測試的數(shù)據(jù)

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