電子火牛問題(switching 牛)

電子火牛有冇iron loss 同 coper loss?
如果有佔有efficiency(total loss) 既幾多?

回復 1# kelvin500


    有,不過比普通火牛少好多
efficiency睇下咩用料,好難講,唔係點會有80 plus呢個標準呢

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1. All transform has iron loss and copper loss, including the output transformer used in SWPS.
2. I assume you are refering to the output transformer (pulse transformer) of the SWPS.
3. The manufacturers pick the better material to construct the output transformer to minimize loss. High magnetic permeability and High resistance material (to prevent eddy curret).
4. The switching transistor usually contributes the loss more than the output transformer. Sorry, I don't know how to quantify it howerver.

電子火牛有冇iron loss 同 coper loss?
如果有佔有efficiency(total loss) 既幾多?
kelvin500 發表於 2012-3-31 21:54

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