Ϲ
Ǵ AC Է¹ Էºο
EMI Ͱ Ǿ ִ
̴.
EMI Է¶ () ɷ Ͽ ۵ǵ .
Է¶ () EMIͰ ɷν ġ ǰ ջŰ
ϰ ܺα⸦ ȣ ֵ ߴ.
[ּ1]
Էº EMI (Electro-Magnetic
Interference Filter)
Ϲ Ͷ ȣ
ų ִ ȸθ Ѵ. EMI Electro-Magnetic
Interference ڷ () ִ. Էº
EMIʹ Ѵ.
1. Է Ŀ η 귯
´.
2.
ݴ Ŀ Ī
Է ԵǴ ´.
̿ ʿ ġϴ
Ű ؼ ε, ̶ Է Ǵ
ϴ ִ. ̿ ٸ Ŀ ö Ī ϴ Ÿ ٸ ⳪ Ÿ
ġ ۿ ְ ɼ ִ. ⼭ Ŀ Ī Ŀ ڼ 캸
.
EMIʹ ǰ ϳ
ȭ Ű ǰ Ϲ ִµ, Ű Ÿ ξ ϰ δ.
ǰ ̷ Ϲ EMIͿʹ
ָ
Ű Ÿ EMI ʹ ǰ
Ϲٴ ܰ ټ ٰ ˷ ִ. , ϴ ɻ ū . |
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-(AC-DC)
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̿ ܵ -(AC-DC) ̴. Էºο
EMI
ģ (AC) ̿带 ܵ (DC) ȯǴ
ġ ̴.
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ܵ
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ܵ(Ȱܵ) 200V 680̴. ܵ
뷮 680̴. 420W Ŀö̿
ټ Active PFCȸ ä ٿְ ȿ
־ ũ .
ܵ(Ȱܵ) 뷮 ū äϸ
Ŀ 뷮 ְ ִ. ʹ ū 뷮 äϰԵǸ
ִ. Ÿ Ŀ Active
PFCȸΰ Ƿ 뷮 680ε ϴ ־ Ѵ.
1 Ʈũ ܿ ִ Active PFCȸ̴.
ȿ ִ ̱ ؼ Active PFC ȸθ ä
ȸημ ⼭ 1 ִ 긴 ̿ Active PFC Controller
ִ.
[ּ2] PFC(Power Factor Correction) PFC(Power Factor Correction)
Է ޱ Ͽ ġ ȸθ ִ Ѵ. ѱ۷ ű
'ȿ '̶ ġ ȿ Ű Ͽ ȸθ ߰ ̴.
PFC ȸο ִµ, ϳ
Active ̰ ٸ ϳ Passive ̴. ȸα
Active̶ ϰ ǰ ̿ Passive ̶ Ѵ.
PFC
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Active PFC
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Active ȸδ ȿ 95%(̻) ϹǷ ȿ . Ʈμ
AC
ġ ʿ䰡 80-265V AC Է ڵ Ѵ.
, PFC ȸο
û뿪 ( ) ʴ ˷ ִ.
APFC(active power factor correction) ȿ ÷ Ҹ
ִ. ð ѵδ PC ˸´.
Active
PFC ϴ. Active PFC Ͽ (PF) Passive PFC( 75%)
94% ̻( ) Ͽ, ġ Ϸ Ͽ
EMI
( ) ˻ Ͽ ȣġ ߰ ؾ մϴ. ̸ ٸ ϸ Active PFC ȸο İ
Ѵ.
߿ ԵǾ ִ. û 뿪 ̻ Ϳ 鸮 鿡 ð û 뿪
̻ Ƿΰ ִ.
(10 ̻) ȸΰ Ͽ ϱ ƴ.
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Passive PFC
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Active Ŀ Ͽ ξ , ȸΰ ܼϸ ǰ
߰δ . ǰ PFC ߰Ͽ ִ.
ݸ ȿ 68-80% شȴ. ̷ Passive PFC ȸθ
Active PFC ؼ ȿ ִ.
AC
ġ ؾ ϸ ߰ inductor Ͽ Ϲ Ŀ ξ .
passive
PFC ſ Դϴ. |
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[ּ4]
-(AC-DC)
EMI ģ ϴ,
ǻͳ ֺ ʿ ϴ 3.3V, 5V, 12V ȯDZ ӽ ȯǴ
ģ.
⼭ ϴ ӽ ̶
츮 ִ Ͽ ܼ ϴ ,
3.3V, 5V, 12V ̶ ִ. ߾ӿ ̴ ̿带 ٷ
̴ ܵ . ܵ Ŀ ö ߿
ģ.
츮 Ϲ ϴ ƴ 찡
ӽ ϴ ִ. 220V ϴ 311V
ȴ. Ŀ 311V - Ī ȯο 3.3V, 5V, 12V
̴. |
[ּ3]
ƴͿ ǻ Ŀ ö
ʹ Ϲ
220̳ 110V ٲپ ִ ִ. ɸ
ǻ Ŀö̿ ̰ ƴʹ Ϲ Ŀٶ 60Hz б(ƴ ü κ б شȴ) Ͽ
̿ 4 긮 ȸθ Ͽ ȯϰ ܵ Ȱϰ ̸ ٷ ش. ̴
Ŀö̿ θ ģ ӽ ϴ Ͱ ٰ ִ. īƮ ȭó 뷮 ۰(1A̸)
ʿ ϴ ϳ δ ƴͰ ǻó ټ а 뷮(30A ) ʿ
ϴ δ ƴͰ ƴ Ī Ŀ ö̸ ؾ߸ Ѵ. |
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-(DC-DC) Ī ȯ
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-(DC-DC) Ī ȯ ̴.
Ī Ŀö̿ ߿ κ Īб(ĪƮ) ̴.
Ʈũ(濭) ѷ־
Ʈũ ̿ бⰡ ڸ ִ.
ũ 4 б(Ʈ) Ǿִ.
-(AC-DC) ļ
-(DC-DC) Ī ȯθ
ȴ. -(DC-DC) Ī ȯθ Ͽ 3V, 5V, 12V
ȴ. ũ б Ǵ Ŀ б ̴.
DCи PC ִ DC +3.3V, +5V, +12V
ȯ Ī ȯο ϰ Ǵµ
ް Ϲ Ͽ ߿ б ֺο ˷̴
濭 ؼ 濭 ־ 濭ȿ ־
ð ̷ ֵ ߴ.
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Ī
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Ī ̴.( θ) ĪTR ϴ ȸκΰ ҽ ǵϿ
ϴ ϴ ̴. ġ ҵ ϰ ִ.
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µ Ʈѷ
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º Ʈũ(濭) µ Ʈѷ Ͽ Ÿ
TSCT ̿Ͽ µ ӵ Ͽ ǰ ۵ ȯ ÿ ϵ
ϰ ִ.
[ּ5]
-(DC-DC) Ī ȯ
-(DC-DC) Ī ȯ
Ŀ ö ٽɺκ̴. DC
DC ٲٴ ȸΰ ʿ Ǿ ̴. б Ϳ ؼ 캸ƾ
Ѵ. б
״ ȭŰ ǰ̴. б⸦ ϸ 100V 50V 10V ȭų ִµ, ̶ ݵ ̾
Ѵ. б⸦ ؼ ȭ ų . ٷ ⼭ Ī ȸ ʿ伺 ϰ
ȴ.
ȯ ִ غ. () Ǿ ִ. Ʒʿ
ýð ϴ ȭѴ. £ ýð ȭϴ 信 ° ? Ƹ Ƚ
ִ ð ䷮ ° ϸ ̴. ⼭ شϴ ġ̰ ݴ Ƚ شϴ Ī
ļ̸ ִ ð ٷ (Duty)̶ ̴. ̿ ´ 䱸 ° ݺָ
ó ȭϰ б⸦ Ͽ ´ܿ ȯ ִ ̴.
Ī ȯδ ´ 䱸 ° Ī ϸ鼭 ó ȭŲ. б⸦ Ͽ
б ȣ
뿪 Ͽ Ī Ǵ ð ϴ κ ְ ȴ.
̷ μ 3.3V, 5V, 12V ȯŲ
ȴ. |
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º
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º
̴. 2 ζ ϴ κ̴. ū ũϰ
ܵ ̰ ִ.
ϱ
ѹ ϴ ̴. Ŀö ȸο Ǿ
µǴ ̺ µ ϰ Ľ ý η ǵ Ͽ.
δͿ ܵ ̿ؼ ߰ ͷ ̴
º
- Ī ȯο ȯǰ
ɷ ó ִ δͿ ܵ
º Ͽ 2 ɷ ͺ
ִ ̺ Ÿ̿ β
µǴ ְ ִ.
|
̺
|
ͺ
ִ ̺ ̺ Ÿ̿ β ̺
ִ.
[ּ6]
º
º
- Ī ȯο ȯǰ 1 ٽ ߰ Ͽ ݿ ´
κ̴. Ŀ ö̸ ǻͷ Ǵ κп δͿ ܵ
ִ ִµ, ̷ ڵ ϰ ִ ̴.
Ī ȯδ ´ 䱸 ° Ī ϸ鼭 ó ȭŲ. б⸦ Ͽ 뿪
ؼ ð ϰ ȯ( 3.3V, 5V, 12V )Ű κ̴. |
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ý ̽ ĸ鿡 ȭ
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478Ÿ κ忡 20 ATX Ŀ ·
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12V 4 Ŀ
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ODD 1ġ 4 Ŀ
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1ġ 4 Ŀ HDD
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FDD ̴ 4 Ŀ
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̺
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ĿͿ ̺ սŲ ̴. Ŀö
ġ LGA775Ÿ Ƽ4 ġϷ
ؾ Ѵ. ġϴ ſ .
ο ߱ϴ
Ʃ LED δ. ũ г
ϴ LED 鼭
ȴ.
ִ ý ̽
̶ ٷ Ͱ.
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