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參數(shù)資料
| 型號： | HA16178P |
| 廠商： | Renesas Technology Corp. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Power Factor Correction Controller IC |
| 中文描述： | 功率因數(shù)校正控制芯片 |
| 文件頁數(shù)： | 11/25頁 |
| 文件大?。?/td> | 262K |
| 代理商： | HA16178P |
HA16178P/FP
REJ03D0903-0100 Rev.1.00 Jun 12, 2007
Page 11 of 24
5. PFC ON/OFF Function
Rec+
Rec–
R2
20 k
R1
720 k
C1
2.2
μ
Em
1.75 V
1.60 V
PFC ON/OFF control
5
PFC-ON
2
×
Em
π
2
×
√
2
×
Vac
π
V
PFC-ON (DC)
×
π
2
×
√
2
R2
R1 + R2
V
PFC-ON (DC)
=
Vac =
×
R2
R1 + R2
×
=
R1 + R2
R2
×
Vac
PFC-ON
1.75 V
1.60 V
71.9 V
65.8 V
PFC-OFF
(Internal signal)
PFC ON status
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