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參數(shù)資料
| 型號： | IRS2500SPBF |
| 廠商： | International Rectifier |
| 文件頁數(shù)： | 16/22頁 |
| 文件大小： | 419K |
| 描述： | IC PFC |
| 產(chǎn)品培訓(xùn)模塊： | IRS2500 PFC Control IC Overview |
| 標(biāo)準(zhǔn)包裝： | 95 |
| 系列： | * |
IRS2500S
www.irf.com
?2012 International Rectifier
16
PFC Design Equations (for Boost Converter)
Step1: Calculate PFC inductor value:
VBUS
P
f
VAC
VAC
VBUS
L
OUT
MIN
MIN
MIN
PFC
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
=
2
)
2
(
2
?/DIV>
[Henries] (1)
where,
VBUS = DC bus voltage
MIN
VAC = Minimum rms AC input voltage
= PFC efficiency (typically 0.95)
MIN
f
= Minimum PFC switching frequency at minimum AC input voltage
OUT
P
= Ballast output power
Step 2: Calculate peak PFC inductor current:
?/DIV>
?/DIV>
?/DIV>
?/DIV>
=
MIN
OUT
PK
VAC
P
i
2
2
[Amps Peak] (2)
Note: The PFC inductor must not saturate at
PK
i over the specified ballast operating temperature range. Proper core sizing
and air-gapping should be considered in the inductor design.
Step 3: Calculate PFC over-current resistor ROC value:
PK
OC
i
VOCTH
R =
where VOCTH = 1.1V [Ohms] (3)
Step 4: Calculate start-up resistor RVCC value:
IQCCUV
VAC
R
PK
MIN
VCC
10
+
=
[Ohms] (4)
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| IRS25091SPBF | 功能描述:功率驅(qū)動器IC Half-Bridge Driver 600V 10V to 20V RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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