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| 型號(hào)： | MC33262D |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | POWER FACTOR CONTROLLERS |
| 中文描述： | 0.5 A POWER FACTOR CONTROLLER, PDSO8 |
| 封裝： | PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 391K |
| 代理商： | MC33262D |
MC34262 MC33262
13
MOTOROLA ANALOG IC DEVICE DATA
Figure 22. Power Factor Corrected Input Waveforms
(Figure 20 Circuit)
Figure 23. Output Voltage Startup Overshoot
(Figure 20 Circuit)
Input = 115 VAC, Output = 175 W
Input = 230 VAC, Output = 175 W
2.0 ms/DIV
2.0 ms/DIV
V
C
V
C
Without Overvoltage Comparator
200 ms/DIV
200 ms/DIV
500 V
400 V
0 V
432 V
400 V
0 V
8
8
26%
8%
With Overvoltage Comparator
Figure 24. Power Factor Test Set–Up
0.005
1.0
0.005
HARM
FREQ
11
LO
0.1
O
I
T
0 to 270 Vac
Output to Power
Factor
Controller Circuit
Earth
Line
Neutral
115 Vac
Input
RFI Test Filter
Autoformer
2X Step–Up
Isolation
Transformer
LO
HI
HI
V
A
Ainst
Acf
Vcf
Arms
Vrms
PF
VA
W
13
9
7
5
3
2
1
0
Voltech
AC POWER ANALYZER
PM 1000
An RFI filter is required for best performance when connecting the preconverter directly to the ac line. The filter attenuates the level of high
frequency switching that appears on the ac line current waveform. Figures 19 and 20 work well with commercially available two stage filters such
as the Delta Electronics 03DPCG5. Shown above is a single stage test filter that can easily be constructed with four ac line rated capacitors and a
common–mode transformer. Coilcraft CMT3–28–2 was used to test Figures 19 and 20. It has a minimum inductance of 28 mH and a maximum
current rating of 2.0 A. Coilcraft CMT4–17–9 was used to test Figure 21. It has a minimum inductance of 17 mH and a maximum current rating of
9.0 A. Circuit conversion efficiency
η
(%) was calculated without the power loss of the RFI filter.
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參數(shù)描述 |
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| MC33262DG | 功能描述:功率因數(shù)校正 IC Critical Mode PFC w/OVP RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33262DR2 | 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33262DR2G | 功能描述:功率因數(shù)校正 IC Critical Mode PFC w/OVP RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33262P | 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| MC33262PG | 功能描述:功率因數(shù)校正 IC Critical Mode PFC w/OVP RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
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