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电源设计－PFC回路
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输入数据 |
Vinm= |
176 |
Vrms |
最小交流输出电压 |
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Vinn= |
230 |
Vrms |
额定交流输出电压 |
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Vinx= |
276 |
Vrms |
最大交流输出电压 |
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fpfc= |
140 |
kHz |
PFC开关频率 |
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fline= |
50 |
Hz |
电网频率 |
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Ppfc= |
2,689 |
W |
PFC阶的最大输出功率 |
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Cb= |
1,269 |
uF |
选定的升压电容 |
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Vba= |
407 |
V |
平均升压电压 |
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Vbpp= |
16.6 |
Vpp |
升压纹波的峰峰值 |
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Lb= |
83.0 |
uH |
PFC升压电感 |
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Iinx= |
16.0 |
Arms |
低电网电压时输入电流最大rms值 |
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Iinn= |
12.2 |
Arms |
额定电网电压时输入电流额定rms值 |
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Ibpkx= |
26.8 |
Apk |
升压电感，开关和二极管最大峰值电流时 |
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Vspfc= |
270 |
mV |
PFC支路，额定条件时的峰值电压 |
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Iacpkx= |
300 |
uA |
最大电网电压时最大的峰值Iac |
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Vs= |
5.4 |
Vpp |
斜坡电压的峰峰值 |
5.4 |
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Vvea= |
3.5 |
Vpp |
Vvea=1.5V到5V.
满功率时为5V |
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V3thd= |
4.0 |
% |
三次谐波对THD的贡献 |
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V3vff= |
1.6 |
% |
由Vff引起的三次谐波对THD的贡献 |
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V3vao= |
2.4 |
% |
由Vvao引起的三次谐波对THD的贡献 |
Vvao rip=2x1.5% |
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Rvi= |
962 |
k |
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Rff1= |
960 |
k |
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Rff2= |
100 |
k |
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Rff3= |
20 |
k |
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Rpk1= |
10 |
k |
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Ilim= |
30 |
% |
超过额定部分的百分比 |
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Plim= |
20 |
% |
输入功率超过额定部分的百分比 |
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输出数据 |
Rspfcc= |
15.6 |
mOhm |
PFC支路电阻 |
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Rspfc= |
15.0 |
mOhm |
选定的PFC支路电阻 |
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Pspfc= |
2.2 |
W |
PFC支路额定功率 |
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Pspfc= |
3.8 |
W |
PFC支路最大功率 |
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Rvacc= |
1,301 |
k |
Iac的倍增器电阻 |
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Rvac= |
1,298 |
k |
选择的Iac的倍增器电阻 |
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Iacl= |
192 |
uA |
低电网电压时的Iac |
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Iml= |
384 |
uA |
低电网电压时的倍增器电流极限值。应当 > |
78 |
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Impk= |
78 |
uA |
峰值电网电压时的倍增器电流 |
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Vffm= |
2.93 |
V |
低电网电压时倍增器的Vrms |
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Vffn= |
3.83 |
V |
额定电网电压时倍增器的Vrms |
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Vffx= |
4.60 |
V |
高电网电压时倍增器的Vrms |
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Gff= |
0.024 |
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fp= |
16 |
Hz |
Vff双极点频率 |
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Cff1= |
102 |
nF |
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Cff2= |
512 |
nF |
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Vspfcx= |
339 |
mV |
峰值电压，PFC支路，低电网电压 |
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Rmoc= |
3.63 |
k |
倍增器输出电阻 |
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Rmo= |
3.74 |
k |
选择的倍增器输出电阻 |
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dVs/dt |
0.756 |
V/us |
斜坡电压控制电容 |
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dVspfc/dt= |
0.074 |
V/us |
支路电压下降斜率 |
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Gca= |
10.28 |
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电流倍增器增益 |
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Rci=Rmo= |
3.74 |
k |
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Rcz= |
38.4 |
k |
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fci= |
22.3 |
kHz |
电流环交叉频率应＝ |
22.3 |
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Cczp= |
588 |
pF |
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Ccz= |
560 |
pF |
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Ccpc= |
59 |
pF |
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Ccp= |
56 |
pF |
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Gva= |
0.0203 |
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Cvf= |
81.6 |
nF |
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fvi= |
21.9 |
Hz |
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Rvf= |
89.0 |
k |
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Rpk2= |
0.697 |
k |
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Rvd= |
6.84 |
k |
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| 涉及到的参照为Unitrode的应用笔记中所用的。 |
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| SMPS电源公司 |
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| 只做正确的事就是最需要做的事™ |
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| www.PowerSupplies.net |
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| www.GoToPower.net |
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| 版权所有©1998-2005 SMPS Power Supplies,
Inc. 保留所有权利 |
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| 版权所有©1990-1997 LCD Consulting |
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| 版权所有©1979-1989 Constantin Darius Livescu |
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欢迎评论和建议。查看完整的电子表格:
ADH2450Deszg.xls
版权所有©1998-2005
SMPS电源公司.
保留所有权利
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