參數(shù)資料
型號： AND8039
廠商： ON SEMICONDUCTOR
英文描述： The One-Transistor Forward Converter
中文描述： 一個晶體管正激變換器
文件頁數(shù)： 6/12頁
文件大?。?/td> 89K
代理商： AND8039
AND8039/D
http://onsemi.com
6
The crossover frequency will be set at about 8.0 kHz. To
accomplish this, one assumes that the eventual closed loop
bode gain response of the system will be –20 dB/decade
continuous slope. Then one can calculate the amount of
mid–band gain that the error amplifier must provide to
“push–up” or “l(fā)ower” the gain function so that the crossover
frequency is set at 8.0 kHz. This is done by:
Gxo
20 Log(fxoffp)
GDC
18.2 dB
converting this value to absolute gain for later use:
Axo
10[Gxo20]
8.13
Now one can begin to calculate the actual error amplifier
feedback component values.
C5
R4
C6
1 2 fxoAxoR11
AxoR11
1 2 fezR4
360 pF
56 K ohms
0.56 F
Figure 4. Compensation Bode Plots for the Example
+80
+60
+40
+20
0
–20
–40
–60
–80
Control–to–Output
Light Load
Closed Loop
1.0
10
100
1.0K
10K
100K
1M
Control–to–Output
Light Load
Rated Load
Error Amp
Rated Load
0
–90
–180
–270
–360
G
P
°
)
相關PDF資料
PDF描述
AND8044 Single-Channel 1206A ChipFET TM Power MOSFET Recommended Pad Pattern and Thermal Performance
AND8048 Dual P-Channel 1.8 V (G-S) MOSFET
AND8048D Dual P-Channel 1.8 V (G-S) MOSFET
AND8054 Designing RC Oscillator Circuits with Low Voltage Operational Amplifiers and Comparators for Precision Sensor Applications
AND8058 Two New Analog Switches Set Standards for Space Efficiency
相關代理商/技術參數(shù)
參數(shù)描述
AND8044 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Single-Channel 1206A ChipFET TM Power MOSFET Recommended Pad Pattern and Thermal Performance
AND8044/D 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Single-Channel 1206A ChipFET TM Power MOSFET Recommended Pad Pattern and Thermal Performance
AND8048 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Dual P-Channel 1.8 V (G-S) MOSFET
AND8048D 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Dual P-Channel 1.8 V (G-S) MOSFET
AND8054 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Designing RC Oscillator Circuits with Low Voltage Operational Amplifiers and Comparators for Precision Sensor Applications
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