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參數(shù)資料
| 型號： | HA17431UA |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. |
| 中文描述： | 關(guān)于在諸如日立電器和日立二十，文件提及的瑞薩科技公司名稱變更 |
| 文件頁數(shù)： | 20/26頁 |
| 文件大小： | 236K |
| 代理商： | HA17431UA |
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HA17431 Series
Rev.1, Sep. 2002, page 18 of 24
AC characteristic determination:
This refers to the determination of the gain frequency characteristic of
the shunt regulator as an error amplifier. Taking the configuration in figure 2, the error amplifier
characteristic is as shown in figure 3.
When R
5
= 0
f
OSC
Frequency f (Hz)
* f
OSC
: PWM switching frequency
When R
5
≠
0
G
1
f
1
f
AC
f
2
G
2
G
Figure 3 HA17431 Error Amplification Characteristic
In Figure 3, the following formulas are obtained:
Gain
G
1
= G
0
≈
50 dB to 60 dB (determined by shunt regulator)
G
2
=R
5
R
3
Corner frequencies
f
1
= 1/(2
π
C
1
G
0
R
3
)
f
2
= 1/(2
π
C
1
R
5
)
G
0
is the shunt regulator open-loop gain; this is given by the reciprocal of the reference voltage fluctuation
Vref/
V
KA
, and is approximately 50 dB.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HA17431UPA | Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. |
| HA17431VUP | Infrared Temperature Sensor; Sensor Output Type:K thermocouple; Field of View:10:1; Sensor Terminals:Cable; Accuracy: 1%; Features:Miniature Sensing Head with separate electronics; Response Time:200ms; Supply Voltage:24VDC |
| HA17431H | Shunt Regulator |
| HA17431HLP | Shunt Regulator |
| HA17431HLTP | Shunt Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA17431UA-E | 制造商:Renesas Electronics Corporation 功能描述:HA17431UA-E |
| HA17431UA-TL | 制造商:Hitachi 功能描述:Voltage Regulator, Adjustable, +2.5 TO +40V, Bi-Polar, 3 Pin, Plastic, TO-243 |
| HA17431UA-TL-E | 制造商:Renesas Electronics 功能描述:Precision Cut Tape 制造商:Renesas Electronics Corporation 功能描述:Shunt Regulator,2.495V 2.2%,150mA,UPAKV 制造商:Renesas 功能描述:V-Ref Adjustable 150mA 4-Pin(3+Tab) UPAKV |
| HA17431UPA | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. |
| HA17431VLP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. |
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