參數(shù)資料
型號(hào)： HA17431PA
廠商： Hitachi,Ltd.
英文描述： 250000 SYSTEM GATE 1.5 VOLT FPGA
中文描述： 高精度變并聯(lián)穩(wěn)壓器
文件頁(yè)數(shù)： 20/26頁(yè)
文件大?。?/td> 236K
代理商： HA17431PA
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
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HA17431VLP 250000 SYSTEM GATE 1.5 VOLT FPGA
HA17431VP Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp.
HA17431UA Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp.
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA17431PA-E 制造商:Renesas Electronics 功能描述:Precision Bulk 制造商:Renesas 功能描述:V-Ref Adjustable 150mA 3-Pin TO-92 Mod
HA17431PAJ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
HA17431PA-TZ-E 制造商:Renesas Electronics Corporation 功能描述:Power Sup,Shunt Req.,Vka=40V,Vref=2.495V
HA17431P-E 制造商:Renesas Electronics 功能描述:Adjustable Bulk
HA17431PJ 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Shunt Regulator
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