參數(shù)資料
型號(hào): AD7751(中文)
廠(chǎng)商: Analog Devices, Inc.
英文描述: Energy Metering IC with On-Chip Fault Detection(高精度容錯(cuò)電子能量測(cè)量芯片)
中文描述: 電能計(jì)量IC片故障檢測(cè)(高精度容錯(cuò)電子能量測(cè)量芯片)
文件頁(yè)數(shù): 14/15頁(yè)
文件大?。?/td> 327K
代理商: AD7751(中文)
==99-11-12==
P&S
ooá|′μ×ó1é· YóDT1
==15-14==
P &S
oo á|′μ×ó1é· YóDT1
μ :
ot±±ooêD×μèa· 15o
D :
ooêD70020D
óê±à:
430079
μ°:
( 86) ( 027£87493500 87493506
( 86) ( 027) 87491166, 87493497
P &S
í í :
http://www.p8s.com
òò2á· ¢éúóé
V1A
ò
V1B
μì×a £òò
V1A
±£3a¤ êè £
4. 9. 2 V1B′óóúV1Aìtμ1ê
í
11
μ÷ááí òêé £è1
V1A
ê¤ ê裨′óóú£ú
V1B
éμμ1£¨· ¤ êè£
±3é′óóú
V1A 114%
£ò
FAULT
ê±aóDD§2¢òóDò′ò
V1B
êèμì×a£
V1B
ú±3éᤠêè £
íùμóúaòì×a′óóD
1
óμê±3£êy £
V1A
2áè¥ù3éa¤ í¨μࣱμ
V1A
±3é′óóú
V1B 114%
ê± £μ±è£òμ
V1A
ú
V1B
μ
12.5%
òúê±
FAULT
êá¢′±aTD§ £
FAULT
FI&
COMPARE
+
-
V1A
V1N
V1A
0V
V1A
AGND
+
-
V1B
V1B
V1B
A
B
TO
V1B 87.5% of V1A
+
-
V1A
V1N
V1B
0V
V1A
AGND
+
-
V1B
V1B
V1A
A
B
FAULT
TO
FI&
COMPARE
V1A < 8or
V1B > 114% of V1A
í
10
¤ êè′óóú ¤
í
11
· ¤ êè′óóú¤
êèìtμ1ê
êèìtμ1ê
4. 9. 3 1óúD£×
í¨3£úD£×ò ò±í μμ1 oí μá÷μ· ê±ê· ±eDDμ£èí
7
ùê £aμ÷μá÷ 1yà
£¨
Phase
£òD£¨
Neutral
£· £í
12
ùê£oμá÷í¨1yàμ· £aê× μ £òòaúéμê±
AD7751
aêó
V1A
êè1¤×÷ £úíDàμ·
CT
áóμ
V1A
£óéóúúDμ· DóDμá÷£òòúaDt
FAULT
êóDD§ £èa2¢2ó°ì D£×μè£2¢òaéòóà′×÷a2aêê 2aDüμò ¨ £
è1Dμ· ± ×÷aμá÷μ· èí
12
Dμ°2ù£a£áμD£×μè £
AD7751
èí¨3£
ùúéμê±ò
V1A
êè×÷a¤ £μêòòaúúàμ· DóDμá÷£ú
V1A
éμDoaá £a
òye
FAULT
±ê¤ êè±μ
V1B
£¨D££ò±í úa£ê±D£×£μàoíDáμ
CT
éüóDéùD 2í £òòaúT1êìtê±ùóDμêóà
CT
DDμ£òòò±í ±Dóàμ· DDD£
× £μ±èòéòàoíDá μ· DDD£× £
+
-
V1A
V1N
AGND
+
-
V1B
CT
CT
Rb
Rb
Rf
Rf
Cf
Cf
Ib
+
-
V2P
V2N
Ra*
Rf
Cf
Cf
Rb*
*Ra // Rb = Rf
Ib
V
240V rms
Test
Current
V1A
0V
í
12
· ¤ êè′óóú¤ êèìtμ1ê
相關(guān)PDF資料
PDF描述
AD7751 Energy Metering IC with On-Chip Fault Detection(高精度容錯(cuò)電子能量測(cè)量芯片)
AD7755(中文) Energy Metering IC with Pulse Output(帶脈沖輸出的高精度電子能量測(cè)量芯片)
AD7755 Energy Metering IC with Pulse Output(帶脈沖輸出的高精度電子能量測(cè)量芯片)
AD775 8-Bit 20 MSPS, 60 mW Sampling A/D Converter(8位,20MSPS 60mW采樣A/D轉(zhuǎn)換器)
AD776 16-Bit 100 kSPS Oversampling ADC(16位100kSPS過(guò)采樣A/D轉(zhuǎn)換器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7751AAN 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述:PRODUCT TO FREQUENCY CONV - Bulk
AD7751AAN-REF 制造商:Analog Devices 功能描述:
AD7751AARS 制造商:Rochester Electronics LLC 功能描述:PRODUCT TO FREQUENCY CONV - Bulk
AD7751ABRS 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Energy Metering IC With On-Chip Fault Detection
AD7751AN 制造商:Rochester Electronics LLC 功能描述:PRODUCT TO FREQUENCY CONV - Bulk