點(diǎn)擊圖片查看大圖A20B-2900-0380 05C _ A20B2900038005C _ A2OB-29OO-O38O/O5C
GX06 BN624A421H01
A20B-2900-0380 05C _ A20B2900038005C _ A2OB-29OO-O38O/O5C
在模擬電路和數(shù)字電路中，信號(hào)的表達(dá)方式不同。對(duì)模擬信號(hào)能夠執(zhí)行的操作，例如放大、濾波、限幅等，都可以對(duì)數(shù)字信號(hào)進(jìn)行操作。事實(shí)上，所有的數(shù)字電路從根本上來說都是模擬電路，其基本電學(xué)原理，都與模擬電路相同?；パa(bǔ)式金屬氧化物半導(dǎo)體就是由兩個(gè)模擬的金屬氧化物半導(dǎo)體場(chǎng)效應(yīng)管構(gòu)成的，其對(duì)稱、互補(bǔ)的結(jié)構(gòu)，使它恰好能處理高低數(shù)字邏輯電平。不過，數(shù)字電路的設(shè)計(jì)目標(biāo)是用來處理數(shù)字信號(hào)，如果強(qiáng)行引入任意模擬信號(hào)而不進(jìn)行額外處理，則可能造成量化噪聲。設(shè)計(jì)的難度：模擬電路的設(shè)計(jì)通常比數(shù)字電路更為困難，對(duì)設(shè)計(jì)人員的水平要求更高。這也是數(shù)字電路系統(tǒng)比模擬電路系統(tǒng)更加普及的原因之一。模擬電路通常需要更多的手工運(yùn)算，其設(shè)計(jì)過程的自動(dòng)化程度低于數(shù)字電路。然而，數(shù)字式電子設(shè)備要在真實(shí)物理中得到應(yīng)用，就必須具有一個(gè)模擬的接口，因?yàn)樽匀唤绲拇蠖鄶?shù)實(shí)際信號(hào)是模擬的。例如，所有數(shù)字式收音機(jī)的信號(hào)接收器，都具有一個(gè)模擬的預(yù)放大器來進(jìn)行信號(hào)接收的步操作。
噪聲：在模擬電路中，由于信號(hào)幾乎完全將真實(shí)信號(hào)按比例表現(xiàn)為電壓或電流的形式，造成模擬電路對(duì)于噪聲的影響比數(shù)字電路更加敏感，信號(hào)的微小偏差都會(huì)表現(xiàn)為相當(dāng)顯著，造成信息損失。作為對(duì)比，數(shù)字電路只取決于高低電平，如果要造成信息傳遞的錯(cuò)誤，那么信號(hào)的偏差必須至少達(dá)到高電平的一半左右（具體的大小根據(jù)不同的電路規(guī)格有所不同）。因此，對(duì)信息進(jìn)行量化的數(shù)字電路對(duì)于噪聲的抵御能力比模擬電路更強(qiáng)，只要偏差不大于某一規(guī)定值，信息就不會(huì)損失。在數(shù)字電路中，噪聲在各個(gè)邏輯門的地方都可以得到消減。
?
福州卓凱電子科技有限公司
地址：福州市閩侯西江濱大道77號(hào)正榮潤園一號(hào)樓1205室
大量現(xiàn)貨abb,施耐德等國外多家品牌，產(chǎn)品涉及變頻器，儀器儀表，變送器，可編程控制器plc和人機(jī)界面。
電話：15506917382??? 0591-62182535?
傳真：0591-22989937?? QQ：583745937? 聯(lián)系人：王工
歡迎來電咨詢???????????????????????????
努力造就實(shí)力，態(tài)度決定高度。
Yokogawa PH400-P-U-1*A Control Module PH400PU1A -
McGill CCYR-6-S Cam Yoke Roller Lubri-Disc Follower Bearing
Gould M907-100 Memory Module M907-102 With Key -
Reliance Electric S-25004-1 DPS1A Card Module
MRC 15D8291 Ball Bearing Set P97313U12 Rev. "08"
Allen Bradley 2711-K5A5 PanelView 550 Operator Interface Panel Ser B Rev B
Square D 9007-AW36 Limit Switch 9007AW36 (Pack of 3)
General Electric 531X300CCHABM5 Control Card DC300 -
Halmar 18513 Power Controller Trigger Module -
Allen Bradley 1336F-B020-AA-EN Plus II Drive 20 HP
Westinghouse 608B072G01E Fuse 50 Amp (Pack of 3) -
Gem 1988-1401AF Micro-Computer -
DVT SR-6RU84 SmartReader Camera 8mm F4.0 Lens
Siemens 1FT6086-8AF71-4EB0 Servomotor Damaged -
Stearns 5-66-8452-00 Friction Disk 566845200 (Pack of 6)
York 031-01065E002 CPU Control Board Rev. A 031-01065E
Part SD-3640-C SD3640C Encoder -
Fanuc 15-TA Base Module A02B-0094-B502
Oriental Motor CSK264ATA-SG10 Stepping Motor PK264A2A-SG10 W/ CSD2120-T
Unico 319847 UNICO 4000 PC BOARD INTERFACE 319-847
AT&T DMCBACAEXX TLM1 Card AKM4
ITE EF3-A025 Circuit Breaker 25 Amps 600 VAC
Marelli Lecco CONTROL 1 Control 1 Circuit Board -
JCS 1710-3MC1 17103MC1 Circuit Board Rev A -
Avaya TN2224B 2W Digital Line Card V18
NSK 7019CTYDULPA7 Super Precision Cylindrical Roller Bearing
Capp/USA 363877 Relay -
Potter & Brumfield KU93-4007-7 120V Relay KU9340077 (Pack of 6) -
AJAX JPL-6003246-A JPL6003246A Manual -
Eurorm 101-028-01-119-19-21 00 Temperature Control -
Sylvania KPM-1A Conversion Kit For PM Relay KPM1A 55700 (Pack of 6)
Allen Bradley 1771-DCM/B Direct Communication Module B03
Parker 924455 Filter (Pack of 3)
Generic MT8LSDT1664AG-13EG3 Circuit Board PC133U-222-542-Z -
Panalarm 50-F1 50F1 Relay 120V 60CY (Pack of 3) -
Xym 70566-001 Circuit Board -
Mitsubishi A24MC Circuit Board BC 186A201G52 -
Allen Bradley 700S-CF530DJC Relay 700SCF530DJC (Pack of 6) -
MRC Bearing 130R Bake Bearing
Square D 8030 ROM-441X 32 Function 24VDC Output Module Series E2/F1
Schneider TSXSCM2214 TSX SCM 2214 RS232C IS/RS485 -
Allen Bradley 800H-2HAM Push Button Enclosure 800H2HAM -
Dwyer 170119-00 Series 1800 Pressure Switch
Ronan X51NSM1-115 Control Unit -
Square D Schneider 8810DCG3 Combination Motor Starter W/Encl
Industrial Magnetic EL50794-110VDC Electromagnet -
Fenner 12M03-00111-02 Reflex Model 217 Universal Closed Loop Control Board
Magnetec 4008-P3S2 CIMR-V7AM43P7 Impulse P3 Motor Control Series 2
Nachi TS-4135-E33 AC Servo Motor
Ohmite RPS400 Rheostat 225 Watts 400 Ohms #1265 Model P
Reliance Electric 0-49008-2 Cardpak Limit Module
Part 308 A Junction Box Board 459202 3 Cell -
Invensys 1927107WA-00 Motor 1927107WA00 -
Allen Bradley 1746-NIO4I/A SLC 500 Analog Combination I/O 2006
Honeywell 620 Series 620-0071 Logic Manager Module VR 2.5 Rev. F
Square D MAL36500 500 Amp Industrial Circuit Breaker 600VAC without covers
General Electric CR120A03302AA Relay Series A -
KEBA / ICT TP-TSX-CHR Teach Pendant HT401-222-4/0/21572
Parker CS025V2F10 I20 T11 M00 Compax3 Brushless AC Servo Drive w/o Blocks
AC & R mponents S-7102 S7102 Refrigerant Accumulator R12-R22-R502A20B-2900-0380 05C _ A20B2900038005C _ A2OB-29OO-O38O/O5C
Allen Bradley 2711-T10C15 PanelView 1000 Operator Interface Series C Rev. B
Electronic Concepts 5PT-18130J Capacitor .20 UF, 460VAC, 800VDC Free Ship
Allen Bradley 700-N600A1 Control Relay 700N600A1 Series C (Pack of 3) -
Karo Electronics 981208555 Circuit Board 4000087
Square D FA34020 I-Line Circuit Breaker 20 Amps 480VAC
Browning 3C106R Sheave 3-Groove 4 In-Groove Holes
Keyence CV-301 Controller For Color Vision System
Fanuc A20B-2900-0160/02A Memory Module A20B2900016002A -
Pilz PNOZ X8P 120VAC Relay 777765 -
Lenze 14.448.18.010 Electromagnetic Clutch 1444818010 E Without Mount Pins
Leeds And Northrup 173050 P.A.T Controller -
Sieb&Meyer CSS90 43.01.05.2 L930511V Station I/O Board -
Control Techniques MD-404-00-000 Servo Drive Module 960486-05 Rev. A2
Allen Bradley 1794-ADN/B Flex I/O Adapter C01
Ferraz Shawmut A480R9R-1 Amp-trap Current Limiting Fuse 2400V/4800V
Eupec TT 75 N 16 KOF 19E4 Powerblock Thyristor Module -
Ferlin IO-01-F Circuit Board -
Allen Bradley 350-BAV111 Reversing Drum Switch 350BAV111 -
Square D 52046-170-50 Entry Panel Ver 1.08 97189846 - Refurbished
Schneider TSXDEY64D2K Premium Sink Connection Input Module
GE Fuji Electric 6KP1143010X1B1 Variable Frequency Drive AF-300 P11 10 HP
Siemens C79040-A0092-C196 06/85 Circuit Board C79040A009201960685 -
Catel APS-1000 Automatic Protection Switch -
Frog Navigation RS232 AGV Terminal -
American Gear 27570-35-003-4 Spline (Pack of 6) -
Boston Gear ORC1SPCHP12P22 ORC 1SPCHP12P22 Clutch
BEI Motion Systems Company 819-05-9008 819059008 Encoder -
Automated Packaging 58536A1 H-100 Power Supply Board -
Square D 9007-C54B2 Limit Switch 9007C54B2 (Pack of 3)
Bently Nevada 3300 Series Tachometer Module 3300/50-02-01-00-00
Issc 300-CMI6 ISSC 300CMI6 Memory Board B-16-09-101 Rev. E - Refurbished
Piller 48.2.196.1845 Base F&V Monitor Module
6ES5-244-3AB31
Allen Bradley 1771-IQ 5-30V DC Selectable Input Module SD0XT3ED 960017 -
Fanuc A06B-6064-H303#H550 Spindle Servo Drive Unit A16B-2201-0440/02A
Allen Bradley 975192-07 I/O Scanner 975196-01 Rev FT05 -
S&C 613150 SMU-20 Power Fuse Refill Unit 25-27 kV 150E Amps
Ansell 27-607 Hycron Nitrile Coated Gloves Size 8 (Pack of 36)
Allen Bradley 96522003 Module 1771-IS DC Series A Rev. B -
Fisher Controls 66R Vapor Recovery Valve 66R-5 -
Westinghouse 4PCQL7 Interface Board 3A99141G01 Rev. 12
Sequential SLP/80-360-16-01A(0) SLP/80-360-16-01A (0) Limit Programmer
Schneider TSXSCM2214 TSX SCM 2214 RS232C IS/RS485 (Pack of 3) -
Cleaver Brooks 985-96 CB Hawk DC Input 118-2934
Schneider 140 CRA 211 10 140CRA21110 Adapter/Power Supply
SKF MP-10923 Cylindrical Roller Bearing
Visi-Trak A49-1120P Transducer A491120P (Pack of 3) -
GE Fanuc IC693MDL730E 12/24VDC 8PT Output Module
Square D 1828-C20 Terminal Block 1828C20 (Pack of 50) -
Solartron T3000-03-232-2006-XX-XX-13 Transmitter -
Hitachi CPUY (SVP) Control Board PCB 2Y000925-4 Rev. A
Allen Bradley 1791-32B0 Block 1791-32BO Series B
ITW Ransburg 74735 Power Board Assembly 74734 Rev. A
Allen Bradley 836T-T351JX121X9 Pressure Control Series A (Pack of 3)
Banner MSR3624 Mini-Screen Black Anodized Receiver 37461 -
port Electronics 2003B-LA1 Digital Meter
General Electric 531X126SNDAEG1 Snubber Card DS-1 -
GE Fanuc IC693MDL645D POS/NEG Logic Input Module 90-30 GE Fanuc IC693PWR321T Power Supply Module 90-30 w/o cover
Allen Bradley 1756-ENET/B ControlLogix Ethernet Interface Module Rev. B01
Kristel 751B-AD1 Monitor Screen Display 49007678000D -
Ifm Efector PN7004 Sensor PN-010-RBR14-QFRKG/US/ /V (Pack of 3)
General Electric 6VFW2300 A3 Motor Control -
Siemens 6FX1111-1AA01 Board 6FX11111AA01 PSI Services - Refurbished
Mitsubishi FX0n-16EX Programmable Controller VGC!!! Free
Allen Bradley 700-P600A1 AC Relay 700P600A1 Series B (Pack of 3) -
Allen Bradley 1771-IAD/D 120VAC/DC Input Module Rev. C01
General Electric 531X133PRUAPG1 Interface Card -
Honeywell 51304754-150 UCN High Level Analog Input Card HW R S FW D
Baumer BDT 16.05A120/403877 BDT1605A120403877 CH-8500 -
Allen Bradley 1771-OZ 1771OZ Contact Output Module SDOAZ3BL -
Diversified Technology CRR807 PC Control Board 651000807
Am Lock & Co MET20UP . MET 20UP MET-20 MET 20 Circuit Board -
Part 471771 PCB Circuit Board AHT001 0937 582 012 01 01 -
Allen Bradley 1771-IA Module 1771-1A Quanity (Pack of 3) -
Gretna Gage & Engineering TL.24218025T3 Gage (Pack of 6) -
SCA APC3000-32 Board 0153.0302
Advance ntrols 130177 HVAC Control
Allen Bradley 1775-RM PLC-5 Peripheral Interface Module
GE Fanuc IC693BEM320C I/O
GE TH3361J Safety Switch 30 Amp 600 Volts Free
ABB 3HAB2220-1 Memory Module Expansion Missing Clip (Pack of 2) -
Reliance S-12011-1T Rectifier Stack (Pack of 3) -
Fanuc A06B-0522-B543#0008 Model 1-0 AC Servo Motor
Syron #LAA1073LXX/1074LXX Cable Assembly
Fireye Type EPD 382 Flame Monitor Programmer Module
Moog D664-353K Valve Type: P05HXMMFNVB0 - Refurbished
Vickers 737322 Pressure Filter OFP-35-S-11 -
Wirtz Mfg. 190152 Sync Control Board Revision: C (Pack of 3) -
Accu-Coder 714 Incremental Shaft Encoder
Unico 317-852 317852 Circuit Board -
Allen Bradley 975882-05 Error Corr Ram Mem 1775-MEA Rev A01 -
Intel 143461-013 143461013 Circuit Board -
Fanuc A20B-2900-0590/01A Module A20B2900059001A -
SCA APC3000-31 Circuit Board 0153.0301
Square D 9070T150D1 Industrial Control Transformer 0.15 kVA
Veeder-Root 198106-001 Veeder-Root 198106001 Counter -
Ifm Efector PN7004 Sensor PN-010-RBR14-QFRKG/US/ /V (Pack of 3)
Mac Valves PR92C-M0AB Valve Regulator PR92C-MOAB (Pack of 6)
Allen Bradley 1756-L55M13 Processor w/1.5MB Memory 1756-L55 1756-M13
Toyoda MC1K-U100VS Motion Controller Servo Amplifier
General Electric TEF134030 Circuit Breaker 30 Amps 480VAC
ABB 3HAB2219-1 Main CPU Board DSQC 316 S4 M96
Allen Bradley 1771-P4S/B Power Supply Module
Robotron 453-0-925-01 453-0-925-0 Pc Board Serial 219360 -
Modicon AS-B827-032 24VDC Input Module
Roll-A-Matic 8661283T0116-R Burnish Tool 105-1576 -
ABB Stal 720068 Turbine Controller Automatic Mode Switch Card AE 25001 K3
Moeller PKZM0-2.5 Manual Motor Protection PKZMO 1.6-2.5 Amp
Vickers QF 8 FF 10A1 DG4V-3S-6C-M-FPA5WL-B5-60 -
Allen Bradley 1784-CP2/B Cable Assembly 1784CP2 (Pack of 3) -
SMC MXQ16-75 Adjustable Stroke Slide Table Cylinder Actuator -
Allen Bradley 1772-LG Processor Control Module -
GE CR104PLT22R Red Indicator / Pilot Light
Allen Bradley 1492-CAB005E69 Pre-Wired Cable for 1769 Digital I/O 0.5M Long
Yaskawa CACR-SR44TZOSM Servopack Servo Controller CACR-SR44TZ6SME
Allen Bradley #1771-OA (120V) AC output Module VGC!! Free
Mannesmann Rexroth 2FRE 10-42/50L Solenoid Valve 00415446
Brad Harrison 22903 Safety Plug Receptacle (Pack of 6)
Gleason 25970010 Circuit Board -
Square D MXL36200 200 Amp Electronic Trip Circuit Breaker 3 Pole ARP080
Schem 46204-1 Circuit Board 462041 CMU 314 -
Honeywell 30735863-001 Switching Board 30735863001 -
Knoll Group OCC36-8 OCC368 Type 1 Cable - 33" Length (Pack of 6) -
General Electric SEHA36AT0100 Spectra RMS Circuit Breaker 100 Amps 600VAC
Allen Bradley 1492-WFB10 Fuse Holder Free
Allen Bradley 1794-IB16 Module 1794-1B16 (Pack of 3) -
Inter
Issc D-16-09-001 Board D1609001 Rev. J (Pack of 3) -
Sola/hevi-duty 63-23-112-4 Transformer 63231124 -
Sensus SCFX100 Act-Pak BKZ 1200 TPL-9 Red Lion 1974982
Square D FA34070-5313 I-Line Circuit Breaker 70 Amps 480VAC
Allen Bradley 1785-LT/B PLC-5/15 Processor Module Rev. E
idec IBRC4102FM IZBARL Contact Signal Transducer
Square D QBL32070 PowerPact Circuit Breaker 70 Amps 240VAC
Emerson 2600-4000 DC Drive Board Rev. D
Oriental Motor E0439-444 E0439444 Reversible Motor (Pack of 3) -
Allen Bradley 1771-OAD Module 1771-0AD SD1LB1ZL -
Miller / MPCS 148421 PC Interface Board
Bussmann FWH-1000A Fuse FWH1000A
Helm B10C301-2 Circuit Board B10A301-2S Z23180 -
Tucker B 345 E 110 343 Stud Welder Auxiliary Board AUX6
Fanuc A05B-2308-C300 Teach Pendant Case Only Broken Handle -
Allen Bradley 1774-P1 1774P1 96531201 Power Supply Module Series E
ABB S 203 U K 30A Circuit Breaker S203UK30A (Pack of 3) -
GE Fanuc IC693PWR322C Power Supply Module 90-30
免責(zé)聲明：（1）以上所展示的信息由企業(yè)自行提供，內(nèi)容的真實(shí)性、準(zhǔn)確性和合法性由發(fā)布企業(yè)負(fù)責(zé)，環(huán)球塑化網(wǎng)對(duì)此不承擔(dān)任何保證責(zé)任。我們?cè)瓌t上建議您優(yōu)先選擇“塑企通”會(huì)員合作! （2）同時(shí)我們鄭重提醒各位買/賣家，交易前請(qǐng)?jiān)敿?xì)核實(shí)對(duì)方身份，切勿隨意打款或發(fā)貨，謹(jǐn)防上當(dāng)受騙。如發(fā)現(xiàn)虛假信息，請(qǐng)向環(huán)球塑化網(wǎng)舉報(bào)。
簡繁切換