6ES7901-0BF00-0AA0 计数器
主要包括3.3v电压调整器及基准电压源、脉宽调制器(PWM)、驱动逻辑、推挽式驱动器、欠压关断电路、限流电路、电流检测电路。UCD8220/8620可运行在峰值电流模式或电压模式，不仅能对极限电流进行编程，还输出一个能受主控制器监控的极限电流数字标志。UCD8220/8620的时序工作波形如图3所示。
数字信号处理器(DSP)
UCD9501是TI公司专为数字电源系统配套的数字信号处理器，其同类产品还有TMS320F2808，TMS320F2806。它们内部主要包含100MHz的32位CPU、时钟振荡器、3个32位定时器、看门狗电路、内部/外部中断控制器、SCI总线、SPI总线、CAN总线及IC总线接口、l2路PWM信号输出、系统控制器、16通道12位。ADC、16K×16 Flash、6K×16SARAM、1K×16ROM。它采用标准的3.3v输入/输出接口，与UCD8K系列完全兼容。利用Power PADTMHTSSOP，和QFN软件包可进行编程。
电路设计
智能化数字电源系统可由PWM、电源驱动器、DSP、接口电路、显示器和键盘6部分组成。系统框图如图4所示。
交流电压经过整流滤波后获得的+36～72v直流输入电压U1，接高频变压器的初级绕组;还经过R1、R2分压后，分别接UCD9501的模拟输入端AN1及AN2。初级绕组的另一端接功率MOSFET。R3为限流电阻。R4为电流检测电阻。偏置绕组的输出电压通过VD1、C1整流滤波后得到+12v的直流偏压，接UCD7100的电源端(UDD)。UCD7100输出的3.3v电压为UCD9501提供电源。次级整流滤波电路由VD2、L和C2组成，VD3为续流二极管，UD为直流输出电压。从UCD9501输出的脉宽调制信号(PWMA)送至UCD7100的IN端。UCD7100的极限电流标志端(CLF)接UCD9501的中断端(INT)，极限电流设定端(ILIM)接UCD9501的GMTR端。利用光耦隔离放大器可将输出级与输入级进行隔离。
当UDD=12V，UCD7100的负载电容CLOAD=10nF,开关频率f=300kHz时，偏置功耗为P=CLOADUDD2=10nF*(12v)2*300kHz=0.432W。偏置电流I=P/UDD=0.432W/12V=0.036A。
若采用UCD7201，则可驱动两只外部功率MOSFET。此外还可用UCD9501和UCD8620组成数字电源系统。
结语
数字电源系统具有高集成度、高性价比、电源管理功能完善、外围电路简单、能面向用户设计等显著优点，为实现智能化电源系统的优化设计创造了有利条件。
伺服控制是为满足某种目的，产生运动和对物体运动进行控制是我们人类重要的活动之一。伺服控制是对物体运动的位置、速度及加速度等变化量的有效控制。
listing YOKOGAWA F3LD01-0N , DeviceNet I/F PLC unitsn:1034
listing YOKOGAWA F3LE11-0T , ETHERNET PLCunit sn:2570
listing YOKOGAWA F3LR02-0N , FABUS2 PLCunit sn:5060, as photos.
listing YOKOGAWA F3PU10-0N , Power Supplyunit PLC sn:7064, as photos.
listing YOKOGAWA F3PU20-0N, Power SupplyPLC unit sn:7033, as photos.
listing YOKOGAWA F3WD64-3N , IO unit PLCsn:8025, as photos.
listing YOKOGAWA F3XP01 Pulse input ,PLCmodule sn:012126, as photos, Promotion.
listing YOKOGAWA F3XP01 Pulse input ,PLCmodule sn:152027, as photos.
listing YOKOGAWA F3YP14-0N , Position unitPLC sn:3023
listing YOKOGAWA model 3087 308721 RECORDER-b
listing Yokogawa model mfcu field controlunit
listing Yokogawa MY4001 Digital InsulationTester
listing Yokogawa PF500A / PU952B AdviceIn-Circuit Emulator Orion ICE JTAG & Probe
listing Yokogawa Pressure TransmitterYA43F-SAS4
listing Yokogawa R7308HG-01, Hi speed 2wire remote Input16 Output16,24Vdc
listing Yokogawa SC41-EP15 PLC IndustrialAutomation Conductivity Analyzer Sensor
listing Yokogawa Service Manual For Model2433 Clip On AC Power Meter
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listing YOKOGAWA UT321-20 UT32120
listing YOKOGAWA VINTAGE DC AMMETER WITHCASE
listing YOKOGAWA ZR22G, ZIRCONIA DETECTORSensor as photos, sn:8883.
LOT OF 2 NIB YOKOGAWA SIGNAL CONDITIONERESCA ESC*A (311)
LOT OF 3 YOKOGAWA SIGNAL CONDITIONER ECOAEC0A (306)
LOT OF 4 NIB YOKOGAWA SIGNAL CONDITIONERE02A EO2A (311)
LOT OF 4 NIB YOKOGAWA SIGNAL CONDITIONEREA2*A EA2A (311)
LOT OF 4 NIB YOKOGAWA SIGNAL CONDITIONERECOA EC0A (311)
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NO BOX YOKOGAWA INPUT CARD EA1 SUFF *AK4J01033 (DR1F-2)
NO BOX YOKOGAWA INPUT CARD ER5 SUFF *BINPUT 0~200 PT 100 (DR1F-2)
NO BOX YOKOGAWA OUTPUT ISOLATOR CARD EA0SUFF *A (DR1F-2)
NOS Yokogawa 152141LSSN A/C Amperes PanelMeter 0-800 Amperes GE
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UN YOKOGAWA0-5250 VAC PANEL MOUNT VOLTMETER 103021PZUL
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YOKOGAWA 250240 LSXS 0-150% PERCENT PANEL150V-AC METER B411682
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Yokogawa 251 420, 0-90v Voltage Meter - SKU6.15-1447
YOKOGAWA 251221MT/DC3969 DC AMPERES PANELMETER -/+250 ADC 2-5/8" x 3-1/16"
YOKOGAWA 251240LSMT A-C AMPERES PANEL METER0-10 5AAC 2-5/8" L x 3-1/16" W
YOKOGAWA 251240LSND AC AMPERES PANEL METER2-5/8" L x 3-1/16"W
Yokogawa 251240LSND AC Amperes Panel Meter2-5/8" L x 3-1/16"W
Yokogawa 251240LSNG 0-20 AC Amperes PanelMeter 2-5/8" L x 3-1/16"W
YOKOGAWA 251339LSZZ PANEL METER SCALE:0-100 AC AMPERES 251-339-LSZZ
YOKOGAWA 25140LSSF AC AMPERES PANEL METERRANGE 0A-500A 3-7/8" FACE
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YOKOGAWA 254209FAZZ8 PANEL METER
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YOKOGAWA 254329ECZZ8 0-150A AMP DC D-CAMPERES AMMMETER PANEL METER B473506
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YOKOGAWA 255-3 PANEL METER
YOKOGAWA 260200BZBZ 0-10 DC D-C MICROAMPERES BRANOM PANEL METER B473534
YOKOGAWA 260320RLRL9JBS 0-200 DC VOLT PANELMETER D514031
YOKOGAWA 260340NL-NL1 PANEL METER260340NLNL1
YOKOGAWA 2830-1041-SJSJ METER 0-60028301041SJSJ
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YOKOGAWA 30960671 PURPLE B9902AQ-KC 3PACK
YOKOGAWA 30960689 PURPLE B9902AR 3 PACK
Yokogawa 3226-10 Leakage Current TesterAC/DC Meter 1.8VA JIS C-1102
YOKOGAWA 36A362513CE001 175-0-175 LOADCURRENT PANEL METER
YOKOGAWA 36A362717BE001 0-10 AMPS PANELMETER
YOKOGAWA 36A362717BF010 0-400 AMPS PANELMETER
YOKOGAWA 36A362717DB004 600-0-600 VOLTSPANEL METER
YOKOGAWA 4-1/2" 250 PERCENT MOTOR LOADCURRENT ANALOG PANEL METER
YOKOGAWA 50-152111NLNL2 PANEL METER50152111NLNL2
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Yokogawa 65K3122 Panel Meter;Range andScale 0-1 DCMA INV=15816
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YOKOGAWA 7VKYB013AM28 2500-0-2500 R.P.M.PANEL METER
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YOKOGAWA 7VZFX048AM02 0-1500 R.P.M. PANELMETER
YOKOGAWA 820-00-0-RMA2 DIGITAL PANELMETER
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Yokogawa A/D-Servo AMP Assy B9573/UEController Card
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YOKOGAWA AAV144-S00 #ZL02
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