配件B & R PLC CPU module X20CP1584 X20 CP 1584
配件B & R PLC CPU module X20CP1584 X20 CP 1584
配件B & R PLC CPU module X20CP1584 X20 CP 1584
级联二极管H桥变频器
图2所示是单相级联二极管H桥变频器主电路。整个变频器系统由级联二极管H桥整流级、高频隔离传输级和级联H桥逆变级依次串联构成。与目前主流的级联全控型H桥整流器不同，级联二极管H桥整流级的每个功率单元由一个二极管全桥整流电路和Boost PFC电路串联组成。与图1所示电路相比较，图2所示电路少用了几乎一半全控型开关器件。由于二极管的单向导电性，级联二极管H桥整流器可应用于不需要能量双向传输的场合，如拖动中高压风机、泵类的交流调速领域。
2.2 级联无桥变频器
图3所示是级联无桥变频器主电路拓扑。与级联二极管H桥变频器类似，级联无桥变频器通过将基于无桥结构的整流单元级联起来构成整流级从而减少全控型开关器件的使用。由于无桥电路的工作特性，级联无桥变频器同样适用于能量单向传输的交流拖动场合。
值得注意的是，与级联二极管H桥变频器整流级相比，级联无桥变频器整流级使用的全控型开关器件的数量多一倍，但同时，任意时刻级联无桥变频器整流级导通的半导体开关器件只有级联二极管H桥变频器整流级的2/3。因此，这两种新型级联变频器的性能各有千秋，具体工业应用中可根据实际工况和具体性能指标要求选择相对更合适的拓扑结构。
ALCA 2C7-4032-000 QUARTZ RING (MIDDLE)
ALCA 2C7-4101-050 WAFER GUIDE
ALCA 2C7-4434-020 COOLING PIN(SHORT)PC7-4434-020 MAS-8200
ALCA 2C7-4516-000 QUARTZ RING (UPPER)
ALCA 2C7-4576-000 HEATER
ALCA 2C7-4578-000 PCB D/A BOARD
ALCA 2C7-4579-000 PCB A/D BOARD
ALCA 2C7-5027-000 JDAS20?10-834W
ALCA 2C7-5921-000 LM GUIDE
ALCA 2C7-6343-000 SV POWER SUPPLY K150A
ALCA 2F6-4916-000 ROBOT HAND (UPPER)
ALCA 2F6-4917-000 ROBOT HAND (LOWER)
ALCA 2F6-4920-000 TC SENSOR (MAIN)
ALCA 2F6-4922-000 COOLING FLOW METER
ALCA 2G6-2285-000 QUARTZ INNER TUBE KIT FOR LOW TEMP MAS800 MACHINES
ALCA 2G6-2498-000 ROBOT CONTROLLER (APC8000)
ALCA 2G6-2499-000 HEATER CONTROLLER
ALCA 2G6-2509-000 QUICK COUPLER FOR CHAMBER COOLING WATER
ALCA 2G6-2511-000 QUICK COUPLER FOR CHAMBER COOLING WATER
ALCA 2G6-2512-000 QUICK COUPLER FOR CHAMBER COOLING WATER
ALCA 2H0-4087-000 PHOTO SENSOR CASSETTE STATION EE-SX670 AAS
ALCA 2H0-4186-000 PHOTO DIODE FOR EPO
ALCA 2H0-4216-000 OPTICAL SENSOR(AMPLIFIER FOR APPEX ROBOT)FX-7
ALCA 2H3-4653-000 MOLEX FEMALE 3 WAY CONNECTOR
ALCA 2H3-4654-000 MOLEX MALE 3-WAY CONNECTOR
ALCA 2H4-0166-000 PCB MAIN CPU BOARD VME-1000
ALCA 2H4-0167-000 PCB SLAVE CPU BOARD
ALCA 2H4-0168-000 PCB DIGITAL INPUT BOARD VME-1220
ALCA 2H4-0169-000 PCB DIGITAL OUTPUT BOARD VME-1230
ALCA 2H4-0170-000 PCB ANALOG INPUT BOARD VME-12000
ALCA 2H4-0171-000 PCB ANALOG OUTPUT BOARD 12CH
ALCA 2H4-0172-000 PCB POWER MONITOR BOARD 5085B9102C
ALCA 2H4-0174-000 PCB TEXT DISPLAY BOARD VME-1300
ALCA 2H4-0175-000 PCB COMMUNICATION BOARD RS-232C/422A
ALCA 2H4-0177-000 PCB MEMORY BOARD SOI VME-1110
ALCA 2H5-0060-00 HEATER CONTROLLER HC-1000
ALCA 2H5-0067-000 MICRO WAVE CONTROLLER MAS-8000/8200
ALCA 2H5-0072-000 MICROWAVE POWER MONITOR
ALCA 2H5-0075-000 MICROWAVE UNIT STABILIZER TUNING STUB&ASSEMBLY
ALCA 2H5-0083-000 MICRO WAVE INSPECTINGWAVE UNIT
ALCA 2H5-0162-000 4E TUNER
ALCA 2H5-0172-000 3 PORT SWITCHING UNIT
ALCA 2H5-3133-000 DC POWER SUPPLY UNIT M82DCP-A
ALCA 2S2-0256-000 SLIDE BUSH LOWER CHAMBER SMSF12UU
ALCA 2S2-5138-000 SLIDE BUSH(LOWER CHAMBER)SMSK35UU
ALCA 2T3-0150-000 BARATRON SEAL O RING
ALCA 2T3-0154-000 O RING P-50
ALCA 2T3-0212-000 O RING CHAMBER WALL FITTING P12 U-HEAT PROOF SILICON
ALCA 2T3-0213-000 O RING QUARTZ BELLJAR (UPPER) U-HEAT PROOF SILICON
ALCA 2T3-0294-000 O-RING VITON GS-330 (UPPER CHAMBER 2)
ALCA 2T3-1042-000 O RING QUARTZ BELLJAR (LOWER) G240 HEAT PROOF SILICON
ALCA 2T3-1054-000 O-RING NW25 (VITON)
ALCA 2T3-1055-000 O-RING NW16 (VITON)
ALCA 2T3-1078-000 O RING G255 STAGE U-HEAT LOW TEMP ASH BLUE SILICON
ALCA 2T3-1080-000 CHAMBER WALL SEAL O RING VITON (UPPER) LOW TEMP ASH
ALCA 2T3-1083-000 O RING MAGNETIC SEAL S-24 RED SILICON
ALCA 2T3-1084-000 O RING MAGNETIC SEAL S-36 RED SILICON
ALCA 2T3-1085-000 O-RING 1516-5 U-HEATPROOF SILICON
ALCA 2T3-1087-000 BELLOW O-RING G-50 CHAMBER PORT U-HEAT PROOF SILICON
ALCA 2T3-1090-000 O-RING GS-190 U-HEATPROOF SILICON
ALCA 2T4-6104-000 CHECK VALVE(N2 DISTRIBUTION)FUCL-715-66.35-0.07
ALCA 2T4-9009-000 STAGE COOLING WATER PURGE VALVE UBVH-14B
