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
級聯(lián)二極管H橋變頻器
圖2所示是單相級聯(lián)二極管H橋變頻器主電路。整個變頻器系統(tǒng)由級聯(lián)二極管H橋整流級、高頻隔離傳輸級和級聯(lián)H橋逆變級依次串聯(lián)構(gòu)成。與目前主流的級聯(lián)全控型H橋整流器不同，級聯(lián)二極管H橋整流級的每個功率單元由一個二極管全橋整流電路和Boost PFC電路串聯(lián)組成。與圖1所示電路相比較，圖2所示電路少用了幾乎一半全控型開關器件。由于二極管的單向?qū)щ娦?，級?lián)二極管H橋整流器可應用于不需要能量雙向傳輸?shù)膱龊?，如拖動中高壓風機、泵類的交流調(diào)速領域。
2.2 級聯(lián)無橋變頻器
圖3所示是級聯(lián)無橋變頻器主電路拓撲。與級聯(lián)二極管H橋變頻器類似，級聯(lián)無橋變頻器通過將基于無橋結(jié)構(gòu)的整流單元級聯(lián)起來構(gòu)成整流級從而減少全控型開關器件的使用。由于無橋電路的工作特性，級聯(lián)無橋變頻器同樣適用于能量單向傳輸?shù)慕涣魍蟿訄龊稀?/span>
值得注意的是，與級聯(lián)二極管H橋變頻器整流級相比，級聯(lián)無橋變頻器整流級使用的全控型開關器件的數(shù)量多一倍，但同時，任意時刻級聯(lián)無橋變頻器整流級導通的半導體開關器件只有級聯(lián)二極管H橋變頻器整流級的2/3。因此，這兩種新型級聯(lián)變頻器的性能各有千秋，具體工業(yè)應用中可根據(jù)實際工況和具體性能指標要求選擇相對更合適的拓撲結(jié)構(gòu)。
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
