廈門興潤星貿易有限公司
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<ul id="qqie6"></ul> 廈門興潤星貿易有限公司
| 產地 | 進口 | 加工定制 | 是 |
|---|
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
配件B & R PLC CPU module X20CP1584 X20 CP 1584
級聯二極管H橋變頻器
圖2所示是單相級聯二極管H橋變頻器主電路。整個變頻器系統由級聯二極管H橋整流級、高頻隔離傳輸級和級聯H橋逆變級依次串聯構成。與目前主流的級聯全控型H橋整流器不同，級聯二極管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。由于二極管的單向導電性，級聯二極管H橋整流器可應用于不需要能量雙向傳輸的場合，如拖動中高壓風機、泵類的交流調速領域。
2.2 級聯無橋變頻器
圖3所示是級聯無橋變頻器主電路拓撲。與級聯二極管H橋變頻器類似，級聯無橋變頻器通過將基于無橋結構的整流單元級聯起來構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，級聯無橋變頻器同樣適用于能量單向傳輸的交流拖動場合。
值得注意的是，與級聯二極管H橋變頻器整流級相比，級聯無橋變頻器整流級使用的全控型開關器件的數量多一倍，但同時，任意時刻級聯無橋變頻器整流級導通的半導體開關器件只有級聯二極管H橋變頻器整流級的2/3。因此，這兩種新型級聯變頻器的性能各有千秋，具體工業應用中可根據實際工況和具體性能指標要求選擇相對更合適的拓撲結構。
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
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