描述
我們首先將討論一個(gè)反激式轉(zhuǎn)換器拓?fù)?,因?yàn)榫驮骷?shù)目而言,它是最簡單的電路。反激式電路使用最少的開關(guān);本例中,僅在初級端使用了一個(gè)開關(guān),并在次級端使用了一個(gè)整流二極管。簡單反激式電路通常用于輸出功率相對較低的應(yīng)用中,但它確實(shí)具有高輸出紋波電流和低交越頻率,因?yàn)榇嬖谟野肫矫妫≧HP)零點(diǎn)。結(jié)果,反激式電路需要具備較大輸出紋波電流額定值的大輸出電容。圖1顯示采用光耦合器的方式,分流調(diào)節(jié)器在其中用作隔離式輸出電壓Vo的反饋電壓誤差放大器。分流調(diào)節(jié)器用作精確標(biāo)準(zhǔn)時(shí),可提供精度典型值為2%的基準(zhǔn)電壓。輸出電壓經(jīng)過分壓,然后由內(nèi)部誤差放大器將其與分流調(diào)節(jié)器的基準(zhǔn)電壓進(jìn)行比較,比較結(jié)果輸出至光耦合器的LED電路。光耦合器LED由輸出電壓和串聯(lián)電阻偏置,所需的電流量根據(jù)光耦合器電流傳輸(CTR)特性確定。
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主營:世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國西屋)系列產(chǎn)品》
⑤SIEMENS(西門子系列產(chǎn)品)》
⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(福克斯波羅):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
BALDOR SD23H4A08-E 5-10HP SERVO
BALDOR SD23H4A11-E 7.5-10HP SERVO
BALDOR SD23H4A15-E 10-20HP SERVO
BALDOR SD23H4A22-ER 15-25HP SERVO
BALDOR SD23H4A30-ER 20HP SERVO
BALDOR SD26M1A02-TR 2.5A-5A SERVO
BALDOR SD26M1A05-TR 5A-10A SERVO
BALDOR SD26M1A07-TR 7.5A-15A SERVO
BALDOR SD26M2A02-TR 2.5A-5A SERVO
BALDOR SD26M2A05-PO 5A-10A SERVO
BALDOR SD26M2A05-TR 5A-10A SERVO
BALDOR SD26M2A07-TR 7.5A-15A SERVO
BALDOR SD26M2A10-PO 10A-20A SERVO
BALDOR SD26M2A15-PO 15A-30A SERVO
BALDOR SD26M2A25-PO 25A-50A SERVO
BALDOR SD26M2A35-PO 35A-70A SERVO
BALDOR SD26M2A45-PO 45A-90A SERVO
BALDOR SD26M2A60-PO 60A-120A SERVO
BALDOR SD26M4A02-PO 2A-4A SERVO
BALDOR SD26M4A07-PO 7A-14A SERVO
BALDOR SD26M4A15-PO 15A-30A SERVO
BALDOR SD26M4A25-PO 25A-50A SERVO
BALDOR SD26M4A35-PO 35A-70A SERVO
BALDOR SD26M4A45-PO 45A-90A SERVO
BALDOR SD26M4A60-PO 60A-120A SERVO
BALDOR SPU02403001 SHUNT UNIT
BALDOR SUM4-100-1 SERVODRIVER
BALDOR T70 TORQUE CONTROL
BALDOR TENN410CC 10HP 460V AC DRIVE
BALDOR TSD-050-05-1-U DC SERVO CONTROL
BALDOR TSD-050-05-2-U DC SERVO CONTROL
BALDOR TSD-100-05-1-U DC SERVO CONTROL
BALDOR TSNM-150-06-01 SERVO DRIVER
BALDOR TSNM-180-12-703 SERVO DRIVER
BALDOR UM1506-100 SERVODRIVER
BALDOR UM1506HO-100 SERVODRIVER
BALDOR UM1506HS-100 SERVODRIVER
BALDOR UM2-100-1-02S 2-AXIS SERVO DRIVE
BALDOR UM2-100-1/W1 SERVO W/1 AMP
BALDOR UM2-150-1/WO SERVO CHASSIS
BALDOR UM2015-100 SERVODRIVER
BALDOR UM2015-150 SERVODRIVER
BALDOR UM3012-100 SERVODRIVER
BALDOR UM3015-100 SERVODRIVER
BALDOR UM3015-150 SERVODRIVER
BALDOR UM3015CS-150 SERVODRIVER
BALDOR UM3015HC-100 SERVODRIVER
BALDOR UM3015HO-100 SERVODRIVER
BALDOR UM3015HO-150 SERVODRIVER
BALDOR UM3015HS-100 SERVODRIVER
BALDOR UM3015HS-150 SERVODRIVER
BALDOR UM4-100-1/W4 SERVO W/4 AMPS
BALDOR UM4-100-1/WO SERVO W/O AMPS
BALDOR UM4-100-2/WO SERVO W/O AMPS
BALDOR UM4-100/WO SERVO W/O AMPS
BALDOR UM6-150/WO SERVO W/O AMPS
BALDOR V0073120 CONTROL MODULE
BALDOR V0073400 CONTROL MODULE
BALDOR V0083752N LOGIC P/S BOARD
BALDOR V0086351K SIG INTERFACE BOARD
BALDOR VE0003A02 20HP 460V AC DRIVE
BALDOR VE0059A02 30HP 460V AC DRIVE
BALDOR VE0082A01 15HP 460V AC DRIVE
BALDOR ZD14205-E 5HP 230V AC DRIVE
BALDOR ZD14207-E 7.5H 230V AC DRIVE
BALDOR ZD14210-E 10HP 230V AC DRIVE
BALDOR ZD14215-E 15HP 230V AC DRIVE
BALDOR ZD14225-E 25HP 230V AC DRIVE
BALDOR ZD14240-E 40HP 230V AC DRIVE
BALDOR ZD14250-E 50HP 230V AC DRIVE
BALDOR ZD14405-E 5HP 460V AC DRIVE
BALDOR ZD14410-E 10HP 460V AC DRIVE
BALDOR ZD14415-E 15HP 460V AC DRIVE
BALDOR ZD14425-E 25HP 460V AC DRIVE
BALDOR ZD14430-E 30HP 460V AC DRIVE
BALDOR ZD14450-E 50HP 460V AC DRIVE
BALDOR ZD14475-E 75HP 460V AC DRIVE
BALDOR ZD17H201-E 1HP 230V AC DRIVE
BALDOR ZD17H201-W 1HP 230V AC DRIVE
BALDOR ZD17H202-E 2HP 230V AC DRIVE
BALDOR ZD17H202-W 2HP 230V AC DRIVE
BALDOR ZD17H203-E 3HP 230V AC DRIVE
BALDOR ZD17H203-W 3HP 230V AC DRIVE
BALDOR ZD17H205-E 5HP 230V AC DRIVE
BALDOR ZD17H205-W 5HP 230V AC DRIVE
BALDOR ZD17H207-E 7.5H 230V AC DRIVE
BALDOR ZD17H207-W 7.5H 230V AC DRIVE
BALDOR ZD17H210-E 10HP 230V AC DRIVE
BALDOR ZD17H210-W 10HP 230V AC DRIVE














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