山東中發(fā)CABUR XCSG2401G 電源報(bào)價(jià)
交流電的過(guò)零點(diǎn)檢測(cè)方案較多，目前較常見(jiàn)的也是我之前所使用的方案如所示：交流電光耦過(guò)零檢測(cè)電路的電路可以檢測(cè)到交流電經(jīng)過(guò)零點(diǎn)的時(shí)間，但是它存在諸多的弊端，現(xiàn)列舉如下：電阻消耗功率太大，發(fā)熱較多。220V交流電，按照有效值進(jìn)行計(jì)算三個(gè)47K的電阻平均每個(gè)電阻的功率為220^2/(3*47k)/3=114.42mw。對(duì)于0805的貼片電阻按照1/8w的功率計(jì)算，當(dāng)前的消耗功率接近其額定功率，電阻發(fā)熱大較大。
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LJU 60060970
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PNEUMAX 2.43553E+11
RIEGLER 251.08-ES
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UNIVER M1000250035M
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APL 61B0 44T0
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SCHNEIDER ZB6YC317
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PNEUMAX 13035008001A
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CABUR GTA090050B CONF. 50M POL ADES AUTOES UL 3:1 125
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英國(guó)ONDRIVES變速箱和減速器UPSG1.5-38PH-K
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HENGSTLER 566442 GEBER AC58/0412EK.42PBA-A1-F
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MD MICRODETECTORS傳感器MDI38G 1922
PALAZZOLI PT7320412E MOON 270 SF.LED 32W BN 4000K (21°) EL
SELET傳感器OCV81/D3APSCMC5
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英國(guó)ONDRIVES變速箱和減速器UPHG1.0-290LH-K
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UNIVER W1000250060
CAMOZZI 32R2A080A290 32R2A080A290 CILINDRI COMPATTI SER.32R
UNIVER RT2200500450
RIEGLER ES 90
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CAMOZZI 61M6P032A0050 61M6P032A0050 CILINDRI SERIE 61
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PALAZZOLI 480236 PRBLF QUAD 3P+T 32A 380V 6H 55 TER
RIEGLER 515.511
PNEUMAX RSCP2000270390
英國(guó)ONDRIVES變速箱和減速器P45-120
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PNEUMAX 13198004601
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DATALOGIC 957801490 SG2-50-075-OO-E-C 50mm res EDM Coded
EUROTEK 2276 ET-MP/D25SUB/M/SMD/L/M
MD MICRODETECTORS傳感器MDI58C 1294
MD MICRODETECTORS傳感器MDI58G 324
HENGSTLER 524638 GEBER RI58-O/ 1250AS.41TE-E
CAMOZZI 62M2P040RL1000 62M2P040RL1000 CILINDRI SERIE 62
CAMOZZI 338-945S08 338-945S08 VALVOLE A SPOLA
Rexroth HMS01.1N-W0070-A-07-NNNN
AVENTICS A502A3000069531
SCHNEIDER M9F22113
PENNY+GILES電位計(jì)SLS190/50/2k/L/66/1
MD MICRODETECTORS傳感器MDI58F 2465
CAMOZZI 25-25/3C 25-25/3C VITE AMMORTIZZO PREM. PREMONTA
EAO 14-612.041
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英國(guó)ONDRIVES變速箱和減速器E15-4A
PNEUMAX 1.5508E+11
EA BC111020
DATALOGIC 95ACC2830 ST-5099 S300 FIXED BRACKET
EAO 82-10-002568
RIEGLER 196.388
0199899U PLP20.14S0-04S5-LBE/BC-N
RIEGLER 7.DMA.63005
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UNIVER KD2000800030M
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UNIVER W7000400035
SCHNEIDER ZBYF2303
AVENTICS 822341904
GIEBEL Adsorber varioLINE 510-MA
DATALOGIC 952001590 S50-PA-5-U03-NN luminesc npn no-nc M12
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01999835 MOTOR PLM20.11,2S0-31S1-LOC/OC-N-EL-H
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020145AG PLP20.9D0-03**-LEA/EA-N-EL FS
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DATALOGIC 937501032 MATRIX 210 213-110 WVGA-FAR-ETH-ST
英國(guó)ONDRIVES變速箱和減速器UPSG4.0-65PH-K
LINMOT直線(xiàn)電機(jī)PL02-20x400/340-LC
AVENTICS R480072286
AVENTICS P493A3131000A00
CIRCLE SEAL 232S-10PP
019991NZ MOTOR PLM20.25D0-82E2-LGD/GE-N-EL-VPIF(120)
EAO 704.042.418
PIZZATO NF B110BB-DN0.38
019984RT PLP20.9S0-03S1-POD/OC-N-EL-AV
CAMOZZI 32F2A020A055 32F2A020A055 CILINDRI COMPATTI SERIE 32
CAMOZZI PM11-SCS16 PM11-SCS16 TARATO 4,7 BAR PRESSOSTATO
SCHNEIDER KTA1250ET31A
F013114 TC5-B-2-K-5-Q-I-B-3 020X000X00015XX
SCHNEIDER VDICF53306P
MD MICRODETECTORS傳感器MS3/00-0E
SCHNEIDER XB5AACUST06
MD MICRODETECTORS傳感器MDI63F 260
SCHNEIDER H5A10
CAMOZZI 62M2P050A1220 62M2P050A1220 CILINDRI S.62
CAMOZZI 45NHT040A2000 45NHT040A2000 GUIDE GUIDE ANTIROTAZIONE
HENGSTLER 532678 GEBER RI58-D/ 1024EF.42KH
HENGSTLER 570466 GEBER AR63/G360FQ.76A48
MD MICRODETECTORS傳感器MDI58G 1358
CAMOZZI 62M2P080A0500S01 62M2P080A0500S01 CILIND. S.62 22012707
MP FILTRI GUO475DINVTN
CAMOZZI 1431 6/4-1/4-V 1431 6/4-1/4-V RACCORDI RAPIDI FKM
AVENTICS 3610807500
MD MICRODETECTORS傳感器MDI63F 745
DA2D3128050/BR DM3405071-01/16-G KU300102 PM342/B V180614
PIZZATO FK 3415
SCHNEIDER LV431219
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另外，SSR的性質(zhì)還與接通時(shí)的電流上升率di/dt密切相關(guān)。di/dt超過(guò)某一值會(huì)使SSR的可控硅輸出器件損壞。為避免上述浪涌電流對(duì)SSR的損壞，可不同程度的降額使用SSR，必要時(shí)，可在負(fù)載電路中串聯(lián)電阻，將浪涌電流和可能發(fā)生的短路電流限制在SSR所允許的過(guò)負(fù)載范圍內(nèi)，也可利用快速熔斷的絲來(lái)保護(hù)SSR。對(duì)于SSR，特別對(duì)交流SSR，電壓指數(shù)上升率是一個(gè)重要參數(shù)。這是因?yàn)楫?dāng)SSR關(guān)斷時(shí)，若輸出端電壓上升率超過(guò)SSR規(guī)定的dv/dt，可能使SSR誤接通，嚴(yán)重時(shí)會(huì)造成SSR的損壞一般SSR規(guī)定的dv/dt為100v/us，也有的達(dá)200v/us。
