1747-L541 /C

1747-L541 /C

1747-L541 /C

1747-L541 /C

1747-L541 /C

通常如何进行敏感端口的旁路处理呢？以下举一个简单但非常经典的案例。如图5所示：正常工作时，按照左图进行设计，电路可以按照预定程序运行。当测试4KV脉冲群性能时，

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则容易出现三极管不受控、误动作的情况。在系统中表现出来的现象就是继电器误跳动，一些指示灯或者一些装置闪烁跳动等。这实际上是I/O口的走线较长或者控制回路较大时，容易耦合高频信号，从而产生误动作。添加旁路电容，可以减少高频信号的耦合，减小对端口的干扰，提高产品的一致性和可靠性。当然，这只是提供一种解决方法，实际上可以用优化布局等方法去解决。

图5 典型端口处理案例原理图

EMC的测试大部分属于高频干扰，容易通过地线和器件的寄生参数直接干扰后端的用电电路，因此，脉冲群影响继电器误动作，共模浪涌引起系统重启等现象多有发生，只有恰当的电源选型加上优质的系统设计，才能实质性的提高配电终端的可靠性。

3060-01784 AMAT BRGBALL10MMBOREX30MMODDUPLEXG-33

3060-01795 AMAT BRG .1875 X .3125 SST (SPARE FOR 0190-77

3060-01797 AMAT BRG BALL 5/8"OD CAM FOLLOWER (SPARE FOR

3060-01798 AMAT BRG 1/8" ID 5/16" OD SST SPARE FOR 0190-

3060-01799 AMAT BRG 1/4 X 5/8 DBL SHIELD FLG (SPARE FOR

3060-01803 AMAT BRG SQUARE DRIVE (SPARE FOR 0190-77171)

3060-01804 AMAT BRGSLEEVEROLLERASSY

3060-01820 AMAT Bearing

3060-90060 AMAT BEARINGS

3060-90076 AMAT BRG NEEDLE ROLLER

3060-90077 AMAT BEARING

3060-90091 AMAT BALL BEARING

3060-90156 AMAT BRGBALL3/4"x1/2"x0.1562WIDE

3060-90206 AMAT BRG LINEAR

3060-90207 AMAT BRG INNER RING

3060-90208 AMAT BRG NEEDLE

3060-90224 AMAT Bearing

3060-90226 AMAT BEARINGSPHER.SELF-LUB 25DIA

3060-90254 AMAT BEARINGKAYDON

3060-90257 AMAT BRGTRACK ROLLER19 OD

3060-90258 AMAT BRG.TRACK ROLLER 19 OD ADJ.

3060-90286 AMAT BEARING 140 X 175 X 18 DP. GROOVE

3060-90287 AMAT BEARING BALL 40x17x12 (2 SEALS SKF)

3060-90288 AMAT BEARING BALL 50X80X16 (2 SEALS)

3060-90290 AMAT BALL BEARING

3060-90303 AMAT BRG SPH RAD GE-35 UK 2RS

3060-90307 AMAT BRGROLLER CAM FOLLOWER 30mm

3060-90317 AMAT BEARING H XFM-0405-04

3060-90317 AMAT BEARING H XFM-0405-04

3060-98032 AMAT ROD END BRG.6 BOREM6MALERH

3060-99052 AMAT BEARING. LINEAR MINIATURE LM GUIDE. NO

3070-00035 AMAT BLWS ASSY OVAL T.3 W/FLANGES

3070-00038 AMAT BLWS FLEX 4.25"ID X 5.25"OD X 2.36"LG

3070-00039 AMAT BLWS FLEX 3.25"ID X 4.25"OD X 2.36"LG

3070-01004 AMAT

3070-01005 AMAT BLWSBOSTP6.0

3070-01017 AMAT BELLOW 1" TUBE OPX

3070-01019 AMAT Bellows Assy.

3070-01041 AMAT BLWS SPIN SINK 2 (SPARE FOR 0190-77171)

3070-01042 AMAT VALVE METERING 1/4 SURGELOCK

3070-01048 AMAT BELLOWS....................

3070-02817 AMAT GAS LINE

3080- 01063 AMAT Belt TMG 1/5 Pitch x 3/8 W x 55 GRV x 11 L Neoprene

3080-00041 AMAT BELT TIMING 2.5P 4W X 1070LG

3080-00061 AMAT BELT TMG HTD 5MMP 15MMW 1420MML BLK

3080-00074 AMAT BELTTIMING EAGLE PD 8MM PITCH 17MM WID

3080-00083 AMAT BELT TMG 12MM BELT WIDTH AT10 PITCH END

3080-00091 AMAT BELT TIMING TRULY ENDLESS 12W AT5 9

3080-01002 AMAT BELT TIMING .0816 X 1/4 WIDE (PACK OF 10)

3080-01006 AMAT TIMING BELT .0816P X 1/8 (PACK OF 10)

3080-01006 AMAT TIMING BELT .0816P X 1/8 (PACK OF 10)

3080-01006* AMAT BELT TMG .0816P 1/8W 77T POLYURETHANE

3080-01007 AMAT Belt

3080-01015 AMAT Belt

3080-01015 AMAT BELT TIMING

3080-01020 AMAT BELT POSITIVE DRIVE 3/8"

3080-01021 AMAT Belt

3080-01021 AMAT BELT TIMING 3/8P 25T

3080-01025 AMAT TIMING BELT

3080-01027 AMAT Belt

3080-01027 AMAT BELT TIMING 1/5 P

3080-01030 AMAT Belt

3080-01031 AMAT TIMING BELT 3MM PITCH 6MM

3080-01031 AMAT TIMING BELT 3MM PITCH 6MM

3080-01035 AMAT Belt

3080-01035 AMAT TIMING BELT .082 PITCH X 1/8" 90

3080-01036 AMAT Belt

3080-01038 AMAT BELT

3080-01039 AMAT TIMING BELT 0.816 PITCH

3080-01039 AMAT TIMING BELT 0.816 PITCH

3080-01041 AMAT Belt

3080-01041 AMAT BELT TIMING .080P

3080-01042 AMAT BELT-TIMING

3080-01044 AMAT MARON BELT3/8 PITCH 1/2 W

3080-01048 AMAT Belt

3080-01049 AMAT Timing Belt

3080-01052 AMAT Belt

3080-01052 AMAT BELT RF MATCH

3080-01054 AMAT Belt

3080-01059 AMAT Belt

3080-01059 AMAT HEATER LIFT BELT

3080-01063 AMAT Belt

3080-01102 AMAT Belt

3080-01105 AMAT Belt

3080-01113 AMAT Belt

3080-01114 AMAT Belt

3080-01114 AMAT BELT THROTTLE VALVE HIGH TEM (PACK OF 10)

3080-01119 AMAT A_DRIVE BELT

3080-01124 AMAT Belt

3080-01126 AMAT PLATEN DRIVE BELT

3080-01128 AMAT Belt

3080-01129 AMAT BELT SHORT 2W & 4W LINEAR TRACK 150 MXL

3080-01140 AMAT BELT TMG 1/5P 3/8W 150TEETH URETHANE

3080-01147 AMAT TIMING BELT 10 MM X 1100MM

3080-01149 AMAT Belt

3080-01158 AMAT TIMING BELT

3080-01163 AMAT Timing Belt-Kevlar-new

3080-01163 AMAT Belt

3080-01173 AMAT BELT TMG 1/5P 3/8W 148GR 29.6"L NYL/NEO

3080-01182 AMAT BELT TMG 5MMP 16MMW 340MML 68T BRECOFLEX

3080-51000 AMAT BELT

3080-51001 AMAT O RING BELT

3080-51002 AMAT O-RING

3080-51003 AMAT O-RINGS

3080-51005 AMAT TIMING BELT

3080-51006 AMAT BELT

3080-90002 AMAT BELT DRIVE

3080-90028 AMAT Belt

3080-90029 AMAT BELT

3080-90032 AMAT BELT

3082M-6MM-6MM AMAT COUPLING

3090-01068 AMAT BOLT SOCKET HD VENTED

3090-01092 AMAT SCREW TEFLON (PACK OF 10)

3090-01106 AMAT BOLT 12PT HD 5/16-24 X 1.5 SST SLVRPLT

3090-01108 AMAT BOLT HEX HD 1/2 X 1-1/2L SST SLRV-PL

3090-01110 AMAT BOLT 12PT HD 1/4-28 X 3/8 304/316 SST SLVRPLT

3090-01110 AMAT BOLT 12PT HD 1/4-28 X 3/8 304/316 SST SLVRPLT

3090-01131 AMAT SCREW (PACK OF 10)

3090-01131* AMAT SCR CAP SKT HD 1/2-20X2-1/2L HEX SKT S

3090-01161 AMAT BOLT MTK M12

3090-01256 AMAT BOLT SHLD M3 X 110L

3090-02039 AMAT SCREW (PACK OF 10)

3100-00009 AMAT BOX CABLE/POWER SUPPLY GREY 9.1X7.9X4.4

3100-00092 AMAT JUNCTION BOX 10-PORT SNAP W/0.12M BLACK

3100-01045 AMAT C. Calibration Box

3100-01066 AMAT Calibration box

3100-01078 AMAT BOX SWITCH 4-WAY RJ11 CONN

3100-01111 AMAT ELECTRONICS BOX ASSY

310-491708-1 AMAT CERAMIC PINS

3110-00031 AMAT MANUAL VME-II OPERATION

3110-01034 AMAT MNLPROCESS/XFR CHAMBER THROT VALVE MKS T

3120-01021 AMAT BRAKE LINEAR DRIVE

3120-90069 AMAT BRAKE.CLUTCH TYPE FAILSAFE.FSBR015 W/M

3130-00051 AMAT BUMP PAD VINYLNITRILE TRIANGULAR .50

31-31144-00 AMAT ADAPTER 1/8NPTX1/8T

31-31201-00 AMAT VALVE ESS CONNECTOR

3140-00035 AMAT BSHG ASSY KEYLESS TRANTORQUE 11MM SHAFT

3140-00084 AMAT FIBER OPTIC HING

3140-01014 AMAT BRG BALL BSHG 2.0ID X 3.0OD X 4.0L

3140-01016 AMAT BRG BALL BHSG 1.25OID X 2X2.62

3140-01017 AMAT BEARING LINEAR PILLOW BLOCK

3140-01020 AMAT Bearing

3140-01022 AMAT hing Isolator

3140-01034 AMAT Bearing

3140-01034 AMAT BALL HING

3140-01035 AMAT Bearing

3140-01052 AMAT BSHG SNAP-IN.625ID

3140-01088 AMAT HING TAPERED

3140-01127 AMAT BSHG ROLLER ASSY (SPARE FOR 0190-77171)

3140-01127 AMAT HINGROLLERASSY

3140-01134 AMAT HING 1" SHAFT

3150-00105 AMAT CAM 50D INTEGRAL SEAL

3150-01001 AMAT CAM FOLLOWER

3150-01003 AMAT CAM FOLLOWER 5/8W 1/4-28 STUD

3150-01004 AMAT CAM FOLLOWER 5/8" X .440" M

3150-01005 AMAT Bearing

3150-98002 AMAT CAM FOLLOWER 19 O/Dx6 I/Dx14

3160-00074 AMAT SMARTPROBE ASSUP CHEM. NORYL RETAINER

3160-00075 AMAT SMARTPROBE GAMMA CHEM. NORYL RETAINER

3160-00076 AMAT SMARTPROBE SUPP CHEM. NORYL RETAINER