6ES7658-5AF17-0CA5 6ES7810-4CC08-0KA5 6ES7810-4CC10-0KA5 6ES7810-4CC10-0YA5     小戴：（） 传真： QQ：         直流电源 直流电源（DC power）有正、负两个电极，正极的电位高，负极的电位低，当两个电极与电路连通后，能够使电路两端之间维持恒定的电位差，从而在外电路中形成由正极到负极的电流。 单靠水位高低之差不能维持稳恒的水流，而借助于水泵持续地把水由低处送往高处就能维持一定的水位差而形成稳恒的水流。与此类似，单靠电荷所产生的静电场不能维持稳恒的电流，而借助于直流电源，就可以利用非静电作用（简称为“非静电力”）使正电荷由电位较低的负极处经电源内部返回到电位较高的正极处，以维持两个电极之间的电位差，从而形成稳恒的电流。因此，直流电源是一种能量转换装置，它把其他形式的能量转换为电能供给电路，以维持电流的稳恒流动。 交流电源 交流电源能够提供一个稳定电压和频率的电源称交流稳定电源。目前国内多数厂家所做的工作是交流电压稳定。下面结合市场有的交流稳压电源简述其分类特点。参数调整（谐振）型这类稳压电源，稳压的基本原理是LC串联谐振,早期出现的磁饱和型稳压器就属于这一类.它的优点是：结构简单,无众多的元器件,可靠性相当高稳压范围相当宽,抗干扰和抗过载能力强。缺点是：能耗大、噪声大、笨重且造价高。         小戴：（） 传真： QQ：         DELTAV KJ4001X1-CH1 12P1811X012 RTD Terminal Block DELTAV KJ4001X1-HA1 12P0949X022 Local Bus Extender Cable DELTAV KJ4002X1-BB1 12P1728X042 VE4055S2C0 Right 8 Wide Vertical Carrier DELTAV KJ4002X1-BA1 12P1727X042 VE4055S1C0 Left 8 Wide Vertical Carrier DELTAV KJ4010X1-BF1 12P0831X042 Local Bus Left Extension DELTAV KJ4010X1-BG1 12P0830X042 Local Bus Right Extension DELTAV KJ4010X1-BG1 12P0830X072 LOCAL BUS RIGHT EXTENDER DELTAV KJ4010X1-BF1 12P0831X062 LOCAL BUS LEFT EXTENDER DELTAV KJ4010X1-BE1 12P0631X012 CABLE DELTAV 12P0631X012 DELTAV PARALLEL CORD DELTAV KJ4001X1-HA1 12P0949X022 LOCAL BUS EXTENDER CABLE DELTAV KJ4002X1-BF2 12P3866X012 DELTAV BOTTOM EXTENDER CABLE DELTAV KJ4002X1-BE1 12P4048X012 DELTAV TOP EXTENDER CABLE DELTAV KJ4001X1-GB1 12P0831X022 LOCAL BUS LEFT EXTENDER DELTAV KJ4001X1-CA1 12P0623X022 I/O TERMINAL BLOCK DELTAV KJ3003X1-EA1 12P0921X012 SER. INT. TERMINAL BLOCK DELTAV 8605-FT-TC VER: MT02 FIELD TERM. THERMOCOUPLE DELTAV KJ4001X1-BB1 12P0619X012 8 WIDE I/O CARRIER DELTAV KJ4001X1-BA1 12P0679X012 2 SLOT CARRIER DELTAV KJ4001X1-BA2 12P1562X012 2 WIDE CARRIER W/ RED DELTAV 8105-TI-TC VER:MT01 4-CHANNEL THC/MV INPUT DELTAV KJ3002X1-BA1 12P0680X122 AI MODULE FINAL ASSY DELTAV KJ3001X1-BB1 12P0550X112 DI 24VDC DRY CONTACT DELTAV KJ3001X1-BC1 12P0550X112 DI 24VDC DRY CONTACT DELTAV KJ3001X1-BG1 12P0557X032 DO 24VDC ISOLATED DELTAV KJ3001X1-BH1 12P0558X102 DO VAC ISOLATED DELTAV KJ3002X1-BG2 12P1731X062 THERMOCOUPLE mV DELTAV KJ2003X1-BA2 12P2093X112 CONTROLLER MD DELTAV KJ2003X1-BA2 12P2093X112 CONTROLLER MD DELTAV KJ1501X1-BB1 12P0678X012 SYSTEM POWER SUPPLY (DC/DC) DELTAV 8910-PS-DC SYSTEM POWER SUPPLY 24VDC DELTAV KJ2003X1-BA2 12P2093X072 CONTROLLER MD DELTAV KJ2003X1-BA2 12P2093X072 CONTROLLER MD DELTAV KJ3001X1-BH1 12P0558X112 DO MODULE VAC ISOLATED DELTAV KJ4001XBA2 2 WIDE CARRIER MERSON DeltaV KJ1501X1-BA2  DeltaV KJ1501X1-BB1 12P0678X022 System Passthrough Power Supply 12/12VDC(DC/DC) DeltaV KJ1501X1-BC1 DeltaV KJ1501X1-BC2 12P2186X042 System Dual DC Power Supply (DC/DC) DeltaV KJ1501X1-BC3 12P3935X022 System Power Supply(DC/DC) DeltaV KJ1501X1-BK1  DeltaV KJ1502X1-BA2 55P0518X032 BULK AC TO 24 VDC POWER SUPPLY