光耦继电器归于固态继电器,一般电磁继电器靠电流通过线圈使铁芯变成有磁性的磁铁吸合衔铁,从而使相关的触点动作控制负载的通断,而光耦继电器没有触点,其作业原理与光耦有点类似。其内部的发光二极管是用来向光电元件放射光线的,光电元件接受光线并控制输出场效应管导通或截止。
光耦继电器还有另一种可控硅整流管(SCR)输出,它的负载电流比场效应管更大,后者可抵达数安培,而前者可抵达几十安培。相对于电磁继电器,光耦继电器由于没有触点引起的磨损,使用寿命是无限的,一同也具有无颤动、无切换动静等特性,与电磁继电器相同可控制各种负载(灯泡、发光二极管、加热器、马达等)。
在输出截止状态下,当电池通过限流电阻施加到光耦继电器的输入端时,输入端的发光二极管将发光,宣告的光照射到对面的光电元件,光电元件根据光的强度将其转换成相应的电压,一同控制电路向场效应管的栅极充电,当栅极的电压抵达场效应管的打开电压时,场效应管初步导通,灯泡发光。这个进程中消耗的时间则称为动作时间。
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PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
PS7431-1A-E3-A | C231S | G3VM-351VY | G3VM-351VY(TR05) | G3VM-351VY(TR) | G3VM-401VY(TR05) |
光耦继电器优势替代料号系列:G3VM-351VY,G3VM-401VY(TR05),G3VM-401VY(TR05)。