科啟達(dá)電子有限公司回收電子料（型號高價回收，價格更理想）

有貨的老板可以報來問價就清楚長期高價收購德州TI,AD系列,鎂光，仙童，等集成IC單片機(jī) 芯片 集成IC 二三極管 內(nèi)存 繼電器 觸摸IC 有貨的聯(lián)系 收購一切IC電子料，提供單顆、清單、工廠統(tǒng)貨一切報價。有貨聯(lián)系，信息秒回！�。∩钲�，上海，北京，蘇州，香港 各種貨源者報貨合作。

光耦合器的主要優(yōu)點是：信號單向傳輸，輸入端與輸出端完全實現(xiàn)了電氣隔離，輸出信號對輸入端無影響，抗干擾能力強(qiáng)，工作穩(wěn)定，無觸點，使用壽命長，傳輸效率高。光耦合器是70年代發(fā)展起來產(chǎn)新型器件，現(xiàn)已廣泛用于電氣絕緣、電平轉(zhuǎn)換、級間耦合、驅(qū)動電路、開關(guān)電路、斬波器、多諧振蕩器、信號隔離、級間隔離 、脈沖放大電路、數(shù)字儀表、遠(yuǎn)距離信號傳輸、脈沖放大、固態(tài)繼電器(SSR）、儀器儀表、通信設(shè)備及微機(jī)接口中。在單片開關(guān)電源中，利用線性光耦合器可構(gòu)成光耦反饋電路，通過調(diào)節(jié)控制端電流來改變占空比，達(dá)到精密穩(wěn)壓目的，實現(xiàn)信號接收轉(zhuǎn)移。
光電耦合器分為兩種：一種為非線性光耦，另一種為線性光耦。非線性光耦的電流傳輸特性曲線是非線性的，這類光耦適合于開關(guān)信號的傳輸，不適合于傳輸模擬量。常用的4N系列光耦屬于非線性光耦。
線性光耦的電流傳輸特性曲線接近直線，并且小信號時性能較好，能以線性特性進(jìn)行隔離控制。常用的線性光耦是PC817A—C系列。

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