高速光电耦合器是什么 高速光电耦合器的工作原理

Release time：2022-07-28
author：Ameya360
source：网络
reading：3026

　　高速光电耦合器和光电耦合器一样，它将发光二极管和光敏三极管组装在一起并利用光信号来传递信息，实现电路信号的电->光->电的传输(光电耦合电路)。本文Ameya360电子元器件采购网给大家来讲一讲什么是高速光电耦合器以及高速光电耦合器的工作原理。

高速光电耦合器是什么 高速光电耦合器的工作原理

　　一、什么是高速光电耦合器

　　高速光电耦合元件是以光作为媒体来传输电信号的一组装置，目的是为了电路的输入与电气上处于完全隔离的状态，实现输入输出部分的电气隔离，提高其抗干扰能力和可靠性及稳定性，这种信息传递方式优于所有采用变压器和继电器作隔离来进行信号传递的一般解决方案，但是它的优势在于高速，也就是信号的传输速度快，在对信号的传输有速度要求的设计中是很常用的。

　　二、高速光电耦合器的工作原理

　　它的工作原理是信号从脚2和脚3输入，发光二极管发光，经片内光通道传到光敏二极管，反向偏置的光敏管光照后导通，经电流-电压转换后送到与门的一个输入端，与门的另一个输入为使能端，当使能端为高时与门输出高电平，经输出三极管反向后光电隔离器输出低电平。当输入信号电流小于触发阈值或使能端为低时，输出高电平，但这个逻辑高是集电极开路的，可针对接收电路加上拉电阻或电压调整电路。



（"Note: The information presented in this article is gathered from the internet and is provided as a reference for educational purposes. It does not signify the endorsement or standpoint of our website. If you find any content that violates copyright or intellectual property rights, please inform us for prompt removal."）

Previous：光电开关如何使用 与光纤开关有何区别

Next：什么是瓷管电阻器 瓷管电阻器的作用有哪些

Online messageinquiry

reading
Popular categories
Boxes, Enclosures, Racks Cables, Wires Circuit Protection Connectors, Interconnects Development Kits Electromechanical Embedded Solutions Fans, Thermal Management Optoelectronics Others Passive Components Power Semiconductors Sensors, Transducers Test and Measurement
  • Week of hot material
  • Material in short supply seckilling
model brand Quote
CDZVT2R20B ROHM Semiconductor
RB751G-40T2R ROHM Semiconductor
TL431ACLPR Texas Instruments
MC33074DR2G onsemi
BD71847AMWV-E2 ROHM Semiconductor
model brand To snap up
IPZ40N04S5L4R8ATMA1 Infineon Technologies
BP3621 ROHM Semiconductor
TPS63050YFFR Texas Instruments
STM32F429IGT6 STMicroelectronics
BU33JA2MNVX-CTL ROHM Semiconductor
ESR03EZPJ151 ROHM Semiconductor
Hot labels
ROHM
IC
Averlogic
Intel
Samsung
IoT
AI
Sensor
Chip
Original authorized brand
More Licensed Brands>>
Information leaderboard
  • Week of ranking
  • Month ranking

About us

Qr code of ameya360 official account

Identify TWO-DIMENSIONAL code, you can pay attention to

AMEYA360 weixin Service Account AMEYA360 weixin Service Account
AMEYA360 mall (www.ameya360.com) was launched in 2011. Now there are more than 3,500 high-quality suppliers, including 6 million product model data, and more than 1 million component stocks for purchase. Products cover MCU+ memory + power chip +IGBT+MOS tube + op amp + RF Bluetooth + sensor + resistor capacitance inductor + connector and other fields. main business of platform covers spot sales of electronic components, BOM distribution and product supporting materials, providing one-stop purchasing and sales services for our customers.

Please enter the verification code in the image below：

verification code