引言光耦合器(也称作光隔离器) 是半导体器件,容许电信号在电路或系统之间传送,并保证电路或系统之间被电气隔离。典型的双列直插式(DIP)光耦合器包含三个基本单元:一个红外(IR) 发光二极管(LED)、一个输出光电检测器,以及对于相互连接至关重要耦合介质。当正向电流(If) 通过LE Introduction Optocouplers (also referred to as opto-isolators) are semiconductor devices that allow electrical signals to be transmitted between circuits or systems and to ensure electrical isolation between circuits or systems. A typical Dual In-Line (DIP) Optocoupler consists of three basic units: an infrared (IR) light emitting diode (LED), an output photodetector, and a coupling medium that is critical to interconnect. When the forward current (If) through the LE