A BREATHLESS FINAL FLURRY; A Bad Night for the Goalies: Petr Cech's Error (above) Set the Stage for Turkey's Dramatic Victory and Left the Chelsea Star Devastated (Right) While Turkey No 1 Volkan Also Suffered a Moment of Madness as He Was Sent off for a P ...
一、OB2269光耦开关电源的基本原理 OB2269是一款常用于开关电源的光耦合器,也称为光隔离器。光耦合器是一种通过光信号来传输电信号的器件,常用于隔离电路中的不同部分,以增加安全性和减少电气噪声。在开关电源中,光耦合器通常用于反馈和控制电路,以实现输出电压和电流的稳定。 二、OB2269光耦开关电...