XVC767AE105 3BHE007209R0105 is the front-end signal preprocessing small board of AC800PEC power electronic control system, installed on main processor or mixed I/O card as auxiliary signal conditioning unit. It undertakes filtering, amplification, temperature drift compensation and galvanic isolation of CT/PT secondary AC signals, RTD temperature signals and 4~20mA analog signals from field sensors. Built-in active anti-interference filter circuit effectively suppresses high-frequency ripple, motor EMI and ground loop interference in power plant and metallurgical harsh environments. Ultra-fast 1ms signal refresh cycle ensures microsecond-level closed-loop control precision for excitation voltage regulation and drive PWM algorithms. Compact PCB design with full conformal coating, it is essential auxiliary replacement spare part for power plant generator excitation and metallurgical medium voltage drive control cabinets.XVC767AE105 3BHE007209R0105 是 AC800PEC 电力电子控制系统前端小型信号预处理板，装配在主控或混合 IO 卡上作为辅助信号调理单元，完成现场 CT/PT 二次交流信号、RTD 温度信号、4~20mA 模拟信号的滤波、放大、温漂补偿与电气隔离；内置有源抗干扰滤波回路，高效抑制电厂、冶金工况高频纹波、电机电磁干扰与地环路扰动；1ms 超快信号刷新周期，保障励磁调压、传动 PWM 算法微秒级闭环控制精度；紧凑型全三防 PCB 板，是火电厂发电机励磁、冶金中高压传动控制柜必备辅助替换备件。