Access control system has already gone beyond the simple door and key management, it has gradually developed into a complete set of access management system. It plays an important role in the work environment safety, personnel attendance management and other administrative work.

       Access control power supply design：

Application requirements: reliability, quality certification, safety, functionality
The core part of the access control system, equivalent to the CPU of the computer, is responsible for the processing, storage and control of the input and output information of the whole system.

 TVS transient suppression diode：