Silicon chain open circuit protection device

The invention belongs to the field of circuit protection, and particularly relates to a silicon chain open circuit protection device. The silicon chain open circuit protection device provided by the invention is a voltage stabilization protection device which can generate related protection actions when a voltage reduction silicon chain has an open circuit fault, and can prevent a direct current system from controlling a bus to lose power. According to the silicon chain open circuit protection device provided by the invention, a silicon chain circuit is connected in series between a closing bus and a control bus, and the silicon chain open circuit protection device comprises a standby silicon chain, a power supply unit, a central processing unit, a detection unit and an execution unit. The silicon chain open circuit protection device uses the control bus voltage and the silicon chain current as the main criterion for judging whether the silicon chain is broken, and is accurate and reliable. The device is simp